Plumbright Double Check Valve - 22mm
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City Plumbing GBPlumbright Double Check Valve 22Mm Dzr Dcv22dzr
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Product Information
Full details
The Plumbright Double Check Valve is an essential plumbing component for homeowners and professional installers looking to secure 22mm pipe systems against backflow contamination. By ensuring water flows in only one direction, it helps maintain system hygiene and protects your main supply, though it requires precise installation to ensure the flow direction is correctly oriented.
All features
| Model Part Number | DCV22DZR |
|---|---|
| Brand | Plumbright |
Extended Product Information
FAQs
Can this valve be used on hot water lines?
Yes, this DZR valve is suitable for standard residential hot and cold water systems.
Does this valve require regular maintenance?
It is recommended to visually inspect the valve during routine plumbing checks to ensure there are no signs of external leaks or corrosion.
How do I identify the correct flow direction?
Look for the arrow stamped onto the side of the valve body; it must point in the direction of the water flow towards the appliance.
Is this valve suitable for outdoor use?
Yes, it is often installed on outdoor taps, provided it is protected from freezing temperatures.
Can I install this vertically?
Yes, double check valves can generally be installed in both horizontal and vertical pipe runs, provided the flow direction is correct.
Troubleshooting
Water flow is restricted after installation
Verify that the valve is installed in the correct orientation according to the flow arrow; if reversed, it will block water flow.
Leakage at connection points
Ensure the pipe ends are cut square and deburred before tightening the compression nuts to the correct torque.
Pros and Cons
Pros
- DZR-rated for enhanced corrosion resistance
- Essential for compliance with water supply regulations
- Robust construction for long service life
- Standardized sizing for easy integration
Cons
- Requires professional pipe cutting and fitting skills
- Must be installed in the correct flow direction
- Requires periodic checks to ensure internal springs remain clear
Setup, Compatibility & Care
To install, ensure the water supply is fully isolated. Cut the 22mm pipe cleanly and use appropriate compression fittings to secure the valve. Always observe the directional arrow marked on the valve body, which must point toward the outlet. After installation, slowly restore pressure and inspect the joints for leaks. Care involves annual inspections to ensure the valve has not been affected by debris or severe scale buildup. If the flow rate to your appliance decreases significantly, check the valve for potential internal blockages.