John Guest Speedfit Plastic Service Valve 22mm - 22Sv
The John Guest Speedfit Plastic Service Valve is designed for connecting plastic or copper pipe. W...The John Guest Speedfit Plastic Service Valve is designed for connecting plastic or copper pipe. With a 1/4 turn screwdriver slot, this valve allows you to isolate the flow of water to a fixture or appliance, which is useful in emergencies or for maintenance. It can also be rotated in place to prevent tampering. Installation is simple: just push the valve fully onto the pipe. To disconnect, push the collet towards the body of the push-fit fitting and pull the pipe release. This service valve is up to 40% faster to install than traditional methods and is easier to use in tight spaces as it doesn't require hot works or tools. It is designed, manufactured, and assembled in the UK. Key features include an instant push-fit design, a 1/4 turn isolation screwdriver slot, and a Grip & Seal collet with stainless steel teeth and a main O-Ring seal. It is compatible with Speedfit PEX and polybutylene plastic pipe (inserts required) and copper pipe. This valve is suitable for hot and cold water but not for central heating.
The John Guest Speedfit Plastic Service Valve (22mm - 22Sv) is designed for plumbers and DIY enthusiasts needing to easily isolate water flow to fixtures or appliances connected via plastic or copper pipe. Its key benefit is a rapid, tool-free push-fit installation that significantly speeds up work, especially in confined spaces. A potential caveat is its suitability for hot and cold water only, not for central heating systems. This valve offers a quarter-turn isolation mechanism and a tamper-preventing rotation feature, simplifying maintenance and emergency shut-offs.
All features
Model Part Number
22Sv
Brand
John Guest
Extended Product Information
FAQs
What size pipe is this valve for?
This John Guest Speedfit valve is designed for 22mm pipe, compatible with both plastic (PEX, polybutylene) and copper pipes.
Can this valve be used in a central heating system?
No, this service valve is designed for hot and cold water applications only and is not suitable for use in central heating systems.
How do I install the valve?
Installation is a simple push-fit. Ensure the pipe end is clean and square, insert any necessary pipe inserts for plastic pipe, and push the valve firmly onto the pipe until fully seated. No tools are required for connection.
How do I turn off the water with this valve?
Turn the screwdriver slot a quarter turn (90 degrees) to isolate the water flow. Turn it back to the original position to restore flow.
How do I remove the valve from the pipe?
Push the blue collet towards the body of the fitting and pull the pipe release.
Does it require any special tools?
No, the push-fit design means no special tools, hot works, or pipe preparation beyond ensuring a clean, square cut are required for installation.
What makes the installation faster?
The instant push-fit connection eliminates the need for soldering, crimping, or compression fittings, making installation up to 40% faster than traditional methods.
Troubleshooting
Valve leaks after installation
Ensure the pipe was pushed fully into the valve and that the pipe end was cut square and is free from damage. Check that the correct pipe insert is used for plastic pipes. Re-seat the valve on the pipe.
Difficulty pushing pipe into the valve
Ensure the pipe end is clean, dry, and cut squarely. The O-ring inside the valve may be stiff; try wiggling the pipe gently as you push. Ensure no debris is inside the fitting.
Valve is stiff to turn (1/4 turn)
Ensure the valve is fully connected to the pipe. If it remains stiff, it might indicate an internal issue; consider replacing the valve.
Pipe will not release from the valve
Ensure you are pushing the blue collet firmly towards the body of the fitting while simultaneously pulling the pipe. If stuck, try rotating the pipe slightly while pulling.
Pros and Cons
Pros
Extremely fast and easy installation.
No special tools or hot works required.
Compact design for use in confined spaces.
Provides reliable water isolation.
Reduces installation time significantly.
Secure grip and seal mechanism.
Cons
Not suitable for central heating systems.
Requires specific John Guest Speedfit pipe types.
Tamper-proof feature requires a screwdriver for operation.
Setup, Compatibility & Care
Setup:
Ensure the pipe end is clean, free from debris, and cut squarely.
If using plastic pipe, ensure the correct Speedfit PEX or polybutylene insert is fitted.
Push the valve firmly and fully onto the pipe until it is fully home.
Compatibility:
Compatible with John Guest Speedfit PEX and polybutylene plastic pipe (requires inserts).
Compatible with 22mm copper pipe.
Suitable for hot and cold water applications.
Not suitable for central heating systems.
Care:
No routine maintenance is required. Periodically check for visible signs of damage or leaks.
To disconnect, push the blue collet towards the body of the fitting and pull the pipe out.
Clean the exterior with a damp cloth if necessary. Avoid abrasive cleaners.