Dual Plate Check Valves
Dual Plate Check Valve
A dual plate check valve is a wafer-type check valve mounted between two flanges, with two half-discs hinged at the centre and closed by spring force. Due to the short closing distance and spring support of the discs, it closes very rapidly when flow stops, significantly reducing water hammer. It is much shorter and lighter than swing check valves.
With GG-25 cast iron body, GGG40.3 ductile iron discs (option: nickel-plated) and EPDM seal, it operates up to 110 °C. It is rated PN16 in the range DN50–DN300, and PN10 in the range DN350–DN600. Stainless steel PN40 models are also available.
DN50–DN600Nominal size
PN16 / PN10Working pressure
110 °CMax. temperature
WaferCompact and lightweight
Advantages
- Rapid closure reduces water hammer
- Short and lightweight body compared to swing type
- Installation in any position
- Economical solution for large sizes
Applications
- Water transmission and distribution lines
- Pump stations
- HVAC, heating and cooling
- Fire and industrial water lines
Technical Specifications
| Nominal size | DN50 – DN600 |
|---|---|
| Working pressure | PN16 (DN50–DN300) |
| PN10 (DN350–DN600) | PN10 (DN350–DN600) |
| Max. temperature | +110 °C |
| Installation | Between flanges (wafer) |
Materials
| Body | GG-25 cast iron (option: stainless steel) |
|---|---|
| Discs | GGG40.3 ductile iron (nickel-plated option) |
| Spring and shaft | Stainless steel |
| Seal | EPDM |
Why ORFA?
Since 1985Over 40 years of experience in industrial plumbing equipment supply.
Technical ConsultancySupport in selecting the right valve based on line pressure and size.
Stock DeliveryCommon sizes shipped from stock same day.
Spare PartsBall seat, threaded body and lever kit along with other valve spare parts from a single source.
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