Stainless Steel Orifice Flanges Manufacturer and Supplier In India

Stainless steel orifice flanges are specialized pipe flanges manufactured for measuring the flow rate of fluids in pipelines and controlling fluid flow. These flanges have a unique quality: a concentric orifice plate, which is a thin metal disk with an accurately sized hole (orifice) in the center. Stainless steel orifice flanges are typically made from stainless steel materials known for their corrosion resistance and toughness. They are defined by the presence of an orifice plate sandwiched between two flanges. The orifice plate has an accurately machined hole that acts as a flow restriction, allowing for flow measurement and control. Orifice flanges are available in various pressure ratings, sizes, and orifice sizes to fit in various applications. The applications are flow measurement, fluid control, process industries, research and testing, chemical processing, utilities, power generation, and many more usages.

Naysha Steel is an outstanding manufacturer and supplier of stainless steel orifice flanges in Mumbai, India. With a strong guarantee to prime quality and client satisfaction, we offer a complete range of orifice flanges that are manufactured using highest-grade stainless steel. Our 316 stainless steel flanges are known for their strength, accuracy and excellent performance. Backed by a skilled team and up-to-date facilities, we, at Naysha Steel ensure delivery to be on time and reasonable stainless steel flange price to meet the different needs clients' needs.

stainless steel orifice flanges manufacturer

Types of Stainless Steel Orifice Flanges

Our RF orifice flanges feature a raised face that provides a surface paired for gaskets, ensuring a safe connection that is protected from leakage and used widely in various industries. Our FF stainless steel orifice flanges have a flat face without a raised surface and used in applications where the use of a raised face is not necessary or may cause interference. We also manufacture and supply other types of stainless steel flanges like 2 inch stainless steel flange, 3 inch stainless steel exhaust flange and many more.

  • Socket Weld (SW) Orifice Flanges: Our stainless steel SW orifice flanges have a socket or hollow area where the pipe end is inserted and welded.
  • Slip-On (SO) Orifice Flanges: Our SO orifice flanges have a flange face that extends beyond the pipe, allowing for easy adjustment and setup.
  • Weld Neck (WN) Orifice Flanges: Our WN orifice flanges have a coned neck that extends from the flange, that helps in easy welding and providing support.
  • Ring Type Joint (RTJ) Orifice Flanges: RTJ orifice flanges manufactured by us feature a groove shaped into the flange face, where a metal ring gasket is placed.
  • Flat Face (FF) Orifice Flanges: FF orifice flanges supplied by us have a flat face without a raised surface.

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Call us on: +91 9920190192
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Features of Stainless Steel Orifice Flanges

  • Our Stainless steel orifice flanges are highly protected from corrosion, thus making them suitable for use in corrosive environments and fluid handling applications.
  • Our Stainless steel orifice flanges offer excellent strength and toughness, ensuring reliable performance even under high-pressure and high-temperature conditions.
  • Our orifice flanges are available in various sizes, pressure ratings, and types to work with different piping systems and application requirements.
  • Our Stainless steel orifice flanges can be adapted to work with a wide range of pipes, fittings, and valves, providing an adjustable solution for connecting different components.
  • Our Orifice flanges are manufactured to provide a secure connection that is protected from leakage. With the use of proper gaskets and proper installation, they ensure a reliable seal.
  • Orifice flanges are specifically manufactured by us to fit orifice plates, which are used for accurate and controlled flow measurement in pipelines.
  • Our Stainless steel orifice flanges are manufactured for easy installation, allowing for quick and systematic assembly and disassembly when necessary.

