Hand shut-off valves type SPV2
BIERI seated valves out of series WVHX are directly operated, oil leakage free valves of size NG4, suitable for constant pressure ranges up to 700 bar with mineral oils. These electrically operated valves are suitable in in explosion-prone zones where devices marking II 2G EX IIC T4 Gb are needed.
Operating pressure
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up to 700 bar
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Max. flow rate
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12 l/Min
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Porting
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NG 4 according to Bieri standard
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Features
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Advantages
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Surface mount body NG4, 700 bar, -20°C
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2/2-, 3/2- and 4/2- seat tight way functions with defined pattern
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Explosion proof marking of solenoid coil II 2G Ex eb mb IIC T4 Gb
according ATEX and IECEx
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Maximum wear resistance and insensitiveness against contamination
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Patented, complete pressure compensation, leveraged magnetic force and strong return spring
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Safe and fast switching at all pressure at all pressure constallations
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Ceramic valve balls and high-grade hardend seats out of special steel
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High corrosion resistance
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4x 90° turnable and exchangeable plug-in coil
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Four positions of solenoid coil, replacement of coils without opening of the pressure tight spaces
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- Portable power units
- Control of cylinders as superior and space saving alternatives
to spool valves which require additional leakage free shutoff valves - Forming technology - clamping
- Presses, test benches and systems
- Lifting and transport systems
- Hydraulic tools
- Accumulator charching systems
- Seat-tight pilot control of passive and/or active logic valves
- Pressure compensated design of hardened and specially grinded valve cones
- Available as 2/2 or 3/2 directional poppet valve cartridges with solenoid actuation
- Strong return springs
- 360° turnable and exchangeable plug-in-coil
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 80 °C
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Ambient temperature range
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-30 to 50 °C
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Viscosity range
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5 to 400 mm²/s
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Nominal size
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NG 5 or 8
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Max. operating pressure
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NG 5: 1000 bar
NG 8: 1000 bar
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Max. flow rate
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NG 5: 20 l/min
NG 8: 32 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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Weight
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see technical data sheet
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Material NG 5
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valve body: galvanized steel, black chromated
rotation knob: plastic
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Material NG 8
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valve body: corrosion-resistant, heat-treaded steel
cap: aluminium
rotation knob: plastic
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