Explosion proof solenoid operated spool valve Ex ia II C
Description
Direct operated solenoid spool valve with 4 connections in 5 chamber design. With the solenoids deenergised, the spool is held in the center position by the spring (4/3), or switched back to the offset position (4/2). With the impulse spool (4/2), the spool is held in the switching position by the detent. Intrinsic safety is achieved by limiting the electric energy in the solenoid circuit by means of a separate intrinsically safe power supply. Therewith sparking is prevented from forming.
Application
These valves are suitable for applications in explosion-hazard areas, open cast and also in mines. Spool valves are mainly used for controlling direction of movement and stopping of hydraulic cylinders and motors. The direction of movement is determined by the position of the spool and its symbol.
Key facts
Solenoid operated spool valve, intrinsically safe
- Flange construction
- 4/2-way impulse valve
- 4/3-way with spring centred mid position
- 4/2-way with spring reset
- Qmax = 20 l/min
- pmax = 350 bar
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