Product Overview
The KOZO WCB Heavy Hammer Swing Check Valve is designed for large-diameter pump discharge and industrial water systems where an external counterweight or heavy-hammer mechanism is used to influence disc closing behavior. The valve opens with forward flow and closes automatically when flow falls or reverses.
Key Design Features
- Conventional swing-disc non-return mechanism.
- External heavy-hammer / counterweight closure assistance.
- ASTM A216 WCB cast-steel body reference.
- Large-diameter flanged construction.
- Adjustable mechanical closing influence according to system design.
Technical Specifications
| Valve Type | Heavy Hammer Swing Check Valve |
|---|---|
| Reference Size | 24 in |
| Reference Pressure | ASME Class 150 |
| Body Material | ASTM A216 WCB |
| Closure Assist | External Counterweight / Heavy Hammer |
| Operation | Automatic Non-Return |
Typical Applications
- Pump discharge lines
- Large water-transmission systems
- Cooling-water systems
- Industrial utility piping
- Large-bore process systems
Selection Notes
The counterweight setting should be coordinated with flow velocity, pump trip conditions, disc inertia and surge behavior. A heavier counterweight does not automatically mean better water-hammer control; closing characteristics should be evaluated for the actual system.
How to Specify
Please provide size, pressure class, medium, normal/minimum flow, design pressure, temperature, installation orientation and any surge-analysis requirements.
FAQ
What is the purpose of the heavy hammer?
It provides an external closing influence that can help control disc movement, but the final setting should be matched to system dynamics.
