Solenoid Valve

Solenoid valves for on-off control of water, air and oil: brass bodies in the general, ZW, RSQ and flanged patterns, a stainless steel UD series, and a two-way polyamide valve for water service where a metal body would corrode. Three details cause most of the trouble on site: coil voltage, whether the valve is normally closed or normally open, and the minimum differential pressure a servo-assisted valve needs before it will open — only a direct acting valve works from zero differential. Specify port size, body and seal material, medium and temperature, coil voltage and how long the coil will be energised.