A detachable coupling is generally a double-flanged fitting that allows for longitudinal adjustment in flanged pipework systems, whilst providing longitudinal restraint.
They are an essential aid during the installation and removal of pipe sections and valves. For dismantling, the reverse sequence is used, whereby readjusting the length of the detachable coupling creates sufficient space to loosen and remove the valve.
The range of detachable couplings includes bodies with integrated flanges and prefabricated telescopic models.