Transcript
GRUNDFOS DATA BOOKLET
Fire NKF Grundfos fire systems Fire systems with electrically powered (50 Hz) pumps approved by VdS
Contents
VdS standard Introduction to VdS VdS standards Standards approval process Certificate Overview of fire system Fire pumps Duty range Motor power rating Specifications Electrical motors Jockey pumps Controller Commissioning
Motor data 3 3 3 4 8 9 9 11 11 12 12 12 12
Product description Introduction NKF pump features
13 13
14
Product range Product numbers VdS approval numbers
15 15
Identification Type key Shaft seals Nameplate
17 17 18 18 19 20 20 20
Operating conditions Pump unit location Ambient temperature and altitude Duty range of shaft seal Inlet pressure Maximum inlet pressure Minimum inlet pressure
21 21 21 21 21 21
Installation and operation Piping Alignment
2
Bare shaft pumps NKF, model B NKF, model A Flange dimensions
24 25 26
Curve charts How to read the curve charts Curve conditions Selection of pumps Calculation of total head Performance tests VdS certificate
27 28 28 28 28 28
NKF 50-200, 2-pole NKF 65-200, 2-pole NKF 80-200, 2-pole NKF 80-250, 2-pole NKF 150-400, 4-pole NKF 150-500, 4-pole NKF 200-500, 4-pole
29 30 31 32 33 34 35
Technical data 16 16 16
Construction Sectional drawing, NKF, model B Material specification Sectional drawing, NKF, model A Material specification Mechanical construction Surface treatment Test pressure Motor
23 23
Performance curves
Performance range NKF, 2- and 4-pole
Motor range, 2-pole Motor range, 4-pole
22 22
Installation dimensions
36
Controller General description Controller versions Identification Construction Control panel Potential-free signalling contact Cables Optional equipment Controller components Operating conditions Installation General information Electrical connection Motor connection Operation Fire pump Jockey pump Compressor Pressure-maintaining pump Level indication Motor valve Technical data Optional equipment Product numbers Options Cabinet dimensions
48 48 48 49 49 50 50 50 50 51 51 51 51 51 52 52 52 52 52 52 52 52 52 53 53 53
VdS standard
Fire NKF
Introduction to VdS VdS Schadenverhütung GmbH is an independent, international, accredited and notified testing and certification institution for fire prevention and safety technology as well as for physical and electronic protection against intrusion. ("Schadenverhütung" is the German word for "loss prevention".) Accredited according to the EN 45000 series of European standards, VdS Schadenverhütung is a member of the European Fire and Security Group (EFSG). VdS experts are represented in all relevant German and international committees. The concept behind VdS recognition is to ensure tested and certified quality in the products and services offered in the safety and security markets. This is equally advantageous for user and supplier. For further information on VdS, see www.vds.de.
VdS standards The products in this data booklet have been built to comply with VdS standards on water-based fire fighting systems, described in the following documents: • VDS CEA 4001:2005-09 (02): Planning and installation. • VDS 2100: Guidelines for water-based fire fighting systems. • VDS 2344: Procedures for testing and approval of equipment, components and systems used in fire protection and security control.
Standards approval process Grundfos is to test the pumps and fill in the application forms for each individual pump size. The following documentation should to submitted to the VdS: • complete drawings with list of parts and materials of the major components • a statement regarding quality and production (ISO 9001 + Annex A & D) • a complete data sheet with technical information • complete installation and operating instructions. If the application forms are accepted, VdS will attend the final test at the Grundfos premises. If the evaluation of the test results is positive, VdS will issue a certificate on the approval of the pump.
3
VdS standard
Fire NKF
Certificate
VdS_certif_1
U
pd
at
ed
ce
rti
fic
at
e
is
pe
nd
in
g.
Example of VdS certificate of approval
4
Fire NKF
VdS_certif_2
VdS standard
5
Fire NKF
VdS_certif_3
VdS standard
6
Fire NKF
VdS_certif_4
VdS standard
7
VdS standard
Fire NKF
Overview of fire system 4
12 A
11 )(
x
x
13
x
x
x
14
9 10
A
7
8
3
7 6
1a
1
TM03 2959 5005
5
x
5a 2 Fig. 1 Overview of fire system Pos.
Description
Pos.
Description
Description
Fire pump, electrically powered
5a
Overflow
11
Overpressure backflow string
1a
Fire pump, diesel powered
6
Pressure tank
12
Fire hydrant
2
Jockey pump
7
Fire pump priming tank
13
Wet sprinkler system
3
Compressor
8
Water supply
14
Dry sprinkler system
4
Controller
9
Alarm valve
5
Intermediate water tank
10
Test-running string/bleed line
Fire system design A fire system typically consists of three pumps: one pressure pump (jockey pump) and two fire pumps, one duty and the other acting as standby. Each of the fire pumps is capable of achieving the required performance. Systems with only one fire pump or more than two fire pumps are, however, also seen. Function The duty and standby pumps are not powered by the same source. Either both pumps are electrically powered, supplied by two separate sources, or one pump is electrically powered and the other dieselpowered. This ensures that if one pump fails, for example due to fire damage, the other will operate. The pumps are pressure-controlled by pressure sensors. The pressure in the system is normally maintained by the pressure tank.
8
Pos.
1
If the system pressure drops, the water level and air pressure in the tank will decrease. The jockey pump starts to fill the tank, and the compressor to boost the pressure. If the jockey pump and the compressor succeed in boosting the water level and the pressure to a set value, both will stop. If a sprinkler has been activated and the water level and the pressure keeps falling, the duty pump will start. A further decrease in the pressure means that the duty pump is not running, and the standby pump will start. The same principle applies to the dry sprinkler system in which an air compressor maintains pressure from the alarm valve and through the sprinkler system. Although individually designed for the specific installation, each fire system must comply with VdS standards. Important! Requirements as to design, sizing and testing of fire protection systems vary from one country to another.
VdS standard
Fire NKF
Fire pumps
H [m]
Grundfos end-suction pumps approved by VdS are designed for the distribution of water in stationary sprinkler systems using either foam or water spray. They are operated in case of fire and during tests.
NKF 200-500
110
50 Hz
ø530
ISO 9906 Annex A ø512
100
250 kW
90
200 kW ø471
Materials Requirements of materials for VdS-approved pumps:
80 160 kW
ø446 70
132 kW 60
• impeller and wear rings made of bronze 50
40
• castings made of EN-GJL-250.
30
VdS requirements for EN-GJL-250 do not allow heads (H) above 110 metres and flows (Q) above 600 m3/h.
20
10
0
Pump characteristic VdS focuses strongly on the instabilities, due to sprinkler systems consisting of long and different pipe circuits. Two instable pumps may cause vibrations or breakdown. If the pump characteristic is instable, it is not allowed to exceed 5 %. See examples of instable (fig. 2) and stable (fig. 3) pump characteristics below. H [m]
NK 80-315
40
0
0
100
200
2000
300
4000
400
6000
500
8000
600
10000
700
12000
800
14000
Q [m³/h]
TM03 2796 4905
• wet parts such as shaft, washers and nuts made of stainless steel
Q [l/min]
Fig. 3 Stable pump characteristics
Duty range VdS operates with a concept known as Qzul (zulässig = permissible), see fig 4. The duty point of the pump must not be to the right of this limit. Qzul is defined on the basis of the pump NPSH curves. The following calculation must be made for the largest and smallest pump impeller diameter.
50 Hz, n = 1450 min-1 68 %
ø334
ISO 9906 Annex A
70 % 72 %
38
Find the flow at 4.5 m and 5.5 m NPSH
74 % 36
ø320
74.8 %
34 74 % 74.2 %
ø305
32
Multiply the value Q4.5 m NPSH by 1.2
72 % 30 70 %
73.3 %
ø290 28
68 %
Does the result exceed the value of Q5.5 m NPSH?
72.5 %
26
ø275
24
Yes
Qzul = Q5.5 m NPSH / 1.2
No
72.1 %
TM03 2795 4905
22
20
18
16
14 0
20
40
60
80
100
120
140
160
180
Qzul = Q4.5 m NPSH
Q [m³/h]
Fig. 2 Instable pump characteristics
9
VdS standard
Fire NKF
H [m]
NKF 50-200
68
50 Hz 64
ISO 9906 Annex A
ø219
60 22 kW
ø207
56
Qzul
52
18,5 kW
ø194 48 44
15 kW 40
ø170
36 11 kW
32 28 24 20 16 12 8 4 0
10
20
30
40
50
60
70
80
90
78 0
500
1000
100
99
110
1500
120
130
2000
Q [m³/h] Q [l/min]
P2 [kW] 24 ø219 20
NPSH [m] 20
ø207 16
16
ø194
12
12
ø170
8 ø219 (Max. NPSH)
4
5.5 4.5 4
ø170 (Min. NPSH) 0
0 0
10
20
30
40
Fig. 4 Indication of calculation of Qzul
10
50
60
70
80
90
93
100
110
120
110 119
130
Q [m³/h]
TM03 2794 4905
8
VdS standard
Fire NKF
Example The following example shows how Qzul has been shown for the pump characteristics in fig. 4.
Specifications Each curve chart is followed by a specification of technical data. See table below.
