Factory directly Aluminum And Cast Iron Gear Pump - Monoblock Valves-GDV25 series – Guorui

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To create much more price for clients is our company philosophy; purchaser growing is our working chase for Small Hydraulic Pump, Mini Lift Table Hydraulic Power Units, Multiple Directional Valve, We always hold the philosophy of win-win, and build long-term cooperation relationship with customers from around the world.We believe that our growth base on customer's success, credit is our life.
Factory directly Aluminum And Cast Iron Gear Pump - 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.


Product detail pictures:

Factory directly Aluminum And Cast Iron Gear Pump - Monoblock Valves-GDV25 series – Guorui detail pictures


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Persisting in "High good quality, Prompt Delivery, Aggressive Price", we've established long-term cooperation with shoppers from each overseas and domestically and get new and previous clients' high comments for Factory directly Aluminum And Cast Iron Gear Pump - Monoblock Valves-GDV25 series – Guorui, The product will supply to all over the world, such as: Denver, Grenada, Washington, By integrating manufacturing with foreign trade sectors, we can offer total customer solutions by guaranteeing the delivery of right items to the right place at the right time, which is supported by our abundant experiences, powerful production capability, consistent quality, diversified product portfolios and the control of the industry trend as well as our mature before and after sales services. We'd like to share our ideas with you and welcome your comments and questions.
  • Although we are a small company, we are also respected. Reliable quality, sincere service and good credit, we are honored to be able to work with you!
    5 Stars By Amelia from Singapore - 2015.09.21 11:44
    A good manufacturers, we have cooperated twice, good quality and good service attitude.
    5 Stars By Pamela from Qatar - 2015.09.23 18:44

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