Venn Co.
Venn VD-7N type pressure type vacuum breaker (for water)
Manufacturer: Venn Co., Ltd.
Model: VD-7N
Features
- The intake mechanism uses a float structure.
- When water flows, it closes securely, and when negative pressure is generated, air is introduced promptly to prevent backflow caused by reverse siphon action.
- It also uses a spring system that closes the valve before backflow occurs.
- By guiding the intake port connection pipe to the drainage ditch, any potential valve leaks will not pollute the surroundings.
- Additionally, it is equipped with a test cock as standard, allowing you to check the functions of both the check valve and intake valve while the piping is connected.
Specifications
| Product code | VD7N-F |
|---|---|
| Valve type | Vacuum breaker |
| Nominal diameter | 20/25 (3/4/1) |
| Applicable fluid | Tap water / water |
| Fluid temperature | 0-45 ℃ (cannot be frozen) |
| Applicable pressure | 0.05-1.0MPa |
| Minimum differential pressure before and after the valve | 0.05MPa |
| Minimum differential pressure for valve opening | 0.05MPa |
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