Qzul for ∅219 impeller: Manufacturer: Q4.5 m NPSH = 110 m3/h
Grundfos A/S Poul Due Jensens Vej 7A DK-8850 Bjerringbro
Fire pump model/size:
NKF 50-200
VdS approval No:
P 4050056
Q4.5 m NPSH x 1.2
Test day:
13-10-2005
110 x 1.2 = 132
Drawn by:
XXXXX XXXXXX
Date:
18-10-2005
Q5.5 m NPSH = 119 m3/h
Does the result exceed the value of Q5.5 m NPSH?
Yes
Qzul = Q5.5 m NPSH / 1.2 The curve is traced for:
Qzul ø219 = 119 / 1.2 = 99 m3/h
132 > 119
D2 normal:
219
The maximum permissible flow of an NKF 50-200 pump with ∅219 impeller is 99 m3/h.
D2 turned down:
170/194/207
b2:
14.2/12.5/12/11.6
Qzul for ∅170 impeller:
Dn S:
65
Dn D:
50
Emergency reserve displacement volume:
32.66 l/min, 1.96 m3/h 2 % of Qzul
Minimum coverage in metres:
30.5
The locked rotor torque traced at maximum power load:
Max. 0.5 Nm
Q4.5 m NPSH = 93 m3/h Q5.5 m NPSH = 93 m3/h Q4.5 m NPSH x 1.2 93 x 1.2 = 112 Does the result exceed the value of Q5,5 m NPSH?
Yes
112 > 93
VdS Approval No Each pump has its own VdS approval number.
Qzul = Q5.5 m NPSH / 1.2
D2 normal
Qzul ∅170 = 93 / 1.2 = 78 m3/h
The maximum permissible flow of an NKF 50-200 pump with ∅170 impeller is 78 m3/h.
D2 indicates the largest impeller diameter of the specific pump.
On the basis of Qzul ∅219 and Qzul ∅170, the limit Qzul can be drawn and the duty range of the impellers in between can be read.
D2 turned down D2 turned down indicates the reduced diameters of the impellers, approved for each model.
Motor power rating
b2 The impeller is of the closed type. The b2 dimension indicates the width of the opening where water leaves the impeller.
To ensure that the motor is capable of operating the pump at any time, so that it can deliver water, VdS requires an excess capacity of motor power. According to VdS, the motor power is found at 16 m NPSH. The example below is based on Qzul = 99 m3/h as previously calculated.
ø219
P2 necessary 16
NPSH [m]
ø207 ø194
12
ø170
8
20 16 12 8
4
ø170 (Min. NPSH)
ø219 (Max. NPSH)
0
4 0
0
10 20 30 40 50 60 70 80 90 100 110 120 130 Q [m³/h]
TM03 2931 4905
P2 required
20
TM03 2800 4905
P2 [kW ] 24
Fig. 5 Necessary and required power Fig. 6 b2 impeller dimension
When the impeller diameter is reduced, the b2 dimension is increased.
11
VdS standard DnS
Commissioning
The diameter of the internal flange on the suction side.
The installer should commission the complete fire unit before handing it over to the plant manager on site. Many potential issues of the complete fire system must be tested before commissioning to ensure a satisfactory system performance and identify any damage during installation.
DnD The diameter of the internal flange on the discharge side. Emergency reserve displacement volume If the pump runs against a closed valve, the emergency reserve displacement volume indicates the minimum flow to be led away from the pump to prevent breakdown within 48 hours. This flow must be led out of the pump bleed line. Minimum coverage in m Indicates the minimum head for which the pump is approved. Locked rotor torque traced at maximum power load Indicates the “break-away” torque of the pump.
Electrical motors Grundfos electrical fire systems are equipped with MMG-E motors (sourced HEM EFF2 motors) produced according to IEC 60034. Insulation class: F. Enclosure class: IP55.
Jockey pumps Grundfos CR pumps are used as jockey pumps, maintaining the water level in the pressure tank. Under normal conditions, the jockey pump is activated by the low-level switch in the pressure tank as a result of small leakages in the pipe systems filled with water. The jockey pump operates until it is deactivated by the highlevel switch. The jockey pump can also be activated in case one or more sprinklers are open, in order to maintain the water level in the pressure tank. There are no specific VdS requirements as regards the jockey pump.
Controller The controller for the electrical fire pump complies with the CEA 4001 standard. The Grundfos electrical fire system is equipped with VDS-approved controller, sourced externally. The controller has these features: • optional phase monitoring • colour red (RAL 3000) • compliance with IP 54. The controller can be mounted on the wall or fitted with stands to the base frame of the electrical fire fighting unit.
12
Fire NKF
Key components should be checked according to the descriptions in the respective installation and operating instructions. In addition, VdS stipulates that fire system tests should be carried out, for example: • pressure test of sprinkler circuits • values of all measuring devices (air pressure, water level, etc.) to the system • water flow to fire pumps • test of alarm system and interface to municipal fire department. The installer should supply the plant manager with the following documents: • Installation certificate, stating that the fire system has been installed according to VdS requirements • A complete set of installation and operating instructions and system drawings with specification of all components for the plant manager and the owner of the system.
Product description
Fire NKF
Introduction
NKF pump features
Grundfos Fire NKF pump units are typically used in fire fighting applications for supplying water to fire hose reels, fire hydrants or sprinkler systems.
NKF pumps are non-self-priming, single-stage, centrifugal, volute pumps. The pumps have these features:
This data booklet covers the range of electrically powered NKF end-suction pumps, designed and VdSapproved for use in fire systems.
• axial suction port, radial discharge port and horizontal shaft components
Pump designations • Fire NKF is an NKF end-suction pump with coupling and motor mounted on a common base frame. The unit can be incorporated in a fire system.
• dimensions and rated performance according to DIN 24256 and ISO 2858
• NKF is the pump alone. Pump range NKF pumps are available in these models:
• cast iron pump housing, bronze impeller, carbon steel shaft, bronze shaft sleeves and wear rings
• dynamically and hydraulically balanced rotating parts according to ISO 1940, class 6.3; hydraulically balanced impellers • two sturdy, antifriction, oil-lubricated bearings • shaft seal.
Model A: NKF 200-500. Model B: • NKF 50-200 • NKF 65-200 • NKF 80-200 • NKF 80-250 • NKF 150-400
Scope of delivery A complete Fire NKF unit assembled and supplied from factory normally comprises these elements: • a pump and motor mounted on a common base plate/frame
GrA1725
• NKF 150-500.
Fig. 7 Fire NKF end-suction pump and motor mounted on a base frame (basic version)
• a standard coupling protected by a coupling guard • plugs and screws in stainless steel. Fire NKF pumps can be ordered with or without VdSapproved controller.
13
14
20
TM02 9354 0507
20
30
40
50
60
70
80
90
100
120
H [m]
30
40
50
60
50-200/2
80
100
65-200/2
150
80-200/2
80-250/2
200
300
150-400/4
150-500/4
400
500
200-500/4
600
Q [m³/h]
800
50 Hz
NKF
Performance range Fire NKF
NKF, 2- and 4-pole
Product range
Fire NKF
Product numbers The product numbers are reference numbers for the Fire NKF pump unit version. All Fire NKF pump units receive a unique product number specified according to the order.
Pump unit Fire NKF 50-200
Fire NKF 65-200
Fire NKF 80-200
Fire NKF 80-250
Fire NKF 150-400
Fire NKF 150-500
Fire NKF 200-500
Motor power P2 [kW]
Basic unit
As standard, all Fire NKF pumps are with standard coupling. Fire pumps with spacer coupling are available on demand.
Compact unit
Flex unit 96273605
15
96157405
96273574
18.5
96157406
96273575
96273606
22
96157407
96273576
96273607
30
96157408
96273577
96273608
18.5
96157409
96273578
96273609
22
96157410
96273579
96273610
30
96157411
96273580
96273611
37*
96157412 96157413
96273581 96273582
96273612 96273613
30
96157414
96273583
96273614
37
96157415
96273584
96273615
45
96157416
96273585
96273616
55
96157417
96273586
96273617
45
96157418
96273587
96273618
55
96157419
96273588
96273619
75
96157420
96273589
96273620
90
96157421
96273590
96273621
45
96702927
96740889
96702937
55
96702928
96740890
96702938
75
96702929
96740891
96702939
90
96702930
96740892
96702940
110
96702931
-
96702941
110
96702932
-
96702942
132
96702933
-
96702943
160
96702934
-
96702944
200
96702935
-
96702945
250
96702936
-
96702946
132
96157432
-
96273632
160
96157433
-
96273633
200
96157434
-
96273634
250
96157435
-
96273635
*) Two different impeller diameters for the same motor size, see page 30.
VdS approval numbers Pump
VdS Approval No
NKF 50-200
P 4050056
NKF 65-200
P 4050057
NKF 80-200
P 4050058
NKF 80-250
P 4050059
NKF 150-400
P 4060069
NKF 150-500
P 4070013
NKF 200-500
P 4050089
The standard range has been composed on the basis of the following parameters:
Basic unit: Compact unit: Flex unit:
Pump and motor mounted on base frame. Pump, motor and controller * mounted on base frame. Pump and motor mounted on base frame, and controller * for wall mounting. As standard, the flex unit is delivered with a 5 m cable between pump and controller. Other lengths are available on demand.
*) The controller is without monitoring module and controller options. See section Controller, page 48.
