What is a non-standard flange?

What is a non-standard flange?

The non-standard flange is also called custom flange,it means the flange is not as per the international standard of flanges. Commonly it is designed for special application.

Dimensions of Custom Flange :

A flange has many dimensions data to design,in the flange standards,those flanges dimensions are indicated clearly.When we design and produce the custom flanges,we do not have any standard for reference,then we have to confirm all the dimensions.When you order the custom flange, please show all the details or requirements to our factory .

Non-standard flange is usually used for customers’ special requirement. They indicate the application service ,the data,the specification and the drawing . Then we produced the special flanges according to their requirement.

Size

Non-Standard flange:1/4″-160″

DN8-DN4000

Pressure

America Series: Class 150, Class 300, Class 600, Class 900A ,Class 1500,Class 2500.

Europe Series: PN2.5, PN6, PN10, PN16, PN25, PN40, PN63, PN100, PN160, PN250, PN320, PN400.

Flange Facing Types

America Series: Flat face(FF),Raised face(RF),Tongue(T),Groove(G),Female(F),Male(M),Ring type joints face(RJ/RTJ)

Europe Series: Type A (Flat Face), Type B (Raised Face), Type C (Tongue), Type D (Groove), Type E (Spigot),Type F (Recess), Type G (O-Ring Spigot), Type H (O-Ring Groove)

Material

Carbon steel: ASTM A105, ASTM A105N, GB 20, C22.8.

Alloy steel: ASTM/ASME A182 F1-F12-F11-F22- F5-F9- F91

Stainless steel: ASTM/ASME A182 F304-304L-304H-304LN-304N

ASTM/ASME A182 F316-316L-316H-316LN-316N-316Ti

ASTM/ASME A182 F321-321H, F347-347H

Low temperature steel: ASTM/ASME A350 LF2.

High performance steel: ASTM/ASME A694 F42 , F52, F56, F60, F65, F70

Standards

Our Non-standard flange can produced based on the common standard, and do some amendment according to our customers’ requirement.

ASME ANSI B16.5,ASME ANSI B16.47.

API 605,API 6L.

MSS SP 44

CSA Z245.12

EN1092-1,EN1759-1.

DIN2630,DIN2631,DIN2632,DIN2633,DIN2634,DIN2635,DIN2636,DIN2637,DIN2638.

BS1560,BS 4504,BS 10.

AFNOR NF E29-200-1

ISO7005-1

AS2129

JIS B2220

UNI 2276. UNI 2277.UNI 2278 .UNI 6089 .UNI 6090

Application for Non-Standard flanges

Natural gas,chemical,petroleum,ship building,marine,paper making, metallurgy, electric, power, boiler , etc.

How to design Non-standard flanges on standard Nozzles?

Answer:

Custom flange on standard nozzle is not currently possible(possible enhancement).

However a separate analysis for the non standard flange can be performed using the component design option and designing a custom flange.

In the “Body Flange” Dialog there is a Button to retrieve the dimensions of a Standard Flange (see below).

1854.6 - What is a non-standard flange?

Source: China Non-standard Flanges Manufacturer – Yaang Pipe Industry (www.steeljrv.com)

(Yaang Pipe Industry is a leading manufacturer and supplier of nickel alloy and stainless steel products, including Super Duplex Stainless Steel Flanges, Stainless Steel Flanges, Stainless Steel Pipe Fittings, Stainless Steel Pipe. Yaang products are widely used in Shipbuilding, Nuclear power, Marine engineering, Petroleum, Chemical, Mining, Sewage treatment, Natural gas and Pressure vessels and other industries.)

If you want to have more information about the article or you want to share your opinion with us, contact us at sales@steeljrv.com
Please notice that you might be interested in the other technical articles we’ve published:

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Reference:

  • https://www.yaang.com

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