Flanges
At JUPITER STAINLESS INTERNATIONAL, we are proud to be a trusted manufacturer and supplier of high-quality flanges, offering a comprehensive range of materials such as Stainless Steel, Carbon Steel, Alloy Steel, Duplex Steel, Monel, Inconel, Hastelloy, Alloy 20, Titanium, and Cupro Nickel. Our flanges are precision-engineered to meet the highest standards of durability, reliability, and performance, ensuring seamless operation in various industrial environments.
Designed to provide secure and leak-proof connections, our flanges are ideal for applications in pipelines, pressure vessels, heat exchangers, and industrial processing systems. Whether you're operating in oil and gas, chemical processing, power generation, or marine industries, JUPITER STAINLESS INTERNATIONAL's flanges offer exceptional resistance to corrosion, high pressure, and extreme temperatures, ensuring optimal functionality and extended service life.
Backed by advanced manufacturing techniques and stringent quality checks, our flanges are tailored to meet the diverse requirements of our customers. With a commitment to excellence and customer satisfaction, JUPITER STAINLESS INTERNATIONAL is your reliable partner for delivering superior flange solutions that drive efficiency and ensure operational success.
Dimensional Table for Flanges
| Flange Type | Size Range | Pressure Class | Face Type | Standards | Dimensions |
|---|---|---|---|---|---|
| Slip-On Flange | 1/2" (15 NB) to 48" (1200 NB) | 150# to 2500#, PN6 to PN64 | FF, RF | ANSI, ASME, BS, DIN, EN | ANSI/ASME B16.5, B16.47, BS4504, DIN, EN-1092 |
| Welding Neck Flange | 1/2" (15 NB) to 48" (1200 NB) | 150# to 2500#, PN6 to PN64 | RF, RTJ | ANSI, ASME, BS, DIN, EN | ANSI/ASME B16.5, B16.47, BS4504, DIN, EN-1092 |
| Blind Flange | 1/2" (15 NB) to 48" (1200 NB) | 150# to 2500#, PN6 to PN64 | FF, RF, RTJ | ANSI, ASME, BS, DIN, EN | ANSI/ASME B16.5, B16.47, BS4504, DIN, EN-1092 |
| Socket Weld Flange | 1/2" (15 NB) to 24" (600 NB) | 150# to 2500#, PN6 to PN64 | RF | ANSI, ASME, BS, DIN, EN | ANSI/ASME B16.5 |
| Threaded Flange | 1/2" (15 NB) to 24" (600 NB) | 150# to 600# | RF | ANSI, ASME, BS, DIN, EN | ANSI/ASME B16.5 |
| Long Weld Neck Flange | 1/2" (15 NB) to 24" (600 NB) | 150# to 2500# | RF, RTJ | ANSI, ASME, BS, DIN, EN | ANSI/ASME B16.5 |
| Ring Type Joint Flange | 1/2" (15 NB) to 48" (1200 NB) | 300# to 2500# | RTJ | ANSI, ASME, BS, DIN, EN | ANSI/ASME B16.5, B16.47 |
| Spectacle Blind Flange | 1/2" (15 NB) to 48" (1200 NB) | 150# to 2500# | RF, RTJ | ANSI, ASME, BS, DIN, EN | ANSI/ASME B16.48 |
Types of Flanges
Slip-On Flange
A Slip-On Flange is commonly used for low-pressure applications and is designed to slip over the pipe before being welded in place, ensuring a secure and leak-proof connection. These flanges are a cost-effective choice for connecting piping systems and are widely used in oil & gas, petrochemicals, water treatment, power plants, and general industrial piping. They are available in various materials and pressure ratings, making them suitable for versatile applications.
Key Features:
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Designed to slip over the pipe and welded for a secure, leak-proof connection.
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Available in various materials, including stainless steel, carbon steel, alloy steel, and exotic alloys.
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Suitable for low to moderate pressure applications.
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Available in different pressure ratings, including 150#, 300#, 600#, and higher as per industry requirements.
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Widely used in oil & gas, petrochemicals, water treatment, power plants, and general piping systems.
Welding Neck Flange
A Welding Neck Flange is designed for high-pressure and high-temperature services, featuring a long tapered hub for added reinforcement and stress reduction at the flange-pipe joint. These flanges are highly reliable and commonly used in critical systems in oil & gas, petrochemicals, shipbuilding, power generation, and process industries where strength, durability, and leak-proof performance are vital.