• Pump housings have discharge flanges from DN 20 to DN 50. • Impellers are made of bronze. • Neck rings are made of bronze. The Fire NKF pump units are available in the following versions:
15
Identification
Fire NKF
Type key Fire system Example
Fire
NK
F
32
-125
/142
E
-F
-X
-D
-B
-A
-B
Fire: Fire system Pump type NK F: Pump approved for fire fighting Nominal diameter of discharge port (DN) [mm] Pump housing size [mm] Actual impeller diameter [mm] Driver E: Electric motor, 50 Hz Approval of pump F: VdS Approval of unit X: No approval Pipe connection D: DIN Controller B: For mounting on base frame W: For wall mounting X: No controller Shaft seal A: BAQE Coupling A: Standard B: Spacer
Shaft seals
Nameplate
NKF pumps are supplied with BAQE shaft seals.
The nameplate shows a Fire NKF with a rated flow of 150 m3/h at 2940 min-1. To deliver a rated head of 112 metres, the actual impeller diameter is 270 mm. See fig. 8.
Codes for shaft seals Positions (1) to (4) cover four pieces of information about the shaft seal: (2)
(3)
Material, rotating seal face Material, stationary seat Material, secondary seal and other rubber and composite parts, except the neck ring
The following table gives a short description of positions (1), (2), (3) and (4). Type
(1)
B
Pos.
Type
Short description of seal Rubber bellows seal
Fire NKF 80-250/270-E-F-X-D-B-A-B
Type: part No.
96157421
serial No.
123456789
Main Supply:
3X400V 50Hz
impeller diameter:
270
Q: P2: IP
150 55 55
m 3/h kW
Made in Germany P1
VdS
H: n: G:
112 2940 346
m min-1 kg
0640
pump VdS-approved
Material
TM
Pos.
(4)
Synthetic carbons:
16
(2) and (3)
A
Carbon, metal-impregnated (antimony (not approved for potable water))
Q
Silicon carbide
Pos.
Type
(4)
E
Material EPDM
65542145624565
(1)
Grundfos type designation
65542145624565
Example
Fig. 8 Example of Fire NKF nameplate
Construction
Fire NKF
Sectional drawing, NKF, model B 20
54
49
67 20 66a 66 11a 72a 77 105
159f
86 51 53 159f
TM01 7888 0203
6
Fig. 9 Sectional drawing, NKF 50-200, 65-200, 80-200, 80-250
Material specification Pos.
Component
Material specification
Pump housing
EN-GJL-250
11a
Key
Stainless steel DIN W.-Nr. 1.4301/AISI 304
20
Plug (drain, priming)
DIN W.-Nr. 1.1152
49
Impeller
G-CuSn5Zn5Pb5
51
Shaft
Stainless steel DIN W.-Nr. 1.4021/AISI 420
53
Ball bearing
SKF - FAG - NSK
54
Ball bearing
SKF - FAG - NSK
Washer
Stainless steel DIN W.-Nr. 1.4305/AISI 303
66a
Spring washer
Stainless steel 1.4310
67
Nut
Stainless steel DIN W.-Nr. 1.4301/AISI 304
72a
O-ring
O-ring, EPDM or FKM
77
Cover
EN-GJL-250
6
66
86
Bearing bracket
EN-GJL-250
105
Mechanical shaft seal
Burgmann mechanical seals
159f
Retaining ring
17
Construction
Fire NKF
TM01 3279 0203
Sectional drawing, NKF, model A
Fig. 10 Sectional drawing, NKF 200-500
Material specification Pos.
Component
1111
Pump housing
1222 Seal box 1510 Wear ring
Material specification EN-GJL-250
Component
Material specification
Bearing housing
EN-GJL-250
3120
Ball bearing
3121
Ball bearing
3131
Ball bearing
Stainless steel DIN W.-Nr. 1.4301/AISI 304
4200
Rotary seal ring
2002 Spacer ring
Stainless steel DIN W.-Nr. 1.4021/AISI 420
4201
Stationary seat
2110
Stainless steel DIN W.-Nr. 1.4021/AISI 420
4213
Cover for seal
EN-GJL-250
2200 Impeller
G-CuSn5Zn5Pb5
4522
Gasket for cover
Asbestos free gaskets DIN FA 3535 and FKM
2450 Shaft sleeve
Stainless steel DIN W.-Nr. 1.4021/AISI 420
4596
Gasket for pump
Asbestos free gaskets DIN FA 3535 and FKM
1520 Wear ring 1850
Impeller counter nut
Shaft
G-CuPb10Sn
2540 Thrower
6511
Priming plug
2542 Thrower
6515
Drain plug
6521
Pressure tapping plug
6710
Impeller key
2911
Impeller washer
Stainless steel DIN W.-Nr. 1.4021/AISI 420
2912 Impeller nut 2915 Lock nut
18
Pos. 3110
Stainless steel DIN W.-Nr. 1.4301/AISI 304
SKF - FAG - RHP - NSK
Burgmann mechanical seals
DIN W.-Nr. 1.0037
DIN W.-Nr. 1.1181
Construction
Fire NKF
Pump housing The cast iron volute pump housing has axial suction port and radial discharge port. Flange dimensions are according to EN 1092-2.
The drawings below illustrate shaft seals for NKF, model A.
TM03 0232 4504
The pump housings have both a priming and a drain hole closed by plugs.
Shaft seal The shaft seal is an unbalanced, mechanical shaft seal with dimensions to EN 12 756. Seal faces are available in a variety of combinations. The code of the standard version is BAQE, see page 16.
TM02 6022 4802
Mechanical construction
Fig. 13 Rubber bellows seal type BAQE counteracts deposits from the pumped water
Fig. 11 NKF pump housing
Bearing bracket and shaft The bearing bracket has two sturdy, antifriction, lubricated-for-life bearings. However, oversize pumps with 55 mm shaft diameter have open bearings with lubricating nipples.
Coupling NKF pumps are available with two types of coupling: • standard • spacer.
The bearing bracket is made of cast iron, EN-GJL-250.
TM03 0235 4504
The shaft is made of stainless steel, DIN W.-Nr. 1.4021/ AISI 420. Shaft diameter d5 is either ∅24, 32 or 55. A thrower on the shaft prevents water from entering the bearing bracket.
TM03 0234 4504
TM03 0233 4504
Fig. 14 Standard coupling
Fig. 12 Bearing bracket and shaft
All NKF pumps are fitted with one of four shaft, shaft seal and bearing sizes.
Fig. 15 Spacer coupling
Pumps fitted with a spacer coupling can be serviced without dismantling the motor from the base frame and without removing the pump housing from the pipework. This saves realignment of pump and motor after service.
19
Construction
Fire NKF
TM03 0231 4504
Impeller The closed impeller is made of bronze and has doublecurved blades with smooth surfaces for high efficiency.
NKF, model A All stationary cast iron parts are dip-painted with waterbased, ether-epoxy, no-lead paint (NCS 9000/ RAL 9005). The thickness of the film is 25 μm ± 5 μm. The product is also spray-painted with black waterbased, ether-epoxy, no-lead paint and finally with red two-component paint, Ral 3000. The thickness of the dry coating is 35 μm ± 5 μm.
Test pressure Pressure testing has been made with +20 °C water containing corrosion inhibitor.
Fig. 16 Impeller for an NKF pump
All impellers are dynamically and hydraulically balanced. The hydraulical balancing compensates for axial thrust. The direction of rotation of the impeller is clockwise when viewed from the motor.
Pressure stage
Operating pressure
Test pressure
bar
MPa
bar
MPa
PN 10
10
1.0
15
1.5
PN 16
16
1.6
24
2.4
Motor
All impellers are adapted to the duty point required by the customer. Base frame Pump and motor are mounted on a common, steel base frame.
The motor is a totally enclosed, fan-cooled, standard motor with main dimensions according to IEC and DIN standards. The tables below show the motors available for NKF. Standard motor range Standard range Output P2 [kW]
2-pole
4-pole
11.0 15.0
• • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • •• • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • •
TM03 0199 0203
18.5 22.0 30.0 37.0
MMG model E
45.0 55.0
Fig. 17 Schematic view of NKF pump-motor unit mounted on a base frame
75.0 90.0 132.0
Surface treatment
MMG model E
160.0 200.0
NKF, model B The cast iron parts of NKF pumps are electrocoated. The electrocoating process includes: 1. Alkaline cleaning. 2. Pre-treatment with zinc phosphate coating. 3. Cathodic electrocoating (epoxy). 4. Curing of paint film at 200-250 °C. The colour code is NCS 9000/RAL 9005. 5. Final spray-painting with red two-component paint, RAL 3000.
20
250.0
Grey squares = These motors are not in use.
Operating conditions
Fire NKF
Pump unit location
Inlet pressure
The pump is designed for installation in a nonaggressive and non-explosive atmosphere.
Maximum inlet pressure
The relative air humidity must not exceed 95 %.
The inlet pressure is limited by the maximum operating pressure. The maximum inlet pressure appears from this table:
Ambient temperature and altitude The ambient temperature must not exceed +40 °C.
Inlet pressure
If the ambient temperature exceeds +40 °C or if the motor is installed more than 1000 metres above sea level, the rated motor output will fall due to the low density and consequently low cooling effect of the air. In such cases, it may be necessary to use an oversize motor with a higher output. See fig. 18.
Max. 9 bar. Max. 7 bar for impellers of 400 mm and up.
