Orifice Flange

Our orifice flange is used with orifice meters to measure the flow rate of liquid and gas. Two orifice flanges with bolts and jack screws are referred to as an orifice flange union, which is used in conjunction with an orifice plate. Compared with weld neck flange and slip on flange, it is provided radial, tapped holes in the flange ring for meter connections and additional bolts to facilitate separating the flanges for inspection of the orifice plate.
Size
Orifice flange: 1"～24"
DN25～DN600

Pressure
American Series: CLASS 150, CLASS 300, CLASS 400, CLASS 600, CLASS 900, CLASS 1500, CLASS 2500

Flange Facing Types
American Series: Flat Face(FF), Raised Face(RF), Tongue(T), Groove(G), Female(F), Male(M), Ring Joints Face(RJ)

Materials
Carbon steel: A105
Alloy steel: A182 F 1-F 2-F 5-F 9-F 10-F 91-F 92-F 122-F 911-F 11-F 12-F 21-F 22
Stainless steel: A182 304-304H-304L-304N-304LN 316-316H-316L-316N-316LN 321-321H 347-347H
Low temperature steel: A522 A707 Grade L 1-L 2-L 3-L 4-L 5-L 6-L 7-L 8
High performance steel: A694 F 42-F 46-F 48-F 50-F 52-F 56-F 60-F 65-F 70