Transition fitting Unidelta 601520 — PE to 1/2" male thread, 20 mm PE pipe x 1/2" GZ

Unidelta 601520 is a transition fitting designed to connect 20 mm polyethylene (PE) pipe to a 1/2" male (GZ) threaded component. Intended for use in plumbing and heating systems, this fitting creates a reliable junction between flexible PE pipework and standard metal-threaded valves, taps, or accessories. Its construction supports potable water distribution and general fluid conveyance where a PE-to-thread interface is required.

Advantages

The fitting provides a secure mechanical connection between PE pipe and 1/2" male threads while maintaining flow integrity and resistance to leakage when installed correctly. Its design allows straightforward installation with common plumbing tools and creates a compact transition that minimizes space usage. Materials and geometry are selected to be compatible with standard PE piping and threaded components in domestic and light commercial systems.

Suitable for

• Connecting 20 mm PE water supply pipe to 1/2" threaded valves and fixtures
• Domestic and small commercial potable water distribution
• Repairing or adapting existing systems from plastic pipework to threaded metal fittings
• Heating circuits and secondary cold-water branches requiring a PE-to-thread junction

Key specifications

• Pipe connection diameter: 20 mm for polyethylene (PE) pipe
• Thread type and size: 1/2" male (GZ) thread
• Function: PE-to-thread transition fitting for fluid conveyance
• Application: potable water and general fluid systems
• Typical installation environment: indoor plumbing and heating installations

How to use

Prepare the 20 mm PE pipe by cutting it square and deburring the end. Slide any required compression components or sleeves onto the PE pipe according to the fitting manufacturer’s fitting method, then insert the pipe fully into the fitting until it seats. Tighten the threaded 1/2" male connection to the mating female thread using an appropriate wrench, taking care not to over-torque. Follow standard pipe preparation and sealing practices for threaded joints (for example, use of approved sealing tape or paste on the other threaded mating surface if required).

Usage recommendations

Install and tighten connections following applicable plumbing standards and manufacturer guidance. Use compatible PE pipe rated for the intended service (pressure and temperature) and ensure that threaded mating components are in good condition. Periodically inspect the joint for signs of wear, leakage or mechanical strain, especially after system pressure changes or thermal cycling.