GA Figure 250, VALVE AND EQUIPMENT CONSULTANTS, INC.

Master Stocking Distributor & Valve Automation Shop

Oklahoma: 800.454.4085 Dallas: 972.675.8870 Houston: 281.324.1500

GA Figure 250

AirCushioned

Size: 3" to 48"
Type: Check Valve

GA Industries Figures 250-DS and 250-US heavy duty, customizable swing check valves utilize an adjustable counterweight for rapid closure combined with a highly engineered air cushion chamber to provide non-slam operation. __Typically installed on the discharge of a pump to prevent backflow when the pump is off line, it opens smoothly at pump start and closes quickly and quietly upon pump shutdown. __Especially designed to withstand the rigors of pump station operation, the Figures 250-DS and 220-US meet the design, materials of construction and testing required by AWWA C508 and are suitable for use with water or sewage.

Characteristics

Unique disc design affords 360 degree articulation for tight sealing under all pressure conditions __Opens to full flow area when swung only 25° away from seat for low head loss and reduced pumping cost __Bolted cover allows access to all internal components __Lever & weight and air cushion 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: Stainless Steel, Type 303 __Cushion Chamber: Bronze __External Fasteners: Steel, A307, Zinc Plated

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