OEM/ODM Supplier Portable Hydraulic Power Unit - Monoblock Valves-GDV25 series – Guorui
OEM/ODM Supplier Portable Hydraulic Power Unit - 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:
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We have been experienced manufacturer. Wining the majority of your crucial certifications of its market for OEM/ODM Supplier Portable Hydraulic Power Unit - Monoblock Valves-GDV25 series – Guorui, The product will supply to all over the world, such as: French, Casablanca, Chile, By integrating manufacturing with foreign trade sectors, we can present total customer solutions by guaranteeing the delivery of right merchandise to the right place at the right time, which is supported by our abundant experiences, powerful production capability, consistent quality, diversified products and the control of the industry trend as well as our maturity before and after sales services. We'd like to share our ideas with you and welcome your comments and questions.
By Christine from Gambia - 2016.05.02 11:33
As a veteran of this industry, we can say that the company can be a leader in the industry, select them is right.
By Modesty from Congo - 2015.06.05 13:10
