SiGMA-Li SIGMA LI Kolano wieszak GW 20x1/2 PE-RT (tuleja) plumbing elbow 20x1/2

SiGMA-Li SIGMA LI Kolano wieszak GW 20x1/2 PE-RT (tuleja) is an elbow fitting designed to connect PE-RT polymer pipe to a 1/2" female threaded fitting. Supplied in a sleeve (tuleja) configuration, this plumbing elbow enables a secure mechanical transition between PE-RT tubing and conventional threaded components used in heating and potable water systems. The fitting is intended for use where a 90° change of direction is required and where a reliable joint between polymer piping and metal-threaded fixtures is needed.

Advantages

The sleeve-style elbow provides a compact and robust connection method for PE-RT pipe, reducing the need for additional adapters. It ensures a tight interface to threaded fittings while maintaining the corrosion resistance and flexibility advantages of PE-RT systems. The design supports straightforward assembly and integration into existing heating and potable water networks where threaded components are present.

Suitable for

• Connections between PE-RT pipe and 1/2" female threaded valves or fixtures
• Domestic and commercial heating circuits using PE-RT tubing
• Potable water installations requiring reliable polymer-to-thread transitions
• Tight spaces where a 90° elbow is required to change pipe direction

Key specifications

• Pipe compatibility: PE-RT (polyethylene of raised temperature resistance)
• Connection type: sleeve-to-female thread elbow
• Thread size: 1/2" female
• Nominal pipe size: 20 mm external diameter
• Configuration: 90° elbow
• Application: heating systems and potable water networks

How to use

Prepare the PE-RT pipe by cutting squarely and deburring the end. Insert the prepared pipe into the sleeve until it seats fully according to the sleeve depth, then secure the sleeve connection following the manufacturer's recommended method for mechanical fastening or crimping. Thread the 1/2" female end onto the corresponding male threaded fitting and tighten to the required torque, taking care not to over-tighten polymer components. After assembly, perform a pressure test of the system to verify leak-free performance before commissioning.

Usage recommendations

Use appropriate pipe preparation tools and follow local plumbing regulations. Avoid excessive bending near the elbow; observe the minimum bend radius for PE-RT pipe. Where required, apply suitable sealing material on metal threads and verify compatibility with potable water use. Regularly inspect joints after installation, especially after thermal cycling in heating systems.