Flanges are an essential component in piping applications, connecting pipes and equipment to ensure the safe and efficient transfer of fluids. They are used to create a secure and leak-proof connection between pipes, valves, pumps, and other equipment, and are available in a wide range of types including, Weld Neck Flanges, Slip-On Flanges, Blind Flanges, Lap Joint Flanges, Threaded Flanges, and Socket Weld Flanges and materials like Stainless steel, Duplex & Super Duplex Steel, Carbon Steel, Low-Temperature Carbon Steel, Alloy Steel, Copper Alloy Steel Flange, and Nickel Alloy to meet different requirements.

In this blog post, we will discuss the different types of flanges used in piping applications, the materials used in their production, and the standards that govern their manufacture. 

We will also highlight the advantages of choosing Arcellor Controls India as your flange supplier, and answer some frequently asked questions about flanges.

Flanges and Their Importance in Piping Applications

Flanges are essentially flat, circular disks with holes for bolts, designed to connect pipes and equipment in a piping system. They serve several critical functions, including:

Allowing for easy assembly and disassembly of piping systems for maintenance and repair

Providing a secure seal to prevent leakage or loss of pressure

Supporting heavy loads and vibrations in piping systems

Different Types of Flanges Used in Piping Applications

Flanges are available in a wide range of types, each with its own unique features and benefits. Here are some of the most common types of flanges used in piping applications:

Weld Neck Flanges:

Weld neck flanges are designed to be butt-welded to the end of a pipe, creating a smooth transition from the pipe to the flange. They are used in high-pressure and high-temperature applications, where the weld neck provides additional strength and support.

Slip-On Flanges:

Slip-on flanges are designed to slide over the end of a pipe and are then welded in place. They are typically used in low-pressure applications, where the weld provides sufficient strength and support.

Blind Flanges:

Blind flanges are used to close the end of a pipe, valve, or other equipment, creating a seal that prevents the escape of fluids or gases. They are commonly used in pressure vessel applications, where they provide a secure and leak-proof closure.

Lap Joint Flanges:

Lap joint flanges are used in applications where frequent assembly and disassembly is required. They consist of two parts: a stub end and a backing flange, which are bolted together. The stub end is welded to the end of a pipe, while the backing flange provides the connection to the equipment.

Threaded Flanges:

Threaded flanges are used in applications where a secure and leak-proof connection is required, but welding is not feasible. They are designed to be screwed onto the end of a pipe, and can be easily assembled and disassembled.

Socket Weld Flanges:

Socket weld flanges are similar to slip-on flanges, but are designed to be welded to the end of a pipe using a socket weld connection. They are commonly used in small-diameter piping applications, where they provide a secure and leak-proof connection.

Types of face type flanges

At Arcellor Controls (India) we do also offer various types of face type flanges including:

Flate Face  (FF): 

Flat face flanges are a type of flange used in piping applications that require a flat sealing surface between two flanges. These flanges are typically used in low-pressure applications where metal-to-metal sealing is required.

Flat face flanges have a flat surface with no protrusions or lips. They are usually bolted together with another flat face flange or with a raised face flange using gaskets to prevent leaks. The gasket sits between the two flanges and compresses when the bolts are tightened, creating a seal.

Raised Face (RF):

Raised face flanges are another type of flange used in piping applications that require a sealing surface between two flanges. Unlike flat face flanges, raised face flanges have a raised surface around the bolt holes to provide additional surface area for sealing.

The raised surface creates a ridge around the bolt holes, which can help to center the gasket and prevent it from slipping out of place. This can help to create a more secure seal and reduce the risk of leaks.

Raised face flanges are typically used in higher pressure and temperature applications, where a more robust seal is required. They are often used in applications involving corrosive fluids, where the flange material needs to be resistant to corrosion.

Ring Type Joint (RTJ):

Ring Type Joint (RTJ) flanges are a type of flange used in high-pressure and high-temperature piping applications. These flanges have a groove around the perimeter of the flange face that is designed to accommodate a metal ring gasket.

RTJ flanges are typically used in applications where the pressure and temperature are too high for other types of flanges, such as raised face or flat face flanges. The metal ring gasket provides a secure and reliable seal, even under extreme conditions.

Standards Governing Flange Manufacture

At Arcellor Controls (India) Flanges are produced in accordance with various international standards to ensure their quality, safety, and compatibility with other components in the piping system. We do offer flanges in ASME/ANSI Standards for piping system;

ASME/ANSI

The American Society of Mechanical Engineers (ASME) and the American National Standards Institute (ANSI) have developed a range of standards governing the design, manufacture, and testing of flanges for use in high-pressure and high-temperature applications.

