446 Orifice Flanges, 347/347H Orifice Flanges, 321/321H Orifice Flanges, 317/317L Orifice Flanges, 316/316L Orifice Flanges, 310/310S Orifice Flanges, 04/304L Orifice Flanges.
Alloy Steel, Inconel Orifice Flanges, Copper Nickel Alloy, Carbon Steel, Duplex steel, Hastelloy, Titanium, Alloy 20, Monel & Stainless Steel.
The functions of an Orifice Flange is to provide access to a line for metering of gases or liquids. An Orifice Plate is clamped between a pair of flanges when installed in a line & the whole assembly is known as an orifice flange union. Jack-screws within the assembly facilitates the removal of the orifice plate. In the orifice plate, the metering device, consists of a thin plate with a concentric, square edge & circular hole in the center. Two different pressure tap-holes are drilled in each flange to measure pressure difference through the orifice.
|Material of Construction||Standard||Grades|
|Stainless Steel Orifice Flanges||ASTM A240, A182
||201, 202, F 304, 304L, 304H, 309S, 309H, 310S, 310H, 316, 316Ti, 316H, 316L, 316LN, 317, 317L, 321, 321H, 347, 347H, 904L|
|Carbon Steel Orifice Flanges||ASTM A105||Gr. F70,65,60,56,52,46,42|
|Alloy Steel Orifice Flanges||ASTM A182||F91,F22,F11,F9,F5,F1|
|Nickel Alloy Orifice Flanges||ASTM SB564, SB472, SB162, SB160||Nickel 201 (UNS No. N02201), Monel 400 (UNS No. N04400), Monel 500 (UNS No. N05500), Inconel 825 (UNS No. N08825), Inconel 600 (UNS No. N06600), Nickel 200 (UNS No. N02200), Inconel 800 (UNS No. N08800), Alloy 20 (UNS No. N08020), Inconel 625 (UNS No. N06625), Inconel 601 (UNS No. N06601), Hastelloy C 276 (UNS No. N10276)|
|Copper Alloys Orifice Flanges||ASTM SB151, SB152, SB 61, SB62||UNS No. C 71500 (Cu-Ni 70/30), C 70600 (Cu-Ni 90/10), UNS No. C 10100, 10200, 10300, 10800, 12000, 12200|
|Low Temperature Carbon Steel Orifice Flanges||ASTM A350||LF3, LF2
|Duplex Steel Orifice Flanges||ASTM A240, A182
||UNS F 61, F 60, F 55, F 53, F51, F 45, F 44|
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