Orifice Flanges

Orifice Flanges

 

Orifice Flanges are used with orifice meters for the purpose of measuring the flow rate of either liquids or gases in the respective pipeline. Pairs of pressure "Tappings", mostly on 2 sides, directly opposite each other, are machined into the orifice flange. This makes separate orifice carriers or tappings in the pipe wall unnecessary. Orifice flange like a couple of weling-neck flange, in fact its dimension is very closed to ASME B16.5 WNRF, but with two jacked holes in the side.

Orifice Flanges

Orifice Flanges

Kaysuns provide orifice flange in material stainless steel A182 F304, 316L, 321, 347H, 317L, 904L, F51, F53, F55, F44 etc.

Flange Type: Orifice Flange
Dimension & Standard: ASME B16.36
Connected End: Welding
Flange Process: Forged
Material: Stainless Steel: ASTM A/SA182 F304, F304L,F316, F316L, 316Ti, F317L, F321,F321H,    F310H, F347H, N08904, F44 etc. (W1.4301, 1.4306, 1.4948, 1.4401, 1.4404, 1.4571, 1.4438, 1.4541, 1.4878, 1.4550, 1.4845, 1.4539, 1.4547 etc.).
Duplex&Super Duplex: A182 F51, F53, F55, F59, F60(w1.4462, 1.4410, 1.4501, 1.4507 etc.)
Nickel-based Alloy: Monel 400, Inconel 600, 625, Incoloy 800, 825, Hastelloy C276
Application: Oil and gas, Chemcial, Marine and ship building etc.

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Specification:

ASME B16.36-2006 ORIFICE FLANGES
CLASS 300 CLASS 600 CLASS 900 CLASS 1500
NOMINAL
PIPE SIZE
THICKNESS
MIN
LENGTH
THRU
HUB
W/NECK
THICKNESS
MIN
LENGTH
THRU
HUB
W/NECK
THICKNESS
MIN
LENGTH
THRU
HUB
W/NECK
THICKNESS
MIN
LENGTH
THRU
HUB
W/NECK
MM INCH T LTB T LTB T LTB T LTB
25 1 36.6 83 36.6 83 38.1 90 38.1 90
40 1 1/2 36.6 86 36.6 86 38.1 96 38.1 96
50 2 36.6 86 36.6 86 38.1 109 38.1 109
65 2 1/2 36.6 89 36.6 89 41.3 112 41.3 112
80 3 36.6 89 36.6 89 38.1 109 47.7 124
100 4 36.6 92 38.1 109 44.5 121 54 131
150 6 36.6 100 47.8 124 55.6 147 82.6 178
200 8 39.7 112 55.6 140 63.5 169 92.1 220
250 10 46.1 118 63.5 159 69.9 191 108 261
300 12 49.3 131 66.5 163 79.2 207 123.9 290
350 14 52.4 143 69.9 172 85.9 220 133.4 305
400 16 55.6 146 76.2 185 88.9 223 146.1 318
450 18 58.8 159 82.6 191 101.6 236 162 334
500 20 62 162 88.9 197 108 255 177.8 363
600 24 68.3 169 101.6 210 139.7 299 203.2 413

Flanges Catalog

Orifice Flange Dimension to ASME B16.36

*For more information about orifice flanges, please contact us.

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