Technical features Working pressure: from 0.5 to 1500 mbar abs. Temperature of the sucked fluid: from -5 to +60 °C

These state of the art solenoid valves feature minimal overall dimensions and high volumetric efficiency and high response speed at any vacuum level. They are the result of an attentive choice of materials, state of the art constructive techniques and of the in-depth knowledge of our technicians. This series of solenoid valves is patented. The DDN solenoid valves are direct drive, two-way, two-position valves with direct drive, double shutter and they are normally closed. They are composed of hot pressed brass body where the connections are located, an internal mechanism with double shutter and of an actuator activated by an electric coil. 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 with inserted connector. Allowed tolerance on the voltage nominal value: ±10%. Max. absorption: 20 V.A. with AC and 18 W with DC (except for DDN 25 which cannot be activated 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. For proper operation, the installation of the solenoid valve is not recommended upside down. DDN solenoid valves are particularly indicated for degassers, autoclaves, vacuum thermo-welders and in all applications where suction has to be controlled separately from the air inlet into circuit.

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