Hydraulic Flanges

Hydraulic Flanges are connection between hoses or seamless tubes where easy removal is required with in close quarters in the piping systems.
Hydraulic Flanges are mainly used for Bigger sizes of tubes in NB ( Nominal Bore ) sizes.
Hydraulic Flanges are used in bigger sizes of Piping joints Where Nut & ferrule assembly is not possible due to higher in Hex section sizes & High torgue require to tighetened Grip the ferrule in to the tube & lead to loose the joints at High pressure application. In such cases the usage of Flanges with Butt weld or Socket weld has been found to be more practical leading to compact piping installation.
CETOP Flanges and ISO 6164 Specify Flanges with Butt weld ends and Square clamping Flanges for 250 bar and 400 bas static working Pressure respectively. These correspond to 160 bar and 315 Bar dynamic Working Pressures. The Flange System consist of a Sleeve to be Butt or Socket Welded to the Pipe and clamped together betwwen two square Flanges by a set of four Hex bolts , Nuts and Spring washers, One of the sleeves carries an O ring groove fitted with an O ring for sealing the interface.