Specifications

Dry Break Coupling and Tank Adaptor QS range
quickly connects and disconnects transfer lines with no spillage.

Conforms to STANAG 3756.

Dry Disconnect Couplings are also referred to as Dry Break Couplings or Dry Break Couplers. The KLAW QS Range offers the latest in robust and efficient Dry Disconnect Coupling design.

No spillage on connection and disconnection

The KLAW Dry Disconnect automatic valve open and closure design means there is no spillage on connection or disconnection. This prevents costly clean-up costs.

Time and operating cost savings

The QS features an easy grip and turn action in both Round and Twin Square handle options. This improves safety and time efficiency.

QS Dry Disconnect Couplings are much faster than other connection methods such as bolt up flanges. No draining of hoses or loading/unloading systems is required – saving on labour and time.

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QS Dry Disconnect Couplings: the quick, safe and no spill solution

The market leader in the Marine and Industrial transfer industries is applying its high and exacting standards to this range of Dry Disconnect Couplings.

The robust design and the materials used in the manufacture of QS Dry Disconnect Couplings is more than a match for demanding operating conditions and the rigours of marine and industrial environments.

Dry Break benefits of the KLAW QS

QS Dry Disconnect coupling safety locking pin

The QS safety locking pin provides additional safety over other Dry Disconnect Coupling options. The QS Dry Disconnect safety lock pin prevents accidental disconnection.

The QS locking pin is fitted as standard on the following sizes: 1 ½” DN40; 2” DN50; 3” DN80; 4” DN100 and is also available as an option for size DN150; 6″.

Industry standard and compatible with other systems

The KLAW Dry Disconnect Coupling Range is completely interchangeable with other manufacturers.

The KLAW Dry Disconnect Coupling Range is fully compliant to NATO/STANAG 3756.

Multiple seal options

Multiple seal options are available to suit all types of liquids and gases.

Typical applications:

Industry applications

Marine
Industrial
Petrochemical
Chemical
Pharmaceutical

Transfer applications:

The QS Range is equally suitable for transfer hose and loading arm applications.

Ship-to-Ship transfer (Bunkering)
Ship-to-Shore transfer (PSVs)
Ship-to-Rig Transfer
Marine refuelling
Bulk loading and unloading of Road Tankers
Bulk loading and unloading of Rail Cars
Bulk loading and unloading of Ship Terminals

Media applications

Petroleum: Gasoline, Diesel, Oil, Liquid Mud.
Chemical: Butadiene, Ammonia, Ethylene Oxide, Propylene Oxide, Acrylonitrile, Toluene, Xylene, Vinyl Chloride, Phenol.
Dry Powders: for 2” and above.
Other: contact us

Inter-changeability

QS Dry Disconnect Couplings are completely interchangeable with other connections such as those provided by Mann-Tek, TODO, Avery Hardoll and other companies whose couplings conform to STANAG 3756.

Compatibility

NATO STANAG 3756

Specifications:

Sizes

The KLAW QS Dry Disconnect range is available in the following sizes:

1” DN25

2” DN50

2 ½” DN65

3” DN80

4” DN100

6” DN150.

Material options

The KLAW QS Dry Disconnect range is available across all sizes in the following materials:

Aluminium
Stainless Steel

Technical summary

End connection threads and flanges are available for both hose and tank units.

BSP / NPT Threads / DIN ASA /TW /TTMA flanges. Other threads and flanges are available on request.

Seals

FKM (Viton*), NBR (Nitrile), Chemraz**, Kalrez*
Other seals available on request.

* Viton and Kalrez are registered trademarks of Dupont Performance Elastomers.
** Chemraz is a registered trademark of Green-Tweed.

Maximum working pressures

PN10 – PN25.

Safety factor

5:1

Selectivity options

The hazard of cross-contamination is caused by the risk of incorrect hose to tanker connection during product transfer. The KLAW QS selectivity feature removes this risk and protects against human or procedure error.

The KLAW selectivity range is industry standard and is therefore completely compatible with current systems.

Selectivity option and specification is determined at the time of ordering.

Technical advice

To ensure the correct products are chosen for your applications, we advise that you contact our technical team for advice or confirmation before deciding on any specifications.

Dry Break Coupler QS application photos

QS Dry Break Coupler connected to marine offshore hose.

QS Dry Break Coupler connected between fracking natural gas feed pumps.

QS Dry Break Coupler fitted to lifeboat air supply on offshore rig platform.

[Source: www.klawproducts.com]

Download Specifications Sheet