Orifice flanges are one of the most economical means of measuring flow. Techno-Flow's Orifice Flanges are all manufactured to flanges as specified in ANSI B16.36, steel orifice flanges, and ANSI/API 2530 (AGA #3), orifice metering of natural gas, with careful attention given to tap location, bore smoothness, bolt and flange facings.
Techno-Flow Orifice Flanges are
made of forged steel, A.S.T.M. A-105. Other materials are available on special
Bore Tolerances are well within the latest recommendations of the American Gas Association for .75 Beta ratio. Pressure Tap Hole Location is closely controlled and are drilled to specifications applicable.
ORIFICE FLANGE ASSEMBLY SHOWING ORIFICE TAPS JACKING SCREWS AND ORIFICE PLATE
Flange Tap Connections
Standard connections are ½ " NPT. Or socket weld
STAGGERED TAPPING HOLES:
Techno-Flow Orifice Flanges with staggered tap holes are available upon request. These locations provide convenient clearance for instrument piping when valves must be installed adjacent to orifice flanges. Extra tap holes at bottom can be supplied to facilitate drainage where condensate is present.
ORIFICE FLANGE ASSEMBLY WITH JACKING BOLTS AND TWO FLANGE TAPS AT 180°
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