Reducing coupling K5 internal/external thread water PN10 25/16 3079760

Pipe diameter reduction in water and heating installations

The K5 C/Z reducing coupling is a reliable solution for connecting pipes of different diameters in potable water and central heating systems. Made of high-quality polyphenylene sulfone (PPSU), it provides durability and corrosion resistance, as well as high flow parameters. Designed for radial pressing technology, it guarantees tight and secure connections.

Durability and reliability in every respect

The coupling is based on PPSU, a material characterized by exceptional chemical and mechanical resistance. This makes the coupling resistant to deposits, high temperatures (up to 100°C for short periods) and stress cracking. In addition, the use of lead-free DZR brass in the threaded fitting reinforcements ensures the highest quality of drinking water and compliance with PZH standards. The coupling has KIWA certification and a DVGW quality mark for water, confirming its safety and reliability.

• Corrosion and deposit resistance: PPSU minimizes the risk of scale and corrosion, ensuring long-term installation performance.
• High working temperature: Continuous operation in the range of 0-70°C and short-term exposure to 100°C make the coupling suitable for various applications.
• Connection tightness: Radial pressing technology combined with EPDM rubber seals guarantees complete tightness and no leaks.
• Safety for health: Lead-free DZR brass ensures the highest quality of drinking water, eliminating the risk of lead contamination.
• Versatility: The coupling is suitable for potable water installations and central heating systems.

The K5 C/Z reducing coupling is compatible with pipes with outer diameters of 25 mm (DN 20) and 16 mm (DN 12). It has a support collar that further stabilizes the connection and prevents the pipes from shifting. The working length of the connections is 10 mm on both sides, which facilitates assembly and ensures precise fit. The maximum working pressure is 10 bar at a temperature of up to 70°C.