Perfexim pressure pipe fitting nipple 16 x 3/4 (type U) for press connection, model 731

Perfexim pressure pipe fitting nipple 16 x 3/4 (type U) for press connection, model 731 is a metal press-fit adapter designed to join 16 mm tubing with a 3/4" threaded connection. The component provides a compact transition between press-fit systems and threaded appliances or valves. It is manufactured for press installation and is intended for use in potable water and heating networks where a reliable pressed joint and a threaded outlet are required.

Advantages

This press nipple offers a durable metal construction that withstands common operating pressures in domestic water and heating installations. The press-compatible design ensures a secure, leak-resistant connection when installed with suitable press tools and jaws. Its compact shape reduces space requirements at connection points and simplifies the transition from press-fit piping to a 3/4" threaded fitting without additional adapters.

Suitable for

• Connecting 16 mm copper or suitable press-fit tubing to devices with a 3/4" threaded inlet or outlet
• Domestic potable water systems
• Hot water heating circuits and radiator connections
• Repair or retrofit work where a compact threaded-to-tube adapter is needed

Key specifications

• Material: metal press-fit construction suitable for plumbing and heating use
• Tube connection size: 16 mm press-fit
• Threaded connection size: 3/4" (female/male as applicable to the threaded end)
• Connection type: press-fit to threaded transition (type U nipple)
• Intended media: potable water and heating fluids

How to use

Insert the 16 mm tube fully into the press end of the nipple, ensuring the pipe is cut squarely and deburred. Position the appropriate press jaw around the fitting according to the press tool manufacturer's guidelines and perform a single secure press to form the joint. Thread the 3/4" end to the receiving fitting or device, using suitable sealing tape or sealant on the threads if required by the application. Verify the pressed joint visually and, where applicable, pressure test the system following local standards.

Usage recommendations

Use compatible press tools and jaws sized for 16 mm press fittings and follow the tool and fitting manufacturer instructions. Ensure materials joined are approved for potable water if used for drinking water systems. For installations in heating circuits, allow for thermal expansion and verify compatibility with system pressures and temperatures.