Female-Female PVC-U screw-in sleeve PN16: The high-pressure straight junction

The straight threaded PVC-U sleeve is the essential connection for connecting two male pipe elements on the same axis. Designed to guarantee perfect continuity of the flow under pressure, this screw-in female-female (FF) model is certified to withstand a nominal pressure of 16 bar (PN16). It offers a robust, secure and, above all, dismountable connection solution, ideal for network extensions or the maintenance of complex hydraulic installations.

A structural link for demanding networks

The design of this sleeve is made of PVC-U (unplasticized polyvinyl chloride) and ensures maximum rigidity and resistance to mechanical stress due to pressure. Its PN16 certification makes it suitable for professional pumping, water distribution and fluid treatment installations. Unlike glue-on sleeves, the screw-on version allows you to create strategic breaking points in your network, facilitating technical access without having to cut the pipework.

Modularity and versatility of gas tapping (BSP)

The screw-on female-female sleeve is particularly appreciated for its ability to serve as an interface between different materials or equipment:

• Simplified interconnection: Allows you to connect two threaded tubes, nipples, or connect a valve to a tank.

• Chemical and anti-corrosion resistance: Completely insensitive to limescale, chlorine, fertilizers and oxidation, it outperforms metal sleeves in humid or aggressive environments.

• Disassembly: Essential for systems that require regular cleaning or winterization (such as pool or sprinkler circuits).

Installation and sealing tips

For a perfectly watertight straight connection under 16 bars, the rules of use of plastic plumbing must be respected:

1. Preparing the male thread: Use PTFE tape (Teflon) or plastic-friendly sealing wire to line the outer threads.

2. Alignment: Present the sleeve well in line to start screwing by hand without forcing.

3. Reasoned tightening: PVC-U provides compression sealing. A firm manual tightening followed by a quarter turn with the strap wrench is usually sufficient. Avoid metal claw wrenches that could mark or weaken the body of the fitting.

Areas of application: From swimming pools to industry

This sleeve is a standard for the connection of pool filter units, lift pumps and bladder tanks. In the agricultural sector, it facilitates the assembly of irrigation booms and fertilization systems. Its food neutrality and robustness also allow it to be integrated into industrial processes transporting compatible process fluids or chemicals.

Technical characteristics