Solenoid Directional Valve

solenoid directional valve

Firstly, there are some infomraiton about the benefits of the solenoid directional valve:(1)long life and low noise level due to oil-immersed solenoid armature; (2)electro-magnetic actuation available in all standard international dc and ac voltages and many electrical connection types available; (3)minimal wear and long life due to hardened and polished control elements; (4)in the closed position the flow paths are shut off by means of a cone seat; (5)solenoid coils can be rotated through 360° and replaced without opening the hydraulic system; (6)surfaces are zinc-plated; (7)built-in seals protect solenoid coils from water penetration; (8)compact construction enables space-saving installation in connection housings and control blocks.

Then, solenoid directional valve also has some technical specifications:(1)operating pressure: max. 250 bar; (2)flow rate: max. 19 l/min; (3)internal leakage: leakage-free; (4)temperature range of operating fluid: -20 °c to +120 °c; (5)ambient temperature range: -20 °c to +60 °c; (6)type of voltage: dc solenoid,; (7)ac voltage is rectified using a; (8)bridge rectifier built into the coil; (9)nominal voltage (at 20 °c): 1.5 a at 12 v dc; (10)0.8 a at 24 v dc; (11)voltage tolerance: -15% to +15%; (12)switch-on time: 100% (continuous); (13)switching time: on: approx. 35 ms,off: approx. 50 ms; (14)operating fluid: hydraulic oil to din 51524 part 1 and 2; (15)viscosity range: 10 mm2/s to 420 mm2/s is recommended; (16)filtration: max. permissible contamination level of the operating fluid to iso 4406 class 21/19/16.