The KLAW range of marine breakaway couplings and emergency release systems from Trelleborg minimise the risk of spills and help maintain an efficient transfer of oil, gas and other media within land and offshore operations.
Trelleborg safety breakaway couplings
KLAW safety breakaway couplings will shut down flow in an emergency and then enable a controlled break in the transfer line. This means control of the operation is maintained in an emergency such as truck or railcar drive-off or vessel displacement due to operational malfunction, human error or extreme environmental events.
Activations are caused by unacceptable strain on the system due to displacement of one or both connection points in the transfer line; or extreme pressure surge due to malfunction of another component elsewhere in the transfer system.
The KLAW range of breakaway couplings from Trelleborg, therefore, minimises the risk of spills and damage to assets such as hoses and loading arms, injury to personnel, environmental pollution and damage to reputation. There is also a considerable reduction in spill clean-up costs and extended downtime.
Trelleborg Flip-Flap Valve proven technology
The Trelleborg Flip-Flap KLAW Valve is the most proven and reliable solution in reducing the risk of spills in the oil and gas industries.
Instantaneous closure with 100% shut-off is achieved even when partial separation occurs. Minimum headloss also offers the highest levels of flow efficiency. Trelleborg Flip-Flap Valve technology is part of the reason why KLAW marine breakaway and emergency release couplings deliver reliable reduced risk and efficiencies around the world and is the accepted industry standard for offshore transfer operations.
Marine Breakaway Couplings
The KLAW Marine Breakaway Coupling range from Trelleborg is the trusted choice for oil, gas and petrochemical companies.
The KLAW range of Marine Breakaway Coupling provides instantaneous double closure with 100% shut-off. The Marine Breakaway Coupling is located within the hose string and is designed to resist bending moments and the torsional forces expected from the environmental rigours of offshore product transfer.
Typical applications include ship-to-ship transfer, ship-to-shore transfer, ship-to-rig transfer, and marine refuelling.
Emergency Release Coupling (ambient)
The KLAW Emergency Release Coupling (ERC) range is suitable for ship-to-ship and ship-to-shore transfer systems and can be hydraulically controlled to allow for extensive flexibility and control options for the operator.
The KLAW Emergency Release Coupling range from Trelleborg offers all the benefits of the KLAW marine breakaway coupling but with the added advantages of additional control options and the facility to activate without relying on any stress on the hose or transfer system.
One end of the Emergency Release Coupling is fixed within the transfer system with a hose connection at the other end. On activation, the ERC collar release mechanism separates: allowing the Flip-Flap Valves to close and the coupling to separate.
Activation types are available as cable, hydraulic or dual release. A dual release incorporates both cable and hydraulic. A manual hand pump override is also available.
The Emergency Release Coupling is part of the Emergency Release System (ERS) and offers numerous configurations depending on the requirements of the transfer system. For example, several ERCs can be commissioned and remotely controlled within a system, allowing for both automatic and procedure activation.
Typical applications include ship-to-ship transfer, ship-to-shore transfer, loading arm, truck loading arm and hose assemblies.
Emergency Release Coupling (cryogenic)
The KLAW cryogenic Emergency Release Coupling contains the operational benefits of the ambient ERC but is designed for cryogenic temperatures to -196°C (-346°F).
Typical ERC cryogenic applications include ship-to-ship transfer, ship-to-shore transfer, loading arm, and truck loading arm and hose assemblies.
Full-Bore Breakaway Coupling
The KLAW Full Bore Marine Coupling (KLAWZERO) from Trelleborg offers 100% shut-off with no line restriction. KLAWZERO is designed for the bulk transfer of dry powders, and viscous and abrasive media.
Providing 100% instantaneous double shut-off but no line restriction, the KLAWZERO Full Bore Marine Coupling is the most efficient of its type in the industry.
The coupling fits within a hose string and its full unrestricted bore means it is fully pigable and not affected by clogging. When transferring viscous or abrasive products, this coupling delivers much lower maintenance costs and downtime.
Typical applications include cuttings fluid, well testing, flowback operations and the transfer of any highly viscous or abrasive media such as dry cement, bitumen, and mud and waste products.
Dry Break Couplers
Lightweight and easy to use, the Trelleborg QS range of Disconnect Couplings deliver quick, safe and dry connections, and has been designed for the rigours of operations – including harsh offshore environments.
Technical advice and after-sales care
Trelleborg offers comprehensive expertise and after-sales service. Support includes advice, training, resetting and refurbishment, preventative maintenance and service kits.