Minimum inlet pressure The minimum inlet pressure must be according to the NPSH curve + a safety margin of at least 1 metre + correction for vapour pressure, according to VdS CEA 4001 : 2005-09 (02). See fig. 19.
P2 [%] 100 90
60 50 20 25 30 35 40 45 50 55 60 65 70 75 80 t [°C] 1000
2250
3500
m
TM00 2189 1598
70
TM03 2957 4905
80
Fig. 19 Schematic view of open system with NKF pump Fig. 18 The motor P2 depends on temperature/altitude
Duty range of shaft seal The NKF pump is equipped with a BAQE shaft seal, i.e. a rubber bellows seal with metal-impregnated carbon/ silicon carbide seal faces and EPDM rubber parts. Temperature range: 0 °C to +120 °C.
21
Installation and operation
Fire NKF
Piping
Alignment
When installing the pipes, make sure that the pump housing is not stressed by the pipework.
In a complete pump unit assembled and supplied from factory, the coupling halves have been accurately aligned. Alignment is made by inserting shims under the pump and motor mounting surfaces as required.
The suction and discharge pipes must be of an adequate size, taking the pump inlet pressure into account. Install the pipes so that air locks are avoided, especially on the suction side of the pump. see fig. 20.
The pump/motor alignment may be affected during transport. Always check alignment after the pump has been installed. If misalignment has occurred due to radial or angular shifting, realign by inserting/removing shims under the feet of the pump or the motor.
TM00 2263 3393
Take care to align carefully as this will increase the working lives of the coupling, bearings and shaft seals considerably.
Fig. 20 Pipe sections
Fit isolating valves on either side of the pump to avoid having to drain the system if the pump needs to be cleaned or repaired.
TM03 2998 5005
Make sure the pipes are adequately supported as close to the pump as possible, both on the suction and the discharge side. The counter flanges should lie true against the pump flanges without being stressed; otherwise, the pump will be damaged.
Fig. 21 Example of piping, Fire NKF
22
Note: Check the final alignment when the pump has obtained its operating temperature under normal operating conditions.
Motor data
Fire NKF
GR7350
The tables below show technical data on 2- and 4-pole motors for NKF pumps.
Fig. 22 MMG motor, model E
Motor range, 2-pole P2 [kW]
I1/1 [A]
η [%]
Cos ϕ 1/1
n [min-1]
I Start
MMG 160 MA-E
11
19.6/11.4
88.4
0.90
2930
6.6
115
MMG 160 MB-E
15
26.5/15.4
89.4
0.90
2940
6.5
123
MMG 160 L-E
18.5
33.0/19.2
90.0
0.90
2940
7.2
146
MMG 180 M-E
22
39.0/22.6
90.5
0.90
2940
7.4
183
30
53.5/31.0
91.4
0.88
2950
7.2
248
Frame size
MMG 200 LA-E MMG 200 LB-E
Voltage
3 x 380-415 Δ/ 660-690 Y
------------I
1⁄ 1
Weight [kg]
37
64.5/37.5
92.0
0.89
2950
7.9
270
MMG 225 M-E
45
78.0/45.0
92.5
0.89
2970
7.9
346
MMG 250 M-E
55
94.5/55.0
93.0
0.90
2960
6.2
462
MMG 280 S-E
75
128/74.0
96.6
0.88
2980
6.6
525
MMG 280 M-E
90
160/92.5
93.9
0.89
2980
7.2
590
P2 [kW]
I1/1 [A]
η [%]
Cos ϕ 1/1
n [min-1]
I Start
Weight [kg]
MMG 225 M-E
45
78.5/45.5
92.5
0.88
1480
I1 ⁄ 1 7.98
MMG 250 M-E
55
94.5/54.5
93.0
0.89
1480
7.5
470
MMG 280 S-E
75
126/73.0
93.6
0.90
1480
7.4
554
MMG 280 M-E
90
152/88.0
93.9
0.91
1480
6.88
600
110
192/110
94.5
0.88
1490
6.25
965
Motor range, 4-pole Frame size
MMG 315 S-E
Voltage
3 x 380-415 Δ/ 660-690 Y
-------------
350
MMG 315 M-E
132
226/130
94.8
0.89
1490
6.8
1120
MMG 315 LA-E
160
270/156
94.9
0.89
1480
5.91
1200
MMG 315 LB-E
200
340/196
95.0
0.89
1480
5.57
1295
MMG 355 M-E
250
415/240
95.3
0.91
1490
6.36
1650
23
Bare shaft pumps
Fire NKF
NKF, model B x
f
a
M
DNd
DNs
n
d5
h2
l
c
h1
t
s2
b
m2
M
n3
m1
n2 n1
E
Drain plug
M
Pressure gauge connection Pump [mm]
Type
a
f
h1
h2 M, E
b
m1 m2 n1
n2
w
S1
Shaft [mm] S2
c
d5
l
x
t
n
Pump moments of inertia [kgm 2]
Weight [kg]
NKF 50-200
65
50
100 360
16 200 3/8" 0
50 100 70 265 212 260 M12 M12 18
24
50
100 27
8
0.206
56
NKF 65-200
80
65
100 360 180 225 3/8"
65 125 95 320 250 260 M12 M12 19
24
50
140 27
8
0.260
55
NKF 80-200 NKF 80-250 NKF 150-400 NKF 150-500
24
DNs DNd
Supporting feet [mm]
TM03 8134 0607
s1
w
100
80
200
150
125 470
180 250 200 280
160 530 315 450 180 670 400 500
3/8" 1/2"
65 125 95 345 280 80 160 120 400 315 100 125
200 150
340
550 450 370 625 500 500
M12 M16 M20
M12
19 23
32
M12 28
42
M16 43
60
80 110
140 35 10
0.401
73
0.724
93
140 45 12
0.835
286
180 64 18
1.504
522
Bare shaft pumps
Fire NKF
NKF, model A a
x
f
DNd
A
M
G 1/2
l
G 1/4
DNs
n
d5
h2
20 300
t
h1
V
c
G 1/4
E
280
s2
330
s1
300
G 1/4 250-500 G 3/8
TM03 8135 0607
b
w m2
//
// m1
n2 n1
A
Priming plug
E
Drain plug
M
Pressure gauge connection
V
Pressure/vacuum gauge connection
Pump [mm] Type
NKF 200-500
DNs DNd 250
a
f
Supporting feet [mm] h1
h2
200 250 750 410 675
b
c
m1
m2
n1
n2
s1 s2
Shaft [mm] w
140 22 250 190 790 660 28 24 536
d5
l
t
n
x
55 140 59 16 180
Pump moments of inertia [kgm2]
Weight [kg]
14.3
480
25
Bare shaft pumps
Fire NKF
Oversize pumps EN 733 describes only the standard types. The NKF range includes bigger models (oversize pumps) for higher flow rates and heads. As oversize pumps are not according to the standard, dimensions of Grundfos NKF oversize pumps may differ from the dimensions of similar pumps from other suppliers.
Flange dimensions The flange dimensions are in mm. EN 1092-2 - PN 10/16
D1
26
TM02 7720 3803
S D2 D3
EN 1092-2 - PN 10
Nominal diameter (DN) 50
65
80
100
150
200
D1
50
65
80
100
150
200
250 250
D2
125
145
160
180
240
295
350
D3
165
185
200
220
285
340
395
S
4 x 19
4 x 19
8 x 19
8 x 19
8 x 23
8 x 23
12 x 23
Curve charts
Fire NKF
How to read the curve charts QH curve for the individual pump
Size of impeller
Qzul indicates the limit of the individual pump performance range according to VdS
H [m]
NKF 80-200
70
Pump type and frequency of motor
2-pole, 50 Hz ISO 9906 Annex A
65
55 kW
ø213
60
45 kW ø202
55 37 kW 50
ø188
45 30 kW 40
35
30
25
20
15 0
0
20
40
500
60
1000
80
100
1500
120
2000
140
160
2500
180
3000
200
220
3500
240
4000
260
280
4500
300
320 Q
5000
[m³/h] The power curve indicates pump input power [P2]
Q [l/min]
P2 [kW] ø222
50
ø213 40
20
ø202 ø188
30
NPSH [m]
15
20
10 ø188 (Min. NPSH)
ø222 (Max. NPSH)
10
5
0
0 0
20
40
60
80
100
120
140
160
180
200
220
240
260
280
300
320 Q
[m³/h]
The NPSH curves are according to the minimum and maximum impeller diameter TM03 1667
Total pump head H = Htotal
ø222
27
Curve charts
Fire NKF
Curve conditions
Performance tests
Selection of pumps
The requested duty point for every pump is tested according to ISO 9906, Annex A, and VdS 2100.
The guidelines below apply to the curves shown in the performance charts, pages 29 to 35. • Tolerances according to ISO 9906, Annex A and VdS 2100. • The curves show pump performance with different impeller diameters at the nominal speed. • The bold part of the curves shows the recommended operating range.
If the customer requires a specific impeller diameter (not a specific duty point), the pump will be tested at a duty point which is 2/3 of the maximum flow of the published performance curve related to the ordered impeller diameter (according to ISO 9906, Annex A). If the customer requires either more points on the curve to be checked or certain minimum performances or certificates, individual measurements must be made.
