Compression reducing coupling Comap 50x4–32x3 for plumbing connections

Compression reducing coupling Comap 50x4–32x3 is a press-fit reducer designed to create a sealed mechanical transition between 50x4 mm and 32x3 mm pipes. Manufactured for use in potable water, heating and general plumbing systems, the coupling provides a compact, non-welded connection that simplifies installation and replacement work. The fitting is suitable for distribution mains, risers and localized repairs where a press connection is required to maintain system integrity.

Advantages

The press-fit design enables fast assembly without the need for welding or extensive hot works, reducing installation time and safety risks. The reducer provides a reliable, leak-resistant joint when installed with compatible press tools and seals. Its compact form allows use in confined spaces and minimizes the added length in pipe runs. Materials and manufacturing tolerances are chosen to ensure mechanical strength and corrosion resistance appropriate for water and heating applications.

Suitable for

• Reducing pipe diameter in potable water distribution lines
• Transitioning between mains and risers in heating systems
• On-site repair work where press connections are required
• Areas with limited access that prohibit welding or soldering

Key specifications

• Connection type: compression / press-fit reducer
• Large pipe dimension: 50 x 4 mm (outer diameter x wall thickness)
• Small pipe dimension: 32 x 3 mm (outer diameter x wall thickness)
• Intended media: potable water and heating fluids
• Typical installation method: press tool with compatible jaw/profile
• Application environment: indoor plumbing and heating systems

How to use

Prepare pipe ends by cutting square and deburring both inner and outer edges. Slide the compression coupling over the larger pipe, align the smaller pipe into the opposite end and verify correct insertion depths according to the manufacturer’s marking. Use the compatible press tool and jaw/profile to perform the press operation at the marked positions, ensuring a complete and even press around the fitting. After pressing, inspect the joint visually and, where applicable, perform a pressure test to confirm the integrity of the connection before returning the system to service.

Usage recommendations

Use only press tools and jaws approved for this type of compression reducing coupling and follow local codes for potable water and heating installations. Verify material compatibility with system fluids and operating temperatures. When performing repairs or conversions, confirm pipe dimensions and wall thicknesses match the reducer specifications to ensure a secure fit and long-term performance.