Seated valves type WVM-4B-Bi


Features Advantages
Surface mount body NG4, 700 bar, optionally up to -40°C: 2/2-and 3/2-way functions, bidirectional seat tight with defined pattern, applicable in very rough ambient conditions and very low temperatures
Pressure compensated design of valve cones, optimized dead space, high magnetic force and strong return spring:
  • Safe and fast switching
  • Bidirectional flow on open shift position with optimized Δp and good suitability for high viscous media (grease)
  • No crystallisation of grease in dead spaces
  • Double tight with leakage free tightness in closed position
360° turnable and exchangeable plug-in coil: Arbitrary position of solenoid coil, replacement of coils without opening of the pressure tight spaces
360° turnable and exchangeable plug-in coil: Arbitrary position of solenoid coil, replacement of coils without opening of the pressure tight spaces
Zinc iron coated coils, valve body made of corrosion resistant heat-treated steel: High corrosion resistance
Check valves and orifices can be integrated: Multiple options can easily be realised

Segments & Applications

Design


Technical Data

Hydraulic fluid Mineral oil according to DIN 51524 (other fluids on request)
Fluid temperature range -25 to 80°C (down to -40°C on Request)
Ambient temperature range -25 to 50°C (down to -40°C on Request)
Viscosity range from 5 mm2/s to class NLGI 2/s
Porting NG 4
Max. operating pressure 700 bar continuous pressure (S1)
Duty cycle DC 100% (at continuous pressure operation)
Max. flow rate / mass flow 12 l/min (Grease: approx. 2.5 kg/min)
Filtration (recommendation) According NAS 1638 class 6 resp. ISO/DIN 4406 17/15/12
DIN connector (2P + E) According EN 175301-803 / ISO 4400 / DIN 43650
Power Solenoid: 24 VDC (23 W) / 110 VAC (25 W) / 230 VAC (25 W)
Power tolerance +/- 10%
Switching time 40 - 120 ms (depending on viscosity)
Degree of protection according DIN 40050 IP 65
Material Corrosion-resistant steel and aluminium
(coil housing: ZnFe - corrosion protection)