Wrekin Water 15mm or 22mm Full Bore Valve Set - VALVES ONLY

This full bore isolation valve set from WrekinWater gives you a dedicated shut-off point either side of a water softener, filter housing, or other in-line appliance. Choose the 15mm or 22mm size to match your pipework, and because the bore is full width there's no restriction to flow when the valve is open. This listing is for the valve bodies only, so you'll need your own compression fittings if these aren't already supplied with your system.

Signs you need this part

• Your existing isolation valve weeps or drips around the lever spindle.
• The handle has seized, become stiff, or no longer shuts off flow fully.
• You're plumbing in a new softener or filter and there's no isolation point either side of it.
• An old compression valve has corroded internally and won't hold back pressure properly.

A full bore isolation valve lets you shut off water to a single appliance without cutting off supply to the rest of the house, and because the bore matches the pipe diameter it doesn't create the pressure drop a reduced-bore valve would. If your current valve is worn, seized or leaking, you lose that control point - which makes even a simple job like changing a filter cartridge or servicing a valve head far riskier, since you're left isolating the whole property or working on a live water main.

WrekinWater is a family run business based in Bettisfield, Shropshire, and has supplied parts and systems to more than 50,000 customers over 15 years, with an Excellent rating on Trustpilot. We stock the plumbing parts that pair with the softeners and filters we sell, including straightforward isolation valves like this one.

How to fit it

1. Isolate the water supply at the stopcock and open a tap to relieve pressure in the pipework.
2. Cut the existing pipe cleanly at the point where the valve will sit, and deburr both ends.
3. Slide the compression nuts and olives onto the pipe ends before offering up the valve.
4. Fit the valve body between the pipe ends and hand-tighten both compression nuts.
5. Tighten each nut a further half to one turn with a spanner while holding the valve body still.
6. Restore the water supply and check every joint for leaks with the valve both open and closed.