21WA-W are indirect acting solenoid valves. A minimum operating pressure differential of 0,1-0,2 bar is required for correct operation. large selection of seal materials provides wide chemical compatibility. AC/DC interchangeability of the coil is possible for both NC and NO configurations. Slow closing, manual operator, NSF/ANSI 61-G versions are available on request.
Indirect Acting 2/2-Way Solenoid Valve (General Purpose Valve)