Orifice Flanges are used with orifice meters for the purpose of measuring the flow rate of either liquids or gases in the respective pipeline. They are, for all intensive purposes, the same as weld neck and slip-on flanges with extra machining. Orifice flanges may be provided in one of three types of flanges: Welding Neck, Slip-On and Threaded.
Size:½" (15 NB) to 48" (1200NB)
Class:150 LBS, 300 LBS, 600 LBS, 900 LBS, 1500 LBS, 2500 LBS ASA 150, ASA 300, PN 6,10,16,25,
40,64,100,160 ETC. available with NACE MR 01-75
Material:Aluminum, Brass, Bronze, Cast iron, Stainless Steel, Carbon Steel, Alloy, Nickel, Copper etc.
Standard:ANSI : ANSI B16.47, MSS SP44, ASME B16.36, ANSI B16.48
Specialize:As per drawing
In Form:SORF, WNRF, BLRF, SWRF, LAP Joint, Threaded, Reducing, Spectacle, etc
Type of Flanges:Orifice Flanges, Weld Neck Flanges - WNRF, Socket Weld Flanges - SWRF, Slip On Raise Face -
SORF, Blind Raise Face - BLRF, Spectacle Blind, Ring Joint, Large Dia Flanges, Girth Flange, Lap Joint
Flanges, Screwed (Threaded) Flanges, Long Weld Neck Flanges, Reducing.
Stainless Steel Orifice Flanges:ASTM A 182, A 240, F 304, 304L, 304H, 316, 316L, 316Ti, 310, 310S, 321, 321H, 317, 347, 347H,904L
Alloy Steel Orifice Flanges:ASTM / ASME A/SA 182 & A 387 F1, F5, F9, F11, F12, F22, F91
Carbon Steel Orifice Flanges:ASTM / ASME A/SA 105 ASTM / ASME A 350 , ASTM A 181 LF 2 / A516 Gr.70 A36, A694 F42, F46, F52, F60, F65, F70
Duplex Steel Orifice Flanges:ASTM / ASME A/SA 182 F 44, F 45, F51, F 53, F 55, F 60, F 61
