Transcript
High solids epoxy coating for crude oil tanks CASE STUDY Challenge Located in Dickinson, N.D., Steffes Corporation manufactures 400barrel crude oil tanks used for storage at well sites in North Dakota’s Bakken Formation. Until recently, Steffes had been using a single-component airless sprayer to apply the coatings. Each day they would hand mix the coating in 5-gallon pails prior to spraying the tanks. The increased demand for oil in North Dakota has created a need to increase tank production at their facility.
Solution The Graco XP70™ Plural-Component Sprayer with an optional XP Pressure Monitor Kit has been profitable with a quick return on investment for Steffes. The system has allowed Steffes to consider faster setting, higher solids coatings supplied by Sherwin-Williams.
Results The greatest benefit of the Graco XP70 for Steffes Corporation has been faster production. Before the Graco XP70, Steffes was coating three oil tanks per day; now they can coat up to five, a 40 percent increase in production. The primary reason for faster production is the ability to heat and mix the coating on demand at higher flow rates and not worry about the coating’s pot-life. Because the Graco XP70 is a plural-component sprayer, it is necessary to implement an appropriate quality control method. The XP Pressure Monitor Kit reads the pressures on the A and B components and shuts down the sprayer if off-ratio conditions exist. A simple green, yellow or red light indicates the status of the machine. On two occasions, the kit has prevented
The Graco XP70 Plural-Component Sprayer is designed to pump, mix and atomize high-viscosity materials with superior results.
down time and costly rework.
For more information, contact us at 1-877-844-7226 or
[email protected]. Visit us at www.graco.com
s p ec i f i cat i o n s End User
Graco Equipment
Steffes Corporation
• Graco XP70® Plural-Component Sprayer
INDUSTRY
Configuration
Tank Manufacturing
material supplier / DISTRIBUTOR Sherwin-Williams
Application Protective coatings for oil storage tanks Material Specs: Phenicon High Solids is a VOC-compliant epoxy novolac phenolic coating formulated for use as an internal lining for tanks used to hold crude oil and most refined petroleum products including unleaded gasoline, MTBE, aromatic solvents, and most octane booster blending stocks. It is also formulated for secondary containment uses. Coating was heated for pluralcomponent application.
• Proportioner: XP70™ Plural Component Sprayer with material hoppers (571402) • Heaters: (2) Viscon™ HP Fluid Heaters with mounting hardware (245863) • Hose Configuration: 10 in (254 mm) static mixer, 3/8 in x 75 ft (9.5 mm x 23 m) fluid hose, 5 in (127 mm) static mixer, 1/4 in x 10 ft (6.4 mm x 3 m) whip hose Accessories: • XP Pressure Monitor Kit: P/N with air turbine power supply and light tower (262942) • Solvent Flush: 45:1 Merkur™ Flush Kit (262393) Delivery Method: • XTR-7™ spray gun with 519 tip (XTR704)
Typical Properties • Ratio (A:B) by volume: 4:1 • 75% solids Epoxy • Pot Life: 30 minutes at 120°F (49°C)
Graco Inc. P.O. Box 1441 Minneapolis, MN 55440-1441
© 2011 Graco Inc. 348504 Rev. A 4/11 All written and visual data contained in this document are based on the latest product information available at the time of publication. Graco reserves the right to make changes at any time without notice. All other brand names or marks are used for identification purposes and are trademarks of their respective owners.
An XP Pressure Monitor Kit provides assurance that the Graco XP70 is spraying accurately and on-ratio.
