Hot-selling Hydraulic Valve Coil - Monoblock Valves-GDV25 series – Guorui

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"Quality first, Honesty as base, Sincere service and mutual profit" is our idea, in order to develop continuously and pursue the excellence for Tractor Hydraulic Power Steering Control Units, Dump Truck Hydraulic Valves, Hydraulic Power Unit 48v, Our hugely specialized process eliminates the component failure and offers our consumers unvarying high quality, allowing us to control cost, plan capacity and maintain consistent on time delivery.
Hot-selling Hydraulic Valve Coil - Monoblock Valves-GDV25 series – Guorui Detail:

Rated flow rate 25L/min
Maximum flow rate 30L/min
Maximum pressure at P port 250bar
Maximum pressure at A/B port 250bar
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) +5.5/-5.5 mm
With floating function (1/2 and F position) +5.5/-5.5 -8 mm
Recommend hydraulic oil viscosity range 15-75mm²/s
Recommend temperature range -40℃-60℃

Order Code Example

GDV25

-3

-P1

/210

-T1

-D1

-O1

-FG1

KQ1

-DC/00

Model

3 spool

Inlet port on top

Inlet relief setting(210bar)

Return port on top

Power beyond

First spool

Spool function

Standard manually control

 

-O2

-FG2

-KQ5

-DC/24

Second spool

Spool function

Electrical controlled with detent

24VDC

-O3

-FG2

-KQ2

-DC/00

Third

Spool function

Hydraulic remote controlled

Not electrical

GDV25 series mono-block valve is an open center,3 position 4 way valve. Flow from pump passes through inlet port and enters to inlet passage.The inlet passage connects two passage:one is through the load check into the parallel passage to supply flow to metering spool;Another is to neutral passage .When spool is in neutral position,spool metering with parallel passage is blocked.The oil from pump has to pass through neutral passage.When all spools are in neutral position ,parallel passage for each spool is blocked,and neutral passage is wide open.Therefore,oil from pump is directly passing through the neutral passage to return passage to tank.It produces small pressure drop from “P” to “T”.When one of the spools is moved to “1” or “2” position,the spool blocked the neutral passage.The flow from pump has to pass load check to parallel passage,then through valve opening between parallel passage and spool to work port “A” or “B”. For multi-spool mono-block valve, when one of its spools is in “1” or “2” position,its downstream of the neutral passage has no flow. The operator can operate more than one spools at a time, but the speed of the controlled device will be dependent on the magnitude of the load.


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Hot-selling Hydraulic Valve Coil - Monoblock Valves-GDV25 series – Guorui detail pictures


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To be a result of ours specialty and repair consciousness, our corporation has won an excellent reputation amongst customers all around the entire world for Hot-selling Hydraulic Valve Coil - Monoblock Valves-GDV25 series – Guorui, The product will supply to all over the world, such as: Nepal, Norwegian, Florida, So far our merchandise have been exported to east Europe, the Middle East, Southeast, Africa and South America etc. We have now 13years experienced sales and purchase in Isuzu parts at home and abroad and the ownership of the modernized electronic Isuzu parts checking systems. We honor our core principal of Honesty in business, priority in service and will do our best to provide our customers with high quality items and excellent service.
  • This supplier offers high quality but low price products, it is really a nice manufacturer and business partner.
    5 Stars By Queena from Kuwait - 2016.03.28 12:22
    Adhering to the business principle of mutual benefits, we have a happy and successful transaction, we think we will be the best business partner.
    5 Stars By Aurora from US - 2015.12.28 15:18

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