Main Control Valve
Introduction
The main control valve for forklift truck is composed of several sections and valves. It controls fork lifting, master tilting, and auxiliary moving functions.
The valve mainly functions as a directional control valve, but it also has several pressure and flow control valves, such as relief valve, flow regulator(down control)valve, tilt and lift lock valves. Also, additional safety functioning valves can be attached as in ISO type.
Features
- By incorporating HYDROSTAT function, energy is reduced and heat generation is minimized.
- Tilt lock valve prevents the accidental forward tilting if the lever is operated while engine is switched off.
- Flow Regulator control the work's down speed.
- Lift lock valve increase user's safety by preventing abnormal free fall of the fork.
- In ISO type, when driver gets out of the seat or the engine stops during operation, the valve prevent accident by cutting off the flow to the directional control part.
Dimensions
2~3 Ton Class Fork LIft Truck (Specifications)
Nominal Flow Rate |
95 l/min |
Operating Pressure(Max) |
250 bar |
Relief Valve Setting Pressure |
Main |
210 bar |
Auxiliary |
165 bar |
Back Pressure |
Peak |
15 bar |
Max |
10 bar |
Fluid |
Mineral Oil ISO VG 46 |
Fluid Temperature |
-30°C ~-100°C |
Dimensional Data
Standard type
Type |
A(mm) |
B(mm) |
C(mm) |
2 sections |
143.5 |
116.2 |
117.3 |
3 sections |
181.6 |
154.3 |
117.3 |
4 sections |
219.7 |
192.4 |
117.3 |
ISO type
Type |
A(mm) |
B(mm) |
C(mm) |
2 sections |
143.5 |
116.2 |
117.3 |
3 sections |
181.6 |
154.3 |
117.3 |
4 sections |
219.7 |
192.4 |
117.3 |
3.5~4.5 Ton Class Fork Lift Truck (Specifications)
Max Flow Rate |
130 l/min |
Operating Pressure(Max) |
240 bar |
Relief Valve Setting Pressure |
Main |
210 bar |
Secondary |
150 bar |
Back Pressure |
Peak |
15 bar |
Max |
10 bar |
Fluid |
Mineral Oil ISO VG 46 |
Fluid Temperature |
-30°C ~-100°C |
Dimensional Data
Type |
A(mm) |
B(mm) |
C(mm) |
2 sections |
229.1 |
133.5 |
152.4 |
3 sections |
279.9 |
184.3 |
152.4 |
4 sections |
330.7 |
235.1 |
152.4 |
5~8 Ton Class Fork Lift Truck (Specifications)
Max Flow Rate |
160 l/min |
Operating Pressure(Max) |
240 bar |
Relief Valve Setting Pressure |
Main |
188 bar |
Secondary |
153 bar |
Back Pressure |
Peak |
15 bar |
Max |
10 bar |
Fluid |
Mineral Oil ISO VG 46 |
Fluid Temperature |
-30°C ~-100°C |
Dimensional Data
Type |
A(mm) |
B(mm) |
C(mm) |
2 sections |
211.1 |
133.5 |
152.4 |
3 sections |
261.9 |
184.3 |
152.4 |
4 sections |
312.7 |
235.1 |
152.4 |
Wheel Loader Class (Specifications)
Max Flow Rate |
180 l/min |
Operating Pressure(Max) |
240 bar |
Relief Valve Setting Pressure |
Main |
210 bar |
Secondary |
240 bar |
Back Pressure |
Peak |
15 bar |
Max |
10 bar |
Fluid |
Mineral Oil ISO VG 46 |
Fluid Temperature |
-30°C ~-100°C |
Dimensional Data
Type |
A(mm) |
B(mm) |
C(mm) |
2 sections |
202.2 |
133.3 |
152.4 |
3 sections |
253.0 |
184.1 |
152.4 |