Directional poppet valves WVH-4B

Features Advantages
Surface mount body NG4, 700 bar, -20°C 2/2-, 3/2-, 3/3 and 4/2-seat tight way functions with defined pattern
Directly operated Safe and fast switching at all pressure at all pressure constallations
Seat tight Maximum wear resistance and insensitiveness against contamination
360° turnable and exchangeable plug-in coil Arbitrary position of solenoid coil, replacement of coils without opening of the pressure tight spaces
Corrosion resistant Compact, low weight



Technical Data

Hydraulic fluid Mineral oil according to DIN 51524 (other fluids on request)
Fluid temperature range – 20 to 80 °C
Ambient temperature range – 30 to 50 °C
Viscosity range 5 bis 400 mm²/s
Porting NG 4 according to Bieri standard
Max. operating pressure P, A, B 700 bar
Pressure difference from P to A, B to T must be adhered! (pp ≥ pA (pB) ≥ pT)
Max. operating pressure T 700 bar
Max. flow rate 12 l/min
Filtration (recommendation) According to NAS 1638, class 6 resp. ISO/DIN 4406 17/15/12
Duty cycle ED 100 %
Solenoid voltage (nominal power) 24 VDC (27.2 W), 110 VAC (25 W), 230 VAC (25 W)
Voltage tolerance +/– 10 %
Switching time 40 – 120 ms
Degree of protection IP 63 according to EN 60529/DIN 40050 (solenoid IP 65)
Weight See technical data sheet
Material Corrosion-resistant steel and aluminium
(coil housing: ZnFe - corrosion protection)