Best current price£17.28from B&Q
Shopping.co.uk recommended and popular offers
B&Q£17.28Visit shop B&Q - Vcd Double Check Valve Dzr 28mmWras Approved125mm LengthModel 571458
Visit shop
Amazon£19.37Visit shop Primaflow VCD Double Check Valve - DZR 28mm, WRAS - 571458
Visit shop5 offers from £17.28 - £19.37
View price history by clicking the chart icon.
The Primaflow VCD Double Check Valve is designed for plumbers and homeowners seeking reliable backflow prevention in water systems. Its key benefit is ensuring a safe and uncontaminated water supply by preventing the reverse flow of potentially harmful substances. A potential consideration is its specific 28mm sizing, requiring compatible plumbing infrastructure. This valve features durable DZR brass construction, WRAS approval, and an easy-to-install design, making it a robust choice for maintaining water quality.
| Model Part Number | 571458 |
|---|---|
| Brand | Primaflow |
DZR stands for Dezincification Resistant. This means the brass alloy is specially formulated to prevent the leaching of zinc when in contact with water, significantly increasing its lifespan and preventing corrosion.
Backflow prevention is crucial for protecting potable (drinking) water supplies from contamination. It stops water that may have come into contact with pollutants from flowing back into the clean water system.
While DZR brass offers good durability, this specific model is generally recommended for cold water applications. Always check the product's full specifications or consult with a plumbing professional for hot water suitability.
WRAS (Water Regulations Advisory Scheme) approval means the product has been tested and meets the stringent standards set by UK water companies for use in contact with drinking water.
28mm is a common pipe size in many plumbing systems, particularly for certain domestic water lines. It's best to measure your existing pipework or consult your system's design plans to confirm compatibility.
While the valve is designed for straightforward installation, it is recommended that plumbing work, especially involving backflow prevention and WRAS-approved components, be carried out by a qualified professional to ensure correct fitting and compliance.
Verify the valve is installed in the correct flow direction. Ensure no debris is obstructing the valve mechanism. Check if other valves in the system are closed.
Ensure all compression fittings are tightened correctly. If soldered, re-check the joint for integrity. For persistent leaks, professional assessment may be needed.
Ensure the valve is correctly seated and that the system pressure is within normal operating limits. Check for any loose pipework.
Setup: Ensure the valve is installed in the correct orientation as indicated by any flow direction arrows on the body. It should be fitted into a section of 28mm pipework. Connections should be made using appropriate compression fittings or soldering techniques suitable for DZR brass. Always isolate the water supply before commencing installation.
Compatibility: This valve is designed for 28mm copper or compatible plastic pipe systems. It is WRAS approved for use with potable water. Check local regulations and system requirements to ensure it is suitable for your specific application.
Care: The valve is designed to be maintenance-free under normal operating conditions. Periodically check for any signs of external damage or leaks. If the valve is installed in a system with significant sediment, consider installing a filter upstream to protect the valve's internal components.
