Straight Service Valve - 15mm X 1/2 inch - 2 Pack
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B&QB&Q - 2X 15mm X 1/2" Straight Chrome Service Valve Compression Isolation Valve
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Product Information
Full details
The Xcel Home 15mm x 1/2 inch straight service valve is designed for professional plumbers and DIY homeowners who need reliable water isolation for individual fixtures. It excels at allowing you to turn off water to specific taps or appliances, such as toilets or basins, without needing to drain your home's entire plumbing system, though it is strictly for standard 15mm copper piping and 1/2 inch BSP threaded connections.
All features
| Model Part Number | 5056866129688 |
|---|---|
| Brand | Xcel Home |
Extended Product Information
FAQs
Are these valves suitable for hot water?
Yes, these valves are designed for both hot and cold domestic water installations.
Do these valves come with olives and nuts?
Yes, the valves include the necessary compression nuts and olives for installation on 15mm copper piping.
Can I use this with 15mm plastic pipe?
Only if you use a plastic pipe insert to support the pipe wall at the compression joint, otherwise it is designed for copper.
What tool do I need to open and close these valves?
You need a standard flathead screwdriver that fits the slot on the front of the valve.
Is the outlet thread compatible with standard tap tails?
Yes, the 1/2 inch BSP thread is the standard size for most household tap and appliance connector tails.
Troubleshooting
The valve is leaking from the compression joint
Tighten the compression nut slightly further. If it persists, ensure the pipe is not bent or misaligned.
Valve is difficult to turn
Check for mineral build-up and apply a small amount of silicone-based plumbing lubricant to the spindle.
Water continues to flow after turning the valve to off
Ensure the valve has been rotated a full 90 degrees and check if there is debris obstructing the ball mechanism.
Pros and Cons
Pros
- Prevents the need to drain the entire home plumbing system during repairs
- High-quality chrome-plated brass finish resists rust and corrosion
- Easy-to-use slot head operation
- Compact straight design fits in tight under-sink spaces
- Standard sizing ensures broad compatibility
Cons
- Not suitable for PEX or plastic piping without specific inserts
- Requires a flathead screwdriver for operation
- Limited to 15mm diameter copper pipe systems
Setup, Compatibility & Care
For installation, ensure your 15mm copper pipe is cut squarely and deburred to prevent damage to the internal olive. Slide the nut and olive onto the pipe before inserting it into the valve compression inlet, then tighten firmly with a wrench. The 1/2 inch BSP threaded outlet should be connected to your appliance hose or tail, ideally using a rubber washer to ensure a watertight seal. Avoid overtightening, as this can deform the olive or damage the brass threads. Periodically cycle the valve once or twice a year to prevent mineral deposits from seizing the internal mechanism.