Get that plumbing job done in no time with our quality chrome plated isolator valve. Essential for both DIY and professional plumbers, the 15mm compression joint is ideal for use without using heat or soldering. Easy to fit, the valve resists corrosion and is ideal for stopping the flow of water to the chosen pipe. Directions for use: How to make a compression joint- Isolate the water. Pipe ends must be cut square and deburred. Remove nut (A) and olive (B) from fitting (C) if present. Jointing paste or PTFE tape may be applied to the threads. Slip nut (A) and olive (B) onto the pipe. Push the pipe into the fitting body until it goes no further. Slide nut (A) and olive (B) now on the pipe onto the fitting and tighten the nut by hand. Hold fitting in one spanner and tighten nut half to one full turn with another spanner. Do not over-tighten. Repeat steps 3 to 9 for another end if applicable. Turn on the water and check all joints are watertight.