Orifice Union Flange Manufacturer

Specialized Orifice Union Flange Manufacturer, ASME B16.36 Orifice Flange Union Dimensions.

Marcel Piping Projects Supply PVT LTD is dominant Manufacturers, Stockists, Suppliers, and Exporters of Orifice Plate Flange Union in India. Orifice Union Flange provide an provident method of measuring inflow both liquid and gas services. Flanges are machined in accord with the requirements of ANSI B 16.36. Raised face flanges meet the needs of ANSI B 16.5 for raised face range. Our standard pressure valve, bore tolerance and surface end are each in accordance with the requirement of both API 14.3 and ISO 5167. Full compliance with these further exacting specifications can be supplied if demanded. This is achieved with the addition of precisely custom-made dowel pin holes in each flange to assure maximum concentrically.

The Orifice Union Flange has no moving factor and 4 the Differential Pressure Tap are located on the ASME Flanges. If needed this Orifice Flanges Assembly can be used as a Pressure Reducing units by replacing the “ 520” Paddle type Orifice Plate for a Restriction type Plate. Orifice union flange is designed in different style in order to match them with the different style of orifice plate available. There are 4 different types of Orifice Union flange namely Weld Neck Orifice Union flange, Slip On Orifice Union flange, Threaded Orifice Union flange, and Socket Weld Orifice Union flange.

We are one of the largest exporters of Orifice Flange Unions in USA, UK, Qatar, Mexico, Nigeria, Saudi Arabia, Kuwait, Iran, Kazakhstan, Bahrain, Vietnam, Indonesia, Norway, Ghana, Colombia, Azerbaijan, Libya at market leading prices.

Orifice Union Flange Manufacturer
Orifice Union Flange Manufacturer in Mumbai, India
Orifice Union Flange Supplier
Orifice Union Flange Supplier in Mumbai, India

We are ISO Certified Manufacturer and Stockist of Orifice Union Flange in Stainless Steel, Carbon Steel, Mild Steel, Alloy Steel, Duplex Steel, Super Duplex Steel, Hastelloy, Monel, Copper Nickel, Inconel, Incoloy, Nickel Alloy, Alloy 20, 254 Smo, Titaniun, Bronze, Aluminium, Brass at Reasonable Price.

We are Leading Exporter and Supplier of ASME B16.36 Orifice Unions, Orifice Plate Flange Union, Threaded Orifice Union, Differential Pressure Orifice Flange Union Class 150#, 300#, 600#, 900#, 1500#, 2500# Dimensions.

Orifice Flange Union Standard Specifications Orifice Union Specification Chart

Product Name Orifice Union Flange
Size Range 1/2″ (15 NB) to 48″ (1200NB)
Class / Pressure Rating 150#, 300#, 600#, 900#, 1500#, 2500#, PN6, PN10, PN16, PN25, PN40, PN64 etc.
Standards / Dimensions ASME B16.36, ANSI/ASME B16.5, B16.47 Series A & B, B16.48, BS4504, BS 10, EN-1092, DIN, BS, GOST, MSS SP-44, ISO70051, JISB2220, BS1560-3.1, API7S-15, API7S-43, API605
Flange Face Types / Connection Type Flat Face Flange (FF), Raised Face Flange (RF), Ring Joint Flange (RTJ), Lap Joint Flange, Male and Female Flange (M&F), Large and Small Tongue-and-Groove Flange (T&G)
Custom Design As per your drawing | AS, BS, ANSI, DIN, JIS | Equal and Reducing Configurations
Material Test Certificates (MTC) As per EN 10204 3.2 and EN 10204 3.1, Test Certificates certifying NACE MR0175, NACE MR0103
Test Certificates 100% Radiography Test Report, EN 10204/3.1B, Raw Materials Certificate, Third Party Inspection Report, etc
Tests Hydrostatic testing machine, Direct-reading Spectrograph, UI trasonic flaw detector, X-ray detector, Magnetic particle detector
Equipment / Machines Press machine, Pushing Machine, Bending machine, Sand-blasting machine, electric bevelling machine, etc.
Coating Anti-rust Paint, Oil Black Paint, Yellow Transparent, Zinc Plated, Cold and Hot Dip Galvanized
Origin Indian / USA / Japan / West Europe / Korean
Applications/Usage Offshore, Oil Field, Shipbuilding, Water System, Natural Gas, Pipe Projects, Electric Power, etc.
Top Export Network USA, UK, Qatar, Mexico, Nigeria, Saudi Arabia, Kuwait, Iran, Kazakhstan, Bahrain, Vietnam, Indonesia, Norway, Ghana, Colombia, Azerbaijan, Libya.

