Pipe flange

Two Orifice Flanges are called an orifice flange union. Each flange comes with two pipe taps for measuring the pressure drop of the flow through an orifice plate. Orifice plates do not come with the flanges and are sized based on the requirements of the process. Two jack screws are used to spread the flanges apart in order to change the orifice plate. This flange is normally available in weld neck, slip-on, and threaded flanges. These flanges have a raised face. An Orifice Flange is similar in almost every aspect to their respective flanges, except that they have holes in the side of the flange perpendicular to the bolt holes. These holes act as instrumentation outlets for such things as pressure gauges, flow speedometers etc. These flanges are widely used in conjunction with orifice meters for measuring the rate of flow of liquids and gases. Orifice Flanges are installed in a straight run of pipe in order to avoid turbulence at the plate. As a rule of thumb, an orifice flange ...