INTRO
Dual Plate Check Valve
The Dual Plate Check Valve is the most versatile and compact backflow prevention solution in modern industrial piping. Its spring-assisted dual plates close rapidly before flow reversal, effectively eliminating water hammer and ensuring a non-slam performance. At INTRO VALVE INDUSTRIES, we manufacture these valves with precision-engineered springs and independent hinge pins for maximum reliability in high-cycle applications.
Get Quote Key Performance Advantages:- Extremely short Face-to-Face (API 594)
- Lightweight construction reduces piping support costs
- Low pressure drop with high flow efficiency
Applications:
Pumping stations, Cooling water loops, HVAC,
Desalination plants, and chemical processing.
Design Standards:
API 594 / API 598 / ASME B16.34
End Connections:
Wafer, Lug, Double Flanged.
Materials:
Body: CI, DI, WCB, CF8, CF8M. Plate: DI (Nylon coated), CF8M, Al-Bronze. Spring: SS304/SS316/Inconel.
Body: CI, DI, WCB, CF8, CF8M. Plate: DI (Nylon coated), CF8M, Al-Bronze. Spring: SS304/SS316/Inconel.
| Component | Standard Material | Technical Data / Variants |
|---|---|---|
| Body | CI / DI / WCB / SS | FG 260 / GGG 40 / A216 WCB / A351 CF8M |
| Plates (Disc) | SS / DI / Al-Bronze | AISI 304 / 316 / Monel / CF8 / CF8M |
| Spring | SS 304 / 316 / Inconel | Spring-assisted closure (Non-Slam) |
| Seat | EPDM / Viton / Metal | Integral or Replaceable Resilient Seat |
| Hinge / Stop Pin | Stainless Steel | AISI 410 / 304 / 316 |
| Bearings | PTFE / Bronze | Reduces friction for smooth plate movement |
| Eyebolt | Carbon Steel | Standard for sizes 6" and above |