Festo VSVA-B-T32U-AH-A2-1C1 546695 18 mm 24V DC 400 l/min electrician tool

18 mm 24 V DC solenoid valve for pneumatic control

The Festo VSVA-B-T32U-AH-A2-1C1 is a 2x3/2 normally open monostable valve designed for compressed-air systems that follow ISO 8573-1:2010 [7:4:4]. It suits automation engineers and maintenance teams who need reliable electrical actuation in a compact 18 mm housing. The valve delivers a standard nominal flow rate of 400 l/min at pressures between 2 bar and 10 bar. Its 100 % duty cycle supports continuous operation without overheating.

Integration into a pneumatic manifold

Electrical connection requires a 24 V DC supply rated at 1.8 W with permissible voltage fluctuations of -15 % to +10 %. The piston gate design uses a pneumatic spring reset and soft sealing principle, allowing mounting in any position. Flow control on the exhaust port lets installers tune cylinder speed without extra components. A pilot medium of the same compressed-air quality feeds the internal pilot stage, and oil lubrication is possible for extended service life.

Behaviour under sustained load

Switching times of 13 ms on and 21 ms off remain consistent during prolonged cycling thanks to the 100 % duty cycle and overlap lap design. The coil tolerates test pulses up to 1000 µs positive and 800 µs negative without false triggering. Vibration and shock resistance meet severity level 2 per FN 942017-4, FN 942017-5 and EN 60068-2-6, EN 60068-2-27, while the corrosion resistance class 0 suits dry indoor environments. Operating temperature spans -5 °C to 50 °C with relative humidity up to 90 %.