Comap transitional nipple 1/2 x 3/4" Euro for manifold 9800 with O-ring

The Comap transitional nipple 1/2 x 3/4" Euro for manifold 9800 with O-ring is a mechanical adapter designed to connect Euro-threaded components to the 9800 manifold. It provides a compact transition between differing thread sizes and includes an integrated elastomer O-ring to ensure a watertight seal. The part is intended for use in heating and plumbing systems where a secure, sealed connection between Euro fittings and the manifold is required.

Advantages

The integrated O-ring simplifies installation by eliminating the need for separate sealing materials and reduces the risk of leaks at the joint. Its compact form factor and standardised thread sizes make it compatible with common Euro fittings and the 9800 manifold, supporting reliable mechanical connection while saving space. The transitional nipple is made for routine plumbing and heating applications where durability and consistent sealing performance are needed.

Suitable for

• Adapting Euro-threaded valves or fittings to the 9800 manifold
• Heating system pipework requiring a 1/2" to 3/4" transition
• Plumbing repairs or retrofits involving mixed thread standards
• Manifold installations where a compact sealed connection is needed

Key specifications

• Connection sizes: 1/2" x 3/4" (Euro thread)
• Includes integrated elastomer O-ring for sealing
• Designed for use with 9800 series manifold
• Application: heating and plumbing installations
• Compact, inline transitional adapter design

How to use

Ensure both mating threads are clean and free of debris before installation. Screw the transitional nipple into the manifold thread until hand-tight, then use appropriate tools to apply the recommended final torque without over-tightening. Mount the Euro fitting on the opposite end in the same manner, ensuring the O-ring seats correctly to form a watertight seal. After assembly, pressurise the system and inspect the connection for leaks; if required, tighten slightly to correct minor seepage, taking care not to damage the O-ring.

Usage recommendations

Use compatible Euro fittings and avoid excessive torque to preserve the O-ring integrity. Inspect the O-ring periodically during maintenance and replace the transitional nipple if the seal shows signs of wear, cracks, or persistent leakage. Follow system pressure and temperature limits appropriate for the heating or plumbing installation.