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Orifice Flange

Standard ASME/ANSI, BS, JIS, GB, AS
Size range: 1/2" - 56" (DN15 to DN1,400)
Pressure range: 150~1500LB(PN2.5~400)
Material: Special Alloy, Super Duplex Stainless Steel, Stainless Steel, Carbon Steel, Titanium
Flange Facing Types: Flat face(FF),Raised face(RF),Tongue(T),Groove(G),Female(F),Male(M),Ring type joints face(RJ/RTJ)
Used in: Oil, Offshore, Water, Ship, Natural Gas, Power, Pipe Projects etc

  • 產品介紹
  • Material

Orifice Flanges are used with orifice plate or flow nozzle for the purpose of measuring the flow rate of either liquids or gases in the respective pipeline.  Orifice flanges generally come with either raised faces or RTJ (Ring Type Joint) facings. Pairs of pressure tappings are machined into the orifice flange, making separate orifice carriers or tappings in the pipe wall unnecessary.

Acero has 3 warehouses in Wenzhou, Wuxi and Hebei. As one of the piping solution providers, Acero has been committed to providing one-stop solutions for projects in the fields of oil and gas, water, renewable energy and infrastructure. With years’ consistent dedication and innovation, our reliable, cost-effective and environment-friendly solutions have won clients’ wide recognition.

China Orifice Flange manufacturer Acero supplies Orifice Flanges, Orifice Plates Fittings in alloy steel, forged steel, ductile iron, Stainless Steel etc.

Size
1/2″ – 56″ (DN15 to DN1,400)
Pressure
America Series:Class 150 ,Class 300, Class 600, Class 900A ,Class 1500,Class 2500.
Europe Series:PN2.5,PN6,PN10,PN16,PN25,PN40,PN63,PN100,PN160,PN250,PN320,PN400.
Flange Facing Types
America Series:Flat face(FF),Raised face(RF),Tongue(T),Groove(G),Female(F),Male(M),Ring type joints face(RJ/RTJ)
Europe Series:Type A(Flat Face),Type B(Raised Face),Type C(Tongue),Type D(Groove),Type E(Spigot),Type F(Recess),Type G(O-Ring Spigot),Type H(O-Ring Groove)
Material
Carbon steel: ASTM A105,ASTM A105N,GB 20,C22.8.
Alloy steel: ASTM/ASME A182 F1-F12-F11-F22- F5-F9- F91
Stainless steel: ASTM/ASME A182 F304-304L-304H-304LN-304N
ASTM/ASME A182 F316-316L-316H-316LN-316N-316Ti
ASTM/ASME A182 F321-321H, F347-347H
Low temperature steel: ASTM/ASME A350 LF2.
High performance steel: ASTM/ASME A694 F42 , F52, F56, F60, F65, F70
Standards
ASME ANSI B16.5,ASME ANSI B16.47.
API 605,API 6L.
MSS SP 44
CSA Z245.12
EN1092-1,EN1759-1.
DIN2565, DIN2566, DIN2567, DIN2568, DIN2569
BS1560,BS 4504,BS 10.
AFNOR NF E29-200-1
ISO7005-1
AS2129
JIS B2220
UNI 2276. UNI 2277.UNI 2278 .UNI 6089 .UNI 6090

Orifice flange dimensions are covered in ASME B16.36. Orifice flanges are available from Class #300 to Class #2500. Class #300 flanges are available in threaded, slip-on and weld neck end types. Whereas, Class# 600 and above flanges are available in only weld neck type end connection.

During inspection of orifice flange you should check for

  • Outer & Inner Diameter of body
  • Bolt Circle & Bolt hole Diameter
  • Thickness of weld end
  • Length of the Hub
  • Straightness and alignment of the bolt hole
  • Tap holes dimensions

orifice flange dimensions 1024x791 - Orifice Flange

Class 300 Orifice Flange Dimensions (Weld Neck Raised Face)