Orifice Flange Union Material Grades Orifice Flange Union Material Standard

Stainless Steel Orifice Flange Union ASTM/ASME A/SA182:- F304, F304L, F316, F316L, ASTM/ASME A/SA351:- CF3, CF3M, CF8, CF8M, DIN 1.4306, DIN 1.4301, DIN 1.4404, DIN 1.4401, DIN 1.4408, DIN 1.4308, DIN 1.4306, DIN 1.4409
Duplex Orifice Flange Union S31803 / S32205 A182:- Gr F51 / F52 / F53 / F54 / F55 / F57 / F59 / F60 / F61
Super Duplex Orifice Flange Union S32750 / S32760 A182:- Gr F51 / F52 / F53 / F54 / F55 / F57 / F59 / F60 / F61
Copper Nickel Orifice Flange Union ASTM / ASME SB 61 / 62 / 151 / 152, Copper Nickel 90/10 (C70600 ), Cupro Nickel 70/30 (C71500), UNS C71640
Titanium Orifice Flange Union ASTM B381 / ASME SB381:- Titanium Gr. 1, Titanium Gr. 2, Titanium Gr. 4, Titanium Gr. 5, Titanium Gr. 7
ASTM  R50250/GR.1 | R50400/GR.2 | R50550/GR.3 | R50700/GR.4 | GR.6 |R52400/GR.7 | R53400/GR.12 | R56320/GR.9 | R56400/GR.5
Copper Orifice Flange Union TP1, TP2, C10930, C11000, C11300, C11400, C11500, C11600, C12000, C12200, C12300, T1, T2, C10100, C10200, C10300, C10400, C10500, C10700, C10800, C10910, C10920, TU1, TU2, C12500, C14200, C14420, C14500, C14510, C14520, C14530, C17200, C19200, C21000, C23000, C26000, C27000, C27400, C28000, C33000, C33200, C37000, C44300, C44400, C44500, C60800, C63020, C68700, C70400, C70600, C70620, C71000, C71500, C71520, C71640, etc
Incoloy Orifice Flange Union ASTM B564 / ASME SB564:- Incoloy 800, 800H, 800HT (UNS N08800), 825 (UNS N08825), 925
Inconel Orifice Flange Union ASTM B564 / ASME SB564:- Inconel 600, 601, 625, 718, 783, 690, x750
Nickel Orifice Flange Union ASTM B564 / ASME SB564:- Nickel 200, Nickel 201, Nickel 205, Nickel 205LC
Hastelloy Orifice Flange Union ASTM B564 / ASME SB564:- Hastelloy C276 (UNS N10276), C22 (UNS N06022), C4, C2000, B2, B3, X
Monel Orifice Flange Union ASTM B564 / ASME SB564:- Monel 400 (UNS No. N04400), Monel 500 (UNS No. N05500)
Carbon Steel Orifice Flange Union ASTM/ASME A/SA105 A/SA105N and A/SA216-WCB, DIN 1.0460, DIN 1.0402, DIN 1.0619, Die Steel, ASTM A105 / ASME SA105, A105N, ASTM A350 LF2 / ASME SA350, CS High Yield ASTM A694 / A694 (F52, F56, F60, F65, F70, F80)
Alloy Steel Orifice Flange Union ASTM A182 / ASME SA182:- F5, F9, F11, F12, F22, F91
Alloy 20 Orifice Flange Union ASTM B462 / ASME SB462:- Carpenter® 20 Alloy, Alloy 20Cb-3
254 SMO Orifice Flange Union ASTM A182 / ASME SA182:- SMO 254/6Mo, UNS S31254, DIN 1.4547
Aluminium Orifice Flange Union 5052 /6061/ 6063 / 2017 / 7075 / etc.
Brass Orifice Flange Union 3602 / 2604 / H59 / H62 / etc.
Other Orifice Flange Union material Tin bronze, Alumunum bronze, Lead bronze, Nimonic 75, Nimonic 80A, Nimonic 90, AISI 4140, AISI 4130, Mild Steel, Al6XN Flanges

