Normally installed in 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.
Figures 231-D and 232-D meet the design, materials of construction and testing required by AWWA C508 and are suitable for use with water or sewage.
Product Number: GA Figure 231, 232
3″ x 4″ to 8″ x 12″
Check Valve
Wastewater, Water
- Heavy duty construction withstands rigors of pump station operation
- Expanded outlet connection can eliminate need for increaser fitting
- 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
- 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 (Optional 316 Stainless Steel)
- External Fasteners: Steel, A307, Zinc Plated (Optional 316 Stainless Steel)
- Spring: Alloy Steel
- Standard: Internal and external NSF-61 certified 2-part epoxy
