Compression union Comap 3/4E-15z with flexible ring, nickel-plated (MPN 835915)

Comap compression union 3/4E-15z with flexible ring, nickel-plated is a mechanical pipe fitting intended to join compatible 3/4-inch plumbing and heating pipes or fittings. The nickel-plated surface provides corrosion resistance and a smooth finish, while the integrated flexible sealing ring ensures a tight, leak-resistant connection that can be disassembled for maintenance or reconfiguration. The compact design is suitable for confined installation spaces and for systems where a reliable compression joint is required without soldering or threading.

Advantages

The compression union creates a secure, pressure-resistant joint using a flexible sealing ring that adapts to minor surface irregularities, reducing the risk of leaks. Nickel plating enhances durability and resistance to corrosion in domestic and light commercial installations. The union supports quick installation and later disassembly, enabling maintenance or replacement without extensive pipework alterations. Its mechanical joining principle eliminates the need for heat-based joining methods, making it suitable for installations where open flame or soldering is undesirable.

Suitable for

• Connecting compatible 3/4-inch plumbing and heating pipes
• Situations requiring periodic disassembly or maintenance
• Installations in tight or confined spaces
• Systems where soldering or threaded joints are impractical

Key specifications

• Connection size: 3/4-inch compatible
• Type: compression union with flexible sealing ring
• Finish: nickel-plated surface for improved corrosion resistance
• Material: metal body with elastomeric sealing ring
• Application: potable water, heating and general plumbing systems (subject to local regulations)

How to use

Ensure pipe ends are cut square, deburred and clean before assembly. Slide the union components onto the pipes, position the flexible sealing ring between the body and the ferrule, then tighten the compression nut until the joint feels secure and leak-free. Follow recommended torque or hand-tightening guidance from the system designer or local practice to avoid over-tightening. After assembly, pressurize the system and inspect the joint for leaks. If disassembly is required, release the compression nut and remove the union components for access or replacement.

Usage recommendations

Use only with compatible pipe materials and dimensions; verify material compatibility for the transported medium and follow local plumbing codes. For permanent or high-temperature applications, confirm suitability of the sealing ring material. Periodically inspect visible joints for signs of corrosion or leakage and retighten or replace components as needed.