Plumbright Isolating Valve - 15mm - Q70129
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City Plumbing GBPlumbright Isolating Valve 15Mm Chrome With Handle Q70129
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Product Information
Full details
The Plumbright Isolating Valve is an essential plumbing component for homeowners and contractors who need to manage water flow to individual fixtures or appliances. Its primary benefit is enabling targeted maintenance and repairs without the inconvenience of shutting off the main water supply for the entire property; however, it is strictly intended for 15mm pipework and requires basic plumbing competence to install correctly.
All features
| Model Part Number | Q70129 |
|---|---|
| Brand | Plumbright |
Extended Product Information
FAQs
Can I use this valve on plastic pipework?
Yes, provided you use the appropriate pipe inserts designed for your specific brand of plastic pipe.
Is this valve suitable for central heating systems?
It is intended for domestic water supply lines. Consult with a heating engineer if you intend to use it within a closed-loop heating circuit.
Does this valve require PTFE tape?
Generally, no. Compression fittings rely on the compression olive to form the seal, not the threads.
Can this be used for hot and cold water?
Yes, it is designed for use in standard domestic hot and cold water plumbing systems.
How often should I test the valve?
It is recommended to turn the valve fully on and off at least once or twice a year to ensure the internal seal remains free-moving.
Troubleshooting
Valve leaking from the compression joint
Tighten the compression nut slightly with a wrench. If it continues to leak, inspect the olive for damage or ensure the pipe end is square and free from debris.
Valve handle is difficult to turn
Mineral deposits may have accumulated. Ensure the system pressure is off, then gently wiggle the handle to break up minor deposits.
Dripping from the valve spindle
This often indicates a worn internal seal. As this unit is a sealed component, it usually requires replacement of the entire valve.
Pros and Cons
Pros
- Enables maintenance of individual fixtures without disrupting whole-house water supply
- Easy-to-use manual quarter-turn handle
- Compact design ideal for tight spaces under sinks or behind appliances
- Reliable shut-off mechanism prevents leaks during repair work
Cons
- Only compatible with 15mm pipe sizes
- Requires installation skills including pipe cutting and compression fitting
- Not intended for high-pressure commercial industrial lines
Setup, Compatibility & Care
To install, ensure the water supply is isolated and the pipes are drained. Cut the 15mm pipe squarely and deburr the ends before sliding on the compression nuts and olives. Tighten the nuts firmly onto the valve body, ensuring a watertight seal. Always verify compatibility with existing pipe material (copper or PEX). Once installed, open and close the valve periodically—at least twice a year—to prevent mineral buildup from locking the internal mechanism. Avoid using excessive force if the handle feels stuck; a gentle cleaning or professional inspection is advised if stiffness persists.