PPSU Press reducing coupling KAN-therm 26 mm to 16 mm

PPSU Press reducing coupling KAN-therm 26 mm to 16 mm is a press-fit adapter engineered to join pipes of different diameters in potable water and heating systems. Made from polyphenylsulfone (PPSU), the coupling combines chemical and thermal resistance with dimensional stability to provide a durable, corrosion-resistant connection between a 26 mm line and a 16 mm line. The product is intended for installation with compatible press tools and fittings and is suitable for both residential and commercial plumbing and HVAC applications where a secure, leak-free reduction is required.

Advantages

The PPSU construction offers high resistance to hydrolysis, chemicals and elevated temperatures, ensuring long-term performance in potable water and heating circuits. The press-fit design enables fast, consistent joints without soldering or threading, reducing installation time and the risk of human error. Corrosion resistance and dimensional stability minimize maintenance needs, while the compact reducing profile allows flexible routing and space-efficient connections when transitioning from 26 mm to 16 mm pipework.

Suitable for

• Reduction of pipe diameter from 26 mm to 16 mm in potable water systems
• Reduction of pipe diameter from 26 mm to 16 mm in heating circuits and radiator connections
• Domestic and commercial plumbing installations requiring press-fit joining
• HVAC installations where space-efficient reductions are needed

Key specifications

• Material: PPSU (polyphenylsulfone)
• Connection type: press-fit coupling
• Input diameter: 26 mm
• Output diameter: 16 mm
• Application media: potable water and heating fluids
• Operating temperature: suitable for typical domestic and commercial hot water and heating temperatures (refer to system design limits)

How to use

Prepare pipes by cutting square and deburring the pipe ends. Mark insertion depth on both the 26 mm and 16 mm pipes according to the coupling’s guidance. Insert the pipes fully into the corresponding ends of the coupling and perform the press operation using a compatible press tool and jaw sized for the coupling. Verify the press quality visually and, where applicable, with a press monitoring system. After pressing, perform a pressure test of the system according to applicable regulations and project requirements to confirm the joint integrity.

Usage recommendations

For reliable performance, use the coupling only with compatible KAN-therm or approved press fittings and tooling, follow manufacturer instructions for insertion depth and press parameters, and conduct pressure testing after installation. Avoid exposing the coupling to aggressive chemicals or conditions outside typical potable water and heating system temperature ranges.