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
Series		Type	Voltage(V)
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
			Frequency HZ
			50	60		50/60
P：Internal Pilot *P：External Pilot	D：Internal Drain *D：External Drain

 

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

Initial state   switch action status Switch Point

A normally closed   B normally opened

Input Voltage 18-28V (DC)

Output

4   2

A B

MAX Current 0.4A

VCC 1   0V 3

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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