Orifice Flange Union Standards Orifice Flange Union Standard Dimensions

Orifice WN Flange Union Class 300 Dimensions Class 300 WN Flanges

Class 300 WN Flanges Dimensions

Drilling
Nom  Size OD Thickness OD of RF Dia at Base Dia Bevel LTH Dia of Pressure Connection Bolt Circle Hole Dia # of Holes Bolt Dia
O C R X A Y TT
in 1 4.88 1.5 2 2.12 1.32 3.25  1/4 3.5 0.69 4  5/8
mm 124 38.1 50.8 53.8 33.5 82.6 6.4 88.9 17.5 15.9
in 1 1/2 6.12 1.5 2.88 2.75 1.9 3.38  1/4 4.5 0.81 4  3/4
mm 155.4 38.1 73.2 69.9 48.3 85.9 6.4 114.3 20.6 19.1
in 2 6.5 1.5 3.62 3.31 2.38 3.38  1/4 5 0.69 8  5/8
mm 165.1 38.1 91.9 84.1 60.5 85.9 6.4 127 17.5 15.9
in 2 1/2 7.5 1.5 4.12 3.94 2.88 3.5  1/4 5.88 0.81 8  3/4
mm 190.5 38.1 104.6 100.1 73.2 88.9 6.4 149.4 20.6 19.1
in 3 8.25 1.5 5 4.62 3.5 3.5  3/8 6.62 0.81 8  3/4
mm 209.6 38.1 127 117.3 88.9 88.9 9.5 168.1 20.6 19.1
in 4 10 1.5 6.19 5.75 4.5 3.62  1/2 7.88 0.81 8  3/4
mm 254 38.1 157.2 146.1 114.3 91.9 12.7 200.2 20.6 19.1
in 6 12.5 1.5 8.5 8.12 6.63 3.94  1/2 10.62 0.88 12  3/4
mm 317.5 38.1 215.9 206.2 168.4 100.1 12.7 269.7 22.4 19.1
in 8 15 1.62 10.62 10.25 8.63 4.38  1/2 13 1 12  7/8
mm 381 41.1 269.7 260.4 219.2 111.3 12.7 330.2 25.4 22.2
in 10 17.5 1.88 12.75 12.62 10.75 4.62  1/2 15.25 1.12 16 1   
mm 444.5 47.8 323.9 320.5 273.1 117.3 12.7 387.4 28.4 25.4
in 12 20.5 2 15 14.75 12.75 5.12  1/2 17.75 1.25 16 1 1/8
mm 520.7 50.8 381 374.7 323.9 130 12.7 450.9 31.8 28.6
in 14 23 2.12 16.25 16.75 14 5.62  1/2 20.25 1.25 20 1 1/8
mm 584.2 53.8 412.8 425.5 355.6 142.7 12.7 514.4 31.8 28.6
in 16 25.5 2.25 18.5 19 16 5.75  1/2 22.5 1.38 20 1 1/4
mm 647.7 57.2 469.9 482.6 406.4 146.1 12.7 571.5 35.1 31.8
in 18 28 2.38 21 21 18 6.25  1/2 24.75 1.38 24 1 1/4
mm 711.2 60.5 533.4 533.4 457.2 158.8 12.7 628.7 35.1 31.8
in 20 30.5 2.5 23 23.12 20 6.38  1/2 27 1.38 24 1 1/4
mm 774.7 63.5 584.2 587.2 508 162.1 12.7 685.8 35.1 31.8
in 24 36 2.75 27.25 27.62 24 6.62  1/2 32 1.62 24 1 1/2
mm 914.4 69.9 692.2 701.5 609.6 168.1 12.7 812.8 41.1 38.1

Orifice SO Flange Union Class 300 Dimensions Slip On Orifice Class 300 Flanges

Slip On Orifice Class 300 Flanges Dimensions
Drilling
Nom  Size OD Thickness OD of RF Dia at Base Dia Bevel LTH Dia of Pressure Connection Bolt Circle Hole Dia # of Holes Bolt Dia
O C R X B Y TT
in 1 4.88 1.5 2 2.12 1.36 1.88  1/4 3.5 0.69 4  5/8
mm 124 38.1 50.8 53.8 34.5 47.8 6.4 88.9 17.5 15.9
in 1 1/2 6.12 1.5 2.88 2.75 1.95 1.88  1/4 4.5 0.81 4  3/4
mm 155.4 38.1 73.2 69.9 49.50 47.8 6.4 114.3 20.6 19.1
in 2 6.5 1.5 3.62 3.31 2.44 1.94  1/4 5 0.69 8  5/8
mm 165.1 38.1 91.9 84.1 62.0 49.3 6.4 127 17.5 15.9
in 2 1/2 7.5 1.5 4.12 3.94 2.94 2.00  1/4 5.88 0.81 8  3/4
mm 190.5 38.1 104.6 100.1 74.7 50.8 6.4 149.4 20.6 19.1
in 3 8.25 1.5 5 4.62 3.57 2.06  3/8 6.62 0.81 8  3/4
mm 209.6 38.1 127 117.3 90.7 52.3 9.5 168.1 20.6 19.1
in 4 10 1.5 6.19 5.75 4.57 2.12  1/2 7.88 0.81 8  3/4
mm 254 38.1 157.2 146.1 116.1 53.8 12.7 200.2 20.6 19.1
in 6 12.5 1.5 8.5 8.12 6.72 2.12  1/2 10.62 0.88 12  3/4
mm 317.5 38.1 215.9 206.2 170.7 53.8 12.7 269.7 22.4 19.1
in 8 15 1.62 10.62 10.25 8.72 2.44  1/2 13 1 12  7/8
mm 381 41.1 269.7 260.4 221.5 62.0 12.7 330.2 25.4 22.2
in 10 17.5 1.88 12.75 12.62 10.88 2.62  1/2 15.25 1.12 16 1   
mm 444.5 47.8 323.9 320.5 276.4 66.5 12.7 387.4 28.4 25.4
in 12 20.5 2 15 14.75 12.88 2.88  1/2 17.75 1.25 16 1 1/8
mm 520.7 50.8 381 374.7 327.2 73.2 12.7 450.9 31.8 28.6
in 14 23 2.12 16.25 16.75 14.14 3.00  1/2 20.25 1.25 20 1 1/8
mm 584.2 53.8 412.8 425.5 359.2 76.2 12.7 514.4 31.8 28.6
in 16 25.5 2.25 18.5 19 16.16 3.25  1/2 22.5 1.38 20 1 1/4
mm 647.7 57.2 469.9 482.6 410.5 82.6 12.7 571.5 35.1 31.8
in 18 28 2.38 21 21 18.18 3.5  1/2 24.75 1.38 24 1 1/4
mm 711.2 60.5 533.4 533.4 461.8 88.9 12.7 628.7 35.1 31.8
in 20 30.5 2.5 23 23.12 20.20 3.75  1/2 27 1.38 24 1 1/4
mm 774.7 63.5 584.2 587.2 513.1 95.3 12.7 685.8 35.1 31.8
in 24 36 2.75 27.25 27.62 24.25 4.19  1/2 32 1.62 24 1 1/2
mm 914.4 69.9 692.2 701.5 616 106.4 12.7 812.8 41.1 38.1

