NTS®-SZ-TT: Emergency Disconnect Safety System with Cable Pull for Cryogenic Temperature Range to -230°C (-382°F)

Hazardous situations during refueling operations frequently arise due to an accidental impact on the line. This type of event can occur for various reasons, such as the sudden departure of a tanker connected to the coupling. Consequently, it is recommended to provide the line with an NTS emergency disconnect safety system from ARTA.

Should an unintentional pulling tensile force affect the line where the NTS®-SZ-TT is installed, the two coupling halves will disconnect in a controlled manner and the valves on both sides will immediately close. The safety of the user is ensured because no spillage of potentially dangerous media will occur.

Application at low temperatures

The NTS®-SZ-TT enables the loading of liquids and gases at low temperatures of down to -230° Celsius or -382° Fahrenheit. The NTS®-SZ-TT remains fully functional even when frozen, making it suitable for applications in the cryogenic sector.

Non-destructive separation

The design of the NTS®-SZ produces a safe, direct separation. The coupling components are not destroyed, providing a long service life. Furthermore, the separation mechanism permits spill-free retention of the transported media in both coupling halves. Thanks to this innovative separation mechanism, there is no impact on the environment and there are no additional material costs.

Quick and easy reassembly on site

Downtime is minimized and the Breakaway Coupling easily reassembled, mainly due to the non-destructive manner in which separation occurs. Separated coupling halves are reunited using a simple device.

Maximum flow

he NTS®-SZ-TT’s flow-optimized design was created using the finite element method (FEM), and validated by flow tests. The result is minimum pressure loss, even if the breakaway coupling is at maximum delivery flow.

Patented trigger mechanism with fully flexible 360° range of activation

Safe separation is ensured even under adverse conditions because of the patented trigger mechanism, which averts tensile force between the NTS, any vehicle and the rest of the system. Thanks to the 360° range of activation of the separating mechanism, the high-performance triggering mechanism of the NTS®-SZ-TT is independent of line pressure, and triggering is mostly independent of the tensile force’s direction.

Fully verified by international certification entities

The NTS®-SZ-TT is an industry-recognized safety coupling certified by recognized international approval entities. There are no safety reservations for its application.

The NTS®-SZ-TT is particularly suitable for media transport at an extremely low temperature, such as cryogenic liquefied natural gas, cryogenic liquefied oxygen, ethylene, propylene or ethane. It is designed for use on suction and discharge lines for liquid and gaseous substances, making it ideal for tanker trucks, tanker ships and loading stations, along with other applications.

Because of its field of application in the cryogenic area, it is ideally combined with the ARTA ASK-TT dry coupling.