Pilot-operated solenoid valve 070x51 series

3-wayNCNO

Servo-controlled 3-way vacuum solenoid valves with two electric coils These solenoid valves have the same function and the same structure as the previously described three-way valves. Even their structure is the same, but their distinctive features are the two coils that with a simple electric impulse exchange the shutter positions and keep them in this position till the next impulse even in absence of compressed air at the servo control and of electric current. This is the reason why their use is especially recommended in all those cases requiring maximum connection security at the vacuum source, even in the absence of electrical and pneumatic power supply. The standard electric coils are fully plastic-coated in synthetic resin, watertight, insulation class F (up to 155°C) as per standard VDE, with 6.3 mm three-terminal electrical connections for connectors in compliance with EN 175301-803 (ex DIN 43650). Protection degree IP 54; IP 65 with connector inserted. Tolerance permitted on the nominal voltage value: ±10%. Maximum absorption: 8 - 20 V.A. with AC and 6.5 - 18 W with DC. The electric coils can be rotated 180°. The connectors can be rotated 180° on the coils and can be supplied, upon request, with LED lights, anti-interference circuit and/or with protection devices against overvoltage and polarity reversal. Technical features Working pressure: from 0.5 to 3000 mbar abs. Servo-control pressure: see table Temperature of the sucked fluid: from -5 to +60 °C