Perfexim screw-fitting coupling 703, 20 mm, model 61-003-0200-000

The Perfexim screw-fitting coupling 703, 20 mm is a mechanical connector designed to join two sections of pipe or a pipe to a fitting using a threaded screw-on connection. Intended for plumbing, heating and general fluid installations, this compact coupling creates a reusable joint that allows straightforward repair, extension or reconfiguration of existing pipeline runs where a 20 mm diameter connection is required.

Advantages

The coupling offers a compact form factor and a screw-on assembly that eliminates the need for soldering or solvent welding. Its reusable threaded joint allows disassembly and reassembly for maintenance or system changes. Designed for common residential and light-commercial applications, the part provides reliable mechanical connection and consistent alignment of 20 mm tubing or fittings.

Suitable for

• Joining 20 mm copper, plastic or mixed-material pipe runs
• Repairing leaks or damaged sections in domestic plumbing
• Extending or reconfiguring heating and radiator connections
• Temporary or permanent mechanical connections in fluid installations

Key specifications

• Connection type: screw-fitting, threaded coupling
• Nominal diameter: 20 mm
• Usage: mechanical pipe joint for plumbing and heating systems
• Reusability: designed for disassembly and reassembly
• Form factor: compact inline coupling

How to use

Prepare pipe ends by ensuring they are clean, straight and free of burrs. Thread the coupling onto the prepared pipe ends according to the product’s thread type and tighten by hand first, then finish with an appropriate wrench to achieve a secure joint without over-tightening. If joining dissimilar materials, verify compatibility and, if required, use suitable sealing tape or approved joint sealant compatible with the system’s medium and operating conditions. After assembly, inspect the joint for alignment and perform a pressure or leak test appropriate for the installation.

Usage recommendations

Use the coupling in systems within the manufacturer's specified pressure and temperature limits and check material compatibility when joining different pipe types. For permanent installations in potable water systems follow local plumbing codes and use approved sealing methods where required. When in doubt, consult a qualified installer to ensure correct selection and installation.