Size in Inch Size in mm Outer Dia. Flange Thick. Hub OD Weld Neck OD Welding Neck Length RF Dia. RF Height PCD Orifice Hole dia No of Bolts Bolt Size UNC RF Stud Length Hole Size ISO Stud Size Weight in kg
A B C D E F G H I
1 25 125 36.6 54 33.4 81 50.8 2 88.9 6.4 4 5/8 125 3/4 M16 4.5
1 1/2 40 155 36.6 70 48.3 84 73 2 114.3 6.4 4 3/4 135 7/8 M20 6.5
2 50 165 36.6 84 60.3 84 92.1 2 127 6.4 8 5/8 125 3/4 M16 7
2 1/2 65 190 36.6 100 73 87 104.8 2 149.2 6.4 8 3/4 135 7/8 M20 7.5
3 80 210 36.6 117 88.9 87 127 2 168.3 9.5 8 3/4 135 7/8 M20 9.4
4 100 255 36.6 146 114.3 90 157.2 2 200 12.7 8 3/4 135 7/8 M20 13.2
6 150 320 36.6 206 168.3 98 215.9 2 269.9 12.7 12 3/4 135 7/8 M20 14.6
8 200 380 39.7 260 219.1 110 269.9 2 330.2 12.7 12 7/8 145 1 M24 30
10 250 445 46.1 321 273 116 323.8 2 387.3 12.7 16 1 165 1 1/8 M27 41
12 300 520 49.3 375 323.8 129 381 2 450.8 12.7 16 1 1/8 180 1 1/4 M30 62
14 350 585 52.4 425 355.6 141 412.8 2 514.4 12.7 20 1 1/8 185 1 1/4 M30 84
16 400 650 55.6 483 406.4 144 469.9 2 571.5 12.7 20 1 1/4 195 1 3/8 M33 111
18 450 710 58.8 533 457 157 533.4 2 628.6 12.7 24 1 1/4 205 1 3/8 M33 138
20 500 775 62 587 508 160 584.2 2 685.8 12.7 24 1 1/4 215 1 3/8 M33 171
24 600 915 68.3 702 610 167 692.2 2 812.8 12.7 24 1 1/2 240 1 5/8 M39 247
Class 600 Orifice Flange Dimensions (Weld Neck Raised Face)
Size in Inch Size in mm Outer Dia. Flange Thick. Hub OD Weld Neck OD Welding Neck Length RF Dia. RF Height PCD Orifice Hole dia No of Bolts Bolt Size UNC RF Stud Length Hole Size ISO Stud Size Weight in kg
A B C D E F G H I
1 25 125 36.6 54 33.5 81 50.8 7 88.9 6.4 4 5/8 125 3/4 M16 5.5
1 1/2 40 155 36.6 70 48.3 84 73 7 114.3 6.4 4 3/4 135 7/8 M20 7.8
2 50 165 36.6 84 60.3 84 92.1 7 127 6.4 8 5/8 125 3/4 M16 8.3
2 1/2 65 190 36.6 100 73 87 104.8 7 149.2 6.4 8 3/4 135 7/8 M20 10.8
3 80 210 36.6 117 88.9 87 127 7 168.3 9.5 8 3/4 135 7/8 M20 12.6
4 100 275 38.1 152 114.3 102 157.2 7 215.9 12.7 8 7/8 150 1 M24 19
6 150 355 47.7 222 168.3 117 215.9 7 292.1 12.7 12 1 180 1 1/8 M27 37
8 200 420 55.6 273 219.1 133 269.9 7 349.2 12.7 12 1 1/8 195 1 1/4 M30 53
10 250 510 63.5 343 273 152 323.8 7 431.8 12.7 16 1 1/4 220 1 3/8 M33 86
12 300 560 66.7 400 323.8 156 381 7 489 12.7 20 1 1/4 230 1 3/8 M33 102
14 350 605 69.9 432 355.6 165 412.8 7 527 12.7 20 1 3/8 240 1 1/2 M36 150
16 400 685 76.2 495 406.4 178 469.9 7 603.2 12.7 20 1 1/2 260 1 5/8 M39 190
18 450 745 82.6 546 457.2 184 533.4 7 654 12.7 20 1 5/8 280 1 3/4 M42 240
20 500 815 88.9 610 508 190 584.2 7 723.9 12.7 24 1 5/8 300 1 3/4 M42 295
24 600 940 101.6 718 609.6 203 692.2 7 838.2 12.7 24 1 7/8 335 2 M48 365

Class 900 Orifice Flange Dimensions (Weld Neck Raised Face)

