Varian L8725-30 Electromagnetic Block Valve

The Varian L8725-30 is a direct-acting electromagnetic block valve designed for vacuum applications ranging from atmospheric pressure down to 10^-9 Torr. This compact, right-angle valve features NW25 flange connections and operates without the need for compressed air.

Key Features:

• Design: Compact, right-angle configuration with NW25 flange connections.

• Operation: Direct-acting mechanism eliminates the need for compressed air.
  

• Actuation: Normally closed with a spring-closed actuator for fail-safe operation; closes in less than 25 milliseconds upon power loss.

• Materials: Available in aluminum with a clear-coated exterior or a nickel-plated version for enhanced resistance to corrosive gases and reduced outgassing.
  

• Bakeability: Can be baked up to 125 °C (257 °F) in the closed position with the coil removed.
  

• Electrical Specifications: Operates at 23 watts with options for 100/115 V or 200/240 V at 50/60 Hz, as well as 12/24 VDC.

• Service Life: Designed for 250,000 actuations, ensuring long-term reliability.

• Conductance: Offers a conductance of 3.5 l/s for NW25 models.