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Heavy Duty S
GA Figure 230
GA Figure 230
Heavy Duty S
Size:
3" to 12"
Type:
Check Valve
GA Industries Figures 230-D and 230-U are heavy duty, customizable swing check valves that utilize an adjustable spring assisted closure to minimize slam and hammer.The valves are typically installed on the discharge of a pump to prevent backflow when the pump is off line.They open smoothly at pump start and closes quickly and quietly upon pump shutdown.__Figure 230-D and 230-U meet the design, materials of construction and testing required by AWWA C508 and are suitable for use with water or sewage, in horizontal or vertical flow up pipes.
Characteristics
Heavy duty construction withstands rigors of pump station operation __Full flow area when swung only 25° away from seat for low head loss and reduced pumping cost __Replaceable rubber disc seat for tight seating at low and high pressure __Lever & spring field convertible right hand to left hand side, and from horizontal to vertical installation
Material
Body & Disc: Cast Iron, ASTM A126 Class B __Cover: Steel, ASTM A36 __Body Seat: Stainless Steel, Type 316 __Disc Seat: Buna-N __Hinge Shaft: Steel, ASTM A36 __External Fasteners: Steel, A307, Zinc Plated __Spring: Steel
Corrosion Protection
Standard: Uncoated internal, external coated with enamel primer, minimum 2 mil DFT __Optional: 316 SS external fasteners and internal and external NSF-61 certified 2-part epoxy, minimum 6 mil DFT