• The thin parts are not allowed according to VdS. • Do not use the pumps at minimum flows below 0.1 x Q at optimum efficiency because of the danger of overheating of the pump. • The curves apply to the pumping of water at a temperature of +20 °C and a kinematic viscosity of 1 mm2/s (1 cSt). • NPSH: The curves are according to the minimum and maximum impeller diameter. • In case of other densities than 1000 kg/m3 the discharge pressure is proportional to the density. • When pumping water with a density higher than 1000 kg/m3, motors with correspondingly higher outputs must be used.
Calculation of total head The total pump head consists of the height difference between the measuring points + the differential head + the dynamic head. H
total
= H
geo
+H
stat
+H
dyn
Hgeo: Height difference between measuring points. Hstat: Differential head between the suction and the discharge side of the pump. Hdyn: Calculated values based on the velocity of the pumped water on the suction and the discharge side of the pump.
28
VdS certificate The pump order includes a test certificate confirming the required QH performance.
Performance curves
NKF 50-200 2-pole
NKF 50-200, 2-pole H [m]
NKF 50-200
68
2-pole, 50 Hz 64
ISO 9906 Annex A
ø219
60 22 kW
ø207
56 52
18,5 kW
ø194 48 44
15 kW 40
ø170
36 11 kW
32 28 24 20 16 12 8 4 0
10
20
0
30
40
50
500
60
70
80
1000
90
100
110
1500
120
130
2000
Q [m³/h] Q [l/min]
P2 [kW] 24 ø219 20
NPSH [m] 20
ø207 16
16
ø194
12
12
ø170
8
ø219 (Max. NPSH)
4
4
ø170 (Min. NPSH) 0
0 0
10
20
30
40
50
60
70
80
90
100
110
120
130
Q [m³/h]
TM03 1780 3105
8
Circulation flow 2 % of rated flow. NKF 50-200 > ∅207 ≤∅219
22 kW
> ∅194 ≤∅207
18.5 kW
2940 rpm
> ∅170 ≤∅194
15 kW
2940 rpm
= ∅170
11 kW
2930 rpm
2950 rpm
29
Performance curves
NKF 65-200 2-pole
NKF 65-200, 2-pole H [m]
NKF 65-200
68
2-pole, 50 Hz
37 kW
ø219
64
ISO 9906 Annex A
ø215 60 30 kW 56 ø195
52
ø185
48
22 kW
44
18,5 kW ø170
40 36
15 kW
32 28 24 20 16 12 8 4 0
20
0
40
500
60
80
1000
100
1500
120
140
2000
160
2500
180
200
3000
Q [m³/h] 3500
P2 [kW]
Q [l/min]
ø219 ø215
30
25
NPSH [m] 20
ø195 ø185
20
15
16
12
ø170 ø219 (Max. NPSH)
8
5
4
ø170 (Min. NPSH)
0
0 0
20
40
60
Circulation flow 2 % of rated flow. NKF 65-200
30
> ∅215 ≤∅219
37 kW
> ∅195 ≤∅215
30 kW
2960 rpm
> ∅185 ≤∅195
22 kW
2950 rpm
2960 rpm
> ∅170 ≤∅185
18.5 kW
2940 rpm
= ∅170
15 kW
2940 rpm
80
100
120
140
160
180
200
Q [m³/h]
TM03 1437 4105
10
Performance curves
NKF 80-200 2-pole
NKF 80-200, 2-pole H [m]
NKF 80-200
70
2-pole, 50 Hz
ø222
ISO 9906 Annex A 65
55 kW
ø213
60
45 kW ø202
55 37 kW 50
ø188
45 30 kW 40
35
30
25
20
15 0
20
0
40
500
60
1000
80
100
1500
120
2000
140
160
2500
180
3000
200
220
3500
240
4000
260
280
4500
300
320 Q
5000
[m³/h]
Q [l/min]
P2 [kW] ø222
50
ø213 40
20
ø202 ø188
30
NPSH [m]
15
20
10 ø188 (Min. NPSH)
5
0
0 0
20
40
60
80
100
120
140
160
180
200
220
240
260
280
300
320 Q
[m³/h]
TM03 1667 4405
ø222 (Max. NPSH)
10
Circulation flow 2 % of rated flow. NKF 80-200 > ∅213 ≤∅222
55 kW
> ∅202 ≤∅213
45 kW
2980 rpm
> ∅188 ≤∅202
37 kW
2960 rpm
= ∅188
30 kW
2960 rpm
2960 rpm
31
Performance curves
NKF 80-250 2-pole
NKF 80-250, 2-pole H [m]
NKF 80-250 2-pole, 50 Hz
110 ø270
ISO 9906 Annex A
100 90 kW ø255 90 75 kW 80
ø233
55 kW
70 ø216
60
45 kW
50
40
30
20
10 0
40
0
80
1000
120
160
2000
200
3000
240
280
4000
320
5000
360
Q [m³/h]
6000
Q [l/min]
P2 [kW] 100 ø270 80
20
ø255 ø233
60
NPSH [m]
15
ø216 40
10
20
5
ø216 (Min. NPSH)
0
0 0
40
80
Circulation flow 2 % of rated flow. NKF 80-250
32
> ∅255 ≤∅270
90 kW
> ∅233 ≤∅255
75 kW
2970 rpm
> ∅218 ≤∅233
55 kW
2960 rpm
= ∅218
45 kW
2980 rpm
2980 rpm
120
160
200
240
280
320
360
Q [m³/h]
TM03 2217 3905
ø270 (Max. NPSH)
Performance curves
NKF 150-400 4-pole
NKF 150-400, 4-pole H [m]
NKF 150-400
65
4-pole, 50 Hz ø410
ISO 9906 Annex A
60 110 kW 55
ø389 90 kW
50
ø368 75 kW
45
40
ø335
35
ø318
55 kW
45 kW
30
25
20
15
10
5
0 0
0
100
200
2000
300
4000
400
6000
500
8000
600
700
10000
Q [m³/h] Q [l/min]
P2 [kW] 120 ø410
100
NPSH [m]
ø389 80
20 ø368
60
15 ø335 10
ø318
20
ø318 (Min. NPSH)
ø410 (Max. NPSH)
0
5
0 0
100
200
300
400
500
600
700
Q [m³/h]
TM03 5478 4106
40
Circulation flow 2 % of rated flow. NKF 150-400 > ∅389 ≤∅410
110 kW
> ∅368 ≤∅389
90 kW
1480 rpm
> ∅335 ≤∅368
75 kW
1480 rpm
> ∅318 ≤∅335
55 kW
1480 rpm
> ∅318
45 kW
1480 rpm
1490 rpm
33
Performance curves
NKF 150-500 4-pole
NKF 150-500, 4-pole H [m]
NKF 150-500
120
4-pole, 50 Hz ISO 9906 Annex A
110
/538 250 kW
100
/518 200 kW
90 /476 80
160 kW /441
70
132 kW /415
60
110 kW
50
40
30
20
10
0 0
0
100
200
2000
300
4000
400
6000
500
8000
600
700
10000
800 Q
12000
Q [l/min]
P2 [kW] 240
[m³/h]
/538 /518
200
160
/476 /441
NPSH [m]
/415
80
/415 (Min. NPSH)
/538 (Max. NPSH)
40
10
0
0 0
100
200
Circulation flow 2 % of rated flow. NKF 150-500
34
20
> ∅518 ≤∅538
250 kW
1490 rpm
> ∅476 ≤∅518
200 kW
1480 rpm
> ∅441 ≤∅476
160 kW
1480 rpm
> ∅415 ≤∅441
132 kW
1480 rpm
> ∅415
110 kW
1480 rpm
300
400
500
600
700
800 Q
[m³/h]
TM03 8058 0307
120
Performance curves
NKF 200-500 4-pole
NKF 200-500, 4-pole H [m]
NKF 200-500
110
4-pole, 50 Hz
ø530
ISO 9906 Annex A ø512
100
250 kW
90
200 kW ø471
80 160 kW
ø446 70
132 kW 60
50
40
30
20
10
0 0
100
0
200
2000
300
4000
400
6000
500
8000
600
10000
700
800
12000
Q [m³/h]
14000
Q [l/min]
P2 [kW] 250 ø530 ø512 200
NPSH [m] 20
ø471 150
15
ø446
10 ø530 (Max. NPSH)
ø446 (Min. NPSH)
50
5
0
0 0
100
200
300
400
500
600
700
800
Q [m³/h]
TM03 2499 4405
100
Circulation flow 2 % of rated flow. NKF200-500 > ∅512 ≤∅530
250 kW
> ∅471 ≤∅512
200 kW
1490 rpm
> ∅446 ≤∅471
160 kW
1490 rpm
= ∅446
132 kW
1490 rpm
1490 rpm
35
Technical data
Fire NKF 50-200 2-pole
Installation dimensions
TM03 2929 4905
Fire NKF 50-200, basic unit
With MMG-E motor, 2-pole Fire NKF 50-200 kW Motor range
15
18.5
22
MMG160MA-E
MMG160MB-E
MMG160ML-E
MMG180M-E
PN
[bar]
16
16
16
16
DNd
[mm]
50
50
50
50
DNs
[mm]
65
65
65
65
a
[mm]
100
100
100
100
a1
[mm]
150
150
150
150
a2
[mm]
60
60
60
60
a3
[mm]
300
300
300
300
h
[mm]
100
100
100
100
h2
[mm]
200
200
200
200
h3
[mm]
260
260
260
280
L
[mm]
1072
1072
1116
1154
L1
[mm]
1200
1200
1200
1200
L2
[mm]
750
750
750
750
b2
[mm]
790
790
790
790
b3
[mm]
740
740
740
740
d
[mm]
13
13
13
13
223
231
254
292
Net weight [kg]
36
11
Technical data
Fire NKF 50-200 2-pole
TM03 2930 4905
Fire NKF 50-200, compact unit
With MMG-E motor, 2-pole Fire NKF 50-200 kW Motor range
11
15
18.5
22
MMG160MA-E
MMG160MB-E
MMG160ML-E
MMG180M-E
PN
[bar]
16
16
16
16
DNd
[mm]
50
50
50
50
DNs
[mm]
65
65
65
65
a
[mm]
100
100
100
100
a1
[mm]
150
150
150
150
a2
[mm]
60
60
60
60
a3
[mm]
300
300
300
300
h
[mm]
100
100
100
100
h2
[mm]
200
200
200
200
h3
[mm]
260
260
260
280
h4
[mm]
1500
1500
1500
1500
L
[mm]
1072
1072
1116
1154
L1
[mm]
1200
1200
1200
1200
L2
[mm]
750
750
750
750
b2
[mm]
790
790
790
790
b3
[mm]
740
740
740
740
b4
[mm]
806
806
806
806
d
[mm]
13
13
13
