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 up to 700 bar
Max. flow rate 12 l/Min
Porting NG 4 according to Bieri standard

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[Translate to EN:] Handabsperrventile Typ SPV2
Features Advantages
Surface mount body NG4, 700 bar, -20°C 2/2-, 3/2- and 4/2- seat tight way functions with defined pattern
Explosion proof marking of solenoid coil II 2G Ex eb mb IIC T4 Gb
according ATEX and IECEx 		Maximum wear resistance and insensitiveness against contamination
Patented, complete pressure compensation, leveraged magnetic force and strong return spring Safe and fast switching at all pressure at all pressure constallations
Ceramic valve balls and high-grade hardend seats out of special steel High corrosion resistance
4x 90° turnable and exchangeable plug-in coil Four positions of solenoid coil, replacement of coils without opening of the pressure tight spaces

Applications

  • 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

Design

  • 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

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 to 400 mm²/s
Nominal size NG 5 or 8
Max. operating pressure NG 5: 1000 bar
NG 8: 1000 bar
Max. flow rate NG 5: 20 l/min
NG 8: 32 l/min
Filtration (recommendation) according to NAS 1638 class 6 resp. ISO/DIN 4406 17/15/12
Weight see technical data sheet
Material NG 5 valve body: galvanized steel, black chromated
rotation knob: plastic
Material NG 8 valve body: corrosion-resistant, heat-treaded steel
cap: aluminium
rotation knob: plastic