Size in Inch Size in mm Outer Dia. Flange Thick. Hub OD Weld Neck OD Welding Neck Length RF Dia. RF Height PCD Orifice Hole dia No of Bolts Bolt Size UNC RF Stud Length Hole Size ISO Stud Size Weight in kg
A B C D E F G H I
1 25 150 38.1 52 33.5 83 50.8 7 101.6 6.4 4 7/8 150 1 M24 5.4
1 1/2 40 180 38.1 70 48.3 89 73 7 123.8 6.4 4 1 160 1 1/8 M27 7.8
2 50 215 38.1 105 60.3 102 92.1 7 165.1 6.4 8 7/8 150 1 M30 11.5
2 1/2 65 245 41.3 124 73 105 104.8 7 190.5 6.4 8 1 165 1 1/8 M27 15.8
3 80 240 38.1 127 88.9 102 127 7 190.5 9.5 8 7/8 150 1 M24 22
4 100 290 44.5 159 114.3 114 157.2 7 235 12.7 8 1 1/8 180 1 1/4 M30 22
6 150 380 55.6 235 168.3 140 215.9 7 317.5 12.7 12 1 1/8 195 1 1/4 M30 70
8 200 470 63.5 298 219.1 162 269.9 7 393.7 12.7 12 1 3/8 230 1 1/2 M36 119
10 250 545 69.9 368 273 184 323.8 7 469.9 12.7 16 1 3/8 240 1 1/2 M36 204
12 300 610 79.4 419 323.8 200 381 7 533.4 12.7 20 1 3/8 260 1 1/2 M36 303
14 350 640 85.8 451 355.6 213 412.8 7 558.8 12.7 20 1 1/2 280 1 5/8 M39 400
16 400 705 88.9 508 406.4 216 469.9 7 616 12.7 20 1 5/8 290 1 3/4 M42 510
18 450 785 101.9 565 457.2 229 533.4 7 685.8 12.7 20 1 7/8 330 2 M48 738
20 500 855 108 622 508 248 584.2 7 749.3 12.7 20 2 355 2 1/8 M52 932
24 600 1040 139.7 749 609.6 292 692.2 7 901.7 12.7 20 2 1/2 445 2 5/8 M64 1511

Class 1500 Orifice Flange Dimensions (Weld Neck Raised Face)

Size in Inch Size in mm Outer Dia. Flange Thick. Hub OD Weld Neck OD Welding Neck Length RF Dia. RF Height PCD Orifice Hole dia No of Bolts Bolt Size UNC RF Stud Length Hole Size ISO Stud Size Weight in kg
A B C D E F G H I
1 25 150 38.1 52 33.5 83 50.8 7 101.6 6.4 4 7/8 150 1 M24 5.4
1 1/2 40 180 38.1 70 48.3 89 73 7 123.8 6.4 4 1 160 1 1/8 M27 7.8
2 50 215 38.1 105 60.3 102 92.1 7 165.1 6.4 8 7/8 150 1 M24 11.5
2 1/2 65 245 41.3 124 73 105 104.8 7 190.5 6.4 8 1 165 1 1/8 M27 15.8
3 80 265 47.7 133 88.9 117 127 7 203.2 9.5 8 1 1/8 185 1 1/4 M30 22
4 100 310 54 162 114.3 124 157.2 7 241.3 12.7 8 1 1/4 205 1 3/8 M33 22
6 150 395 82.6 229 168.3 171 215.9 7 317.5 12.7 12 1 3/8 265 1 1/2 M36 70
8 200 485 92.1 292 219.1 213 269.9 7 393.7 12.7 12 1 5/8 300 1 3/4 M42 119
10 250 585 108 368 273 254 323.8 7 482.6 12.7 12 1 7/8 345 1 M48 204
12 300 675 123.9 451 323.8 283 381 7 571.5 12.7 16 2 380 2 1/8 M52 303
14 350 750 133.4 495 355.6 298 412.8 7 635 12.7 16 2 1/4 415 2 3/8 M56 400
16 400 825 146.1 552 406.4 311 469.9 7 704.8 12.7 16 2 1/2 450 2 5/8 M64 510
18 450 915 162 597 457.2 327 533.4 7 774.7 12.7 16 2 3/4 500 2 7/8 M72 738
20 500 985 177.8 641 508 356 584.2 7 831.8 12.7 16 3 545 3 1/8 M76 932
24 600 1170 203.2 762 609.6 406 692.2 7 990.6 12.7 16 3 1/2 620 3 5/8 M90 1511

Class 2500 Orifice Flange Dimensions (Weld Neck Raised Face)

