How to Replace a Service Valve (UK)
Fit a 15 mm or 22 mm mini service (isolation) valve. Chrome, ball or straight. Kitchen and basin isolators.
PeglerRelianceJG Speedfit
Types
- Screwdriver-slot compression — cheapest, hidden under sink.
- Ball valve lever — best flow, more visible.
- JG Speedfit — plastic push-fit, fast install.
Fit
Isolate mains. Cut pipe. Deburr. Compression olive with copper flow direction. Full ¼-turn beyond hand-tight.
Frequently asked questions
- Do service valves reduce flow?
- Slightly for slot-type (up to 20 %). Ball valves — negligible.
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