Pipe fitting Detal-met SRGZ20X1/2 — PP connector 20 mm to 1/2" external thread

Detal-met SRGZ20X1/2 is a polypropylene (PP) pipe fitting designed to connect 20 mm plastic pipes to a 1/2" external threaded metal or plastic component. The connector creates a sealed transition between plastic piping and threaded fixtures, allowing integration of plastic lines with valves, taps or other threaded elements. It is intended for water supply, heating circuits and repair tasks in residential or light-commercial installations where a 20 mm to 1/2" threaded interface is required.

Advantages

The connector is made of corrosion-resistant polypropylene that resists chemical degradation and scaling. Its compact form factor and standardized thread ensure compatibility with common 1/2" threaded fittings while the socket for 20 mm pipe provides a secure fit for plastic piping. The design reduces the need for additional adapters, simplifies installation and provides reliable sealing when installed with appropriate thread sealant or PTFE tape.

Suitable for

• Connecting 20 mm plastic pipes to 1/2" threaded taps and valves
• Domestic water supply and distribution
• Small heating circuit connections and repairs
• Renovation and maintenance tasks in apartments and light-commercial buildings

Key specifications

• Material: polypropylene (PP)
• Pipe connection size: 20 mm (socket for plastic pipe)
• Thread type: external 1/2" (standard pipe thread)
• Typical applications: cold and warm water supply, heating circuits
• Construction: single-piece molded connector suitable for solvent or mechanical pipe joining methods

How to use

Prepare the 20 mm plastic pipe by cutting it square, deburring and cleaning the end to ensure a smooth, contaminant-free surface. Insert the pipe into the 20 mm socket and secure it according to the plastic pipe system’s recommended joining method (for example, solvent welding, electrofusion or push-fit, depending on the specific system compatibility). Apply appropriate thread sealant or PTFE tape to the external 1/2" thread before tightening the connector into the mating fitting to ensure a watertight connection. Avoid excessive torque on the plastic body; tighten to manufacturer-recommended values or until a secure, leak-free joint is achieved.

Usage recommendations

Use the connector within the recommended temperature and pressure limits of the pipe system and avoid direct exposure to open flame or prolonged UV radiation. When joining to metal fittings, ensure thread compatibility and use compatible sealants. For potable water installations follow local plumbing codes and standards.