Couplings - pipe / pipe

This category includes pipe/pipe couplings designed for connecting polyethylene (PE) pipes of the same diameter in plumbing and heating systems. The fittings are suitable for operating pressures up to PN 16 and temperatures ranging from -20 °C to +90 °C. They are commonly used in domestic and industrial water supply, heating circuits, and irrigation systems where reliable, leak-free connections are essential.

Each coupling features a brass body (CW617N, EN 12165) and a clamping ring (CW614N, EN 12164), with NBR and STOP O-rings ensuring a tight seal. The threaded design allows for secure and durable installation, while the materials ensure resistance to corrosion and mechanical stress.

How to choose

• Select the correct size to match the outer diameter of the PE pipes (e.g., 20x20, 25x25, up to 63x63 mm).
• Ensure the fitting is compatible with the PE pipe type and wall thickness in your system.
• Verify that the operating conditions (pressure and temperature) align with the PN 16 and -20 °C to +90 °C specifications.

Frequently asked questions

Can these couplings be used with PE-RT pipes?
Yes, provided the PE-RT pipe dimensions match the coupling size and the operating conditions remain within the specified range.

What sealing materials are used in the coupling?
The coupling uses an NBR O-ring for sealing and a STOP O-ring to prevent over-tightening and damage to the PE pipe.