External spring for 20 mm multilayer pipe, use with pressing machine, grey

External spring for 20 mm multilayer pipe, use with crimping machine, grey is a plumbing accessory compatible with drinking water. This external spring is designed for multi-profile crimping (TH, H, U) and requires the use of a crimping machine for the connections. In addition, it has a ring with an anti-contact system to protect against the phenomenon of electrolysis. This pack includes 5 units of the external spring.

Product Features:

• Compatible for Drinking Water.


• CSTB Technical Council | Class 2 | Class 4 | Class 5 for Hot Water, Cold Water and Heating Networks.


• Multi-profile crimping (TH, H, U) for use with the most sold crimping tools on the market.


• Universal accessory for plumbing installations. Pressing machine required for connections.


• Ring with anti-contact system to ensure protection against the phenomenon of electrolysis (resulting from contact between the aluminium layer of the tube and the brass body of the fitting).


• Pack of 5 units.

Frequently Asked Questions:

Is the 20mm Multilayer Pipe Outer Spring
compatible with all brands of pipes? Yes, this outer spring is compatible with most brands of pipes available on the market.

Is it necessary to use a crimping machine for connections with this outer spring?
Yes, it is recommended to use a crimping machine to ensure secure and long lasting connections.

Does the anti-contact ring really protect against electrolysis?
Yes, the anti-contact ring is designed to prevent the phenomenon of electrolysis and ensure the durability of the connections.

Is this 5-pack sufficient for a complete installation?
It will depend on the specific needs of your installation, but generally a 5-pack is adequate for medium-sized projects.

Are there any special precautions that should be taken when using this outdoor dock?
It is recommended that the manufacturer's instructions be followed and the appropriate tools used be used to ensure safe and effective use of the outdoor dock.