Orifice Threaded Flange Union Class 300 Dimensions Threaded Orifice Class 300 Flanges

Threaded Orifice Class 300 Flanges Dimensions
Drilling
Nom Size OD Thickness OD of RF Dia at Base LTH OD of Counter Bore Counter Bore Depth (from face) Dia of Pressure Connection Bolt Circle Hole Dia # of Holes Bolt Dia
O C R X Y Qb(2) Qf(3) F G TT
in. 1 4.88 1.5 2 2.12 1.88 1.41 1.3 1.44 0.75  1/4 3.5 0.69 4     5/8
mm. 124 38.1 50.8 53.8 47.8 35.8 33 36.6 19.1 6.4 88.9 17.5 15.9
in. 1 1/2 6.12 1.5 2.88 2.75 1.88 1.99 1.89 1.47 0.72  1/4 4.5 0.81 4     3/4
mm. 155.4 38.1 73.2 69.9 47.8 50.5 48 37.3 18.3 6.4 114.3 20.6 19.1
in. 2 6.5 1.5 3.62 3.31 1.94 2.5 2.36 1.5 0.69  1/4 5 0.69 8     5/8
mm. 165.1 38.1 91.9 84.1 49.3 63.5 59.9 38.1 17.5 6.4 127 17.5 15.9
in. 2 1/2 7.5 1.5 4.12 3.94 2 3 2.84 1.75 0.56  1/4 5.88 0.81 8     3/4
mm. 190.5 38.1 104.6 100.1 50.8 76.2 72.1 44.5 14.2 6.4 149.4 20.6 19.1
in. 3 8.25 1.5 5 4.62 2.06 3.63 3.46 1.81 0.56  3/8 6.62 0.81 8     3/4
mm. 209.6 38.1 127 117.3 52.3 92.2 87.9 46 14.2 9.5 168.1 20.6 19.1
in. 4 10 1.5 6.19 5.75 2.12 4.63 4.45 1.88 0.56  1/2 7.88 0.81 8     3/4
mm. 254 38.1 157.2 146.1 53.8 117.6 113 47.8 14.2 12.7 200.2 20.6 19.1
in. 6 12.5 1.5 8.5 8.12 2.12 6.75 6.57 1.88 0.31  1/2 10.62 0.88 12     3/4
mm. 317.5 38.1 215.9 206.2 53.8 171.5 166.9 47.8 7.9 12.7 269.7 22.4 19.1
in. 8 15 1.62 10.62 10.25 2.44 8.75 8.55 2.19 0.44  1/2 13 1 12     7/8
mm. 381 41.1 269.7 260.4 62 222.3 217.2 55.6 11.2 12.7 330.2 25.4 22.2

Orifice WN Flange Union Class 400 Dimensions Class 400 WN Flanges

Class 400 WN Flanges Dimensions
Drilling Ring Type Joint
Nom Size OD Thickness OD of RF Dia at Base Dia Bevel LTH Dia of Pressure Connection Bolt Circle Hole Dia # of holes Bolt Dia Grove # Pitch Dia Groove Depth Groove width Rad at Bottom Spec Oval RH
O C R X A Y TT P E F r max W
in 4 10 1.5 6.19 5.75 4.5 3.5  1/2 7.88 1 8  7/8 R37 5.875 0.312 0.469 0.03 1.06
mm 254 38.1 157 146 114.3 88.9 12.7 200.2 25.4 22.2 149.225 7.925 11.913 0.8 26.9
in 6 12.5 1.62 8.5 8.12 6.63 4.06  1/2 10.62 1 12  7/8 R45 8.312 0.312 0.469 0.03 1.06
mm 317.5 41.1 216 206 168.4 103 12.7 269.7 25.4 22.2 211.125 7.925 11.913 0.8 26.9
in 8 15 1.88 10.62 10.25 8.63 4.62  1/2 13 1.12 12 1 R49 10.625 0.312 0.469 0.03 1.06
mm 381 47.8 270 260 219.2 117 12.7 330.2 28.4 25.4 269.875 7.925 11.913 0.8 26.9
in 10 17.5 2.12 12.75 12.62 10.75 4.88  1/2 15.25 1.25 16 1 1/8 R53 12.75 0.312 0.469 0.03 1.06
mm 444.5 53.8 324 321 273.1 124 12.7 387.4 31.8 28.6 323.850 7.925 11.913 0.8 26.9
in 12 20.5 2.25 15 14.75 12.75 5.38  1/2 17.75 1.38 16 1 1/4 R57 15 0.312 0.469 0.03 1.06
mm 520.7 57.2 381 375 323.9 137 12.7 450.9 35.1 31.8 381.000 7.925 11.913 0.8 26.9
in 14 23 2.39 16.25 16.75 14 5.88  1/2 20.25 1.38 20 1 1/4 R61 16.5 0.312 0.469 0.03 1.06
mm 584.2 60.7 413 426 355.6 149 12.7 514.4 35.1 31.8 419.100 7.925 11.913 0.8 26.9
in 16 25.5 2.5 18.5 19 16 6  1/2 22.5 1.5 20 1 3/8 R65 18.5 0.312 0.469 0.03 1.19
mm 647.7 63.5 470 483 406.4 152 12.7 571.5 38.1 34.9 469.900 7.925 11.913 0.8 30.2
in 18 28 2.62 21 21 18 6.5  1/2 24.75 1.5 24 1 3/8 R69 21 0.312 0.469 0.03 1.19
mm 711.2 66.5 533 533 457.2 165 12.7 628.7 38.1 34.9 533.400 7.925 11.913 0.8 30.2
in 20 30.5 2.75 23 23.12 20 6.62  1/2 27 1.62 24 1 1/2 R73 23 0.375 0.531 0.06 1.25
mm 774.7 69.9 584 587 508 168 12.7 685.8 41.1 38.1 584.200 9.525 13.487 1.5 31.8
in 24 36 3 27.25 27.62 24 6.88  1/2 32 1.89 24 1 3/4
mm 914.4 76.2 692.2 702 609.6 174.8 12.7 812.8 48 44.5

