3 Maximum Precision and Reliability The product advantages at a glance: double shut-off single shut-off straighttrough dry-break coupling Valves Depending on the application area, Parker HPCE coupling systems are available with straight-through, single or double shut-off, and in clean break design. To ensure fault free operation all valve seals are the same as the main seal choice. Dirt Protection For outdoor applications, we have developed coupling systems that have seals integrated both into the unlocking sleeve and into the plug – the complete coupling (incl. locking system) is therefore sealed when coupled and it is effectively protected from dirt and spray water. • High resistance to vibrations and dirt (e.g. NSR-Series). • Certified safety – vibration and shock test in accordance with DIN EN 61373/IEC 61373. • Low pressure drop for maximum energy efficiency. • Compact design for installation in applications where little space is available. • Various sizes from nominal diameter 3 mm up to 50 mm. • Broad selection of sealing materials for optimal co-ordination with temperature (-55°C up to +250°C) and flow medium. • High resistance to rotation. • No leakage when disconnected due to the specially developed valve design – even after a long time and pressurisation (all flat-sealing variants). • Push-pull function – pull-off function for system safety and time saving, particularly with systems in motion (e.g. FF-Series).
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