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what is a lockshield valve

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June 17, 2026
Bradley's Radiators
What Is a Lockshield Valve: UK Heating Guide

A lockshield valve is the adjustable balancing valve on a radiator, usually on the return side, and it's there to control how much hot water flows through that radiator so the whole house heats more evenly. It's designed to be set with a tool rather than by hand, and typical UK radiator and lockshield valve

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