Orifice flange, as per international standard

Orifice flange is used with orifice meters to measure the flow rate of liquid and gas. Two orifice flange with bolt and jack screw are referred to as an orifice flange union, which is used in conjunction with the orifice plate. Compared with welding neck flange and slip-on flange, it is provided radial, tapped holes in the flange ring for meter connections and additional bolts to to facilitate separating the flanges for inspection of orifice plate.

Orifice flange, specifications:

Size:

orifice flange: 1"--24"

DN 25--DN600

Pressure:

American series: Class 150, Class 300, Class 400, Class 600, Class 900, Class 1500, Class 2500

Facing types: FF, RF, T, G, F, M, RJ

Material:

Carbon steel : A105
Aloy 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

Standard: ASME B16.36-2006

Industrial usage:

electrical power, petroleum, natural gas, chemical, shibuilding, heating, papermaking, metallurgy,

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