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Hydraulics

Directional valves, prop/servo. Cetop-pattern

131004-3-1

Proportional valves with ATEX approval series DHZA and DPZA

Proportional valve in spool design. Available in sizes NG 6, 10, 16 and 25 See symbols at the end of the chapter for valves

  • Max. system pressure: 350 bar
  • Flow: 2 - 390 L / min at 10 bar pressure drop
  • Protection class: IP 67
  • Medium: synthetic / mineral oil - on request also water / glycol
  • DHZA: NG6, spool, directly controlled
  • DLHZA: NG6, Spool in the lining, directly controlled
  • DKZA: NG10, Spool, directly controlled
  • DLKZA: NG10, Spool in lining, directly controlled
  • DPZA: NG16, 25, Spool, Pilot Operated
  • Available in ATEX Ex II 2G class EEx D IIC T6, T4 and T3
Datasheet, pricelist
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131004-5-1

Ex-proof proportional valves with integral digital drivers

Ex-proof ZA valves are proportional valves with specific solenoids and integral digital electronic drivers.

  • ATEX 94/9/CE Ex II 2 G Ex d IIC T6/T5/T4/T3 (group II for surface plants with gas or vapours environment, category 2, zone 1 and 2)
  • IECEx worldwide recognized safety certification, Ex d IIC T6/T5/T4/T3 Gb IP66
  • Compact execution
  • Simplified valve wiring
  • Reduced risk of electromagnetic disturbances on the valve’s transducer feedback signal
  • Possibility to exploit in hazardous environment and all the advantages provided by the standard digital electronics: Software setting of the main functional parameters.
  • Complete diagnostics of the driver status, and fault condition.
Datasheet, pricelist
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131004-1-1

Proportional directly operated valve, KB * G4V-3, size NG 6

"Standard performance" valves supplied as a 3-position 4-way valve for regulating the direction and flow. Also available as 2-position of 1-way valve for regulating the flow only. The valve has built-in control card

  • Alternative control signal (+ / - 10 volt & amp 4-20.)
  • Adjustable ramp (0-12 sec.)
  • Isolation Class IP 67
  • CE-approved
  • Vibration and shock tested
  • Max pressure 350 bar
  • Max 24 l / min v 5 bar pressure (depending on spool type)
  • Hysteresis <8% of the nominal oil flow
Datasheet, pricelist
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131009-8-1

Prop. Directional Valves, Electrical/manual operation, type 1STB

Servi Hydranor valves are protected against seawater and designed specially for use on ship’s deck, which makes them suitable for all marine applications and offshore use.

  • Sizes : NG6, NG10, NG16 and NG25.
  • Capacity to 500 l/min.
  • Customer Design spools available.
  • A number of possibilities for spool positioning, sprin or detent.
Datasheet, pricelist
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131004-1-4

Proportional directly operated valve, K (B) FD/TG4V-3, size NG 6

"High performance" valves supplied as a 3-position 4-way valve for regulating the direction and flow. Also available as 2-position of 1-way valve for regulating the flow only.

  • Control signal + / - 10 volts
  • Isolation Class IP 67
  • CE-approved
  • Vibration and shock tested
  • Max pressure 350 bar
  • Max 20 l / min v 5 bar pressure (depending onspool type)
  • Hysteresis <1% of nominal oil flow
Datasheet, pricelist
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131004-1-2

Proportional directly operated valve, KB * G4V-5, size 10 NG

"Standard performance" valves supplied as a 3-position 4-way valve for regulating the direction and flow. Also available as 2-position of 1-way valve for regulating the flow only. The valve has built-in control card

  • Alternative control signal (+ / - 10 volt & amp 4-20.)
  • Adjustable ramp (0-12 sec.)
  • Isolation Class IP 67
  • CE-approved
  • Vibration and shock tested
  • Max pressure 350 bar
  • Max 50 l / min (70 l / min as 2-position) v 5 bar pressure (depending on spool type)
  • Hysteresis <8% of the nominal oil flow
Datasheet, pricelist
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131004-1-5

Proportional directly operated valve, K (B) FD/TG4V-5, size 10 NG

High performance" valves supplied as a 3-position 4-way valve for regulating the direction and flow. Also available as 2-position of 1-way valve for regulating the flow only.

  • Control signal + / - 10 volts
  • Isolation Class IP 67
  • CE-approved
  • Vibration and shock tested
  • Max pressure 350 bar
  • Max 50 (70) l / min v 5 bar pressure (depending on spool type)
  • Hysteresis <1% of nominal oil flow
Datasheet, pricelist
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131004-1-7

Proportional directly operated valve K (B) SDG4V-5 size 10 NG

"Power Performance" series valves have excellent technical data which enables the use of the valve in closed loop circuits have previously been used servo valves.

  • Control signal + / - 10 volts
  • Isolation Class IP 67
  • CE-approved
  • Vibration and shock tested
  • Max pressure 350 bar
  • Max 80 l / min v 70 bar pressure drop (depends on spool type)
  • Hysteresis <0.5%
Datasheet, pricelist
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131004-1-3

Forstyrt Proportional directional valve, KB * G4V-3, size NG 10/16/25/32

"Standard performance" valve series provides a cost effective solution where one does not need more "sophisticated" valves with built-in feedback spool position. The valve has built-in control card.

  • Alternative control signal (+ / - 10 volt & amp 4-20.)
  • Adjustable ramp (0-12 sec.)
  • Isolation Class IP 67 - CE approved
  • Max pressure 315/350 bar
  • Maximum oil flow NG10: 90 l / min, NG16: 170 l / min, NG25: 330 l / min, NG32: 550 l / min
  • Hysteresis <8% of the nominal oil flow
Datasheet, pricelist
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131004-1-8

Forstyrt Proportional directional valve, KBFDG5V-5/7/8 size NG 10/16/25

"High preformance" proportional valve with built-in feedback on the main stage. The valve has technical data lies between KBDG and KBHDG

  • Control signal + / - 10 volts
  • Isolation Class IP 67
  • CE-approved
  • Vibration and shock tested
  • Max pressure 350 bar
  • Max 95/150/375 L / min v 5 bar pressure drop (depends on spool type)
  • Hysteresis <1%
Datasheet, pricelist
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131004-1-9

Pilot operated proportional directional valve, KBH DG5V-5/7/8 size NG 10/16/25

"High preformance" valve series excellent technical data. This enables the use of the valve in closed loop circuits have previously been used servo valves.

  • Control signal + / - 10 volts
  • Isolation Class IP 67
  • CE-approved
  • Vibration and shock tested
  • Max pressure 350 bar
  • Max 70/200/375 L / min v 5 bar pressure drop (depends on spool type)
  • Hysteresis <1%
Datasheet, pricelist
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131004-1-6

Proportional directly operated valve K (B) SDG4V NG-3 size 6

"Power Performance" series valves have very excellent technical data which enables the use of the valve in closed loop circuits have previously been used servo valves.

  • Control signal + / - 10 volts
  • Protection class IP 67/65 (with / without a built-electronics)
  • CE-approved
  • Vibration and shock tested
  • Max pressure 350 bar
  • Max 40 l / min v 70 bar pressure drop (depends on spool type)
  • Hysteresis <0.5%
Datasheet, pricelist
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