Plumbright Gatevalve Lockshield - 28mm
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City Plumbing GBPlumbright Gatevalve Brass Lockshield Compression Bs Z2015
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Product Information
Full details
The Plumbright Gatevalve Lockshield 28mm is a specialized flow control component designed for professional plumbers and DIYers who need a permanent or semi-permanent way to restrict access to water supply lines. Its primary benefit is providing robust, secure shut-off capabilities that prevent unauthorized tampering or accidental adjustments to a system's flow, though it requires a specific key or tool for operation which may be inconvenient in emergency situations.
All features
| Model Part Number | Z2015 |
|---|---|
| Brand | Plumbright |
Extended Product Information
FAQs
Does this valve come with a key?
No, the lockshield key is typically sold separately or is provided as a standard tool in most plumber's toolkits.
Can this be used on gas lines?
No, this valve is specifically designed for water and heating systems and should never be used on gas piping.
Is it suitable for vertical installation?
Yes, it can be installed in vertical or horizontal pipe runs, provided the flow direction arrow is followed.
What is the maximum pressure rating?
It is rated for standard domestic water pressure; please refer to the manufacturer's technical data sheet for specific bar pressure limits.
Do I need PTFE tape for this installation?
Compression joints rely on the olive for the seal, so thread sealant or PTFE tape on the threads is generally not required and may interfere with the fit.
Troubleshooting
Valve leaking from the spindle
Tighten the gland nut located under the lockshield cap slightly to compress the packing material.
Compression joint leaking
Ensure the olive is properly seated and tighten the nut in quarter-turn increments until the leak stops.
Stiff operation
Check that there is no debris in the valve seat and ensure the gate mechanism is properly aligned.
Pros and Cons
Pros
- Prevents unauthorized water supply shut-off or adjustment
- Highly durable metal construction for long service life
- Secure seal reduces the risk of drips or leaks over time
- Standardized fit for 28mm pipework
Cons
- Requires a separate key or specialized tool for operation
- Not suitable for rapid emergency shut-off needs
- More complex to install than standard manual handle gate valves
Setup, Compatibility & Care
Installation requires basic plumbing tools, including pipe cutters, deburring tools, and adjustable wrenches for the compression fittings. Ensure the pipe ends are clean, square, and free of burrs before sliding on the compression nuts and olives. When tightening, do not over-torque the nuts as this can deform the olive and cause leaks. Periodically check the valve stem for signs of moisture. If the valve is not used for extended periods, perform a partial cycle once a year to ensure the internal gate does not seize.