OEM China Dump Truck Hydraulic Valves - Monoblock Valves-GDV160 – Guorui

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continue on to further improve, to make sure product top quality in line with market and consumer standard requirements. Our firm has a excellent assurance program have already been established for Hydraulic Power Unit For Tipping Trailer , Engine Powered Hydraulic Pump , Small Electric Hydraulic Power Units/Packs , Welcome to make contact with us if you're fascinated inside our product, we are going to provide you with a surprice for Qulity and Value.
OEM China Dump Truck Hydraulic Valves - Monoblock Valves-GDV160 – Guorui Detail:

Rated flow rate: 160L/min
Maximum flow rate: 170L/min
Maximum pressure at P port: 310bar
Maximum pressure at A/B port: 310bar
Maximum pressure at T port: 25bar
Internal leakage (at 70 bar):A/B toT : 30-35CC/min
Temperature range of the hydraulic oil:  
With NBR (BUNA-N) seals -20℃-80℃
With FPM (VITON) seals -20℃-100℃
Spool stroke (1/2 position): +7/-7 mm
With floating function (1/2 and F position): +7/-7 -9 mm
Recommend hydraulic oil viscosity range: 15-75mm²/s
Recommend temperature range: -40℃-60℃
Solenoid can be either 12 VDC or 24 VDC, corresponding current is 0-1.5 or 0-0.75 Amp.

Operating Principle
180
GDV160 series mono-block valve is an open centered 3 position 4 way valve. When spool is in its neutral position, the flow from pump passes through the neutral passage to tank., with very low drop. When on of the spool is moved to “1” or “2” position, the neutral passage is blocked. The flow from pump can only pass through load check valve to parallel passage, then, through spool opening to work port “A” or “B”.
180c
As shown in above picture, the first spool is in neutral position, flow from pump flows to parallel passage through the load check valve to supply flow to two spool. Because the second spool is pulled out 7mm, the second spool opening between parallel passage to A2 port allows flow to enter the A2 port. B2 port connected to return passage. Neutral passage is blocked by second spool.


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OEM China Dump Truck Hydraulic Valves -
 Monoblock Valves-GDV160 – Guorui detail pictures


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    5 Stars By Ella from Germany - 2016.02.14 13:19
    The after-sale warranty service is timely and thoughtful, encounter problems can be resolved very quickly, we feel reliable and secure.
    5 Stars By Alan from Chile - 2015.02.08 16:45

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