These solenoid valves are normally closed. When energized, the solenoid coil provides a strong magnetic force which pulls a plunger up into the plunger tube. This opens the valve orifice permitting the flow of medium. These valves cannot be operated manually. The valve body is made of forged brass. The remaining parts are made of stainless steel and corrosion-proof metal alloys. The gaskets are made of rubber resistant adequately to the media the valves are provided for. The ZE-1,6 valve head is made of teflon. There is only one type of water-proof, fully encapsulated coil.

These valves should be mounted in a vertical position with the coil upright by using added base. They have flare connections for 6 mm DIA copper tubes (except of ZE-1,6 valve). The direction of flow should be in accordance with the arrow marked on the valve body.

When the mechanical impurities are present at the medium a proper strainer should be fitted upstream of the valve. The valve body (except of valves with low voltage coil) should be earthed.

These solenoid valves type ZE-1.6; ZE-3 iZE-4 are directly operated and can be used to control the tlow in a positive, fully closed or fully open mode for refrigeration, hydraulic or pneumatic systems. The kinds of media are given in the table. They may be operated by a variety of electrical switches. Among them are temperature or pressure controls and time or manual switches.

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