Orifice Flange

Orifice Flange

Orifice Flange at a Glance

  • Specification : ASME B16.36
  • Class : 150 to 2500
  • Face Type : RF, FF, RTJ, LMF, LJF, SMF
  • MTC : EN 10204 3.1 & 3.2
  • Thickness : SCH 10S to SCH 160
  • Bolts Holes : 4 to 24

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Stainless Steel Orifice Flanges Manufacturer in India as per ASME B16.36

Orifice Flange

Orifice Flange

Stainless Steel Orifice Flanges

Stainless Steel Orifice Flanges

Carbon Steel Orifice Flange

Carbon Steel Orifice Flange

Table Of Content


Orifice Flange Specification
Sizes

Orifice Flange Sizes

  • 1/2" to 48"
  • 15 NB - 1200NB








Pressure Class

RTJ Orifice Plate Pressure Class

  • 600 #
  • 900 #
  • 400 #
  • 2500 #
  • 300 #
  • 1500 #



Manufacturing Technique

Manufacturing Technique of RTJ Orifice Flange

  • Forged Orifice Flange (Strongest Choice)
  • Casting
  • Plate
  • CNC Machined Orifice Flange From Bar Stock
Coating

Copper Nickel Orifice Flange Coating

  • Yellow Transparent
  • Anti-rust Paint
  • Cold and Hot Dip Galvanized
  • Zinc Plated
  • Oil Black Paint
Equipment

Equipment of Stainless Steel Orifice Flanges

  • Pushing Machine
  • Bending Machine
  • Sand-blasting Machine
  • Press Machine
  • Electric Bevelling Machine
Origin

Origin of Carbon steel Orifice Flange

  • USA
  • Korean
  • West Europe
  • Japan
  • India


Dimensional Standards

Dimensional Standards of Orifice Plate Flange

  • GOST
  • AWWA
  • UNI
  • EN
  • JIS
  • SABS
  • AS2129


Packaging and Marking

Packaging and Marking of Stainless Steel Orifice Flanges

  • Sizes
  • Material Specification
  • Heat Code
  • Face Type
  • Pressure Rating Designation


Inspection Plan

Inspection Plan of Orifice Flange

  • Hub Diameter Of
  • Thickness of Weld End
  • Inner & Outer Dia of ORFF Flange Body


Applications

Applications of Orifice Weld Neck Flange

  • Paper Plants
  • Chemical Engineering
  • Offshore
  • Power Project
  • Petrochemicals and Acids
  • Heavy Oil Refineries
  • Petrochemical
MTC & Quality Test

MTC & Quality Test for ASME B16.36 Orifice Flange

  • NACE MR0175
  • Tensile Test
  • Shell Pressure Test
  • Hardness Test
  • Impact Test
  • MTC EN 10204 type 3.1
  • ISO 15156
Material

Orifice Plate Material

  • Ductile Iron Steel
  • Stainless Steel
  • Copper Steel
  • Copper Nickel Steel
  • Titanium Steel
  • Nickel Alloy Steel
  • Alloy Steel
  • Carbon Steel
  • Super Duplex/ DSS Steel
Face Type

Face Type for Orifice Flange

  • Raised face
  • Tongue and Groove Face
  • Lap-Joint Face
  • Ring-Joint Face
  • Flat Face
  • Male/Female Face

Production Technique

Production Technique of ASME B16.36 Orifice Flange

  • Forged
  • Heat treated
  • Machined




Test Certificates

Test Certificate of RTJ Orifice Plate

  • EN 10204/3.1B
  • 100% Radiography Test Report
  • Third Party Inspection Report
  • Raw Materials Certificate
EN

RTJ Orifice Flange EN

  • 25Bar
  • 40Bar
  • 10Bar
  • 16Bar
  • 6Bar
  • Socket Weld Orifice Flange
UNI

