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The Primaflow QS Service Angle Valve is an essential component for professional plumbers and DIY enthusiasts alike who require reliable, WRAS-approved water flow control in residential or commercial plumbing systems. Its primary benefit is the ability to facilitate quick, localized shut-off for maintenance or repairs without draining the entire system, though users should note that its angle configuration is specifically intended for directional pipe transitions rather than inline applications.
| Model Part Number | 845187 |
|---|---|
| Brand | Primaflow |
Yes, it is suitable for isolating individual components within heating systems provided it remains within pressure and temperature limits.
Compression joints seal using the olive and nut; PTFE tape is generally not required on the compression side, but may be used on the threaded 1/2 inch connection.
The angle design allows for a 90-degree change in direction, making it ideal for connecting wall-fed pipes to fixtures.
Yes, the valve is constructed from materials suitable for both hot and cold water plumbing applications.
It means the product has been tested to meet the Water Regulations Advisory Scheme standards, confirming it does not contaminate water supplies.
Ensure the pipe is cut squarely and the olive is seated correctly; tighten the compression nut slightly further but avoid excessive force.
Check for limescale buildup around the stem; operate the handle periodically to keep the internal seal loose and functional.
Confirm the valve has been rotated fully to the closed position; if flow persists, the internal seal may be compromised and the valve should be inspected or replaced.
To install, ensure the 15mm copper pipe is cut square and free of burrs to prevent damage to the internal olive. Use two spanners during installation: one to hold the valve body and another to tighten the compression nut. Do not overtighten, as this can deform the olive and cause leaks. This valve is compatible with standard 15mm copper tubing and 1/2 inch threaded connections. For maintenance, periodically turn the valve handle to ensure it remains free-moving and does not seize due to limescale accumulation in hard water areas.
