How do I open and close a John Guest® push-fit connection?
The John Guest® quick couplings and connectors ensure a permanent, secure and tight connection between the tube and the connecting element. Thanks to various conversion options, existing tube systems can be modified or upgraded without any problems.
The John Guest® connector consists of the connector body, retaining elements with stainless steel teeth and NBR O-rings to seal. You can both assemble and disassemble the connector without using tools. The connection holds before it seals!
Establishing the connection
Make sure that the tube is cut square and free of burrs. The tube must also not have any sharp edges, longitudinal grooves or other damage.
Insert the tube into the retaining element of the John Guest® connector as far as it will go. The retaining element fixes the tube inside the connector. The O-ring creates a permanently tight connection.
Check then connection
Check that the tube is securely inserted in the John Guest® connector by pulling against it. The tube must be firmly anchored in the retaining element and must not come loose.
Disconnect the connection
If you want to disconnect the John Guest® quick couplings and connectors, make sure that your water filter is depressurised.
Press the tube with the retaining element into the connector body, hold the retaining element and pull the tube out of the retaining element.
John Guest® accessories
Using the John Guest® Tensioning and Release Aid, you apply uniformly high pressure to the retaining element of the John Guest® quick couplings and connectors, making them easier to tension and release.
The John Guest® tube cutter allows you to cut the tubes of your water filters straight and square without burrs.
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