• UV International

Solenoid Valves, High Pressure

U V International offers GSR, Germany make high pressure Solenoid Valves in India. Advantage of these valves is the ability to control high pressure in large nominal bores with low powered solenoids. Since the solenoid coil and sealing can be replaced easily if necessary, they are very convenient at service. A wide variety of sealing materials that are matched to the respective medium ensure the long service life of the valves. The demand for qualified valve technologies in the natural gas filling stations and hydrogen filling technology, automotive industry and for fuel-tank facilities has been particularly noticeable. In order to use natural gas as a motor, fuel, the natural gas from the pipeline network must be compressed to achieve the desired storage density. The natural gas is compressed to a storage pressure of 250 to 300 bar in filling-station facilities, and then delivered to the natural-gas-powered vehicles. Particularly for valves used for natural gas and in hydrogen technology, there are requirements for a high leak-tightness and long service life of the individual components. These demands can be met by improved manufacturing techniques and continuously refined valve geometries, for example, special refinements of the pilot ports and the valve seats. This has made pressure ranges up to 500 bar feasible today. With the special technology of the RMG system, storing natural gas at high pressures, the solenoid valves are subjected to high frequent switching cycles. The same is required of the solenoid valves when pumping the gas into the vehicles, where pressure differences of 200 bar and more may occur. The resulting stresses make very high demands of the solenoid valves. Since the valves may have maintenance cycles of more than two years, the operating costs of the facility are kept low. The special features of this high-pressure valve include, besides being designed to the Pressurised Equipment Directive and DIN 3840, certification according to ATEX. These demands can be met by improved manufacturing techniques and continuously refined valve geometries, for example, special refinements of the pilot ports and the valve seats. This has made pressure ranges up to 900 bar feasible today. There is no end to this development in sight, due to constant process alterations.