Z80 Series Monoblock Control Valves with Metering Curve


Nominal flow rate: 80 liter/min
Max. Pressure: P: 315 bar, T: 50 bar, A-B: 300 bar
Spool type: Standard open center spool (A spool), different spool options
Number of spools: From 1 to 4
Leakage: 6 cm3/min at 100 bar (From A,B to T)
Fluid temperature range: -10 oC … +80 oC
Working fluid: Mineral based hydraulic oil
Viscosity: 10-100 cSt (46 cSt mineral based hydraulic oil is recommended, may vary in different climates)
Filtration: 10 to NAS 1638

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Directional control valves are one of the core elements in a hydraulic circuit. They help directing the fluid to different components in the system.

Directional control valves perform only three functions:

  1.   Stop fluid flow
  2.   Allow fluid flow
  3.   Change direction of fluid flow

There is a part called «spool» inside control valve which can be operated mechanically or electrically. The movement of the spool lets oil flow or blocks the oil flow in other words it controls the movement of fluid. Hidros provide monoblock directional control valves with different capacities and spool control options such as hydraulic, pneumatic or with cables/joysticks.

There are grooves and notches on Z80 spools. These grooves and notches provide lubricating oil film, less internal leakage and smooth transaction between working ports.

Code Number of levers Nominal flow rate
L/min
Max. pressure
P port
bar
Z80-A1-GKZ1 1 80 315
02Z80-A1A1-GKZ1 2 80 315
03Z80-A1A1A1-GKZ1 3 80 315
04Z80-A1A1A1A1-GKZ1 4 80 315
05Z80-A1A1A1A1A1-GKZ1 5 80 315
06Z80-A1A1A1A1A1A1-GKZ1 6 80 315
* Standard spool is open center “A” spool with spring return. Working port threads are G 1/2”.
For different specifications please contact us.

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