Best current price£8.12from eBay
Shopping.co.uk recommended and popular offers
eBay£8.12Visit shop Primaflow Self Cutting Draw Off Cock 15mm - SCDOC2
Visit shop
B&Q£9.18Visit shop B&Q - Brass Self Cutting Draw Off Valve 15mm
Visit shop3 offers from £8.12 - £9.18
View price history by clicking the chart icon.
The Primaflow Self Cutting Draw Off Valve is an essential tool for heating engineers and DIY enthusiasts who need a reliable way to drain water from heating systems or specific pipe segments. Its primary benefit is the ability to facilitate efficient system maintenance and quick drainage at the lowest point of a pipe run, though users should be aware that proper pipe preparation is critical to ensure the self-cutting mechanism creates a secure seal without leaks.
| Model Part Number | SCDOC2 |
|---|---|
| Brand | Primaflow |
No, this valve is designed exclusively for 15mm rigid copper pipework.
The self-cutting feature allows installation while the system is under pressure, but it is recommended to reduce pressure to minimize water spray during the piercing process.
The valve is designed to stay in place as a permanent drain point for the life of the system.
You will need a set of adjustable spanners or pipe wrenches to tighten the compression nuts.
Yes, it can be installed on horizontal or vertical pipe runs, provided there is enough clearance to operate the handle and attach a drain hose.
Tighten the nut slightly with a wrench. If it continues, ensure the olive is seated correctly and the pipe end is not deformed.
Ensure you are using the correct 15mm copper pipe size; the valve will not seat properly on undersized or oversized tubing.
To install, ensure the pipe surface is clean and free of paint or debris. Slide the nut and olive onto the pipe, position the valve body, and tighten the compression nut securely until the seal is formed. Compatibility is restricted to 15mm rigid copper pipes; do not attempt to use this on PEX, PB, or other plastic piping. For ongoing care, periodically check the compression nut for signs of seepage after usage and keep the outlet cap tightened when not in use to prevent accidental leaks.
