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How to Identify A Flange?

How to Identify A Flange?

Identify The Flange Type

Figuring out the type is the easiest step. All you have to do is look at it. The most common flange types are:

Weld-neck – has a tapered hub, used mostly in high-pressure systems.

Slip on – can be slipped over the pipe, welded inside and outside to increase durability, and avoid leaks.

Lap-joint – used with lap joint stub end, can be slipped over the pipe but not welded, held in place by the pressure.

Threaded – attaches to a pipe without welding, used for pipes with thick walls to create an internal thread.

Blind – used to blank off the ends of valve and pipes, suitable for high-pressure environments.

Socket-weld – connects to the pipe with one fillet weld on the outside of the flange.

Decide The Size

Measuring the size of the flange is not an easy task. You need to find the outer diameter, the inner diameter, the number of bolt holes, bolt hole diameter, and the bolt circle diameter.

Bolt circle diameter is one of the most important measurements to make when identifying a flange. It’s the measure from the centre of the bolt hole to the centre of another bolt hole located on the opposite side of the flange.

Think About The Thickness

A highly important flange parameter is its thickness. It determines the amount of pressure the flange can withstand. The thicker the flange, the higher the pressure it can work with. When measuring the thickness of the flange, you only need to measure the outer rim of the part.

Peruse About the Standards

Many standards exist for selecting the right flange for your needs. Depending on the application you are considering and the other components the flange will interact with, you can choose among ASME, ASTM, ANSI, API, MSS, AWWA, DIN, JIS, and more.

When choosing the flange, you are likely to face ANSI (American National Standards Institute), DIN (Deutsches Institut für Normung e.V.), and JIS (Japanese International Standard).

Handle The Pressure Class

The pressure class of the flange determines the pressure it can support or operate under without breaking. Each of the above-mentioned standards offers several pressure classes, from low to high. Flange pressure class must be compatible with the pressure class of the parts it works with inside the system.

Choose The Materials

Depending on the environment the flange will work in, it’s important to choose the materials it’s made of. Flanges may need to withstand pressure, humidity, high temperatures, corrosion, and more. They are commonly made of stainless or carbon steel as well as copper nickel.

At BMI, we offer all types of flanges for numerous systems, including high-quality Flanges. Our specialists can help you identify the right flange for your equipment. For more information about our products and services, please Contact for Further Details Call on +91 9152160158 or drop an Email to |

Bhansali Metalloys Inc exporters Flanges with high-quality materials. Bhansali Metalloys Inc is leading manufacturer, supplier, dealer and exporter of all types of Flanges in different sizes, materials and grades. Bhansali Metalloys Inc also provide specially designed Flanges as per the requirements and specifications of the customers. Our Alloy Steel Flanges is offered in created to order length sizes and shapes, and are obtainable at market leading costs. 

Bhansali Metalloys Inc are Exporter and Manufacturers of Industrial Flanges all over the world. Material ranges from standard forged iron, solid Steel or solid steel to special alloy materials like Monel, Stainless Steel, Nickel Alloys, Brass, Carbon Steel, Titanium, Aluminium Alloys, Duplex Steel, Inconel or Hastelloy. We Bhansali Metalloys Inc are a leading Manufacturer Supplier of High Quality Flanges in India. Bhansali Metalloys Inc is manufacturer supplier of Stainless Steel Industrial Flanges in most of the major Indian cities and all over the globe.

If we don’t have your flanges in stock, we will make it to order. we are glad to consult on the categories of flanges and different pipe fittings required for your project. Please contact us therefore we are able to start building your custom fittings ASAP.

Each ISO Flanges is otherwise designed based on the characteristics of the applying and additionally the pressure. Consequently, different industries use different flange. We also produce customized industrial flanges at our factory as per our client’s requirements. For any types of Industrial Flanges Price List Call on +91 9152160158 or drop an Email to |

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