Orifice WN Flange Union Class 600 Dimensions Class 600 WN Flanges

Drilling Ring Type Joint
Nom Size OD Thickness OD of RF Dia at base Dia Bevel LTH Dia of Pressure Connection Bolt Circle Hole Dia # of holes Bolt Dia Grove # Pitch Dia Groove Depth Groove width Rad at Bottom Spec Oval RH
O C R X A Y TT RF RJ P E F r max W
in 1 4.88 1.5 2 2.12 1.32 3.25  1/4 3.5 0.69 0.75 4  5/8 R16 2 0.25 0.344 0.03 1
mm 124 38.1 50.8 53.8 33.5 82.6 6.4 88.9 17.5 19.1 15.9 50.8 6.35 8.738 0.8 25.4
in 1 1/2 6.12 1.5 2.88 2.75 1.9 3.38  1/4 4.5 0.81 0.88 4  3/4 R20 2.688 0.25 0.344 0.03 1
mm 155.4 38.1 73.2 69.9 48.3 85.9 6.4 114.3 20.6 22.4 19.1 68.275 6.35 8.738 0.8 25.4
in 2 6.5 1.5 3.62 3.31 2.38 3.38  1/4 5 0.69 0.75 8  5/8 R23 3.25 0.312 0.469 0.03 1.06
mm 165.1 38.1 91.9 84.1 60.5 85.9 6.4 127 17.5 19.1 15.9 82.55 7.925 11.913 0.8 26.9
in 2 1/2 7.5 1.5 4.12 3.94 2.88 3.5  1/4 5.88 0.81 0.88 8  3/4 R26 4 0.312 0.469 0.03 1.06
mm 190.5 38.1 104.6 100.1 73.2 88.9 6.4 149.4 20.6 22.4 19.1 101.6 7.925 11.913 0.8 26.9
in 3 8.25 1.5 5 4.62 3.5 3.5  3/8 6.62 0.81 0.88 8  3/4 R31 4.875 0.312 0.469 0.03 1.06
mm 209.6 38.1 127 117.3 88.9 88.9 9.5 168.2 20.6 22.4 19.1 123.825 7.925 11.913 0.8 26.9
in 4 10.75 1.5 6.19 6 4.5 4  1/2 8.5 1 1 8  7/8 R37 5.875 0.312 0.469 0.03 1.06
mm 273.1 38.1 157.2 152.4 114.3 101.6 12.7 215.9 25.4 25.4 22.2 149.225 7.925 11.913 0.8 26.9
in 6 14 1.88 8.5 8.75 6.63 4.62  1/2 11.5 1.12 1.12 12 1 R45 8.312 0.312 0.469 0.03 1.06
mm 355.6 47.8 215.9 222.3 168.4 117 12.7 292.1 28.4 28.4 25.4 211.125 7.925 11.913 0.8 26.9
in 8 16.5 2.19 10.62 10.75 8.63 5.25  1/2 13.75 1.25 1.25 12 1 1/8 R49 10.625 0.312 0.469 0.03 1.06
mm 419.1 55.6 269.7 273.1 219.2 133 12.7 349.3 31.8 31.8 28.6 269.875 7.925 11.913 0.8 26.9
in 10 20 2.5 12.75 13.5 10.75 6  1/2 17 1.38 1.38 16 1 1/4 R53 12.75 0.312 0.469 0.03 1.06
mm 508 63.5 323.9 342.9 273.1 152 12.7 431.8 35.1 35.1 31.8 323.850 7.925 11.913 0.8 26.9
in 12 22 2.62 15 15.75 12.75 6.12  1/2 19.25 1.38 1.38 20 1 1/4 R57 15 0.312 0.469 0.03 1.06
mm 558.8 66.5 381 400.1 323.9 155.4 12.7 489 35.1 35.1 31.8 381.000 7.925 11.913 0.8 26.9
in 14 23.75 2.75 16.25 17 14 6.5  1/2 20.75 1.5 1.5 20 1 3/8 R61 16.5 0.312 0.469 0.03 1.06
mm 603.3 69.9 412.8 431.8 355.6 165 12.7 527.1 38.1 38.1 35.1 419.1 7.925 11.913 0.8 26.9
in 16 27 3 18.5 19.5 16 7  1/2 23.75 1.6 1.6 20 1 1/2 R65 18.5 0.312 0.469 0.03 1.19
mm 685.8 76.2 469.9 495.3 406.4 178 12.7 603.3 41.1 41.1 38.1 469.900 7.925 11.913 0.8 30.2
in 18 29.25 3.25 21 21.5 18 7.25  1/2 25.75 1.75 1.75 20 1 5/8 R69 21 0.312 0.469 0.03 1.19
mm 743 82.6 533.4 546.1 457.2 184 12.7 654.1 44.5 44.5 41.3 533.400 7.925 11.913 0.8 30.2
in 20 32 3.5 23 24 20 7.5  1/2 28.5 1.75 1.75 24 1 5/8 R73 23 0.375 0.531 0.06 1.25
mm 812.8 88.9 584.2 609.6 508 191 12.7 723.9 44.5 44.5 41.3 584.200 9.525 13.487 1.5 31.8
in 24 37 4 27.25 28.25 24 8  1/2 33 2 2 24 1 7/8
mm 939.8 101.6 692.2 717.6 609.6 203 12.7 838.2 50.8 50.8 47.6

