Nucon, an iso certified company which aims at providing compressed air treatment and pneumatic solutions. The product includes pneumatic cylinders, pneumatic valves and air treatment equipments. Piston valves for direct control is provided by nucon. It is available in models zm/1700 and zncn/1700. Piston valves are long established, valves that are suitable for the direct control of many double acting cylinders. All valves, except spring return and spring centralized versions or those having a detent mechanism, should be horizontally mounted. Manual override is provided on solenoid valves. The zm/1700 & zncn/1700 valves are available with side ported, bottom ported and manifold sub bases. The salient features of the piston valves for direct control: