Gerhard Kopplin, technical manager at MannTek, has received a price from Energigas Sweden (Swedish Gas Association) for his work in environmental and safety technologies. The justification of the award is that Gerhard Koppling and his colleagues at MannTek have for a long time been working to resolve problems with gas emissions associated with the shipping and handling of liquefied gases; emissions that can pose a security risk and also have a negative impact on the environment. Thanks to the new MannTek Dry Cryogenic Couplings, these emissions can now be prevented.

Gerhard Kopplin, Mann Tek

Originally, the production work was mainly intended for LPG couplings (MannTek Dry Gas Couplings), but the work has continued with the development of couplings for LNG and LBG. Due to the low temperatures down to -196 degrees C, great demands have been made on material as well as technology in order for everything to function as planned. See Seagas LNG bunkering vessel using MannTek LNG/Cryogenic Couplings.

Cryogenic couplings

Recently, the Swedish authorities have set requirements for spill free couplings of the model MannTek manufacturers, Dry Cryogenic Couplings, to be used for the refuelling of the first passenger ferry to run on LNG. The passenger ferry will be in operation for commercial traffic in early 2013. A great deal of work has also been put into international standard organisations. This in turn has resulted in the coupling now becoming a world wide standard.

The honouring price was awarded to Gerhard Kopplin during Gasdagarna in Trollhättan on October 24th, 2012. In addition to the honour, the award included a scholarship of 15 000 SEK.

Wednesday, 3 October, 2012

cryogenic couplings

Dry Cryogenic Couplings (DCCouplings) and Cryogenic Break-away Couplings (CBCouplings) are designed for use wherever it’s beneficial to connect and disconnect hoses and pipelines under pressure, quickly without spillage and additional tools.

Dry Cryogenic Couplings and Cryogenic Break-away Couplings are designed primary for the use of cryogenic liquefied gases, e.g. LNG (-163ºC) and e.g. Nitrogen (-196º), where safety and reliability are of primary concern.

More information about our new cryogenic couplings

Dry Cryogenic Coupling vs a traditional coupling system

Tuesday, 19 April, 2011

Industrial type Safety Break-away couplings

MannTek – well known on the market for it’s Dry Disconnect Couplings - has released a new line of Breakaway couplings designed to prevent pull-away accidents, protecting operators, loading/unloading equipment (hoses and loading arms) and eliminates unwanted product release.

The Breakaway range starts at 1” size and goes up to 12” and is available in aluminium, brass and stainless steel. The couplings could be equipped with a wide range of sealing material resistant to all types of fluids and gases.

In order to assemble them direct on the hose or loading arm and avoid the use of reducers or nipples they could be equipped with all types of threads and flanges (such as NPT or BSP threads, ASA or DIN flanges, victualic grooves etc). The customer is free to combine the inlet and outlet connection, making the range the most wide and flexible in the market.

After release the Break away couplings could be reset by one man without the use of special tools.

These types of couplings (Safety Break-away couplings) are used to provide safety in situations where the hose can be placed under tension, leading to failure, such as ship loading and unloading, aeroplane refuelling, road and rail tanker loading and unloading

The coupling has a diverted breaking point which will break at a determined break-load where upon the internal valves will automatically close on both sides to eliminate product loss. This will in a long run minimise down time, save money, equipment and the environment.

The Break-away couplings are available as industrial and marine types. The industrial type is typically installed on a loading arm or hose end where at least one side of the coupling is attached to a fixed point. They will be activated with a tensile force being applied at an angle up to 90 degrees.

Marine couplings on the other hand are designed to provide increased resistance to torsion and bending forces and will only release by inline pull. They are used between two strings of hoses. Typical applications are ship to offshore platform, and ship to ship product transfer operations.

Non-closure versions are available in both the industrial and marine versions. The non-closure design acts purely as an identified safe parting point within the transfer system, protecting equipment and personnel.