3. Fluid transport

3.1 Domestic applications

These applications concern gas distribution in particular, with very different pressure ratings depending on whether the gas is distributed by urban networks at an operating pressure of 28 mbar, in compliance with NF D 36-103 for double-layer pipes or NF D 36-102 for single-layer pipes, or flexible hoses, in compliance with NF M 88-768 for direct connection (without pressure reducer) of propane or butane cylinders.

These are designed for a maximum pressure of 20 bar, corresponding to the maximum...