13
270
278
301
339
Net weight [kg]
37
Technical data
Fire NKF 65-200 2-pole
Installation dimensions
TM03 2929 4905
Fire NKF 65-200, basic unit
With MMG-E motor, 2-pole Fire NKF 65-200 kW Motor range
18.5
22
30
MMG160MB-E
MMG160L-E
MMG180M-E
MMG200LA-E
PN
[bar]
16
16
16
16
DNd
[mm]
65
65
65
65
DNs
[mm]
80
80
80
80
a
[mm]
100
100
100
100
a1
[mm]
150
150
150
150
a2
[mm]
75
75
75
75
a3
[mm]
300
300
300
300
h
[mm]
100
100
100
100
h2
[mm]
225
225
225
225
h3
[mm]
280
280
280
300
L
[mm]
1072
1116
1154
1221
L1
[mm]
120
1200
1200
1200
L2
[mm]
750
750
750
750
b2
[mm]
790
790
790
790
b3
[mm]
740
740
740
740
d
[mm]
13
13
13
13
257
265
303
390
Net weight [kg]
38
15
Technical data
Fire NKF 65-200 2-pole
TM03 2930 4905
Fire NKF 65-200, compact unit
With MMG-E motor, 2-pole Fire NKF 65-200 kW Motor range
15
18.5
22
30
MMG160MB-E
MMG160L-E
MMG180M-E
MMG200LA-E
PN
[bar]
16
16
16
16
DNd
[mm]
65
65
65
65
DNs
[mm]
80
80
80
80
a
[mm]
100
100
100
100
a1
[mm]
150
150
150
150
a2
[mm]
75
75
75
75
a3
[mm]
300
300
300
300
h
[mm]
100
100
100
100
h2
[mm]
225
225
225
225
h3
[mm]
280
280
280
300
h4
[mm]
150
1500
1500
1500
L
[mm]
1072
1116
1154
1221
L1
[mm]
1200
1200
1200
1200
L2
[mm]
750
750
750
750
b2
[mm]
790
790
790
790
b3
[mm]
740
740
740
740
b4
[mm]
806
806
806
806
d
[mm]
13
13
13
13
303
312
350
451
Net weight [kg]
39
Technical data
Fire NKF 80-200 2-pole
Installation dimensions
TM03 2929 4905
Fire NKF 80-200, basic unit
With MMG-E motor, 2-pole Fire NKF 80-200 kW Motor range
37
45
55
MMG200LA-E
MMG200LB-E
MMG225M-E
MMG250M-E
PN
[bar]
16
16
16
16
DNd
[mm]
80
80
80
80
DNs
[mm]
100
100
100
100
a
[mm]
125
125
125
125
a1
[mm]
150
150
150
150
a2
[mm]
75
75
75
80
a3
[mm]
300
300
300
300
h
[mm]
100
100
100
100
h2
[mm]
250
250
250
250
h3
[mm]
300
300
325
350
L
[mm]
1356
1356
1406
1509
L1
[mm]
1500
1500
1500
1500
L2
[mm]
1050
1050
1050
1050
b2
[mm]
790
790
790
790
b3
[mm]
740
740
740
740
d
[mm]
13
13
13
13
408
430
506
641
Net weight [kg]
40
30
Technical data
Fire NKF 80-200 2-pole
TM03 2930 4905
Fire NKF 80-200, compact unit
With MMG-E motor, 2-pole Fire NKF 80-200 kW Motor range
30
37
45
55
MMG200LA-E
MMG200LB-E
MMG225M-E
MMG250M-E
PN
[bar]
16
16
16
16
DNd
[mm]
80
80
80
80
DNs
[mm]
100
100
100
100
a
[mm]
125
125
125
125
a1
[mm]
150
150
150
150
a2
[mm]
75
75
75
80
a3
[mm]
300
300
300
300
h
[mm]
100
100
100
100
h2
[mm]
250
250
250
250
h3
[mm]
300
300
325
350
h4
[mm]
1500
1500
2040
2040
L
[mm]
1356
1356
1406
1509
L1
[mm]
1500
1500
1500
1500
L2
[mm]
1050
1050
1050
1050
b2
[mm]
790
790
790
790
b3
[mm]
740
740
740
740
b4
[mm]
806
806
806
806
d
[mm]
13
13
13
13
469
491
580
715
Net weight [kg]
41
Technical data
Fire NKF 80-250 2-pole
Installation dimensions
TM03 2929 4905
Fire NKF 80-250, basic unit
With MMG-E motor, 2-pole Fire NKF 80-250 kW Motor range
55
75
90
MMG225M-E
MMG250M-E
MMG280S-E
MMG280M-E
PN
[bar]
16
16
16
16
DNd
[mm]
80
80
80
80
DNs
[mm]
100
100
100
100
a
[mm]
125
125
125
125
a1
[mm]
150
150
150
150
a2
[mm]
90
90
90
90
a3
[mm]
300
300
300
300
h
[mm]
100
100
100
100
h2
[mm]
280
280
280
280
h3
[mm]
325
350
380
380
L
[mm]
1406
1509
1543
1594
L1
[mm]
1500
1500
1600
1600
L2
[mm]
1050
1050
1150
1150
b2
[mm]
790
790
790
790
b3
[mm]
740
740
740
740
d
[mm]
13
13
13
13
526
661
749
814
Net weight [kg]
42
45
Technical data
Fire NKF 80-250 2-pole
TM03 2930 4905
Fire NKF 80-250, compact unit
With MMG-E motor, 2-pole Fire NKF 80-250 kW Motor range
45
55
75
90
MMG225M-E
MMG250M-E
MMG280S-E
MMG280M-E
PN
[bar]
16
16
16
16
DNd
[mm]
80
80
80
80
DNs
[mm]
100
100
100
100
a
[mm]
125
125
125
125
a1
[mm]
150
150
150
150
a2
[mm]
90
90
90
90
a3
[mm]
300
300
300
300
h
[mm]
100
100
100
100
h2
[mm]
280
280
280
280
h3
[mm]
325
350
380
380
h4
[mm]
2040
2040
2100
2100
L
[mm]
1406
1509
1543
1594
L1
[mm]
1500
1500
1600
1600
L2
[mm]
1050
1050
1150
1150
b2
[mm]
790
790
1000
1000
b3
[mm]
740
740
950
950
b4
[mm]
806
806
1006
1006
d
[mm]
Net weight [kg]
13
13
13
13
600
735
847
912
43
Technical data
Fire NKF 150-400 4-pole
Installation dimensions
TM03 8648 2107
Fire NKF 150-400, basic unit
With MMG-E motor, 4-pole Fire NKF 150-400 kW Motor range
55
75
90
110
MMG225M-E
MMG250M-E
MMG280S-E
MMG280M-E
MMG315S-E
PN
[bar]
10
10
10
10
10
DNd
[mm]
150
150
150
150
150
DNs
[mm]
200
200
200
200
200
a
[mm]
160
160
160
160
160
a1
[mm]
150
150
150
150
150
a2
[mm]
125
125
125
125
125
h
[mm]
200
200
200
200
200
h2
[mm]
450
450
450
450
450
h3
[mm]
425
450
480
480
515
L
[mm]
1532
1605
1638
1689
1899
L1
[mm]
1500
1600
1600
1650
1900
L2
[mm]
1200
1300
1300
1350
1600
b2
[mm]
1000
1000
1000
1000
1000
b3
[mm]
925
925
925
925
925
d
[mm]
22
22
22
22
22
874
1003
1095
1146
1532
Net weight [kg]
44
45
Technical data
Fire NKF 150-400 4-pole
TM03 8647 2107
Fire NKF 150-400, compact unit
With MMG-E motor, 2-pole Fire NKF 150-400 kW Motor range
45
55
75
90
MMG225M-E
MMG250M-E
MMG280S-E
MMG280M-E
PN
[bar]
10
10
10
10
DNd
[mm]
150
150
150
150
DNs
[mm]
200
200
200
200
a
[mm]
160
160
160
160
a1
[mm]
150
150
150
150
a2
[mm]
125
125
125
125
h
[mm]
200
200
200
200
h2
[mm]
450
450
450
450
h3
[mm]
425
450
480
480
h4
[mm]
2200
2200
2200
2200
L
[mm]
1532
1605
1638
1689
L1
[mm]
1500
1600
1600
1650
L2
[mm]
1200
1300
1300
1350
b2
[mm]
1000
1000
1000
1000
b3
[mm]
925
925
925
925
b4
[mm]
806
806
1006
1006
d
[mm]
22
22
22
22
944
1073
1176
1227
Net weight [kg]
45
Technical data
Fire NKF 150-500 4-pole
Installation dimensions
TM03 8648 2107
Fire NKF 150-500, basic unit
With MMG-E motor, 4-pole Fire NKF 150-500 kW Motor range
132
160
200
250
MMG315S-E
MMG315M-E
MMG315LA-E
MMG315LB-E
MMG355M-E
PN
[bar]
10
10
10
10
10
DNd
[mm]
150
150
150
150
150
DNs
[mm]
200
200
200
200
200
a
[mm]
180
180
180
180
180
a1
[mm]
150
150
150
150
150
a2
[mm]
125
125
125
125
125
h
[mm]
200
200
200
200
200
h2
[mm]
500
500
500
500
500
h3
[mm]
515
515
515
515
555
L
[mm]
2059
2172
2172
2172
2371
L1
[mm]
2000
2150
2150
2150
2350
L2
[mm]
1700
1850
1850
1850
2050
b2
[mm]
1000
1000
1000
1000
1000
b3
[mm]
925
925
925
925
925
d
[mm]
Net weight [kg]
46
110
200
200
200
200
200
1689
1854
1938
2038
2420
Technical data
Fire NKF 200-500 4-pole
Installation dimensions
TM03 2956 4905
Fire NKF 200-500, basic unit
With MMG-E motor, 4-pole Fire NKF 200-500 kW Motor range
132
160
200
250
MMG225M-E
MMG250M-E
MMG280S-E
MMG280M-E
PN
[bar]
10
10
10
10
DNd
[mm]
200
200
200
200
DNs
[mm]
250
250
250
250
a
[mm]
250
250
250
250
a1
[mm]
150
150
150
150
a2
[mm]
125
125
125
125
h
[mm]
200
200
200
200
h2
[mm]
675
675
675
675
h3
[mm]
515
515
515
555
L
[mm]
2321
2321
2321
2520
L1
[mm]
2200
2200
2200
2400
L2
[mm]
1900
1900
1900
2100
b2
[mm]
1000
1000
1000
1000
b3
[mm]
925
925
925
925
d
[mm]
22
22
22
22
1792
1872
1967
2322
Net weight [kg]
47
Controller General description The Grundfos CONTROL FS 1 fire system controller is a complete, factory-assembled controller in a steel plate cabinet, suitable for wall mounting or freestanding.
