Best current price£17.01from eBay
Shopping.co.uk recommended and popular offers
eBay£17.01Visit shop 28mm DZR Lockshield Brass Stopcock - FREE Next-Day Delivery
Visit shop
B&Q£19.19Visit shop B&Q - Brass Dzr Lockshield Stopcock 28mm
Visit shop3 offers from £17.01 - £19.19
View price history by clicking the chart icon.
The Primaflow 28mm Lockshield Stopcock is designed for professional plumbers and DIY enthusiasts needing a reliable way to isolate water supplies for system maintenance or repairs. Its primary benefit is the ability to securely shut off specific branches or incoming mains without requiring a full system drain, though users should note that the lockshield design requires a specific flat-head screwdriver or tool to operate rather than a traditional handle.
| Model Part Number | SC285LS 10045300 |
|---|---|
| Brand | Primaflow |
Yes, this unit is supplied as a complete assembly with the necessary nuts and olives for 28mm pipe.
Yes, the Primaflow 28mm Lockshield Stopcock is suitable for both hot and cold water plumbing systems, including heating circuits.
It is called a lockshield because it lacks a standard handle, requiring a tool to adjust it. This makes it ideal for areas where you want to prevent accidental shut-offs.
This fitting is designed for standard domestic water pressure requirements; please consult local building codes for specific pressure ratings in your region.
Yes, it can be installed vertically or horizontally, but ensure the valve is accessible for maintenance tools.
Tighten the compression nut by another quarter turn. If the leak persists, check if the pipe is damaged or if the olive is seated incorrectly.
Ensure you are using a screwdriver that fits the slot perfectly. If it is stuck, apply a small amount of plumber-grade lubricant to the spindle.
To install, first ensure the water supply is isolated elsewhere. Measure and cut your 28mm pipe, ensuring the ends are free from debris. Slide the compression nut and olive onto the pipe, insert the pipe into the stopcock body, and tighten the nut by hand before finishing with a spanner. Do not overtighten, as this can deform the olive. For care, periodically inspect the joint for signs of moisture. If the valve is not used for long periods, perform a partial turn of the lockshield stem to prevent calcium buildup in hard water areas.
