Vuototecnica vacuum valves and solenoid valves

Manual 2-way vacuum valves
These manual valves are used for intercepting vacuum in all those plants where solenoid valves cannot be installed. They feature a die-cast nickel-plated brass body, a chromed brass ball shutter and Teflon seals to guarantee perfect seal even at high temperatures. A lever on the ball shutter, rotated by 90°, allows opening or closing the valve with no effort.  

Manual 3-way vacuum valves  

Pilot operated 3-way vacuum valves
These 2-positions, 3-way valves feature pneumatically activated conical shutters. They can be normally used either open or closed. They are recommended in all the cases that require a quick exchange between the vacuum pump suction and the air inlet into the circuit for a quick restoration of the atmospheric pressure. They are composed of an anodised aluminium body, two Vulkollan® shutters assembled onto a stainless steel stem, a membrane for servo-control made with special compounds and a thrust spring for the shutter return. These valves allow reducing frictions and internal dynamic stresses to the minimum; the result being a high response speed and a guarantee of long lasting duration.  

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  

2 and 3-way vacuum solenoid pilot valves
These direct-drive valves have been specially designed for vacuum and are normally closed. They are composed of an anodised aluminium body, where the connections and the passage orifices are located, and of an actuator which is activated by an electric coil. The solenoid pilot valve shutter in NBR nitrile rubber or Vulkollan®, is an integral part of the actuator mobile core. Both the orifices of the 2-way solenoid pilot valves have the same size, while those of the 3-way ones have a 3mm outlet diameter, obtained through the tube. The very low reaction time allow carrying out a very high number of cycles per minute. The standard electric coil is fully plasticised with synthetic resin, tight execution, insulation class F (up to 155 °C) compliant with VDE standards, with 6.3 mm 3-terminal electrical connections in compliance with EN 175301-803 (ex DIN 43650).
Protection degree IP 54; IP 65 for inserted connector.
Allowed tolerance on the voltage nominal value: ±10%.
Max. absorption: 16.5 V.A. with AC and 16 W with DC.
The electric coil can be rotated by 360°.
The connector can be rotated by 180° on the coil 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 1 to 1500 mbar abs.
  • Temperature of the sucked fluid: from -5 to +60 °C  

Direct drive 2-way vacuum solenoid valves  

Servo-controlled 3-way vacuum solenoid valves  

Servo-controlled 3-way vacuum solenoid valves with 2 electric coils

Direct drive 3-way vacuum solenoid valves  

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