Fire NKF
Identification Type key, standard operating devices Example:
CONTROL
FS 1x
The controller has been designed without main switches to comply with the regulations of the VdS (Loss Prevention Authority).
Fire system
If a fire pump can be powered by more than one electricity supply network, a controller with a load transfer breaker must be installed.
Monitoring WM = with monitoring module WO/M = without monitoring module
The control of the fire pump has been arranged in such a way that motor failures, for example due to heating, do not cause the fire pump to stop, but only in fault indications and/or a potential-free signal to a superordinate fault centre. In addition to the fire pump, ancillary VdS-approved equipment can also be controlled.
Controller versions The controller is available in two versions: • With monitoring module (WM) • Without monitoring module (WO/M). Controller with monitoring module Monitoring modules for power system monitoring as well as for pressure switch wire-breakage and/or shortcircuit monitoring are integrated into the WM version of the controller. It is essential that a corresponding resistance module, WM1, is attached to each pressure switch for this purpose. Controller without monitoring module Without the monitoring modules integrated in this version, no potential-free signals are given in case of phase or pressure-switch failure.
WM
Number of motors Motor rating
The example above is a controller for a fire fighting pump in the range of 133 to 160 kW. The controller has monitoring modules for phase-failure, cable breakage and short circuit. Type key, optional operating devices Example:
OPTION
CONTROL
System Type FS: Fire System Devices 1.1A: Jockey pump (1.5 kW) 1.1B: Jockey pump (2.2 kW) 1.1C: Jockey pump (3.0-4.0 kW) 1.2: Compressor (2.2-3.0 kW) 2: Pressure-maintaining pump (3.0 kW) 3.1: Level indication, rod electrode 3.2: Level indication, float switch 4: Motor valve 5.1: Fused supply (400 V) 5.2: Fused supply (230 V)
Nameplate The nameplate made of sheet metal is riveted to the front door of the control cabinet. The nameplate is positioned at the bottom right of the door.
Type:
FS 1x133-160kW WOM
Product No.
96158772
Serial No.
123456789
Main Supply: Pump input power: Pump rated current: VdS No.:
3X400V 133/160 kW 240/280 A
Made in Germany P1
Frequency: 50 Hz Enclouse class: IP54
BMA/06&0103/A 0631
Fig. 23 Example of CONTROL FS 1 nameplate
48
FS 1.1C
Optional operating devices
TM03 8081 0407
Functional description The starting signal for the fire pump is given via two redundant pressure switches. The fire pump can only be switched off manually.
133-160kW
System
Controller
Fire NKF
Construction
H3 H4
Blue
Fig. 24 CONTROL FS 1 control panel
Voltmeter with phase-reversing switch.
S2
Pump on.
S3
Pump off.
S4
Horn off.
S5
Indicator light test.
Pump is operating normally.
Blue
Pump is manually switched off.
Yellow
Switch
White
H6
Button
Indicator light
H5 H7
Description
Fault. S6 Manual/automatic operation. S8
Pump on.
S7
Pump off.
H8
White
Compressor is operating normally.
H9
Blue
Compressor is manually switched off.
H10
Yellow
Fault S9 Manual/automatic operation. S11
Compressor on.
S10
Compressor off.
H11 White
Pump is operating.
H12
Pump is manually switched off.
H13
Blue Yellow
Fault. S12 Manual/automatic operation.
Level switch Motor valve
TM03 8079 0307
Pressuremaintaining pump
Fire pump
Fault.
Status
Alarm Jockey pump Compressor
A
Pump is manually switched off.
Yellow
Optional controls and indicator lights
Control panel
V
Pump is operating.
S1
Cables of free-standing controllers enter a 100 mm high base frame and a bottom plate split in three parts.
Description Horn (acoustic).
Cables of wall-mounted controllers enter through cable glands.
The control panel design depends on the selected options. The control panel has a number of standard components (applies to all models) and optional components (selected options). See fig. 24 and the tables below.
Switch
White
Button
Indicator light
Alarm
H2
H1 Fire pump Standard components
The cabinet design depends on the selected options and the performance of the fire pump. The dimensions of the control cabinet depend on the number of options installed and on whether the controller is for wallmounting or free-standing. See also “Cabinet dimensions”, page 53.
Status
Standard controls and indicator lights
The control cabinet made of steel sheet is ingressprotected to IP 54. The standard colour of the cabinet is red (RAL 3000). The mounting plate is made of 3 mm galvanised sheet steel.
S14
Pump on.
S13
Pump off.
H14 White
Minimum water level (electrode in pressure tank)
H15 White
Normal water level (electrode in pressure tank)
H16 White
Maximum water level (electrode in pressure tank)
H17 White
Minimum water level (float switch)
H18 White
Maximum water level (float switch)
H19 White
Valve is closed.
H20 White
Valve is open.
H21
Yellow
Fault. S16
Valve open.
S15
Valve closed.
Analog measuring instruments • Voltmeter with phase-reversing switch (S1) • Ammeter.
49
Controller
Fire NKF
Potential-free signalling contact If a component in the controller detects a change, a potential-free signalling contact will generate a fault indication or indicate a new operating condition. These indications can be seen on the control panel and/or in a superordinate fault centre.
Cables
Functions • adjustable threshold values • adjustable response delay • phase sequence and phase-failure monitoring • asymmetry monitoring with adjustable scale for divergence. Operating modes • UNDER (U): Undervoltage monitoring
Star-delta starting Either one three-core and one four-core cable or two four-core cables, such as NYY and similar types.
• UNDER+SEQ (U+S): Undervoltage and phasesequence monitoring • WIN (W): Monitoring of the range between the min. and max. thresholds
Direct-on-line or autotransformer staring One four-core cable.
• WIN+SEQ (W+S): Monitoring of the range between the min. and max. thresholds and phase-sequence monitoring.
Optional equipment Depending on the option selected, two fused supply cables are available for the connection of auxiliary units.
Controller components 1 Overvoltage protection device (option) The overload protection device for the mains configuration TN-S (L1, L2, L3, N, PE) diverts dangerous overvoltages to the protective-earth conductor.
2 3 TM03 8022 0207
4
When the protection device has been activated, the red indicator light is on.
5
Fig. 26 Regulators and LEDs of the phase-failure relay Display
TM03 7782 4906
Regulators
Fig. 25 Overvoltage protection device
The device consists of four individual modules. For TN-S systems, these modules are individually interchangeable. Each module has a potential-free changeover contact which can trigger the relay for fault indication. Phase-failure relay (only for WM version) The phase-failure relay monitors the three-phase power systems with neutral conductors. The operator can adapt the phase-failure relay to the conditions of the supply network. Note: The device is designed for a rated voltage of 250 V AC and a frequency of 48 to 63 Hz.