Size of Stainless Steel Orifice Flanges

Nominal Size Outside Diameter
Min. Thickness
RF Dia.
No. of Bolt Holes Diameter of Holes Bolt Circle
SO Bore ID
WN Bore ID
Dia. Hub Base
Dia. of Hub Top
12 3.50 0.38 1.38 4 0.62 2.38 0.88 0.62 1.19 0.84 0.56 1.81
34 3.88 0.44 1.69 4 0.62 2.75 1.09 0.82 1.50 1.05 0.56 2.00
1 4.25 0.50 2.00 4 0.62 3.12 1.36 1.05 1.94 1.32 0.62 2.12
114 4.62 0.56 2.50 4 0.62 3.50 1.70 1.38 2.31 1.66 0.75 2.19
112 5.00 0.62 2.88 4 0.62 3.88 1.95 1.61 2.56 1.90 0.81 2.38
2 6.00 0.69 3.62 4 0.75 4.75 2.44 2.07 3.06 2.38 0.94 2.44
212 7.00 0.81 4.12 4 0.75 5.50 2.94 2.47 3.56 2.88 1.06 2.69
3 7.50 0.88 5.00 4 0.75 6.00 3.57 3.07 4.25 3.50 1.12 2.69
312 8.50 0.88 5.50 8 0.75 7.00 4.07 3.55 4.81 4.00 1.19 2.75
4 9.00 0.88 6.19 8 0.75 7.50 4.57 4.03 5.31 4.50 1.25 2.94
5 10.00 0.88 7.31 8 0.88 8.50 5.66 5.05 6.44 5.56 1.38 3.44
6 11.00 0.94 8.50 8 0.88 9.50 6.72 6.07 7.56 6.63 1.50 3.44
8 13.50 1.06 10.62 8 0.88 11.75 8.72 7.98 9.69 8.63 1.69 3.94
10 16.00 1.12 12.75 12 1.00 14.25 10.88 10.02 12.00 10.75 1.88 3.94
12 19.00 1.19 15.00 12 1.00 17.00 12.88 12.00 14.38 12.75 2.12 4.44
14 21.00 1.31 16.25 12 1.12 18.75 14.14 13.25 15.75 14.00 2.19 4.94
16 23.50 1.38 18.50 16 1.12 21.25 16.16 15.25 18.00 16.00 2.44 4.94
18 25.00 1.50 21.00 16 1.25 22.75 18.18 17.25 19.88 18.00 2.62 5.44
20 27.50 1.62 23.00 20 1.25 25.00 20.20 19.25 22.00 20.00 2.81 5.62
22 29.50 1.75 25.25 20 1.38 27.25 22.22 21.25 24.25 22.00 3.07 5.82
24 32.00 1.81 27.25 20 1.38 29.50 24.25 23.25 26.12 24.00 3.19 5.94

Uses of Stainless Steel Orifice Flanges

The Stainless Steel Orifice Flanges manufactured by us are mainly used with orifice plates to measure fluid flow rates in pipelines. The orifice plate creates a narrowing in the flow, which leads to pressure drop across the plate that is used for calculating the flow rate. The orifice flanges supplied by us play an important role in maintaining exact control over fluid processes. The metric stainless steel flanges have full control over certain parameters such as temperature, pressure, etc. by accurately measuring flow rates.

Quality of Stainless Steels Orifice Flange

Stainless steel orifice flanges are manufactured and supplied by us, at Naysha Steel, using prime quality stainless steel grades such as stainless steel 304 flanges or stainless steel 304l flanges, stainless steel 316 flanges or stainless steel 316l flanges, stainless steel 904l flanges and many more flanges. Our flanges offer excellent protection against corrosion and toughness, ensuring everlasting performance in all conditions. We manufacture high quality stainless steel orifice flanges using advanced and accurate manufacturing and machining techniques. We ensure exact sizes, smooth surfaces and proper adjustment of sealing surfaces in all our orifice flanges.

Get an estimate within 10 minutes!

Call us on: +91 9920190192
Call us on: [email protected]
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Stainless Steel Orifice Flanges Manufacturer : Grades & Classes

  • Grade 304 Stainless Steel Orifice Flanges
  • Grade 316 Stainless Steel Orifice Flanges
  • Grade 321 Stainless Steel Orifice Flanges
  • Grade 347 Stainless Steel Orifice Flanges
  • Grade 904L Stainless Steel Orifice Flanges
  • Class 150 Stainless Steel Orifice Flanges
  • Class 300 Stainless Steel Orifice Flanges
  • Class 600 Stainless Steel Orifice Flanges
  • Class 900 Stainless Steel Orifice Flanges
  • Class 1500 Stainless Steel Orifice Flanges
  • Class 2500 Stainless Steel Orifice Flanges

