Nachi America [Home]

Valves

High Response Proportional Flow and Directional Control Valve

Main text

High Response Proportional Flow and Directional Control Valve

High Response Proportional Flow and Directional Control Valve
External view of ESH-G01
  • High-frequency response equivalent to electric/hydraulic servo valve
  • High-output proportional solenoid directly drives spool.
  • Minor feedback with LVDT (Linear variable differential transformer) enables accurate spool positioning.
  • All ports return to block position when amplifier is turned off or connection is disconnected. (Fail-safe function)

Main text

High Response Proportional Flow and Directional Control Valve

ESH-G01-H520A-10 (For rated flow = 20L/min)

Input voltage - Characteristics of flow
Valve pressure drop: 7MPa (71kgf/cm2)
Input voltage - Characteristics of flow Valve pressure drop: 7MPa (71kgf/cm2)
Valve differential pressure
- Characteristics of flow
Valve differential pressure - Characteristics of flow

ESH-G01-H540A-10 (For rated flow = 40L/min)

Input voltage - Characteristics of flow
Valve pressure drop: 7MPa (71kgf/cm2)
���͓d���|���ʓ��� �و��͍~���F7MPa(71kgf/cm2)
Valve differential pressure
- Characteristics of flow
�و����|���ʓ���

Main text

High Response Proportional Flow and Directional Control Valve

  • General industrial machinery including mainly machine tools and forging/forming equipment
  • Carrier device requiring shockless function
  • Test equipment requiring high-speed response
  • Ideal for uses that perform actuator positioning and pressure control with feedback control function.

High Response Proportional Flow and Directional Control Valve    High Response Proportional Flow and Directional Control Valve

Main text

High Response Proportional Flow and Directional Control Valve

Item / Model No. ESH-G01-
H510A-10
ESH-G01-
H520A-10
ESH-G01-
H540A-10
Maximum operating pressure P,A,B
MPa {kgf/cm2}
32
T port allowable back pressure MPa {kgf/cm2} 2.5 {25.5} max
Rated flow rateL/min
(Valve pressure drop 7MPa {71 kgf/cm2})
10 20 35
Maximum flow rate L/min 22 35 50
Limit valve pressure drop MPa {kgf/cm2} 32 21 14
Hysteresis % 0.5 max.
Step response ms
(0to100% Displacement)
16 max. (*1)
Frequency response Hz
(90°C phase delay +/- 10% displacement)
At least 80 (*1)
Center
drift
Supply pressure 0.5% max/FS
(p=25MPa {255kgf/cm2})
Fluid temperature 1.5% max/FS (t=40°C)
Filtration Class NAS9 max.
Operating fluid temperature range °C
(Recommended fluid temperature range °C)
0 to 60 (30 to 60)
Water and dust resistance IP53
Mass kg 2.3

Notes : *1.Maximum flow depends on channel type Mand working pressure.

Main text

High Response Proportional Flow and Directional Control Valve

High Response Proportional Flow and Directional Control Valve

Product Catalog/Flyer