Pipe couplers enhance welding and cutting system safety by simplifying the integration of flashback arresters in copper EN12449 or stainless steel pipes. A new range of Wittfix pipe couplers specifically allow flashback arresters to be integrated into copper EN12449 or stainless steel pipes supplying gases for welding and cutting. These couplers are suitable for gas operating pressures up to 25bar with a male and female version required for each integration.

They are available in a number of different sizes ranging from 6mm diameter pipe to 15m diameter pipe. They are easy to install, just cut the end of the pipe squarely to the required length, clean any burrs or rough edges and place the end of the tube into a pipe coupler and carefully tighten by hand, then mark the end of the coupler nut at the six-o’clock position. Hold the double nipple with a spanner and tighten the nut according to the table in the instructions provided.

The Wittfix pipe installation system uses novel O-ring joint fittings that eliminate the need for silver soldering or welding of joints, reducing installation times and making installations for short term use feasible, since the pipe can be re-used.

A full range of adapters is available in brass or stainless steel including equal couplers, straight-line connectors, T-pieces and 90-degree bends. All joints can be made gas tight by initially hand tightening and then using a spanner for the final tightening, for pressures up to 25bar. Fittings for higher pressures can be made to order. A feature of this system is that no marks are made to the surface of the pipe, provided no excessive force is used, allowing the pipe to be re-used.