What are the Pressure Ratings for different SAE Flanges?

SAE Flanges are usually forged flanges designed to standard SAE J518C and ISO 6162. They are mostly used in hydraulic systems and high pressure applications. So what are the working pressures for different sizes of SAE hydraulic flanges? There are two different series divided by the pressure ratings, which are: Pressure 3000 psi series SAE … Read more

What is the reason of flange seal failure? How to prevent flange leakage?

Analysis of leakage of flange seal  and its Prevention 

Abstract: By analyzing the causes of leakage of flange seal, find out the prevention and solution.

Key words: flange  seal  leakage

Flange connection is widely used in the pipeline connection, such as  in gas, oil, water supply and drainage pipes. There many different types of flanges such as SAE flanges (code 61/62 flanges), Slip on flanges, Lapped flanges, Weld neck flanges, and so on.

As the leakage of flange seal can cause the transmission of materials, gas leakage, pollution, and even cause a major fire or personal injury accidents, it must pay attention to the flange seal. This paper analyzes the factors that cause leakage of flange  and puts forward the solution to the solution.

First, the flange

1,  Sealing surface of flange exists in several forms

(1) Flat sealing surface is a smooth plane, usually in the plane with 2-3 concentric groove, tighten the bolt, the gasket material is easy to both inside and outside the squeeze, not easy to compact, only for the pressure is not high , Non-toxic media, non-flammable and explosive occasions.

(2) The concave-convex sealing surface consists of a concave surface and a convex surface, this sealing surface gasket is easy to center, when compress it ,the gasket will not squeeze out.So it can be used for slightly higher pressure occasions.

(3) The tongue and groove sealing surface consists of a tenon and a groove surface, the gasket placed in the tank, will not be squeezed and moved, because the gasket is narrow, the gasket clamping force correspondingly smaller, its shortcomings is the complex of structure and manufacturing , replace the gasket is also more trouble. Generally used for flammable, explosive, toxic media and high pressure occasions.

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SAE flanges /hydraulic SAE flanges-hot products

SAE flanges | Code 61 flange /code 62 flanges SAE flanges / hydraulic SAE flanges are the main product of Younglee group’s factory also.  The products are made according to SAE J 518 C and ISO 6162-1/2, and they are for safe and leak-free flange connections. And now we are one of the first class quality SAE flanges manufacturer in China. Our … Read more

SAE socket weld flanges

SAE Socket Weld Flanges and Counterflanges

SAE Socket Weld Flanges are one of the main types of SAE wled flanges, which are designed and manufactured according to standard ISO 6162-1/ ISO 6162-2. Products are conform to standard SAE J518 as well.

SAE Socket weld flanges

Main styles:

Standard:

  • ISO 6162-1: for 3000 psi standard pressure series (light duty), known as code 61 flanges as well
  • ISO 6162-2: for 6000 psi high pressure series (heavy duty), known as code 62 flanges as well

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SAE Socket Weld Elbow Flanges

SAE Socket Weld Elbow Flanges are one of the popular type of SAE socket wled flanges. The elbow is usually 90°. So they are know as SAE 90° Flanges as well.

Younglee SAE-socket-weld-elbow-flange

Materials:
  • Carbon steel SAE 90° Flanges: C45, C20, CQ235, or on requests.
  • Stainless steel SAE 90° Flanges: 304, 316, 316L, 316Ti or equivalent EN/DIN stainless steel grades 1.4301, 1.4401, 1.4404, 1.4571, used for connecting stainless steel hydraulic tubing.

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SAE BSPP threaded flanges

SAE BSPP threaded flanges are the SAE threaded flanges with BSPP type thread. As a sub variety, this product followed all the descriptions of SAE threaded flanges. To find information of materials, working pressure, surface treatments and size range, please refer to SAE threaded flanges.

SAE-BSPP-thread-flanges

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SAE Flange Clamps

Forged SAE flange clamps

SAE flange clamps, hydrauic sae flange clamps

Hydraulic SAE flange clamps are designed and manufactured according to standard ISO 6162-1, ISO 6162-2. This product is widely used in hydraulic systems as safe and leak free tube and pipe connectors.

Main series of SAE flange clamps:

  • 3000 PSI Standard Pressure Series (acc. to ISO 6162-1)
  • 6000 PSI High Pressure Series (acc. to ISO 6162-2)

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