We offer flanges in multiple types and grades, including Stainless Steel, Carbon Steel, Duplex Steel, Super Duplex Steel, Alloy Steel, Nickel Alloy, Titanium Alloy, and Cupro-Nickel Alloy. With the expertise of our skilled professionals, we provide high-quality flanges known for their strength, precision, and long-lasting performance.
Material Grade
| Flange Type | Material Specification |
|---|---|
| Stainless Steel Flanges | ASTM A182 F304, F304H, F304L, F304N, F304LN, F309H, F310, F310H, F310MoLN, F316, F316H, F316L, F316N, F316LN, F316Ti, F317, F317L, F321, F321H, F347, F347H, F348, F348H, 904L |
| Carbon Steel Flanges | ASTM A105, A53, A106, API 5L |
| Low Temperature CS Flanges | ASTM A350 LF1, LF2, LF3 |
| High Yield CS Flanges | ASTM A694 F42, F52, F60, F65 |
| Alloy Steel Flanges | ASTM A182 F1, F5, F5a, F9, F11, F22, F91 |
| Duplex & Super Duplex | ASTM A182 / ASME SA182 Duplex 2205 (UNS S31803 / S32205), Super Duplex 2507 (UNS S32750 / S32760) |
| Nickel Alloy Flanges | ASTM/ASME B160, B166, B425, B564 UNS 2200 (Nickel 200), 2201 (Nickel 201), 4400 (Monel 400), 8020 (Alloy 20), 8825 (Inconel 825), 6600 (Inconel 600), 6601 (Inconel 601), 6625 (Inconel 625), 10276 (Hastelloy C276), Cupro Nickel 90/10 (C70600, 2.0872), 70/30 (C71500, 2.0882) |
| Other Steel Flanges | ASTM B381 Titanium Gr.2 (R50400, 3.7035), Gr.5 (N56400, 3.7165) ASTM B462 Alloy 20 ASTM A182 SMO 254 / AL-6XN (S31254, 1.4547) AISI 4130 (G41300, 1.7218) |
Flanges Specification
| Category | Details |
|---|---|
| Size Range | 1/2″ (15 NB) to 48″ (1200 NB), DN10 to DN5000 |
| Standards | ANSI/ASME B16.5, B16.47 A/B, B16.36, B16.48, BS4504, BS10, EN-1092, DIN, GOST, ISO7005-1, JIS B2220, API7S-15/43, MSS SP-44, UNI, SABS, AWWA, NFE, AS2129 |
| Pressure Ratings (ANSI) | Class 150, 300, 600, 900, 1500, 2500 LBS |
| DIN Pressure Ratings | PN6, PN10, PN16, PN25, PN40, PN64 |
| JIS / ASME Pressure (K Rating) | 5K, 10K, 16K, 20K, 30K, 40K, 63K |
| UNI / EN Ratings | 6 Bar, 10 Bar, 16 Bar, 25 Bar, 40 Bar |
| Common Types | Forged, Threaded, Screwed, Plate |
| Face Types | RF (Raised Face), RTJ (Ring Type Joint), FF (Flat Face), LMF, LJF, SMF, Large/Small Tongue & Groove |
| Production Technique | Forged, Heat-treated, and Machined |
| Testing Methods | Direct-reading Spectrograph, Hydrostatic Test, X-ray, Ultrasonic, Magnetic Particle |
| Test Certificates | EN 10204/3.1B, Raw Material Cert., 100% Radiography, Third-Party Inspection Report |
| Surface Coating Options | Oil Black Paint, Anti-rust Paint, Zinc Plated, Yellow Transparent, Hot/Cold Dip Galvanized |
| Equipment Used | Press Machine, Bending Machine, Beveling Machine, Sandblasting Machine |
| Special Designs | Available as per client drawings |
| Configurations Available | Equal and Reducing, 15 NB (1/2″) to 200 NB (8″) |
| Common Applications | Bitumen Upgraders, Heavy Oil Refineries, Nuclear Power, Petrochemical Plants, Acid Processing |
Types of Flanges
Slip - On Flange
Slip-On Flanges are widely used for low-pressure applications and provide an easy, cost-effective solution for pipe connections. These flanges are designed to slip over the pipe before being welded in place, ensuring secure and leak-proof connections. They are available in various materials and pressure ratings, making them suitable for industries such as oil & gas, petrochemicals, water treatment, power plants, and general piping systems.
Key Features
- Designed to slip over the pipe and welded for a secure, leak-proof connection.
- Available in various materials, including stainless steel, carbon steel, alloy steel, and exotic alloys.
- Suitable for low to moderate pressure applications.
- Available in different pressure ratings, including 150#, 300#, 600#, and higher as per industry requirements.
- Widely used in industries such as oil & gas, petrochemicals, water treatment, power plants, and general piping systems.
Welding Neck Flange
Welding Neck Flanges are designed for high-pressure and high-temperature applications, offering superior strength and durability. These flanges have a long tapered hub that provides excellent reinforcement to the piping system, reducing stress concentrations at the flange connections. They are commonly used in critical industries such as oil & gas, petrochemicals, power plants, and shipbuilding, where reliability and leak-proof performance are essential.
Key Features
- Designed with a long tapered hub that provides reinforcement and reduces stress concentration
- Ideal for high-pressure and high-temperature applications
- Available in various materials, including stainless steel, carbon steel, alloy steel, and nickel alloys
- Manufactured in different pressure ratings, including 150#, 300#, 600#, 900#, 1500#, and 2500#
- Commonly used in industries such as oil & gas, petrochemicals, power plants, shipbuilding, and process industries
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 various materials, including stainless steel, carbon steel, alloy steel, and nickel alloys
- Manufactured in multiple pressure ratings, including 150#, 300#, 600#, 900#, 1500#, and 2500#
- Commonly used in industries such as oil & gas, petrochemicals, power plants, water treatment, and chemical processing
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. Socket Weld Flanges are commonly used in industries such as oil & gas, petrochemicals, power plants, and chemical processing, where high-performance sealing and structural integrity are essential.
Key Features
- Features a socket-like bore where the pipe is inserted before being welded for a strong connection
- Provides excellent fatigue resistance, making it ideal for high-pressure applications
- Available in various materials, including stainless steel, carbon steel, alloy steel, and exotic alloys
- Manufactured in multiple pressure ratings, including 150#, 300#, 600#, 900#, 1500#, and 2500#
- Commonly used in oil & gas, petrochemical, power generation, and chemical processing 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 various materials, including 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. Long Weld Neck Flanges 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
- 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