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This section provides an overview for blind flanges as well as their applications and principles. Also, please take a look at the list of 10 blind flange manufacturers and their company rankings. Here are the top-ranked blind flange companies as of December, 2024: 1.Blackhawk Machine Products, 2.Trimac Piping Solutions, 3.Kamlesh Metal (India).
Table of Contents
A blind flange, also known as a blank flange, is a fitting used in piping systems to terminate the flow of fluids. It is a type of flange that does not have a center opening, allowing it to effectively seal the end of a pipeline, duct, or other fluid transfer equipment.
Blind flanges are essential for creating a secure closure on piping systems, preventing the entry of foreign materials, and enabling easy access for inspection, cleaning, or modification. They find application in various settings including industrial plants, power generation facilities, and residential systems for emergency or temporary shutdowns.
The blind flange functions by creating a seal at the end of a pipe using a gasket placed between the flange and its mating surface. Bolts and nuts are then applied to clamp the flange in place, ensuring an even distribution of pressure to prevent leaks. The assembly must be tightened to a specific torque, often using a diagonal pattern, to ensure uniform sealing.
The selection of blind flanges is based on factors such as the type of fluid, pressure, temperature, and flow rate. Key considerations include the nominal diameter, pressure rating, gasket seat type, and material of the flange:
Blind flanges adhere to several standards, including JIS, ASME/ANSI, ISO, and JPI, each specifying dimensions, materials, and performance criteria. Gasket selection is critical, with options ranging from joint seat gaskets to spiral wound and ring joint types, depending on the operational conditions.
Blind flanges adhere to several standards, including JIS, ASME/ANSI, ISO, and JPI, each specifying dimensions, materials, and performance criteria. Typical examples are as follows:
Gasket selection is critical, with options ranging from joint seat gaskets to spiral wound and ring joint types, depending on the operational conditions such as the temperature and pressure of the fluid.
Joint Seat Gasket
Made of carbon fiber, blended with rubber and vulcanized rolled into a sheet, cut to fit the flange seating surface dimensions.
Spiral Wound Gasket
Made by overlapping a V-shaped metal hoop (thin metal sheet) and filler (tape-like sealing material) and forming it into a spiral shape. They have high sealing performance and are often used with high-temperature, high-pressure fluids.
Ring Joint
Metal gaskets made of mild steel, stainless steel, Monel, and other materials in two cross-sectional shapes: oval and octagonal.
*Including some distributors, etc.
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Jubilant Piping Solutions Pvt. Ltd., founded in 2020 in India, is a manufacturer of quality pipe fittings, flanges, and high-nickel alloys. It specializes in manufacturing buttweld pipe fittings & flanges in stainless steel and high. The company has been recognized for its expertise in the manufacturing and supply of products, including a manufacturing and supply agreement with Lantheus Holdings, Inc. The company is a family business that draws on the experience of three generations in the metal industry.
Amco Metals, headquartered in India, is a major manufacturer and supplier of metal products, catering to multiple industries since 1981. The company boasts a robust global network and offers a wide array of top-notch metal solutions. Its clientele spans many sectors, including aerospace, oil and gas, and construction. They export stainless steel, carbon steel, high nickel alloy, fasteners, and more. They are also an ISO 9001: 2015 certified company, manufacturing customized products according to the client’s requirements.
Rishabh Steel Industries, an India-based manufacturer established in 1975 and headquartered in Mumbai, Maharashtra, specializes in producing flanges and pipe fittings. Renowned for flanges and pipe fittings across various material grades, its offerings encompass an array of products such as stainless steel, duplex steel, carbon steel, alloy steel, as well as Inconel, Monel, and more. These solutions cater to diverse industries like piping, mining, construction, and chemical equipment, meeting rigorous quality standards through offered different sizes.
Kamlesh Metal (India) is an ISO certified manufacturer and supplier of pipe fittings based in Kumbharwada, Mumbai, and was founded in 2000. Products the company specializes in include flanges, fasteners, buttweld fittings, socket weld fittings, and other piping connections produced from stainless steel, carbon steel, titanium, and various alloys. It additionally manufactures metallic sheets, plates, tubes, round bars, and wires. The company exports its products internationally and has stockyards worldwide, including Saudi Arabia, Indonesia, Australia, the United States, and the United Kingdom.
Metline Industries, founded in Maharashtra, India, in 2014 is a manufacturer of Steel Pipes, Fittings, and Flanges. The company's product portfolio includes Seamless and welded steel pipes, Steel pipe fittings such as elbows, tees,and reducers and Steel flanges. The company serves markets including Medical and Healthcare, Aerospace and Defense, Consumer Goods, Industrial Manufacturing and Construction and Building. The company provides services such as Product Selection Guidance, Engineering Support, New Product Design and Development and Custom Manufacturing.
Ganga Forging Ltd, established in 1989 is based in Rajkot Gujarat, India as a major steel forging manufacturer. With a customer-centric approach the company delivers specialized customized products and services to meet the unique requirments of their clients at a competitive price. Their portfolio of the company includes a range of products such as Anchor Shackle, Big Yoke, Blind Flanges, and much more. The company has served all major industries such as mechanical, oil refineries, mining and much more.
Manifold Pipe, founded in 2016 in India, is a manufacturer and supplier of pipes. It specializes in the production of a premium range of stainless steel, including sheets, pipes, channels, hoses, fasteners, flanges, and round bars. The company has established itself as a prominent name in the industry, offering quality products to its customers. With its knowledge of manufacturing and distribution, it is equipped to meet the diverse needs of its clients..
Inco Special Alloys is a manufacturer and supplier of various alloys, including stainless steel, Incoloy, titanium, Inconel, and Hastelloy pipes and tubes. The company is an exporter and supplier of these alloys that are engineered for heavy-duty and extreme environments, exhibiting traits such as high resistance to corrosion, oxidation, carburization, pitting, crevice, corrosion cracking, and high-temperature strength. The corrosion-resistant superalloys are widely used in industries such as chemical processing, nuclear, petrochemical, aerospace, and marine.
Trimac Piping Solutions, founded in 2000 in India, is a manufacturer and supplier of flanges, pipe fittings, forged fittings, sheets and plates, and round bars. It specializes in stainless steel and carbon steel piping solutions and provides technical advice and assistance in product selection to its customers. The company is one of the largest pipe fittings manufacturers in India, and it's known for its quality and durability. In addition to pipe fittings, the company is also one of the largest flange manufacturers in India.
Ranking as of December 2024
Derivation Method| Rank | Company | Click Share |
|---|---|---|
| 1 | Blackhawk Machine Products |
31.6%
|
| 2 | Trimac Piping Solutions |
26.3%
|
| 3 | Kamlesh Metal (India) |
10.5%
|
| 4 | Amco Metals |
10.5%
|
| 5 | Jubilant Piping Solutions Pvt. Ltd |
5.3%
|
| 6 | Inco Special Alloys. |
5.3%
|
| 7 | Ganga forging Limited |
5.3%
|
| 8 | Metline Industries |
5.3%
|
Derivation Method
The ranking is calculated based on the click share within the blind flange page as of December 2024. Click share is defined as the total number of clicks for all companies during the period divided by the number of clicks for each company.Number of Employees
Newly Established Company
Company with a History
*Including some distributors, etc.
*Including some distributors, etc.
| Country | Number of Companies | Share (%) |
|---|---|---|
|
India
|
8 | 88.9% |
United States of America
|
1 | 11.1% |
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TYPE:a TYPE:b TYPE:c blank flange ■Description ・SUS304 (regular product), SUS316L ・Special dimensions can be manufactured SUS304 SUS316L
