Festo’s new solenoid valve, VZWP, features a piston seal instead of a diaphragm seal, and has a maximum operation pressure of 40 bar. The use of a sealing piston instead of a diaphragm means that even high pressures can be controlled with a large nominal diameter. The valve closes automatically if power is lost. The VZWP is an ideal universal process valve for water, air, and neutral media.
The VZWP are 2/2-way valves, normally closed, and are piloted piston poppet valves. Units are made of brass valves with an option of nitrile rubber and fluoro elastomer seals. The valves come with either NPT or G threads. Sizes range from 1/2 to 1 inch, and the operating pressure is from.5-40 bar.
The valve can be operated wherever there is a pressure difference between the valve input and output. This includes applications where the medium is expelled into the open air or flows into an unpressurized container downstream of the valves. The VZWP is used for gaseous and liquid material flows up to a viscosity of maximum 22 mm²/s in factory and process automation.
