Directional Valve With Linear Variable Differential Transformer (LVDT)
HD-***-G02-DL-P-AC/DC
Description of Model
HD |
*** |
G0* |
DL |
Directional Control Valve |
Spool Type |
Valve Size |
Wiring Connection |
High Flow Wet Pin Solenoid Directional Control Valve |
Refer List of Spool Function |
G02:1/4"(D03)(NG06) G03:3/8"(D05)(NG10) |
DL: Din type |
Solenoid Controlled Pilot Operated Directional Valve |
Refer List of Spool Function |
G04:1/2
DN16 nominal diameter G06:3/4
DN25 nominal diameter |
|
B/E/P-D |
P |
AC/DC/RF |
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Series |
Type |
Voltage(V) |
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B: High Efficiency & Low Current Solenoid Directional Control
Valve |
E: Standard High Flow Wet Pin Design Valve |
P: Position |
AC110 |
AC220 |
DC12 |
DC24 |
RF110 |
RF220 |
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Frequency HZ |
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50 |
60 |
50/60 |
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P:Internal
Pilot *P:External
Pilot |
D:Internal
Drain *D:External
Drain |
|
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Operation Principle
The safety valves enable
accurate spool positioning by the movement on and off of the magnetic field and
the position sensing point which built into LVDT (Linear Variable Differential
Transformer).
The output signals from the
sensors and entering the industrial computer, by this operator data computing
to control or drive hydraulic components and other mechanical structures.
Features
A.
The safety valves get 4 sizes: G02,
G03, G04, G06 suitable for the use of the different flows of hydraulic
components.
B.
Protection class reaches IP67,
stainless steel housing is strong with beautiful.
C.
Electronic Specification
Input
Supply Voltage |
18~24VCD(±10%) |
Recommended Output Current per Channel |
≦50mA |
MAX Output
Current per Channel |
400mA |
MAX Output Drop |
≦6V |
Switch Point Deviation |
≦0.5mmc |
Ambient Temperature |
0~50°C |
Protection Class |
IP67 |
D.
Statement of Connector and wiring
1.
VCC (18~28V,
DC), Red wire.
2.
Output B, White wire.
3.
GND, Black wire.
4.
Output A, Blue wire.
5.
The shield wire connected with the
junction box.
6.
The switch dedicated to the process
of monitoring.
7.
When the trigger point is reached,
output A (4 pin) non-conductive – normally closed.
8.
Output B (2 pin) conductive-normally
opened.
9.
The distance of switching operation
is due to the inner tube from the outer tube on the moving position or spool’s
thread to adjust.
Notes
1. When the LVDT
(Linear Variable Differential Transformer) is used in the inductive load, such
as the motor, the relay coil, etc. If the contact point’s contacts open (load
circuits) will produce high induced voltage and the impact (Instantaneous) of
the high induced voltage may damage the LVDT or significantly reduce the safety
valve life. For this reason, recommend that the client use a surge protection
device.
2. Don’t re-adjust
the safety valve main body.
Don’t transfer the internal and external components of the safety valve.
Don’t change or transfer the throttle body of the safety valve.
3. The LVDT of the
safety valve can only be set and checked by the manufacturer.
4. The hydraulic
system must ensure that the spools to avoid shock or vibration.
5. Avoid the safety
valve fall to the hard ground from higher than 30㎝.
6. Avoid the
pollution of the hydraulic oils; otherwise, it will reduce the safety valve
life even damage. Filters should use the filtration: âX
= 75im, X = 25im class.
7. The hydraulic oils
should use the ISO VG32 or ISO VG45 degree’s hydraulic oils and hydraulic
fluid.
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