Bhadra Engimech is one of the most leading Orifice Flanges Manufacturer in Mumbai, India. ASTM A182 Orifice (ORFF) Pipe Flanges products are designed and developed in accordance with international quality standards. One of our popular products in the Metal Market is Orifice Flanges. We are an ISO 9001:2015 certified company with a global customer base. We are offering market-leading prices on ASME B 16.47 to all our customers, with a stock of standard, grades, sizes, and types available for immediate delivery worldwide.
We are the world’s topmost Orifice Flanges Manufacturer in Mumbai, India. The performance and Dependability of Bhadra Engimech has made us the leading Stockholder, Manufacturer, Supplier, Importer, and Exporter in India. MSS SP44 products are mainly designed to control and help the flow of liquids, gases, or other materials. We offer different types of flanges such as Lap joint Flanges, Blind Flanges and many more.
Orifice Flanges Specification
| Specifications |
Details |
| Size |
½” (15 NB) to 48″ (1200NB) |
| Class |
150 LBS, 300 LBS, 600 LBS, 900 LBS, 1500 LBS, 2500 LBS, DIN Standard ND-6,10, 16, 25, 40 Etc. |
| Standards |
ANSI B16.5, ANSI B16.47, MSS SP44, ANSI B16.36, ANSI B16.48 |
| Material |
Aluminum, Brass, Bronze, Cast iron, Stainless Steel, Carbon Steel, Alloy, Nickel, Copper, etc. |
| Type |
Orifice, Slip-On, Welding Neck |
Grade Specifications of Orifice Flanges
| Material of Construction |
Standard |
Grades |
| Stainless Steel Orifice Flanges |
ASTM A182 , A240 |
F 304, 304L, 304H, 316, 316Ti, 316H, 316L, 316LN, 309S, 309H, 310S, 310H, 317, 317L, 321, 321H, 347, 347H, 201, 202, 904L |
| Carbon Steel Orifice Flanges |
ASTM A105 |
Gr. F42,46,52,56,60,65,70 |
| Alloy Steel Orifice Flanges |
ASTM A182 |
F1,F5,F9,F11,F22,F91 |
| Nickel Alloy Orifice Flanges |
ASTM SB564, SB160, SB472, SB162 |
Nickel 200, Nickel 201, Monel 400, Monel 500, Inconel 800, Inconel 825, Inconel 600, Inconel 625, Inconel 601, Hastelloy C 276, Alloy 20 |
| Copper Alloys Orifice Flanges |
ASTM SB 61 , SB62 , SB151 , SB152 |
UNS No. C 70600 (Cu-Ni 90/10), C 71500 (Cu-Ni 70/30), UNS No. C 10100, 10200, 10300, 10800, 12000, 12200 |
| Duplex Steel Orifice Flanges |
ASTM A182, A240 |
UNS F 44, F 45, F51, F 53, F 55, F 60, F 61 |
Orifice Flanges Dimension Chart
| Size (Inch) |
Size (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 (kg) |
| 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 | 7.0 |
| 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 | 30.0 |
| 10 | 250 | 445 | 46.1 | 321 | 273 | 116 | 323.8 | 2 | 387.3 | 12.7 | 16 | 1 | 165 | 1 1/8 | M27 | 41.0 |
| 12 | 300 | 520 | 49.3 | 375 | 323.8 | 129 | 381 | 2 | 450.8 | 12.7 | 16 | 1 1/8 | 180 | 1 1/4 | M30 | 62.0 |
| 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 | 84.0 |
| 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 | 111.0 |
| 18 | 450 | 710 | 58.8 | 533 | 457 | 157 | 533.4 | 2 | 628.6 | 12.7 | 24 | 1 1/4 | 205 | 1 3/8 | M33 | 138.0 |
| 20 | 500 | 775 | 62 | 587 | 508 | 160 | 584.2 | 2 | 685.8 | 12.7 | 24 | 1 1/4 | 215 | 1 3/8 | M33 | 171.0 |
| 24 | 600 | 915 | 68.3 | 702 | 610 | 167 | 692.2 | 2 | 812.8 | 12.7 | 24 | 1 1/2 | 240 | 1 5/8 | M39 | 247.0 |
About Orifice Flanges
Orifice Flanges are used in conjunction with orifice meters to measure the flow rate of either liquids or gases in pipelines. They are equipped with tapped holes for connecting pressure gauges or instruments. Orifice flanges are typically used in pairs and are available in weld neck and slip-on types. They are manufactured with high precision to meet exact flow measurement requirements and international standards.
Orifice Flanges Application and Uses
- Orifice Flanges Uses in Textile machinery
- Orifice Flanges Uses in Oil and gas industry
- Orifice Flanges Uses in Medical Gas Pipeline Systems
- Orifice Flanges Uses in Pharmaceutical processing industry
- Orifice Flanges Uses in Fluid piping.
- Orifice Flanges Uses in Modern architecture.
- Orifice Flanges Uses in Water waste projects.
