Primaflow QQE Isolating Valve - 22mm
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Product Information
Full details
The Primaflow QQE Isolating Valve is an essential component for plumbers and homeowners who require a reliable method to control water flow to specific appliances or zones. It offers the key benefit of enabling maintenance and repairs without shutting off the main water supply to an entire building, though users should ensure they have the appropriate tools for a secure, leak-proof compression fitting connection.
All features
| Model Part Number | 961708 |
|---|---|
| Brand | Primaflow |
Extended Product Information
FAQs
Is this valve suitable for central heating systems?
Yes, it is suitable for isolating branches in central heating systems and hot/cold water supply lines.
Does it require special tools for installation?
No, it requires standard plumbing tools such as two adjustable spanners for tightening compression nuts.
What does WRAS approved mean?
It means the product has been tested and verified to comply with the Water Supply (Water Fittings) Regulations in the UK.
Can this valve be used on plastic pipe?
You must use a dedicated pipe insert (stiffener) inside the plastic pipe if using compression fittings to prevent the pipe from collapsing.
How do I know if the valve is fully closed?
When the slot on the valve head is perpendicular to the pipe flow, the valve is closed.
Troubleshooting
Leakage from the compression nut
Tighten the nut slightly more with a spanner. If it continues to leak, inspect the olive for deformities and replace if necessary.
Valve handle is difficult to turn
Mineral deposits may have accumulated. Apply a small amount of plumbers grease to the stem and gently work the valve back and forth to loosen it.
Pros and Cons
Pros
- WRAS approved for regulatory compliance
- Easy to install with standard compression fittings
- Compact form factor fits in tight plumbing voids
- Robust construction for long service life
Cons
- Requires proper tightening to prevent compression leaks
- Not intended for high-pressure industrial steam applications
- Needs accessible placement for future isolation access
Setup, Compatibility & Care
To install the Primaflow QQE Isolating Valve, ensure your 22mm copper pipe ends are clean, burr-free, and perfectly round. Slide the compression nut and olive onto the pipe before inserting the pipe into the valve body. Tighten the nut by hand, then use an adjustable spanner to tighten it by an additional half to three-quarters of a turn. Avoid overtightening, as this can damage the olive. For maintenance, periodically operate the valve (turn it off and on) once every six months to prevent mineral deposit buildup, which can cause the internal mechanism to seize over time.