Unloading valves type DAM

Operating pressure up to 700 bar
Max. flow rate 25 l/Min
Porting NG 6 Cartridge


Features Advantages
Patented inline arrangement of cone / seat elements Poppet tight
Pressure compensated design of valve cones, high magnetic force and strong return spring Safe and fast switching, bidirectional flow on open shift position
Hardened seat elements (cone and seat) Long operating lifetime and reliability
Zinc nickel coated coils, valve body made of corrosion resistant heat-treatment steel Arbitrary position of solenoid coil, replacement of coils without opening of the pressure tight spaces
Check valves and orifices can be integrated High corrosion resistance
Plate mounted valve with drilling pattern according ISO 4401-03 360° turnable and exchangeable plug-in coil


Technical data

Hydraulic fluid mineral oil according to DIN 51524 (other fluids on request)
Fluid temperature range -20 to 120 °C
Ambient temperature range -20 to 120 °C
Viscosity range 10 to 400 mm²/s
Porting NG 4 according to Bieri standard
Max. operating pressure connection HP 700 bar
Max. operating pressure connection LP 150 bar
Pressure setting range connection LP 25 to 150 bar
Max. flow rate 40 l/min
Filtration (recommendation) according to NAS 1638 class 6 resp. ISO/DIN 4406 17/15/12
Pressure drop (LP->T) 3 bar (at 25 l/min and 32 mm²/s)
Weight see technical data sheet
Material cartridge body: free-cutting steel
cone: hardened steel
valve body: stainless steel