ASME B16.5 Raised Face Orifice Flange, ANSI B16.5 Orifice Flanges, ASME / ANSI B16.5 Orifice Flanges, Carbon Steel Orifice Flange, Best Deals on Raised Face Orifice Flanges, Nickel Alloy Orifice Flanges, Class 300 Orifice Flanges, Stainless Steel Orifice Flange Supplier in India.
Kalpataru Piping Solutions is a popular supplier of Orifice Flanges, which is a ductile alloy with resistance to a wide variety of corrosive conditions. Stainless Steel Orifice Flanges is resistant to sea water and steam at high temperatures as well as to salt and caustic solutions. Carbon Steel Orifice Flanges is a nickel-copper alloy that is resistant to corrosion in many environments. Alloy Steel Orifice Flanges shows high strength and excellent corrosion resistance in a range of acidic and alkaline environments and it's especially suitable for reducing conditions. Super Duplex Steel Orifice Flanges is a solid solution alloy that can be hardened by the process of cold working. Companies in the marine, oil, and chemical processing industries use a great deal of Nickel Alloy Orifice Flanges in their machinery. Inconel Orifice Flanges is a nickel alloy, prized for its strength and ability to resist corrosion. Monel Orifice Flanges is an alloy with high strength and excellent corrosion resistance in a range of acidic and alkaline environments and especially suitable for reducing conditions. Hastelloy Orifice Flanges also has good ductility and thermal conductivity. Titanium Orifice Flanges is well known for its high strength and corrosion resistant properties. Copper Nickel Orifice Flanges works in a wide range of temperatures, and is available in multiple forms for a variety of products. Alloy 20 Orifice Flanges is a nickel-copper single-phase alloy most commonly supplied in hot worked and annealed condition.
Large Selection of Inconel Orifice Flanges, Alloy Steel Orifice Flanges, ANSI B16.36 Orifice Flange, ANSI B16.36 150 LBS Orifice Flange, High Quality Duplex Steel Slip-on Flanges, Hastelloy Orifice Flange Dealer, Class 1500 Orifice Flanges, Monel Orifice Flanges, SS Orifice Flanges, ANSI/ASME B16.5 Class 600 Orifice Flange Exporter.

ASME B16.36 Orifice Flanges Specification
Orifice Flanges Material & Grades
Stainless Steel Orifice Flanges | |
ASTM A182 F 304, 304L, 304H, 309, 310, 310S, 316, 316L, 317, 317L, 321, 321H, 347, 347H, 446, 904L |
Carbon Steel Orifice Flanges | |
ASTM A105, ASTM A694 Gr. F42, 46, 52, 56, 60, 65, 70 |
Alloy Steel Orifice Flanges | |
ASTM A182, F1, F5, F9, F11, F22, F91 |
Duplex Steel Orifice Flanges | |
ASTM A182, F44, F45, F51, F53, F55, F60, F61 |
Super Duplex Orifice Flanges | |
ASTM A182, F44, F45, F51, F53, F55, F60, F61 |
High Nickel Alloy Orifice Flanges | |
ASTM B564, B160, B472, B162, Nickel 200 (UNS No. No2200), Nickel 201 (UNS No. N02201), Monel 400 (UNS No. N04400), Monel 500 (UNS No. N05500), Inconel 800 (UNS No. N08800), Inconel 825 (UNS No. N08825), Inconel 600 (UNS No. N06600), Inconel 625 (UNS No. N06625), Inconel 601 (UNS No. N06601), Hastelloy C 276 (UNS No. N10276), Alloy 20 (UNS No. N08020), Titanium (Grade 2 & 5), Cupro-Nickel 70/30, Cupro-Nickel 90/10. |
Low Temperature Carbon Steel Orifice Flanges | |
ASTM A350, LF2, LF3 |
Dimensions of Orifice Flanges

