Proportional spool valve pilot operated, explosion proof Ex d
Description
Pilot operated proportional spool valve with 4 connections in 5-chamber system. Very compact construction with corresponding low weight and high flow values. The function of the pilot and main valve as well as the interaction of both valves can be found in the hydraulic diagram. Proportional to the solenoid current, the spool stroke, the spool opening and the valve volume flow increase. 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. For the control, Wandfluh proportional pressure valves (see register 2.3) and Wandfluh proportional amplifiers (see register 1.13) are available.
Application
These valves are suitable for applications in explosion-hazard areas, open cast and also in mines. Pilot operated valves are used where large volume flows have to be controlled. Due to the large flow range and the high stiffness of the actuation as a result of the pilot control, these valves are suitable for applications where fast acceleration and deceleration processes, high speeds and sensitive motion sequences are required. The applications are in the industrial as well as in the mobile hydraulics for the smooth control of hydraulic actuations.
Key facts
Proportional spool valve
Flange construction
- pilot operated
- Qmax = 200 l/min
- QN max = 90 l/min
- pmax = 350 bar
Contact us now
Do you have questions about this product or need help finding the best solution for your project? Our network of experienced sales experts is here to support you – personally, competently, and close to you.
To the sales network
