Wafer Dual Plate Swing Check Valve
H76H wafer dual plate swing check valve combines a compact wafer body with spring-loaded dual plates for reliable automatic non-return protection. Its short closing stroke, low pressure drop, and wide size range make it suitable for water, steam, oil, gas, HVAC, pump discharge, and large-diameter industrial pipeline applications.
- Not sure which product or configuration is suitable? Contact our team to discuss your requirements.
PRODUCT DETAILS
The H76H Wafer Dual Plate Swing Check Valve is designed to provide reliable automatic non-return protection in steam, water, oil, gas, and compatible industrial pipeline systems.
Its compact wafer body is installed between pipeline flanges, helping reduce overall installation length, weight, and space requirements compared with conventional flanged check valves. Two semi-circular plates are mounted on a central hinge pin and open symmetrically under forward flow.
Torsion springs assist the plates during closing, providing a short and fast closing stroke when flow stops or reverses. This design helps reduce reverse-flow momentum and water hammer while maintaining a relatively large flow area and low pressure drop.
Technical Specifications
| Valve Type | Wafer Dual Plate Swing Check Valve |
| Connection | Wafer / Between Flanges |
| Size Range | DN40-DN2100 |
| Pressure Rating | PN20-PN420, ASME Class 150-2500 |
| Body Material | WCB Carbon Steel, CF8, CF8M, Alloy Steel, Duplex Steel |
| Sealing Surface | Cr13 Stainless Steel, Stellite Option |
| Disc Design | Dual Semi-Circular Plates |
| Spring Material | SS304 / SS316, INCONEL Option |
| Operation | Automatic Spring-Loaded Non-Return |
| Installation | Horizontal or Vertical Pipeline |
| Typical Applications | Water, Steam, Oil, Gas, HVAC, Pump Discharge and Industrial Pipelines |
Key Features
- Compact wafer body for space-saving installation
- Spring-loaded dual plate design for fast closing response
- Short disc travel helps reduce reverse-flow impact and water hammer
- Large flow area with relatively low pressure drop
- Suitable for horizontal and vertical pipeline installation
- Wide size and pressure range for demanding industrial applications
- Multiple carbon steel, stainless steel, alloy steel, and duplex steel options
- Suitable for water, steam, oil, gas, HVAC, and pump systems
Applications
The H76H Wafer Dual Plate Swing Check Valve is suitable for pump discharge lines, compressor systems, steam pipelines, water and condensate systems, oil and gas pipelines, HVAC chilled and heating water systems, large-diameter pipelines, compact skids, and other industrial applications requiring reliable reverse-flow protection.
ZEMTECH GAS provides product selection support based on valve size, pressure rating, body material, flange standard, service medium, operating temperature, spring material, sealing surface, installation orientation, and cracking-pressure requirements.
TECHNICAL SPECIFICATIONS
Product Specifications
Specifications may vary by model, material, pressure rating and project requirements.
| Model | H76H |
|---|---|
| Size Range | DN40-DN2100 |
| Pressure Rating | PN20-PN420, Class 150-2500 |
| Body Material | WCB, CF8, CF8M, Alloy Steel, Duplex Steel |
| Spring Material | SS304, SS316, INCONEL |
Quality Control
Products are checked according to order requirements and applicable specifications before delivery
Technical Documentation
Product specifications, technical data, and related documents can be provided based on project requirements
Selection Support
Our team can assist with product selection based on application, medium, pressure, size, and installation requirements
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