Proportional 2-way flow control cartridge, explosion protected Ex d II C
Description
Direct operated, pressure compensated proportional flow control valve in screw-in cartridge construction for cavity according to ISO 7789. With the solenoid deenergised, the control spool is held in the closed position by a spring. The change of the electric current is followed by a proportional volume flow change. From the input (1), the fluid flows over a throttle and a control spool to the controlled output (2). The pressure tight encapsulated Ex-protection solenoid coil prevents an explosion on the inside penetrating to the outside as well as an ignitable surface temperature.
Application
Proportional flow control valves are suitable for precise speed control, where the load current has to be maintained constant independent of the input and output pressure. These valves are suitable for applications in explosion-hazard areas, open cast and also in mines. The screw-in cartridge is perfectly suitable for installation in control blocks. For machining the cartridge cavity in steel and aluminum blocks, cavity tools are available (hire or purchase). Please refer to the data sheets in register 2.13.
Key facts
Proportional 2-way flow control cartridge
- direct operated
- Qmax = 28 l/min
- QN max = 25 l/min
- pmax = 350 bar
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