ASME / ANSI B16.5 Flange Standards & Specification

Standard

ANSI B16.5, ANSI B16.47 Series A & B, MSS SP44, ASA, API-605, AWWA, Custom Drawings

Dimensions

½” (15NB) to 48” (1200 NB)

Size

150 LBS, 300 LBS, 600 LBS, 900 LBS, 1500 LBS, 2500 LBS, DIN Standard ND-6,10, 16, 25, 40 Etc.

Type

DIN2527, DIN2566, DIN2573, DIN2576, DIN2641, DIN2642, DIN2655, DIN2656, DIN2627, DIN2628, DIN2629, DIN 2631, DIN2632, DIN2633, DIN2634, DIN2635, DIN2636,DIN2637, DIN2638, DIN2673

Flange Face Type

Flate Face (FF), Raised Face (RF), Ring Type Joint (RTJ)

ANSI B16.5 Flange Material Specifications

At, Arcellor Controls India, we do offer flanges in various materials & grades such as;

Materials

Grades

Stainless Steel 

ASTM A 182, A 240 F 304, 304L, 304H, 316, 316L, 316Ti, 310, 310S, 321, 321H, 317, 347, 347H, 904L

Duplex & Super Duplex Steel

ASTM / ASME A/SA 182 F 44, F 45, F51, F 53, F 55, F 60, F 61

Carbon Steel

ASTM / ASME A/SA 105 ASTM / ASME A 350 , ASTM A 181 LF 2 / A516 Gr.70 A36, A694 F42, F46, F52, F60, F65, F706

Low-Temperature Carbon Steel

ASTM A350, LF2, LF3 

Alloy Steel 

ASTM / ASME A/SA 182 & A 387 F1, F5, F9, F11, F12, F22, F91

Copper Alloy Steel Flange

ASTM SB 61 , SB62 , SB151 , SB152 UNS No. C 70600 (Cu-Ni 90/10), C 71500 (Cu-Ni 70/30), UNS No. C 10100, 10200, 10300, 10800, 12000, 12200 

Nickel Alloy 

ASTM SB564, SB160, SB472, SB162 Nickel 200 (UNS No. N02200), Nickel 201 (UNS No. N02201), Monel 400 (UNS No. N04400), Monel 500 (UNS No. N05500), Inconel 800 (UNS No. N08800), Inconel 825 (UNS No. N08825), Inconel 600 (UNS No. N06600), Inconel 625 (UNS No. N06625), Inconel 601 (UNS No. N06601), Hastelloy C 276 (UNS No. N10276), Alloy 20 (UNS No. N08020)

Why Choose Arcellor Controls India as Your Flange Supplier?

Arcellor Controls India is one of the leading manufacturers, suppliers, stockists, and exporters of flanges in Mumbai, India. We offer a wide range of flanges in various materials, sizes, and types to meet the diverse needs of our customers.

Here are some reasons why you should choose Arcellor Controls India as your flange supplier:

High-Quality Products:

We use only high-quality materials and adhere to strict international standards to ensure the quality and durability of our products.

Competitive Prices:

We offer our products at competitive prices to ensure that our customers get the best value for their money.

Wide Range of Products:

We offer a wide range of flanges in various materials, standards such ASME B16.5 & ANSI B16.5 Sizes, and types includingWeld Neck Flanges, Slip-On Flanges, Blind Flanges, Lap Joint Flanges, Threaded Flanges, and Socket Weld Flanges to meet the diverse needs of our customers.

Global Presence:

We are well-known exporters of flanges to various countries, including Oman, Qatar, USA, Germany, UK, Brazil, Turkey, UAE, Indonesia, and Saudi Arabia, offering our customers a wide range of options to choose from.

Excellent Customer Service:

We pride ourselves on providing excellent customer service, from the initial inquiry to the delivery of the product, ensuring that our customers are satisfied with their purchase.

Final Words!..

Flanges are an essential component in piping applications, connecting pipes and equipment to ensure the safe and efficient transfer of fluids. They are available in a wide range of flanges types and materials, each with its own unique features and benefits. At Arcellor Controls India, we offer a wide range of high-quality flanges at competitive prices, adhering to strict international standards to ensure their durability and compatibility with other components in the piping system.