50
Pos.
Description
Selection/scale
1
Asymmetry
5 to 25 %
Setpoint 10 %
2
Maximum
–20 to +30 %
–5 %
3
Minimum
–30 to +20 %
–10 %
4
Delay
0.1 to 10 seconds
5 seconds
5
Function
U, W, U+S, W+S
U+S
Monitoring module for pressure switches The monitoring module for both pressure switches monitors the cables and wires up to the pressure switches for cable breakage and short-circuiting of the input contacts. The module switches on the fire pump during a decrease in pressure.
Controller
Fire NKF
Installation General information 10 7
11 8
The installation and connection of the controller must comply with local regulations and accepted codes of good practice. This includes, among others, DIN VDE 0100, DIN VDE 0660, DIN VDE 0106 as well as the accident prevention regulations of the Accident Prevention and Insurance Association UVV VBG 4.
12 9
LEDs Pwr 1 NO 1off off
NC WB SC
Slide switches
4 1
5 2
6 3
TM03 7783 4906
Take into account the regulations for VdS-approved systems, especially VdS 2092 and VdS 2100.
Fig. 27 Monitoring module for pressure switches
Slide switches The monitoring module has three slide switches at the front for the control of the function of the monitoring module. The contact behaviour of the output relay, the wire breakage detection and the short-circuit monitoring can be set. Position The three slide switches must be in the correct position: NC: Quiescent current behaviour of the output relay, closes when a contact is opened on the input side WB: Wire breakage monitoring SC: Short-circuit monitoring. LEDs Two LEDs are located above the slide switches: • Pwr: Green = applied voltage. • 1: Yellow = low system pressure. Red = wire breakage or short-circuit.
Also observe the regulations of the local power supply companies.
Electrical connection The controller is approved for connection to the conventional TN system. Disconnection by means of an overcurrent device (DIN VDE 0100/part 410) can be used as a protective measure from indirect contact. Note: Residual current circuit-breakers are not allowed for the supply to VdS systems for special protection reasons. Different and/or supplementary preventive measures may be required for special network configurations, for example IT or TT systems, which may possibly cause alterations to the controller. The sizing of the supply cable must allow for the overload and short-circuit protection in compliance with DIN VDE 0100, part 430. The safeguard in the low-voltage main distribution system and in the emergency power system is to be conducted taking the selectivity of the NH-fuse in the fire pump controller into account. The cables for VdS systems should be selected and laid in such a way that they remain functional in the event of a fire (fire protection covering E 30 or E 90 or cables with function preservation E 90). The voltage supply to the X0 supply terminals takes place via an applied clockwise rotating field.
Resistance module, WM1 A resistance module must be directly connected to the respective pressure switch.
The line-to-line voltages can be read from the voltmeter by means of the input selector switch.
Operating conditions
The cables from the controller to the fire pump motor should be sized in accordance with DIN VDE 0100, part 430, to ensure short-circuit protection and to comply with the permissible line-drop voltage. The existing overload relay in the load circuit of the motor does not result in disconnection (VdS requirement) when it is triggered, but only in an indication of the fault.
Temperature range Ambient temperature: 0 to 40 °C Storage and transport: –25 to 60 °C. Relative humidity Keep air humidity at a low level to prevent the formation of moisture.
Motor connection
The factory setting of the motor outlet for the fire pump motor has been set to "counter-clockwise rotation".
51
Controller Operation
Level indication
This section covers the following:
Rod electrode A 4-pin rod electrode can be used in combination with the appropriate electrode relay for monitoring the level in the pressure tank. The necessary hysteresis between the individual switching points can occur via the individual truncation of electrode pins.
• fire pump • jockey pump (optional) • compressor (optional) • pressure-maintaining pump (optional) • level indication (optional) • motor valve (optional). If the system is in automatic mode during pump startup, the jockey pump and compressor operate as normal. All additional units are disconnected.
Fire pump During a decrease of pressure in the fire system, the fire pump is switched on automatically via the external pressure switches. The fire pump can be manually switched on and off by means of the respective buttons.
Float switch A float switch can be used to easily monitor the level in the pressure water tank, surge tank, storage tank, etc. in which a hysteresis of 120 mm is sufficient.
Motor valve The motor valve can be manually closed and opened by means of the respective push buttons.
Technical data Cabinet material
Sheet metal
Cabinet colour
Red, RAL 3000
Jockey pump
Enclosure class
IP 54
The jockey pump can be operated manually or automatically by using the selector switch.
Rated output
11-250 kW
Rated current
20.7-435 A
During automatic operation, the jockey pump is conducted by an external float switch in the pressure tank. If operation of the compressor is required (due to a decrease of pressure in the pressure tank) and the water level is below the normal level, the jockey pump starts automatically until the normal water level is reached. Subsequently, the nominal pressure is restored using compressed air. The jockey pump can be manually switched on and off by means of the respective buttons.
Compressor The compressor can be operated manually or automatically by using the selector switch. During automatic operation, the compressor is controlled by an external pressure switch, for example connected to the pressure tank. The compressor can be manually switched on and off by means of the respective buttons.
Pressure-maintaining pump The pressure-maintaining pump can be operated manually or automatically by using the selector switch. During automatic operation, the pressure-maintaining pump is controlled by an external pressure switch. The pressure-maintaining pump can be manually switched on and off by means of the respective buttons.
52
Fire NKF
Mains supply
3 x 400V 50 Hz N PE
Ambient temperature
0-40 °C
Inputs 2 x pressure switches for the fire pump. Outputs Potential-free signalling contacts for a superordinate fault centre. Acoustic signal 24V DC signal activated in the event of failure.
Optional equipment Depending on the option selected, two fused outputs are available for the connection of ancillary units. • 2 x 230 V, 16 A or • 2 x 400 V, 16 A.
Controller
Fire NKF
Product numbers
Cabinet dimensions
The product numbers for WM and WO/M are reference numbers for all controller versions. These numbers only cover controllers with standard operating devices.
Controllers with and without monitoring module have the same cabinet dimensions. If you choose one or more of the options, the cabinet dimensions may change.
Note: Compact Fire NKF units are only available with controllers up to 90 kW. Product numbers Versions with monitoring module Product No
11-15
96158766
CONTROL FS 1X
18.5-22
96158767
CONTROL FS 1X
30-37
96158768
CONTROL FS 1X
45-55
96158769
CONTROL FS 1X
75-90
96158770
CONTROL FS 1X
110-132
96158771
CONTROL FS 1X
133-160
96158772
CONTROL FS 1X
161-200
96158773
CONTROL FS 1X
201-250
96158774
Fire pump
Versions without monitoring module Controller
P2 [kW]
Product No
CONTROL FS 1X
11-15
96158775
CONTROL FS 1X
18.5-22
96158776
CONTROL FS 1X
30-37
96158777
CONTROL FS 1X
45-55
96158778
CONTROL FS 1X
75-90
96158779
CONTROL FS 1X
110-132
96158780
CONTROL FS 1X
133-160
96158781
CONTROL FS 1X
161-200
96158782
CONTROL FS 1X
201-250
96158783
Options Options to be assembled in the controller. Controller
Option
CONTROL FS 1.1A Jockey pump, 1.5 kW
Product No 96159009
CONTROL FS 1.1B Jockey pump, 2.2 kW
96159010
CONTROL FS 1.1C Jockey pump, 3-4 kW
96159011
CONTROL FS 1.2
Compressor, 2.2-3 kW
96159012
CONTROL FS 2.1
Pressure-maintaining pump, 0.75 kW 96739659
CONTROL FS 2.2
Pressure-maintaining pump, 1.1-1.5 kW
96739662
CONTROL FS 2.3
Pressure-maintaining pump, 2.2 kW
96739663
CONTROL FS 2.4
Pressure-maintaining pump, 3-4 kW
96159013
CONTROL FS 3.1
Level indication, rod electrode
96159014
CONTROL FS 3.2
Level indication, float switch
96159015
CONTROL FS 4
Motor valve
96159016
CONTROL FS 5.1
Fused supply, 400 V
96159017
CONTROL FS 5.2
Fused supply, 230 V
96159018
W
D
TM03 8579 2007
CONTROL FS 1X
A
H
P2 [kW]
Controller
V
Fig. 28 CONTROL FS 1 control cabinet dimensions
Controller
P2 [kW]
CONTROL FS 1X
11-15
CONTROL FS 1X
18.5-22
CONTROL FS 1X
30-37
CONTROL FS 1X
45-55
Dimensions [mm] (HxWxD) 1000 x 800 x 300 1200 x 800 x 300
CONTROL FS 1X
75-90
CONTROL FS 1X
110-132
1400 x 1000 x 300 1400 x 1000 x 300
CONTROL FS 1X
133-160
1900 x 1000 x 400
CONTROL FS 1X
161-200
CONTROL FS 1X
201-250
1900 x 1200 x 400
If you order more than three options, a new product number will be created on the order confirmation.
53
54
55
Being responsible is our foundation Thinking ahead makes it possible Innovation is the essence
96615165 0707 Repl. 96615165 0106
GB
GRUNDFOS A/S . DK-8850 Bjerringbro . Denmark Telephone: +45 87 50 14 00 www.grundfos.com
Subject to alterations.