Orifice WN Flange Union Class 900 Dimensions Class 900 WN Flanges

Drilling Ring Type Joint
Nom Size OD Thickness OD of RF Dia at Base Dia Bevel LTH Dia of Pressure Connection Bolt Circle Hole Dia # of holes Bolt Dia Grove # Pitch Dia Groove Depth Groove Width Rad at Bottom Spec Oval RH
O C R X A Y TT P E F r max W
in 3 9.5 1.5 5 5 3.5 4  3/8 7.5 1 8  7/8 R31 4.875 0.312 0.469 0.03 1.06
mm 241.3 38.1 127 127 88.9 101.6 9.5 190.5 25.4 22.2 123.825 7.925 11.913 0.8 26.9
in 4 11.5 1.75 6.19 6.25 4.5 4.5  1/2 9.25 1.25 8 1 1/8 R37 5.875 0.312 0.469 0.03 1.06
mm 292.1 44.5 157.2 158.8 114.3 114.3 12.7 235 31.8 28.6 149.225 7.925 11.913 0.8 26.9
in 6 15 2.19 8.5 9.25 6.63 5.5  1/2 12.5 1.25 12 1 1/8 R45 8.312 0.312 0.469 0.03 1.06
mm 381 55.6 215.9 235 168.4 139.7 12.7 317.5 31.8 28.6 211.125 7.925 11.913 0.8 26.9
in 8 18.5 2.5 10.62 11.75 8.63 6.38  1/2 15.5 1.5 12 1 3/8 R49 10.625 0.312 0.469 0.03 1.06
mm 469.9 63.5 269.7 298.5 219.2 162.1 12.7 393.7 38.1 34.9 269.875 7.925 11.913 0.8 26.9
in 10 21.5 2.75 12.75 14.5 10.75 7.25  1/2 18.5 1.5 16 1 3/8 R53 12.75 0.312 0.469 0.03 1.06
mm 546.1 69.9 323.9 368.3 273.1 184.2 12.7 469.9 38.1 34.9 323.850 7.925 11.913 0.8 26.9
in 12 24 3.12 15 16.5 12.75 7.88  1/2 21 1.5 20 1 3/8 R57 15 0.312 0.469 0.03 1.06
mm 609.6 79.2 381 419.1 323.9 200.2 12.7 533.4 38.1 34.9 381.000 7.925 11.913 0.8 26.9
in 14 25.25 3.38 16.25 17.75 14 8.38  1/2 22 1.62 20 1 1/2
mm 641.4 85.9 412.8 450.9 355.6 212.9 12.7 558.8 41.1 38.1
in 16 27.75 3.5 18.5 20 16 8.5  1/2 24.3 1.75 20 1 5/8
mm 704.9 88.9 469.9 508 406.4 215.9 12.7 616 44.5 41.3
in 18 31 4 21 22.25 18 9  1/2 27 2 20 1 7/8
mm 787.4 101.6 533.4 565.2 457.2 228.6 12.7 685.8 50.8 47.6
in 20 33.75 4.25 23 24.5 20 9.75  1/2 29.5 2.12 20 2
mm 857.3 108 584.2 622.3 508 247.7 12.7 749.3 53.8 50.8
in 24 41 5.5 27.25 29.5 24 11.5  1/2 35.5 2.62 20 2 1/2
mm 1041.4 139.7 692.2 749.3 609.6 292.1 12.7 901.7 66.5 63.5