Orifice Weld Neck Flange UNI

  • 6Bar
  • 40Bar
  • 16Bar
  • 10Bar
  • 25Bar


JIS

JIS of Orifice Flange

  • 40 K
  • 63 K
  • 30 K
  • 20 K
  • 5 K
  • 16 K
  • 10 K

Aesteiron Recent Export Orders

switzerland
Supplied Stock Of Orifice Flange to Switzerland

Supplied Stock Of Orifice Flange to Switzerland

iceland
Exported Stainless Steel Orifice Flanges to Bahrain

Exported Stainless Steel Orifice Flanges to Bahrain

Click Here For Custom Sizes


Manufacturer of ASME B16.36 Orifice Flange, Check ORFF Flange Dimensions

Dimensions of Reducing Flange

NPS Dai of
(RF)		 HUB
Daimeter		 Outer Daimeter Dai Of
(TAB)		 Min
Thick
Flanges		 HUB
Dai		 Height
Flanges
R A O Tg T X H
8 269.9 219.1 380 12.7 39.7 260 110
24 692.2 610.0 915 12.7 68.3 702 167
1 50.8 33.4 125 6.4 36.6 54 81
20 584.2 508.0 775 12.7 62.0 587 160
1½ 73.0 48.3 155 6.4 36.6 70 84
6 215.9 168.3 320 12.7 36.6 206 98
18 533.4 457.0 710 12.7 58.8 533 157
2 92.1 60.3 165 6.4 36.6 84 84
16 469.9 406.4 650 12.7 55.6 483 144
2½ 104.8 73.0 190 6.4 36.6 100 87
14 412.8 355.6 585 12.7 52.4 425 141
3 127.0 88.9 210 9.5 36.6 117 87
12 381.0 323.8 520 12.7 49.3 375 129
4 157.2 114.3 255 12.7 36.6 146 90
10 323.8 273.0 445 12.7 46.1 321 116

Find Orifice Weld Neck Flange Compatibility and Pressure Ratings

ASME B16.36 Orifice Flange Pressure Rating
Temp (°C)
 Class 600 Class 2500 Class 150 Class 1500 Class 300 Class 900 Class 400
350 80.0 334 8.4 200 40.0 120 53.4
538 11.8 49.2 1.4 29.5 5.9 17.7 7.9
300 85.7 357 10.2 214 42.9 129 57.0
500 23.2 96.5 2.8 57.9 11.6 34.7 15.4
325 82.6 344 9.3 207 41.4 124 55.0
50 103.4 431 19.5 259 51.7 155 68.9
475 34.2 142 3.7 85.4 17.1 51.3 22.8
100 103.0 429 17.7 258 51.5 155 68.7
375 75.7 315 7.4 189 37.8 114 50.4
450 46.0 192 4.6 115 23.0 69.0 30.7
150 100.3 418 15.8 251 50.2 151 66.8
425 57.5 240 5.5 144 28.8 86.3 38.4
200 97.2 405 13.8 243 48.6 146 64.8
400 69.4 290 6.5 174 34.7 104 46.3
250 92.7 386 12.1 232 46.3 139 61.7
-29 - 38 103.4 431 19.8 259 51.7 155 68.9

Carbon steel Orifice Flange for Oil and Gas Industries
Applications of Orifice Flange


Manufacturer of Alloy Steel Orifice Flange, Choose the Right Grade and Temperature Ratings

Temperature Range

Alloy GR. WNR UNS DIN Casting Orifice Flange Forged Orifice Flange Temp range
Alloy Steel Orifice Flange AISI 4130 orifice flanges 1.7218 G41300 – ASTM A217/M ASTM A182
  • 1650 to 1700°F
  • 899 to 927°C
Alloy Steel Chrome Moly Orifice Flange 5Cr-1/2Mo 1.7362 K41545 12CRMO195 ASTM A217 Gr C5 ASTM A182 Gr F5/F5a
  • High temp boiler/ refinery application
9Cr-1Mo-V 1.4903 X 10 CrMoVNb 9 1 A217-C12A A182 Gr F91
  • High pressure boilers
1.1/4Cr-1/2Mo 1.7335 K11572 13CRM044 ASTM A217 WC6 ASTM A182 Grade F11 cl2
  • Up to 593ºC
  • 1100ºF
9Cr-1Mo 1.7386 K90941 X 12 CrMo 9 1 A217-C12 A182 Gr F9
  • High temp erosive refinery application
2.1/4Cr-1Mo 1.7380 K21590 10CRM0910 ASTM A217 Gr WC9 ASTM A182 Gr F22 cl3
  • 1100ºF
  • Up to 593ºC
Moly Steel Orifice Flange C-1/2Mo 1.5415 K12822 15M03 ASTM A217-WC1 ASTM A182 Grade F1 cl2
  • 875ºF
  • Up to 470ºC*

