Plumbing fitting 0401290 series

SOCKET UNION with GAS threaded ring nut GAS female threded end with NBR O-Ring gasket Connectivity standard External thread GAS cylindrical ISO 228/1 Connectivity standard Internal thread GAS cylindrical ISO 228/1. Connectivity standard Bucchi srl for pipe fittings adopts as standard connection ISO 228/1; in order to improve hydraulic seal has decided to create its own internal regulations, based on a soft conical thread. Therefore it is noted that to ensure the hydraulic seal declared it is expected a slight tightening with a key that does not generate the breakage of the coupling. (See table tightening torque) Operating pressure 10 bar at 20°C