Hebei Metals supplies the Stainless Steel Orifice Flanges.

 The function for the orifice flange is to measure the rate of the flow 

 of the commodity through the pipeline system. It has a hole drilled 

 through the face of the flange perpendicular to the pipe with a set of 

 bolts called jack screws which are used to seperate the flange so

 inspection or replacement of the orifice plate can be performed.