15MM Angle Lockshield Valve

15MM Angle Lockshield Valve

Here’s the problem most heating systems have: radiators near the boiler get too much hot water and run boiling hot, while radiators further away barely get warm. It’s not that the system’s broken, it’s that the water takes the path of least resistance and most of it goes to the closest radiators. This valve fixes that by locking the flow rate at each radiator so it gets exactly the amount it needs, no more, no less. That means every radiator in the house actually heats properly instead of some being too hot and others being cold.

It’s not a thermostatic valve — you’re not adjusting temperature with it. It’s a lockshield, which means you set the flow rate once during system commissioning and then it stays locked. The boiler does the temperature work, this valve does the flow distribution.

Corrosion-resistant material means it doesn’t seize or leak after a couple of seasons of use. The angled design fits installations where the pipe comes in from the wall or floor sideways.

What you’re actually getting

• A valve that locks the radiator flow at the right level
• Balances hot water distribution so every radiator gets its share
• Stops radiators close to the boiler from hogging all the heat
• Gets radiators further away actually warming up properly
• Corrosion-resistant material that holds up long-term
• Angled connection for radiators where the pipe comes in sideways
• Works with 15MM central heating systems
• Once set, it stays set — no fussing

Specs, straight up

Corrosion-resistant material, designed for compatible 15MM central heating systems. Delivers reliable flow regulation, dependable balancing and long-term durability.

Where it gets used

Homes, apartments, offices, hotels, schools, hospitals, commercial buildings — basically any building with central heating where radiators aren’t heating evenly. Modern and older heating systems that need proper balancing to work efficiently.

Get a qualified heating engineer or plumber to fit it. Needs to be set correctly during system commissioning so the flow is balanced across all radiators.

Why this product

A heating system that heats everything unevenly is a system that’s not working properly, even if nothing’s actually broken. This valve lets you fix that by controlling how much flow each radiator gets — lock it at the right level and the system distributes heat evenly instead of some radiators cooking while others freeze. Install it alongside your thermostatic valves and the system works the way it’s supposed to.

Grab the 15MM Angle Lockshield Valve from Smart Innovation and balance your heating so every room actually gets warm.