10 Blind Flange Manufacturers in 2024
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 April, 2024: 1.Trimac Piping Solutions, 2.Blackhawk Machine Products, 3.Amco Metals.
Table of Contents
What Is a Blind Flange?
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.
Uses of Blind Flanges
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.
Principle of Blind Flanges
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.
Types of Blind Flanges
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:
- Nominal Diameter: Matches the diameter of the piping system, ranging from 10A to 1,500A in JIS standards.
- Nominal Pressure: Chosen based on the fluid pressure and temperature, with standards providing various classifications such as 5K to 63K for JIS and Class 150 to 2500 for ASME/ANSI.
- Gasket Seat Types: Include full-face, flat-face, fitted, and groove types, selected according to the gasket design.
- Material: Generally includes carbon steel and stainless steel, with specific alloys chosen based on environmental and operational requirements.
Other Information on Blind Flanges
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.
1. Standard
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:
- ASME/ANSI B16.5 Pipe Flanges and Flanged Fittings, NPS1/2 Through NPS24 Metric/Inch Standard
- ISO 7005-1 Pipe flanges-Part 1: Steel flanges for industrial and general service piping systems.
2. Gasket
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.
List of 10 Blind Flange Manufacturers
*Including some distributors, etc.
Sort by Features
- Default
- Company Size: largest first
- Year Founded: oldest first
- Year Founded: earliest first
Sort by Area
- United States of America
- India
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Jubilant Piping Solutions Pvt. Ltd
Blind Flanges
Manufacturer Overview
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.
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Amco Metals
Blind Flanges
Manufacturer Overview
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.
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Rishabh Steel Industries.
Blind Flange
Manufacturer Overview
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.
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Kamlesh Metal (India)
Blind Flanges
Manufacturer Overview
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.
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Metline Industries
Blind Flanges
Manufacturer Overview
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.
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Ganga forging Limited
Blind Flanges
Manufacturer Overview
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.
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Manifold Pipe Solution Inc.
Blind Flanges
Company Overview
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..
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Inco Special Alloys.
Blind Flanges
Company Overview
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.
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Trimac Piping Solutions
Blind Flanges
Company Overview
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.
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Blind Flange Manufacturer Ranking
*Including some distributors, etc.Ranking as of April 2024
Derivation Method| Rank | Company | Click Share |
|---|---|---|
| 1 | Trimac Piping Solutions |
28.6%
|
| 2 | Blackhawk Machine Products |
28.6%
|
| 3 | Amco Metals |
14.3%
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| 4 | Inco Special Alloys. |
7.1%
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| 5 | Kamlesh Metal (India) |
7.1%
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| 6 | Ganga forging Limited |
7.1%
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| 7 | Metline Industries |
7.1%
|
Derivation Method
The ranking is calculated based on the click share within the blind flange page as of April 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
- Manifold Pipe Solution Inc.: 2016 (8 years ago)
- Amco Metals: 1981 (43 years ago)
Company with a History
- Amco Metals: 1981 (43 years ago)
- Manifold Pipe Solution Inc.: 2016 (8 years ago)
Blind Flange Manufacturers in United States
*Including some distributors, etc.
Global Distribution of Blind Flange Manufacturers by Country
*Including some distributors, etc.
| Country | Number of Companies | Share (%) |
|---|---|---|
India
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8 | 88.9% |
United States of America
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1 | 11.1% |
