Dir. valves, prop/servo. Cetop | Hydraulics | Valves | Proportional valves

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

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

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

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

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

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

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

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

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

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

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

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

Bergen	T +47 55 10 82 20
CCB-Ågotnes	T +47 934 56 607
Kongsberg	T +47 48 06 56 56
Kristiansand	T +47 38 10 22 90
Rissa	T +47 73 85 05 00
Ski	T +47 64 97 97 97
Trondheim	T +47 73 80 10 00

Servi Ulsteinvik AS
Ulsteinvik	T +47 70 31 85 50
Ålesund	T +47 96 91 96 01

Servi Hydraulik AB
Gøteborg	T +46 (0)31 745 00 62

Hydraulics

Directional valves, prop/servo. Cetop-pattern

Ex-proof proportional valves with integral digital drivers

Proportional valves with ATEX approval series DHZA and DPZA

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

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

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

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

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

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

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

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

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

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