Unloading valves type DAM
BIERI cartridge directional poppet valve WS700 are compact, highly reliable and designed for high duty cycles and a long lifetime. The patented valve design is space saving and ready to use in tight installation conditions.
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Operating pressure
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up to 700 bar
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Max. flow rate
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25 l/Min
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Porting
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NG 6 Cartridge
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Features
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Advantages
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Patented inline arrangement of cone / seat elements
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Poppet tight
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Pressure compensated design of valve cones, high magnetic force and strong return spring
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Safe and fast switching, bidirectional flow on open shift position
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Hardened seat elements (cone and seat)
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Long operating lifetime and reliability
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Zinc nickel coated coils, valve body made of corrosion resistant heat-treatment steel
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Arbitrary position of solenoid coil, replacement of coils without opening of the pressure tight spaces
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Check valves and orifices can be integrated
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High corrosion resistance
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Plate mounted valve with drilling pattern according ISO 4401-03
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360° turnable and exchangeable plug-in coil
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- Pressure compensated, hardened and specially grinded valve cones
- Manual override
- Available as 2/2-, 3/2-, 3/3-, 3/4-, 4/2-, 4/3- or 4/4-valve solenoid actuated
- 360° turnable and exchangeable plug-in coil
- Replacement of coils without opening of the pressure tight spaces (slip-in coils)
- Integrated check valve and orificies available
- Patented functional principle
- Plate mounted valve with drilling pattern according to ISO 4401-03
- Strong return springs
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Hydraulic fluid
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mineral oil according to DIN 51524 (other fluids on request)
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Fluid temperature range
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-20 to 120 °C
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Ambient temperature range
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-20 to 120 °C
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Viscosity
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range 10 to 400 mm²/s
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Porting
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NG 4 according to Bieri standard
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Max. operating pressure connection HP
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700 bar
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Max. operating pressure connection LP
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150 bar
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Pressure setting range connection LP
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25 to 150 bar
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Max. flow rate
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40 l/min
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Filtration (recommendation)
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according to NAS 1638 class 6 resp. ISO/DIN 4406 17/15/12
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Pressure drop (LP->T)
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3 bar (at 25 l/min and 32 mm²/s)
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Weight
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see technical data sheet
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Material
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cartridge body: free-cutting steel
cone: hardened steel
valve body: stainless steel
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![[Translate to EN:] Druckabschaltventil Typ DAM (500+)](/fileadmin/_processed_/1/3/csm_dam500_30a1e06e0a.jpg "[Translate to EN:] Druckabschaltventil Typ DAM (500+)")