Wafer Check Valve
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Wafer Check Valve
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Wafer check valves are compact, lightweight, and cost-effective valve solutions designed to prevent reverse flow in pipeline systems. They are typically used in applications where a high degree of backflow protection is required, such as in wastewater treatment plants, chemical processing, and oil and gas industries. The wafer design of these valves allows for installation between flanges, without the need for a separate body or bonnet, making them an excellent choice for space-constrained environments.
A key feature of wafer check valves is their ability to operate in a wide range of pressures and flow rates, making them suitable for a variety of applications. They are commonly available in materials such as stainless steel, ductile iron, and PVC, ensuring compatibility with a wide range of piping systems. In addition to their functional benefits, wafer check valves are also recognized for their ease of installation and maintenance, as well as their ability to be serviced in place without requiring removal from the pipeline.Â
Features
- Compact Wafer Design
- Spring-Loaded Disc/Poppet
- Simple Two-Part Construction
- Full Bore Design
- Swing, Tilting Disc, and Dual Plate Options
- Wide Range of Materials
Applications
- Water and Wastewater Treatment
- Chemical Processing
- Food and Beverage Processing
- Marine Applications
- Power Generation
- HVAC Systems
Specifications
| Valve Type | Wafer Check Valve (Single Disc, Dual Plate, or Swing Check - Specify which one) |
| Size Range | 2" - 24" (DN50 - DN600) Example, adjust based on your needs |
| Pressure Rating | ANSI Class 150, 300, 600, etc. (PN10, PN16, PN25, PN40, etc. - Specify both ANSI and PN if applicable) |
| Body Material | Stainless Steel (304, 316), Carbon Steel (A216 WCB), Ductile Iron (A536) Specify grade |
| Disc/Plate Material | Stainless Steel (304, 316), Carbon Steel, Bronze, Ductile Iron Specify grade |
| Seat Material | EPDM, Viton, PTFE, Metal-to-Metal (Stainless Steel) Specify material and grade as needed |
| Spring Material | Stainless Steel (302, 316) Specify grade |
| Operating Temperature | -20°F to 400°F (-29°C to 204°C) This depends heavily on the seat and body materials - adjust based on the materials selected. |
| Connection Type | Wafer (Fits between flanges - ANSI, DIN, JIS - Specify flange standard) |
| Applicable Standards | API 594, API 6D, ASME B16.34, EN 12516 Adjust based on required standards and the specific valve design |
| Cracking Pressure | 0.5 PSI (0.034 bar) to 2 PSI (0.14 bar) This is the minimum upstream pressure required to open the valve. Specific value depends on spring tension. |
| Face-to-Face Dimension | According to API 594 or Manufacturer's Standard Important for installation; specify the relevant standard or request dimensions. |
| Inspection & Testing | API 598, EN 12266 Adjust based on project requirements |
