Double Male-Male PVC-U nipple to be screwed in PN16: The high-pressure threaded connection

The double threaded PVC-U nipple is the essential junction connection for connecting two threaded elements (females) on the same axis. Designed to provide a rigid and secure connection under pressure, this screw-in male-to-male (MM) model is certified to withstand a pressure rating of 16 bar (PN16). It is the ideal solution for coupling valves, union fittings or equipment outlets while maintaining the modularity of a demountable installation.

A robust junction for demanding hydraulic networks

The construction of this nipple in PVC-U (unplasticized polyvinyl chloride) guarantees excellent dimensional stability and increased resistance to mechanical stress. Its PN16 certification makes it suitable for professional pumping and water treatment installations. Unlike glue-on joints, the screw-in nipple allows you to structure your network in a scalable way, making it easier to replace components without having to saw the pipes or empty the entire circuit.

Versatility of Gas Thread (BSP) and Chemical Resistance

The screw-in double male nipple is particularly popular for its ability to act as a bridge between different components of the network:

• Direct Interconnect: Allows two female valves, two sleeves, or to connect directly to a pump housing.

• Anti-corrosion resistance: Completely insensitive to limescale, oxidation and chemicals (chlorine, fertilizer), it offers a much longer life than galvanized steel or brass nipples in humid environments.

• Optimized flow: Its smooth internal design reduces pressure drops and prevents progressive fouling of the water passage.

Installation and professional sealing advice

To ensure a leak-free PN16 performance, the installation of this male nipple must be carried out with care on the threaded parts:

1. Preparation of the threads: Fill the two outer threads generously with PTFE (Teflon) tape or a plastic-specific sealing thread.

2. Initial Screwing: Engage the nipple by hand in the female thread to ensure proper thread alignment and avoid cross-threading.

3. Final tightening: The nipple usually has a hexagonal or octagonal central part that makes it easier to grip. Use a strap wrench or a suitable open-end wrench to finalize the tightening without excessive force, so as not to weaken the threads of the PVC.

Areas of application: Swimming pool, Watering and Industry

This male-male nipple is a standard for the assembly of suction and discharge manifolds in swimming pool technical rooms. In the agricultural sector, it allows the quick connection of screen filters and valves to irrigation booms. Its sanitary neutrality and structural robustness also allow it to be integrated into drinking water distribution networks and industrial plants conveying aggressive process fluids.

Technical characteristics