Hastelloy Orifice Flanges Manufacturer and Supplier In India

Hastelloy orifice flanges are a specific type of flange made from Hastelloy alloys, which are known for their outstanding corrosion resistance properties. Orifice flanges are manufactured with a bore (opening) that contains an orifice plate, which is used to measure fluid flow rates or control flow in pipelines. Hastelloy orifice flanges are circular flanges with a central bore (hole) that contains an orifice plate. The orifice plate typically has an accurate opening or aperture, which allows fluid to flow through. The flow rate of the fluid passing through the orifice is measured or controlled by the size of the opening in the plate. These flanges are typically used in flow measurement and control systems. Various applications of these flanges are flow measurement, process control, power generation, pharmaceutical and food processing, HVAC systems and many others.

Naysha Steel is a leading Hastelloy Orifice Flanges manufacturer and supplier in Mumbai, India. With a reputation for quality and reliability, they offer a wide range of flanges that are manufactured using high-grade Hastelloy materials. Their products are known for their exceptional corrosion resistance, durability, and precise dimensions. Naysha Steel caters to various industries, including oil and gas, chemical, petrochemical, and power generation. Committed to customer satisfaction, they ensure timely delivery and competitive pricing. With their expertise and cutting-edge infrastructure, Naysha Steel is a trusted name in the field of Hastelloy Flanges manufacturer in India.

orifice flanges

Types of Hastelloy Orifice Flanges

They are commonly used in high-pressure applications and provide a smooth transition for fluid flow, minimizing turbulence and pressure drop. They are easy to align and install, making them suitable for applications with lower pressure and temperature requirements. They are suitable for high-pressure applications and offer reliable performance in corrosive environments. They are used in applications where periodic flow measurement or isolation is required.

  • Weld Neck Orifice Flanges: These flanges have a long tapered hub and a neck that provides reinforcement and strength.
  • Slip-On Orifice Flanges: Slip-on orifice flanges have a low-profile design and easily slide onto the pipe.
  • Threaded Orifice Flanges: Threaded orifice flanges have internal threads that allow them to be screwed onto threaded pipes or fittings.
  • Socket Weld Orifice Flanges: These flanges have a socket weld connection that provides a strong and secure joint.
  • Blind Orifice Flanges: Blind orifice flanges are solid disks without a bore. They are used to close off the end of a pipeline or vessel and are often installed as a blanking plate for future orifice installation.

Features of Hastelloy Orifice Flanges

  • Hastelloy Orifice flanges offer excellent resistance to corrosion, including resistance to both general and localized corrosion.
  • Hastelloy alloys used in orifice flanges provide exceptional strength, allowing them to withstand high pressure and temperature conditions without deformation or failure.
  • Hastelloy Orifice flanges are designed with precision to accommodate orifice plates, which enable accurate flow measurement and control.
  • These flanges are designed to provide a reliable and leak-proof seal when properly installed.
  • Hastelloy Orifice flanges are designed for easy installation and maintenance.

Size of Hastelloy 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 Hastelloy Orifice Flanges

Hastelloy Orifice flanges are widely used in industries that require precise flow measurement and control. One primary application is in the oil and gas industry, where these flanges play a critical role in measuring and regulating the flow of fluids, such as oil, gas, and various chemicals, in pipelines and refineries. Their corrosion resistance properties make them suitable for handling corrosive substances encountered in these industries. Hastelloy flanges are also extensively utilized in chemical processing plants.

Quality of Hastelloy Orifice Flanges

High-quality Hastelloy Orifice flanges are manufactured using top-grade Hastelloy alloys known for their exceptional corrosion resistance and mechanical strength. Reputable manufacturers adhere to stringent quality control measures throughout the production process to ensure consistent and reliable performance. They source materials from trusted suppliers and conduct rigorous testing to verify the alloy composition, ensuring the flanges meet the required specifications.

Hastelloy Orifice Flanges Manufacturer : Grades & Classes

  • Hastelloy C276
  • Hastelloy C22
  • Hastelloy B2
  • Hastelloy X
  • Hastelloy G-30
  • Class 150
  • Class 300
  • Class 600
  • Class 900
  • Class 1500
  • Class 2500

Hastelloy Orifice Flanges Specifications

Specification Of : Hastelloy 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)

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

Frequently Asked Questions

What is a Hastelloy orifice flange?

A Hastelloy orifice flange is a specialized type of flange made from Hastelloy alloy, a corrosion-resistant, high-performance nickel-based alloy. These flanges are designed to be used in orifice metering applications for accurate measurement and control of fluid flow.

What types of Hastelloy alloys are typically used for orifice flanges?

Various Hastelloy alloys are used based on the specific application requirements. Common Hastelloy alloys used include C276, C22, B2, and others. The choice depends on factors such as the fluid being handled and the environmental conditions.

Can Hastelloy orifice flanges be used with non-Hastelloy components?

Yes, Hastelloy orifice flanges can be used in conjunction with other materials, such as carbon steel or stainless steel piping, as long as the compatibility of materials is considered, and appropriate gaskets and sealing methods are used to prevent corrosion or leakage.

What are the different types of orifice flange taps?

Orifice flanges can have different types of taps, such as single or dual taps. Dual taps are used for more accurate measurement by allowing pressure readings at both the upstream and downstream sides of the orifice plate.

Industries served by Hastelloy 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