Orifice WN Flange Union Class 1500 Dimensions Class 1500 WN Flanges

Drilling Ring Type Joint
Nom Size OD Thickness OD of RF Dia at Base Dia Bevel LTH Dia of Pressure Connection Bolt Circle Hole Dia # of holes Bolt Dia Grove # Pitch Dia Groove Depth Groove Width Rad at Bottom Spec Oval RH
O C R X A Y TT P E F r max W
in 1 5.88 1.5 2 2.06 1.32 3.25  1/4 4 1 4  7/8 R16 2 0.25 0.344 0.03 1
mm 149.4 38.1 50.8 52.3 33.5 82.6 6.4 101.6 25.4 22.2 50.8 6.35 8.738 0.8 25.4
in 1 1/2 7 1.5 2.88 2.75 1.9 3.5  1/4 4.88 1.12 4 1 R20 2.688 0.25 0.344 0.03 1
mm 177.8 38.1 73.2 69.9 48.3 88.9 6.4 124 28.4 25.4 68.275 6.35 8.738 0.8 25.4
in 2 8.5 1.5 3.62 4.12 2.38 4  1/4 6.5 1 8  7/8 R24 3.75 0.312 0.469 0.03 1.06
mm 215.9 38.1 91.9 104.6 60.5 101.6 6.4 165.1 25.4 22.2 95.25 7.925 11.913 0.8 26.9
in 2 1/2 9.62 1.62 4.12 4.88 2.88 4.12  1/4 7.5 1.12 8 1 R27 4.25 0.312 0.469 0.03 1.06
mm 244.3 41.1 104.6 124 73.2 104.6 6.4 190.5 28.4 25.4 107.950 7.925 11.913 0.8 26.9
in 3 10.5 1.88 5 5.25 3.5 4.62  3/8 8 1.25 8 1 1/8 R35 5.375 0.312 0.469 0.03 1.06
mm 266.7 47.8 127 133.4 88.9 117.3 9.5 203.2 31.8 28.6 136.525 7.925 11.913 0.8 26.9
in 4 12.25 2.12 6.19 6.38 4.5 4.88  1/2 9.5 1.38 8 1 1/4 R39 6.375 0.312 0.469 0.03 1.06
mm 311.2 53.8 157.2 162.1 114.3 124 12.7 241.3 35.1 31.8 161.925 7.925 11.913 0.8 26.9
in 6 15.5 3.25 8.5 9 6.63 6.75  1/2 12.5 1.5 12 1 3/8 R46 8.312 0.375 0.531 0.06 1.12
mm 393.7 82.6 215.9 228.6 168.4 171.5 12.7 317.5 38.1 34.9 211.125 9.525 13.487 1.5 28.4
in 8 19 3.62 10.62 11.5 8.63 8.38  1/2 15.5 1.75 12 1 5/8
mm 482.6 91.9 269.7 292.1 219.2 212.9 12.7 393.7 44.5 41.3
in 10 23 4.25 12.75 14.5 10.75 10  1/2 19 2 12 1 7/8
mm 584.2 108 323.9 368.3 273.1 254 12.7 482.6 50.8 47.6
in 12 26.5 4.88 15 17.75 12.75 11.12  1/2 22.5 2.12 16 2
mm 673.1 124 381 450.9 323.9 282.4 12.7 571.5 53.8 50.8
in 14 29.5 5.25 16.25 19.5 14 11.75  1/2 25 2.38 16 2 1/4
mm 749.3 133.4 412.8 495.3 355.6 298.5 12.7 635 60.5 57.2
in 16 32.5 5.75 18.5 21.75 16 12.25  1/2 27.8 2.6 16 2 1/2
mm 825.5 146.1 469.9 552.1 406.4 311.2 12.7 704.9 66.5 63.5
in 18 36 6.38 21 23.5 18 12.88  1/2 30.5 2.88 16 2 3/4
mm 914.4 162.1 533.4 596.9 457.2 327.2 12.7 774.7 73.2 69.9
in 20 38.75 7 23 25.25 20 14  1/2 32.75 3.12 16 3
mm 984.3 177.8 584.2 641.4 508 355.6 12.7 831.9 79.2 76.2
in 24 46 8 27.25 30 24 16  1/2 39 3.62 16 3 1/2
mm 1168.4 203.2 692.2 762 609.6 406.4 12.7 990.6 91.9 88.9

