Compression Coupling WAVIN TIGRIS K1 20 mm (1/2") PN10 PPSU 3241036529

WAVIN TIGRIS K1 compression coupling for 20 mm (1/2") pipes is a compact PPSU connector designed to create a pressure-tight joint in plastic plumbing and heating systems. Rated PN10, the coupling provides a durable sealed connection for potable water and low-pressure heating circuits. Its push-fit/compression design allows joining plain-ended plastic pipes without adhesive or heat, making it suitable for repair, extension, or new installations where a compact, serviceable connection is required.

Advantages

The coupling is manufactured from PPSU, a material known for mechanical strength and resistance to chemical attack and hot water, which supports long-term reliability in domestic plumbing. Its compression-style fitting ensures a secure seal and straightforward installation without special tools. The compact form factor and PN10 pressure rating make it compatible with many residential water and heating applications, while the design allows for disassembly or replacement if maintenance is needed.

Suitable for

• Joining 20 mm (1/2") plastic potable water pipes
• Extending or repairing domestic heating and hot water circuits
• Professional and DIY plumbing installations requiring a compact compression joint
• Applications where a PN10-rated connector is acceptable

Key specifications

• Connection type: compression/push-fit
• Pipe size compatibility: 20 mm (1/2")
• Material: PPSU (polyphenylsulfone)
• Pressure rating: PN10
• Suitable media: potable water and heating fluids
• Design: compact, serviceable coupling for plain-ended plastic pipes

How to use

Prepare pipe ends by cutting square and deburring to ensure a clean sealing surface. Slide the compression nut and sealing components onto the pipe if they are supplied separately, then insert the pipe fully into the coupling until it reaches the internal stop. Tighten the compression nut by hand and, if specified by installation practice, use an appropriate wrench to secure the connection without over-tightening. Verify the joint for leaks by pressurizing the system and visually inspecting the connection.

Usage recommendations

Use with compatible plastic pipe types and sizes only; do not use on damaged or excessively deformed pipes. Follow local plumbing codes and pressure/temperature limits for PN10 fittings. For installations carrying potable water, ensure all components and installation methods comply with local drinking water regulations. If in doubt, consult manufacturer installation instructions or a qualified installer.