KLAW® Cryogenic/Industrial Gases Couplings

KLAW® is a globally renowned UK based manufacturer of Safety Break Away Couplings (BAC) and Emergency Release Couplings (ERC); crucial for the reliable and safe transfer of hazardous and non-hazardous material. With a reputation for providing high quality products, you will find KLAW couplings in leading global oil, gas and petrochemical projects, delivering reliable solutions that ensure protection of personnel, equipment and the environment.

KLAW has more units in operation and in a wider range of applications than any other manufacturer in the world. Prochem’s exclusive distribution agreement covers the KLAW CRYOGENIC/INDUSTRIAL GASES product ranges for both Australia and New Zealand.

Quality and safety by design

As an ISO 9001 company, KLAW manufactures to the highest quality standards. Every coupling is made to exact requirements and specifications.

To ensure 100% integrity, each and every coupling undergoes KLAW’s rigorous testing procedures prior to delivery to the customer.

Where specified, all products are manufactured in compliance with PED (Pressure Equipment Directive 97/23/EC) verified by TUV (Ident 0879) and ATEX Directive (94/9/EC).

Innovative Flip Flap design

All KLAW breakaway couplings utilise the flip flap design.

  • The flip flap design allows the couplings to be compact and lightweight.
  • It is also the best design for minimising head loss and pressure drop and maximising flow rates.
  • Instantaneous closure with 100% shut off with minimal loss of fluid/gas.
  • Keeping below-the-line.

KLAW Cryogenic Breakaway Couplings

The KLAW Cryogenic Breakaway Coupling has long been proven to deliver reliability in the field. It is designed to activate under a bending moment. The applied force being an angle of 90 degrees to the plane of the coupling.

Suitable for Multiple LNG transfer solutions, Liquid Oxygen, Ethylene, Ethane and many more. With operating temperatures to -196°C (-320°F), you can be assured KLAW coupling will suit your needs. Standard coupling housings are stainless steel, carbon steel and aluminium. Other materials are available on request.

Standard nominal bores available: 1” (580 psi) to 12” (145 psi). Couplings are offered subject to customers approval and acceptance of specification. Higher pressure and higher flow rates are available on request.

End Connections

  • NPT Threaded Male or Female.
  • BSP Threaded Tapered or Parallel.
  • Flanged Connections (ANSI 150/PN16 ANSI 300/PN40).
  • Weld Prepared Ends (Schedule 40).

Other End Connection configurations available on request.

Breaking Loads

Coupling break-loads can be varied to suit any particular application.

KLAW Cryogenic Emergency Release Coupling (ERC)

This system uses a collar release mechanism.

This range is suitable for operating temperatures to -196°C (-320°F).

Ensuring 100% closure: even in the most demanding of operating conditions.

Sizes from 1” to 12”.

With utilisation of a collar release mechanism rather than KLAW’s regular breakstud release options, the collar release offers a set predetermined activation point before there is any over extension of the attached loading system or hose assembly.

Industrial Gases

Industrial gas Breakaway Couplings in cryogenic conditions are typically installed for service for Liquid Nitrogen, Liquid Helium, Liquid Oxygen and many more.

The Emergency Release Coupling offers a safe identifiable parting point within the transfer system, offering protection to your personnel and equipment.

Typically KLAW has been requested to supply Bunkering, Refueling and Loading Arm coupling solutions within cryogenic Industrial Gas transfer systems, however, each coupling can be tailored to suit your exact product transfer system and operating conditions.

All KLAW units for Cryogenic application are tested on site to ensure they conform to the highest of industry and safety standards. Once tested all couplings are supplied with test certification which is provided at no extra cost.

With current product sizes available from 1” to 12” you can be assured that KLAW will have the transfer solution to suit your application.


Klaw Cryogenic 3

Klaw Cryogenic 2

Klaw Cryogenic1


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