Profile: Imperial Flange & Fitting Company, Inc. manufactures a full line of pressurized pipe flow measurement devices. We offer engineering services such as bore calculations, flow curves and drawings. We cater to primary flow element needs. Our product line includes orifice plates, orifice flanges, grounding rings, venturi tubes, spool pieces, thermocouples, condensate chambers, restriction orifice unions, straightening vanes and orifice spacers.