Class 150 Orifice Flange Standard Dimensions
Nominal size | O | C | R | X | A | Y | Tg | No. of holes | Diam. of holes | Diam. of bolts | Diam. of bolt circle | |
in. | 1″ | 4.88 | 1.5 | 2 | 2.12 | 1.32 | 3.25 | 01/04/07 | 4 | 0.69 | 5/8″ | 3.5 |
mm. | 124 | 38.1 | 50.8 | 53.8 | 33.5 | 82.6 | 6.4 | 17.5 | 15.9 | 88.9 | ||
in. | 1 1/2″ | 6.12 | 1.5 | 2.88 | 2.75 | 1.9 | 3.38 | 01/04/07 | 4 | 0.81 | 3/4″ | 4.5 |
mm. | 155.4 | 38.1 | 73.2 | 69.9 | 48.3 | 85.9 | 6.4 | 20.6 | 19.1 | 114.3 | ||
in. | 2″ | 6.5 | 1.5 | 3.62 | 3.31 | 2.38 | 3.38 | 01/04/07 | 8 | 0.69 | 5/8″ | 5 |
mm. | 165.1 | 38.1 | 91.9 | 84.1 | 60.5 | 85.9 | 6.4 | 17.5 | 15.9 | 127 | ||
in. | 2 1/2″ | 7.5 | 1.5 | 4.12 | 3.94 | 2.88 | 3.5 | 01/04/07 | 8 | 0.81 | 3/4″ | 5.88 |
mm. | 190.5 | 38.1 | 104.6 | 100.1 | 73.2 | 88.9 | 6.4 | 20.6 | 19.1 | 149.4 | ||
in. | 3″ | 8.25 | 1.5 | 5 | 4.62 | 3.5 | 3.5 | 03/08/07 | 8 | 0.81 | 3/4″ | 6.62 |
mm. | 209.6 | 38.1 | 127 | 117.3 | 88.9 | 88.9 | 9.5 | 20.6 | 19.1 | 168.1 | ||
in. | 4″ | 10 | 1.5 | 6.19 | 5.75 | 4.5 | 3.62 | 01/02/07 | 8 | 0.81 | 3/4″ | 7.88 |
mm. | 254 | 38.1 | 157.2 | 146.1 | 114.3 | 91.9 | 12.7 | 20.6 | 19.1 | 200.2 | ||
in. | 6″ | 12.5 | 1.5 | 8.5 | 8.12 | 6.63 | 3.94 | 01/02/07 | 12 | 0.88 | 3/4″ | 10.62 |
mm. | 317.5 | 38.1 | 215.9 | 206.2 | 168.4 | 100.1 | 12.7 | 22.4 | 19.1 | 269.7 | ||
in. | 8″ | 15 | 1.62 | 10.62 | 10.25 | 8.63 | 4.38 | 01/02/07 | 12 | 1 | 7/8″ | 13 |
mm. | 381 | 41.1 | 269.7 | 260.4 | 219.2 | 111.3 | 12.7 | 25.4 | 22.2 | 330.2 | ||
in. | 10″ | 17.5 | 1.88 | 12.75 | 12.62 | 10.75 | 4.62 | 01/02/07 | 16 | 1.12 | 1″ | 15.25 |
mm. | 444.5 | 47.8 | 323.9 | 320.5 | 273.1 | 117.3 | 12.7 | 28.4 | 25.4 | 387.4 | ||
in. | 12″ | 20.5 | 2 | 15 | 14.75 | 12.75 | 5.12 | 01/02/07 | 16 | 1.25 | 1 1/8″ | 17.75 |
mm. | 520.7 | 50.8 | 381 | 374.7 | 323.9 | 130 | 12.7 | 31.8 | 28.6 | 450.9 | ||
in. | 14″ | 23 | 2.12 | 16.25 | 16.75 | 14 | 5.62 | 01/02/07 | 20 | 1.25 | 1 1/8″ | 20.25 |
mm. | 584.2 | 53.8 | 412.8 | 425.5 | 355.6 | 142.7 | 12.7 | 31.8 | 28.6 | 514.4 | ||
in. | 16″ | 25.5 | 2.25 | 18.5 | 19 | 16 | 5.75 | 01/02/07 | 20 | 1.38 | 1 1/4″ | 22.5 |
mm. | 647.7 | 57.2 | 469.9 | 482.6 | 406.4 | 146.1 | 12.7 | 35.1 | 31.8 | 571.5 | ||
in. | 18″ | 28 | 2.38 | 21 | 21 | 18 | 6.25 | 01/02/07 | 24 | 1.38 | 1 1/4″ | 24.75 |
mm. | 711.2 | 60.5 | 533.4 | 533.4 | 457.2 | 158.8 | 12.7 | 35.1 | 31.8 | 628.7 | ||
in. | 20″ | 30.5 | 2.5 | 23 | 23.12 | 20 | 6.38 | 01/02/07 | 24 | 1.38 | 1 1/4″ | 27 |
mm. | 774.7 | 63.5 | 584.2 | 587.2 | 508 | 162.1 | 12.7 | 35.1 | 31.8 | 685.8 | ||
in. | 24″ | 36 | 2.75 | 27.25 | 27.62 | 24 | 6.62 | 01/02/07 | 24 | 1.62 | 1 1/2″ | 32 |
mm. | 914.4 | 69.9 | 692.2 | 701.5 | 609.6 | 168.1 | 12.7 | 41.1 | 38.1 | 812.8 |
Dimensions of Class 300 Orifice Flange
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 |
ASME B16.5 Orifice Flanges Price List
We offer wide range of industrial Orifice Flanges that in compliance with IS, BS and DIN standards at best market prices in India. To know more about the latest price of Stainless Steel Orifice Flanges Please Call +91 22-66337137 or Send an Email to info@flangesbolts.com
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Orifice Flanges Application Area

Our products range of Orifice Flanges find application in various areas such as: Petro-Chemical Industries, Ship Building Industries, Heavy Engineering Industries, Fertilizer Plants, power Generation Units ( Nuclear, Hydro or Thermal), Civil Industries, Oil Expansion Projects, Off Shore & On Shore Oil Towers, Valves, Vessels, Pumps, Railways, Steel Plants, Civil Construction Industries, Home Fittings etc.