Key Features:
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Designed with a long tapered hub that provides reinforcement and reduces stress concentration.
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Ideal for high-pressure and high-temperature applications.
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Available in stainless steel, carbon steel, alloy steel, and nickel alloy materials.
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Manufactured in pressure ratings including 150#, 300#, 600#, 900#, 1500#, and 2500#.
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Commonly used in oil & gas, petrochemical, power plant, shipbuilding, and process piping systems.
Blind Flange
Blind Flanges are solid disk-shaped flanges designed to close the end of a piping system or pressure vessel openings. These flanges provide a reliable solution for isolating a pipeline, facilitating maintenance, and pressure testing. With no center bore, Blind Flanges ensure zero leakage, making them ideal for high-pressure and high-temperature applications across industries such as oil & gas, petrochemicals, power plants, and water treatment.
Key Features:
Solid, flat-faced flange designed to close the end of pipelines and pressure vessels.
Provides a secure and leak-proof seal, preventing flow and allowing for system maintenance.
Available in stainless steel, carbon steel, alloy steel, and nickel alloys.
Manufactured in pressure ratings: 150#, 300#, 600#, 900#, 1500#, and 2500#.
Used in oil & gas, petrochemical, power, water treatment, and chemical industries.
Socket Weld Flange
Socket Weld Flanges are designed for small-diameter, high-pressure piping systems, ensuring strong and durable connections. These flanges feature a socket-like bore where the pipe is inserted before being welded, providing excellent strength and fatigue resistance. They are widely used in oil & gas, petrochemicals, power plants, and chemical processing industries where high-performance sealing and structural integrity are essential.
Key Features:
Features a socket-like bore for strong, welded pipe connections.
Excellent fatigue resistance, suitable for high-pressure applications.
Available in stainless steel, carbon steel, alloy steel, and exotic alloys.
Offered in pressure classes: 150#, 300#, 600#, 900#, 1500#, and 2500#.
Used in oil & gas, petrochemical, power generation, and chemical industries.
Threaded Flange
Threaded Flanges, also known as screwed flanges, are designed for easy installation without the need for welding. These flanges have an internal thread that allows them to be screwed onto a matching pipe, making them ideal for low-pressure and non-critical applications. They are commonly used in industries such as plumbing, water supply, gas processing, and small-diameter piping systems where welding is impractical or not permitted.
Key Features:
Features an internally threaded bore that allows for easy installation without welding.
Ideal for low-pressure and non-critical applications where welding is impractical.
Available in stainless steel, carbon steel, alloy steel, and brass.
Manufactured in standard pressure ratings such as 150#, 300#, 600#, and higher as required.
Commonly used in plumbing, water supply, gas distribution, and chemical processing applications.
Long Weld Neck Flange
Long Weld Neck Flanges are specially designed for high-pressure and high-temperature applications, offering enhanced structural reinforcement. These flanges feature an extended neck that provides additional support to the piping system, reducing stress concentrations and improving durability. They are commonly used in pressure vessels, heat exchangers, refineries, and chemical processing industries where strength and reliability are crucial.
Key Features:
Extended neck design provides superior reinforcement and reduces stress concentrations.
Ideal for high-pressure and high-temperature applications requiring robust connections.
Available in stainless steel, carbon steel, alloy steel, and special-grade materials.
Manufactured in pressure ratings such as 150#, 300#, 600#, 900#, 1500#, and 2500#.
Commonly used in pressure vessels, heat exchangers, refineries, and petrochemical industries.
Ring Type Joint Flange
Ring Type Joint (RTJ) Flanges are designed for high-pressure and high-temperature applications, ensuring a leak-proof and secure connection. These flanges feature a precision-machined groove where a metal ring gasket is seated, providing superior sealing performance. RTJ Flanges are commonly used in critical industries such as oil & gas, petrochemical, refineries, and offshore drilling, where extreme conditions demand reliable and durable connections.
Key Features:
Features a machined groove for a metal ring gasket, ensuring a high-integrity seal.
Designed for extreme high-pressure and high-temperature environments.
Available in materials such as stainless steel, carbon steel, alloy steel, and exotic alloys.
Manufactured in pressure ratings including 600#, 900#, 1500#, and 2500#.
Commonly used in oil & gas, refineries, petrochemicals, and offshore drilling applications.