Cryogenic Break-away Couplings

Cryogenic Break-away Couplings

Cryogenic Break-away Couplings are a further development of our Safety Breakaway Couplings which has successfully been used to prevent pull-away accidents in the petroleum, chemical and LPG industry all over the world. The new range of Cryogenic Break-away Couplings can be installed either at fixed points or in the middle of hose strings. The Cryogenic Break-away couplings are
available as Industrial and Marine type. 

Applications

• Container discharge
• Fuel bunkering
• Loading/unloading of tank trucks, rail tankers,
 bunkering and tank vessels
• Vapor recovery lines

Features

• Passive security against situations where
 a hose or loading arm could be subjected
 to accidental high loads
• A simple mechanism and no loose
 components which could be lost after
 release.
• Operates independently of shut off safety
 system and does not require an external
 power source.
• Easy to reset on site with one person
• High flowrate / low pressure drop
• Very low loss, positive shut-off of both
 coupling halves results in minimum
 product loss.
• Lightweight and robust design.
• Available with ANSI/EN flanges or
 threaded (female NPT).

Technical information

Sizes
1" (DN25) to 6” (DN150)
Working pressure
MWP 25 Bar - 1" (DN25) to 4" (DN100)
MWP 16 Bar - 6" (DN150)
with 5 time safety factor
Working temperature
Lowest working temperature is -200o C
Materials
Stainless steel.
Connections
Female NPT, flanged EN and ANSI.
Others on request.

How it works - The CBCoupling function

The Cryogenic Break-away couplings are available as Industrial and Marine type.

Industrial Cryogenic Break-away

Typically installed into loading arm and hose assemblies, where at least one side of the coupling is attached to a fixed rigid point.

Marine Cryogenic Break-away

Marine Cryogenic Break-away Couplings are designed to only release by inline pull and used between two strings of hose.

The CBCoupling valve consists of twohalves, each with a valve that has a o-ring seal. When the CBCouplings separate, it allows the valves to close. The two valves closes rapidly, minimizing exposure to personnel and the environment.

The CBCouplings, Cryogenic Break-away Couplings has three external break bolts. In the case of axial
tension all of the bolts take up the force corresponding to the break force on the hose with a safety margin.

Non-axial forces concentrate the tension forces more strongly on one bolt, so that the Cryogenic Break-away
Coupling reacts in a natural way to the reduction of the hose break forces. 

About Mann Tek

Mann Teknik AB is a Swedish company located in Mariestad, Sweden.

Mann Teknik AB designs, manufactures and
markets products for safe and environmentally
friendly handling of aggressive fluids for the
chemical and petrochemical industries.

The main product is the Dry Disconnect
Couplings, DDCouplings®, for spill free liquid
handling. The products are marketed through
independent representatives in more than 30
countries.

Company Approvals

Mann Teknik AB are certified to ISO9001:2008.
The products are CE-labeled. The main products
are certified to PED, the European Pressure
Equipment Directive and ATEX, the European
directive for Equipment intended for use in
Potentially Explosive Atmospheres.

The products are produced in accordance with
several important standards, e.g. the NATO
STANAG 3756