Size in Inch Size in mm Outer Dia. Flange Thick. Hub OD Weld Neck OD Welding Neck Length RF Dia. RF Height PCD Orifice Hole dia No of Bolts Bolt Size UNC RF Stud Length Hole Size ISO Stud Size Weight in kg
A B C D E F G H I
1 25 160 38.1 57 33.5 92 50.8 7 108 6.4 4 7/8 150 1 M24 6.5
1 1/2 40 205 44.5 79 48.3 111 73 7 146 6.4 4 1 1/8 180 1 1/4 M30 13
2 50 235 50.8 95 60.3 127 92.1 7 171.4 6.4 8 1 185 1 1/8 M27 19
2 1/2 65 265 57.2 114 73 143 104.8 7 196.8 6.4 8 1 1/8 205 1 1/4 M30 24
3 80 305 66.7 133 88.9 168 127 7 228.6 9.5 8 1 1/4 230 1 3/8 M33 43
4 100 355 76.2 165 114.3 190 157.2 7 273 12.7 8 1 1/2 260 1 5/8 M39 66
6 150 485 108 235 168.3 273 215.9 7 368.3 12.7 8 2 350 2 1/8 M52 172
8 200 550 127 305 219.1 318 269.9 7 438.2 12.7 12 2 385 2 1/8 M52 261
10 250 675 165.1 375 273 419 323.8 7 539.8 12.7 12 2 1/2 490 2 5/8 M64 485
12 300 760 184.2 441 323.8 464 381 7 619.1 12.7 12 2 3/4 540 2 7/8 M72 730

Disclaimer –  Please check with ASME B16.36 Before using.

Summary
orifice flange - Orifice Flange
Aggregate Rating
5 based on 1 votes
Brand Name
Acero
Product Name
Orifice Flange
Price
USD 1-10000
Product Availability
Pre-Order Only

Material

Special Alloys

  • HASTELLOY® X
  • MONEL® R-405
  • MONEL® K-500
  • HASTELLOY® C-276
  • HASTELLOY® C-22
  • HASTELLOY® B-2
  • INCOLOY® 825
  • INCOLOY® 800H / 800HT®
  • INCONEL® 718
  • INCONEL® ALLOY 625
  • INCONEL® ALLOY 601
  • INCONEL® ALLOY 600
  • MONEL® ALLOY 400

ALLOY 20

  • NICKEL 200/201
  • MONEL® R-405
  • MONEL® K-500
  • MONEL® ALLOY 400
  • INCONEL® 718
  • INCONEL® ALLOY 625
  • INCONEL® ALLOY 601
  • INCONEL® ALLOY 600
  • INCOLOY® 825
  • HASTELLOY® X
  • HASTELLOY® C-276
  • HASTELLOY® C-22
  • HASTELLOY® B-2
  • INCOLOY® 800H / 800HT®
  • HASTELLOY® B-3

Duplex Stainless Steel

  • ZERON® 100, SUPER DUPLEX STAINLESS STEEL
  • Super Duplex S32760
  • LDX 2101®, DUPLEX STEEL
  • Duplex S31803
  • SUPER DUPLEX 2507
  • DUPLEX 2205

Stainless Steel

  • STAINLESS STEEL NITRONIC 50HS
  • STAINLESS STEEL NITRONIC 60
  • STAINLESS STEEL NITRONIC 50
  • STAINLESS STEEL 13-8PH
  • STAINLESS STEEL 15-5PH
  • STAINLESS STEEL PRODEC 303
  • STAINLESS STEEL 303
  • STAINLESS STEEL 446
  • STAINLESS STEEL 410S
  • STAINLESS STEEL 410
  • STAINLESS STEEL 304-304H
  • STAINLESS STEEL 17-4
  • STAINLESS STEEL 347
  • STAINLESS STEEL 440C
  • STAINLESS STEEL 309
  • STAINLESS STEEL 316-316l
  • STAINLESS STEEL AL-6XN®
  • STAINLESS STEEL 330
  • STAINLESS STEEL 321
  • 317L STAINLESS STEEL
  • STAINLESS STEEL 310/310S
  • Stainless Steel 304L
  • Stainless Steel 304
  • STAINLESS STEEL 253 MA

Carbon Steel

  • CARBON STEEL PRODUCTS

Titanium

  • 10V-2Fe-3Al
  • 6Al-4V
  • 6Al-4V STA
  • 6Al-4V ELI
  • 6Al-2Sn-4Zr-2Mo

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