Coupling sleeve Detal-met Mufa PP 40 mm with threaded outlet 5/4"

Detal-met Mufa PP 40 mm with threaded outlet 5/4" is a polypropylene coupling sleeve designed to join 40 mm plastic pipes and provide a built-in 5/4" threaded connection. The coupling integrates a smooth sleeve socket for solvent or mechanical jointing of PE/PP piping and a molded threaded outlet to connect valves, appliances or adapters. The PP material ensures chemical resistance and long-term corrosion-free performance in drainage and plumbing systems.

Advantages

The polypropylene construction provides resistance to many chemicals and does not corrode, reducing maintenance needs in wet environments. The integrated 5/4" threaded outlet eliminates the need for additional adaptors in many installations and enables a secure mechanical connection to threaded fittings. Compact design and lightweight construction make the coupling easy to handle and position during pipe assembly.

Suitable for

• Joining 40 mm plastic drain or waste pipes
• Connecting plastic pipelines to fixtures, valves or appliances with a 5/4" thread
• Plumbing and sanitary drainage systems in residential and light commercial buildings
• Repair and retrofit work where a threaded outlet is required

Key specifications

• Material: polypropylene (PP)
• Socket (pipe) diameter: 40 mm
• Threaded outlet size: 5/4" (internal/outlet thread)
• Connection type: socket coupling with integrated threaded outlet
• Application: drainage and plumbing systems

How to use

Prepare pipe ends by cutting square and deburring to ensure full insertion into the 40 mm socket. For solvent or heat-fusion joining follow the pipe and adhesive manufacturer's instructions; for mechanical fittings, ensure a secure, leak-tight fit using compatible seals or tape on the threaded outlet. After assembly, test the connection under operating conditions to confirm there are no leaks and that the threaded interface is correctly sealed.

Usage recommendations

Use compatible polypropylene or polyethylene piping and appropriate joining methods for the socket connection. Apply thread sealant or PTFE tape to the 5/4" threaded outlet where required by the installation to ensure leak-free performance. Avoid exposing the coupling to temperatures or chemicals outside the material specifications of standard PP piping.