Stainless Steel Orifice Flanges Specifications

Specification Of : Stainless Steel Orifice Flange
JIS Standards 5K, 10K, 40K, 16K 20K 30K, 63K
Size Of Bore Diameter Flange NPS ≤ 10
Manufacturer Of Standard Dimensions ANSI/ASME B16.5, B16.47 Series A & B, B16.48, BS4504, BS 10, EN-1092, DIN, ANSI Flanges, ASME Flanges, BS Flanges, DIN Flanges, EN Flanges, GOST Flange, ASME/ANSI B16.5/16.36/16.47A/16.47B, MSS S44, ISO70051, JISB2220, BS1560-3.1, API7S-15, API7S-43, API605, EN1092
Pressure Rating 300# To 2500#
Flange Face Type Orifice Plate Flange/ Weld Neck Orifice Flange/ Rtj Orifice Plate/ Socket Weld Orifice Flange/ Blind Orifice Plate/ Threaded Orifice Flange.
Top Six Type Of Flange Threaded Flange, Lap Joint Flange, Socket-Weld Flange, Blind Flange, Slip-On Flange, Weld Neck Flange
Standard Materials Duplex Steel & Super Duplex Steel, Copper Nickel, Wrought Iron, Inconel, Mild Steel, Stainless Steel, Hastelloy, Cast Iron, Alloy Steel, Carbon Steel.
Thickness Length NPS ≤ 18
Size (1/2") To (48")
Manufacturing Process Forged/ Machined/ Heat Treated
Other Type Of Flange Forged/ Plate/ Threaded
Equipment Press machine, Bending machine, Pushing Machine, electric bevelling machine, Sand-blasting machine etc
Coating Oil Black Paint, Anti-rust Paint, Zinc Plated, Yellow Transparent, Cold and Hot Dip Galvanized Orifice Flange.
Application Oil And Gas Industry
Power Plants Industry
Chemical Processing
Food Processing And Manufacturing
Fossil Fuel Power Plants
Nuclear Power Application

Please find below our manufacturing and Sales network below: (Contact us for detailed information for your nearest branches)

  • Stainless Steel Orifice Flanges manufacturer and contractor in Hyderabad
  • Stainless Steel Orifice Flanges manufacturer and supplier in Chennai
  • Stainless Steel Orifice Flanges manufacturer and stockists in Pune
  • Stainless Steel Orifice Flanges manufacturer and dealer in Faridabad
  • Stainless Steel Orifice Flanges manufacturer and warehousing in Chandigarh
  • Stainless Steel Orifice Flanges manufacturer and wholesalor in Delhi
  • Stainless Steel Orifice Flanges manufacturer and trader in Coimbatore
  • Stainless Steel Orifice Flanges manufacturer and stockholder in Bangalore

Frequently Asked Questions

What is a Stainless Steel Orifice Flange?

A Stainless Steel Orifice Flange is a specialized type of flange that is designed to hold an orifice plate used for flow measurement and control in pipelines.

What grades of stainless steel are typically used for Orifice Flanges?

Common stainless steel grades used include 304, 316, 321, and others, depending on the specific application and corrosion resistance requirements.

What is the purpose of orifice flanges?

The function of the orifice flange is to measure the rate of the flow of the commodity through the piping system.

Industries served by Stainless Steel Orifice Flanges

In the oil and gas industry, blind Alloy Steel flanges are used in pipelines, storage tanks, and offshore platforms. They are employed for closing off openings during maintenance, repair, or when a branch connection is not required. Petrochemical plants utilize blind Alloy Steel flanges in equipment such as reactors, distillation columns, and storage vessels. These flanges provide a secure and leak-proof seal when closing off unused openings or isolating sections of the process.

oil gas manufacturer
Oil and Gas Industries

The oil and gas industry includes a wide range of from drilling and production to refining and marketing. Some of the major players in this include oil and gas companies, service providers, equipment.

petroleum manufacturer supplier
Petroleum Industries

In the drilling process, stainless steel is used to make drill bits, pipes, and other equipment that must withstand high pressures and temperatures. Stainless steel is also used to make pumps, valves, and fittings for the transportation.

chemical flanges
Shipbuilding in India

In storage applications, stainless steel is used to make tanks and containers that can safely store corrosive and hazardous chemicals. It is also used in piping systems for chemical transfer and distribution chemical industry.

Marking & Pricing

Products are packaged to ensure that there is no damage during of goods transport. In case of exports, standard export packaging is done with utmost care in wooden covering or boxing. All products are marked with Grade, Lot No, Size, Degree and our trade mark. On special requests we can also, make customized marking on our products.

Quality Assurance

At Naysha Steel, all fittings and flanges are subject to strict inspection at each and every stage of the production process, from starting material purchasing to product dispatch. They are visually examined for compliance to ASTM, ASME, MSS, DIN, EN, and JIS codes and standards. Upon request, official certified Inspection Agencies can be called in to witness the material reports, dimensions and quality compliance of products.

Test Certificates: Manufacturer Test Certificate as per EN 10204 / 3.1B Raw Materials Certificate, 100% Radiography Test Report, Third Party Inspection Report