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  • NTS®-SZ: Safety Breakaway Coupling with cable

    The NTS®-SZ is a high-quality breakaway coupling that ensures non-destructive, safe separation. Its reliable cable system has been tested and proven in numerous industrial applications for over 30 years, demonstrating its technological maturity. Reassembly following separation is accomplished quickly, easily and without the need for additional spare parts. It has a maximum activation range of 360°, while its triggering mechanism operates independently of the system pressure.

    How does the ARTA NTS®-SZ work?

    Hazardous situations frequently arise during refueling operations due to unintentional tensile forces acting on the line. This can occur for various reasons, such as the sudden departure of a tanker connected to the coupling. Therefore, it is recommended to equip the line with an NTS Safety Breakaway Coupling from ARTA.

    If an unintentional tensile force acts on the cable of the NTS®-SZ, the two coupling halves separate in a controlled manner and their valves immediately close on both sides. This prevents the release of potentially hazardous media and ensures the safety of the user.

    What advantages does the ARTA NTS®-SZ offer?

      Non-destructive separation

    The design of the NTS®-SZ ensures direct and safe separation. No coupling components are destroyed, ensuring a long service life. Furthermore, the separation mechanism allows the transported medium to remain securely contained in both coupling halves without spillage. This protects the environment and eliminates additional material costs.

      Quick and easy reassembly on site

    Since separation is non-destructive, the Safety Breakaway Coupling can be reassembled quickly and easily, minimizing downtime. No spare parts or special tools are required for reassembly. A simple device is used to pull the two separated coupling halves back together.

      Maximum flow rate

    The flow-optimized design of the NTS®-SZ was developed using the Finite Element Method (FEM) and validated through flow testing. This minimizes pressure loss and enables the breakaway coupling to achieve maximum flow capacity.

      Patented trigger mechanism with fully flexible 360° activation range

    The optimized release mechanism prevents the transmission of tensile forces between the vehicle, the NTS and the system. This ensures safe separation even under adverse conditions. The fully flexible 360° activation range enables separation regardless of the direction from which tensile force is applied to the system. The high-performance triggering mechanism of the NTS®-SZ remains unaffected by line pressure.

      Fully verified by international certification bodies

    The NTS®-SZ is a globally recognized safety coupling that has been certified by well-known international certification bodies. It is therefore suitable for use in a wide range of safety-critical applications.

    For which areas of application was the NTS®-SZ developed?

    ARTA Safety Breakaway Couplings are used in suction and pressure lines for liquid, gaseous and solid substances. They can be installed in both hose lines and pipe loading systems. They are particularly suitable for tanker trucks, tanker ships, loading stations and hose stations.

    Ideally, they should be combined with an ASK Dry Break Coupling or Quick Disconnect Coupling from ARTA.


    Liquids

    Gases

    The most important technical data at a glance

    Sizes:DN25 (1“) to DN300 (12“)
    Pressure rating:PN16 (232psi) to PN40 (580psi)
    Temperature range:-55°C (-67°F) to +180°C (+356°F)
    Body material:Stainless steel 1.4301/1.4404/1.4571, Hastelloy®, PTFE housing and internal components for aggressive media
    Sealing:Elastomers, perfluoroelastomers, others on request
    Connections:Threads: NPT, BSP, ISO; Flanges: DIN/EN, ANSI, ISO, ASME; others on request
    Conformities:2014/68/EU Pressure Equipment Directive, 2014/34/EU ATEX, EN 14432
    Accessories:Proximity switches for remote monitoring, pre-alarm system, remote control system (hydraulic, pneumatic)