Orifice Plate Flange Dimensions
Dimensions of Orifice Plate Flange

NPS Dia
(D3)		 T L P N
24 595 18 10 60 29
8 202 7 3.5 40 15
1/2 13 1.5 0.24 30 1.5
20 494 16 8 50 25
4 102 5 1.5 40 10
3/4 19 1.5 0.34 30 1.5
6 152 5 1.5 40 15
18 443 13 8 50 23
1 25 2 0.42 30 2
16 392 11 6 50 21
1½ 40 3 0.64 30 3
14 341 10 6 45 20
2 51 3 1 30 6
12 302 10 3.5 45 20
3 76 3 1.5 40 8
10 253 7 3.5 45 19
Size Chart of Stainless Steel Orifice Flange
No. of Bolts Holes
Size in (INCHES) Size in (MM) Class 900 Class 2500 Class 300 Class 1500 Class 600
6 150 12 8 12 12 12
24 600 20  – 24 16 24
1 25 – 4 4 4 4
20 500 20  – 24 16 24
1 1/2 40 – 4 4 4 4
18 450 20  – 24 16 20
2 50 – 8 8 8 8
16 400 20  – 20 16 20
2 1/2 65 – 8 8 8 8
14 350 20  – 20 16 20
3 80 8 8 8 8 8
12 300 20 12 16 16 20
3 1/2 90  – – –  – –
10 250 16 12 16 12 16
4 100 8 8 8 8 8
8 200 12 12 12 12 12
Orifice Weld Neck Flange Weight Chart
NPS in
(Inches)		 DN
(MM)		 Flange Thick D
(MM)		 Flange Outer Dia
A (MM)		 Blind Flange Weight in (KGS) Weld Neck Flange Weight in (KGS) Slip on Flange Weight in (KGS)
4 100 23.9 228.6 7.0 6.8 5.3
10 250 30.2 406.4 28.6 24 16.5
24 600 47.8 812.8 185.0 115 86.9
1/ 2 15 11.2 88.9 0.4 0.5 0.4
20 500 42.9 698.5 122.0 84.5 61.9
3/ 4 20 12.7 98.6 0.6 0.7 0.6
18 450 39.6 635 93.7 68.3 48.9
5 125 23.9 254 8.6 8.6 6.1
1 25 14.2 108 0.9 1 0.8
3 1/ 2 90 23.9 215.9 6.2 6.1 4.8
8 200 28.4 342.9 19.6 17.6 12.1
16 400 36.6 596.9 76.1 60.6 44.8
1 1/ 4 32 15.7 117.3 1.2 1.3 1
6 150 25.4 279.4 11.3 10.6 7.5
1 1/ 2 40 17.5 127 1.5 1.7 1.3
2 50 19.1 152.4 2.4 2.6 2.1
14 350 35.1 533.4 58.1 48.4 34.6
2 1/ 2 65 22.4 177.8 3.9 4.1 3.3
12 300 31.8 482.6 43.2 36.5 26.2
3 80 23.9 190.5 4.9 4.9 3.9
Isometric Symbol of Orifice Flange
Isometric Symbol of Orifice Flange

Jack Screw for Orifice Plate Flange
Nominal SIze Class 300 Orifice Flanges Jack Screw
Length in (INCHES) Size in (INCHES) Hole Size in (INCHES)
6 2-3/4 3/4 7/8
24 4 1 1-1/8
1 2-3/4 5/8 11/16
20 3-3/4 1 1-1/8
1-1/4 2-3/4 5/8 11/16
18 3-3/4 1 1-1/8
5 2-3/4 3/4 7/8
1-1/2 2-3/4 5/8 11/16
8 3 3/4 7/8
16 3-1/2 1 1-1/8
2 2-3/4 5/8 11/16
14 3-1/2 1 1-1/8
2-1/2 2-3/4 5/8 13/16
12 3-1/2 1 1-1/8
3 2-3/4 3/4 13/16
10 3-1/2 1 1-1/8
4 2-3/4 3/4 13/16
Raised Face Orifice Flange Height Chart
RF Orifice Flanges Class Height
Class 600 1/4″
Class 2500 1/4″
Class 300 1/6″
Class 1500 1/4″
Class 400 1/4″
Class 900 1/4″
Face Types of Orifice Plate Flanges
Face Types of Orifice Plate Flange

Weight Chart of Orifice Flange
Weight in (KG)
Size in (INCHES) Size in (MM) Class 900 Class 2500 Class 300 Class 1500 Class 600
8 200 119 261 30 119 53
24 600 1511  – 247 1511 365
1 25 5.4 6.5 4.5 5.4 5.5
20 500 932  – 171 932 295
1 1/2 40 7.8 13 6.5 7.8 7.8
6 150 70 172 14.6 70 37
18 450 738  – 138 738 240
2 50 11.5 19 7 11.5 8.3
16 400 510  – 111 510 190
2 1/2 65 15.8 24 7.5 15.8 10.8
14 350 400  – 84 400 150
3 80 22 43 9.4 22 12.6
12 300 303 730 62 303 102
4 100 22 66 13.2 22 19
10 250 204 485 41 204 86
Advantages of Orifice Plate Flange
  • Versatility
  • Durability
  • Accuracy
Orifice Flange HS Code
Grade HS Code
Orifice Flange 73079990

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  • Specialized in supplying Large Diameter Steel Pipes with wear-resistant coating
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Project Reference

Project Refrence

Tools & Downloads

Conclusion

There Are Numerous Types of Orifice Flange With Different Faces and Pressure Ratings. Utilized Mostly in the Oil and Gas and Petrochemical Industries.

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