O-ring - for brass PRESS fittings - 63x4,5

Product detailed description

O-ring - for brass PRESS fittings - 63x4,5

Frequently asked questions

• What tools do I need to install this fitting? Press fittings require specialised pressing pliers with the correct jaw type (commonly labelled B, F or TH depending on the system) matching the size and type of the fitting - without the right tool the joint cannot be made or checked.
• How do I know a joint has been pressed correctly? Quality press fittings have a press indicator (e.g. a sealing O-ring that leaks if the press is incomplete) - before the joint is embedded in a wall or screed, a pressure test of the whole system must always be carried out.
• Can a joint be taken apart after pressing? No, unlike a screwed (compression) fitting, a pressed joint is permanent, and taking it apart means cutting out the fitting and replacing it with a new one.
• Must the installation be done by a professional? Yes, pressing fittings requires professional skill and correctly calibrated tools - we recommend leaving this to a heating engineer/plumber, especially for joints that will be embedded in a wall or screed with no possibility of a later check.