Orifice WN Flange Union Class 2500 Dimensions Class 2500 WN Flanges

Drilling Ring Type Joint
Nom Size OD Thickness OD of RF Dia at Base Dia Bevel LTH Dia of Pressure Connection Bolt Circle Hole Dia # of holes Bolt Dia Grove # Pitch Dia Groove Depth Groove Width Rad at Bottom Spec Oval RH
O C R X A Y TT P E F r max W
in 1 6.25 1.5 2 2.25 1.32 3.62  1/4 4.25 1 4  7/8 R18 2.375 0.25 0.344 0.03 1
mm 158.8 38.1 50.8 57.2 33.5 91.9 6.4 108 25.4 22.2 60.325 6.35 8.738 0.8 25.4
in 1 1/2 8 1.75 2.88 3.12 1.9 4.38  1/4 5.75 1.25 4 1 1/8 R23 3.25 0.312 0.469 0.03 1.06
mm 203.2 44.5 73.2 79.2 48.3 111.3 6.4 146.1 31.8 28.6 82.55 7.925 11.913 0.8 26.9
in 2 9.25 2 3.62 3.75 2.38 5  1/4 6.75 1.12 8 1 R26 4 0.312 0.469 0.03 1.06
mm 235 50.8 91.9 95.3 60.5 127 6.4 171.5 28.4 25.4 101.6 7.925 11.913 0.8 26.9
in 2 1/2 10.5 2.25 4.12 4.5 2.88 5.62  1/4 7.75 1.25 8 1 1/8 R28 4.375 0.375 0.531 0.06 1.19
mm 266.7 57.2 104.6 114.3 73.2 142.7 6.4 196.9 31.8 28.6 111.125 9.525 13.487 1.5 30.2
in 3 12 2.62 5 5.25 3.5 6.62  3/8 9 1.38 8 1 1/4 R32 5 0.375 0.531 0.06 1.19
mm 304.8 66.5 127 133.4 88.9 168.1 9.5 228.6 35.1 31.8 127 9.525 13.487 1.5 30.2
in 4 14 3 6.19 6.5 4.5 7.5  1/2 10.75 1.62 8 1 1/2
mm 355.6 76.2 157.2 165.1 114.3 190.5 12.7 273.1 41.1 38.1
in 6 19 4.25 8.5 9.25 6.63 10.75  1/2 14.5 2.12 8 2
mm 482.6 108 215.9 235 168.4 273.1 12.7 368.3 53.8 50.8
in 8 21.75 5 10.62 12 8.63 12.5  1/2 17.25 2.12 12 2
mm 552.5 127 269.7 304.8 219.2 317.5 12.7 438.2 53.8 50.8
in 10 26.5 6.5 12.75 14.75 10.75 16.5  1/2 21.25 2.62 12 2 1/2
mm 673.1 165.1 323.9 374.7 273.1 419.1 12.7 539.8 66.5 63.5
in 12 30 7.25 15 17.38 12.75 18.25  1/2 24.38 2.88 12 2 3/4
mm 762 184.2 381 441.5 323.9 463.6 12.7 619.3 73.2 69.9

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Note: Flanges Prices are depended on Material Grades, Standards, Dimensions, Sizes, Order Quantity, etc. Prices Mentioned on website are for referance purpose only. To get market leading prices for Orifice Flange Union contact us now.

Orifice Flange Union Industries and Applications Orifice Flange Union Applications

  • Pumps, Valves, and vessels in manufacturing and food processing.
  • Pipe connections in industrial waterworks.
  • Heat exchangers and heating systems of all sizes.
  • Mining support.
  • Nuclear power systems.
  • Plumbing and mechanical systems.
  • Assemblies in the oil, gas, and petrochemical industries.
  • Fire protection systems.

Orifice Flange Union Supply and Export Network List of Cities and Countries

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Australia Austria Azerbaijan Bahrain
Bangladesh Belarus Belgium Bhutan
Bolivia Brazil Bulgaria Canada
Chile China Colombia Costa Rica
Croatia Czech Republic Aberdeen Abu Dhabi
Ahmedabad Ahvaz Al Jubail Al Khobar
Algiers Ankara Atyrau Bangkok
Bengaluru Bhopal Bogota Brisbane
Busan Cairo Calgary Caracas
Chandigarh Chennai Chiyoda Coimbatore
Colombo Courbevoie
Denmark Ecuador Egypt Estonia
Finland France Gabon Ghana
Greece Hong Kong Hungary India
Indonesia Iran Iraq Israel
Italy Japan Jordan Dallas
Dammam Doha Dubai Edmonton
Ernakulam Faridabad Geoje-si Gimhae-si
Granada Gurgaon Hanoi Haryana
Ho Chi Minh City Hong Kong Houston Howrah
Hyderabad Indore Istanbul Jakarta
Jeddah
Kazakhstan Kenya Kuwait Lebanon
Libya Lithuania Malaysia Mexico
Mongolia Morocco Netherlands New Zealand
Nigeria Norway Oman Pakistan
Peru Philippines Poland Portugal
Qatar Romania Russia Karachi
Kolkata Kuala Lumpur Kuwait City La Victoria
Lagos Lahore London Los Angeles
Ludhiana Madrid Manama Melbourne
Mexico City Milan Montreal Moscow
Mumbai Muscat Navi Mumbai New Delhi
New York Noida Perth Petaling Jaya
Pimpri-Chinchwad Port-of-Spain Pune Rajkot
Rio de Janeiro Riyadh
Saudi Arabia Serbia Singapore Slovakia
South Africa South Korea Spain Sri Lanka
Sweden Switzerland Taiwan Thailand
Trinidad & Tobago Tunisia Turkey Ukraine
United Arab Emirates (UAE) United Kingdom (UK) United States (US) Venezuela
Vietnam Yemen Santiago Secunderabad
Seoul Sharjah Singapore Surat
Sydney Tehran Thane Thiruvananthapuram
Toronto Ulsan Vadodara Visakhapatnam
Vung Tau
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