The main difference between standard swing check valves and wafer type check valve is that the wafer types do not have the full-bodied arrangement. When the valve opens, the disc is forced into the top of the pipeline. Due to a very short face-to-face dimension the body has a reduced bore. Wafer Type Check Valve are virtually maintenance free, the disc is self-centering and protected and it has a special limit stop to protect against pipeline damage.
Features
- Small and simple design.
- Minimal wear on moving parts
- Light Weight
- Reduced Bore
Material Specification
| Body | Ductile Iron /Cast Iron |
| Cover | Ductile Iron /Cast Iron |
| Flaps | Ductile Iron |
| Internal, External Bolts, Nuts | Stainless Steel / Galvanized Steel |
| Sizes | DN 40 – DN 600 |
| Pressure Rating | PN10/16/25 |
| Hydraulic Test | 1.1xPN for Seat & 1.5xPN for Body |
| Coating | Nontoxic Epoxy Internally & Externally |
