High Quality for Agricultural Hydro-Pack Hydraulic Pumps - Monoblock Valves-GDV80 series – Guorui
High Quality for Agricultural Hydro-Pack Hydraulic Pumps - Monoblock Valves-GDV80 series – Guorui Detail:
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Rated flow rate： |
80L/min |
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Maximum flow rate： |
100L/min |
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Maximum pressure at P port： |
310bar |
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Maximum pressure at A/B port： |
310bar |
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Maximum pressure at T port： |
25bar |
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Internal leakage (at 70 bar):A/B toT ： |
30-35CC/min |
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Temperature range of the hydraulic oil： |
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With NBR (BUNA-N) seals |
-20℃-80℃ |
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With FPM (VITON) seals |
-20℃-100℃ |
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Spool stroke (1/2 position)： |
+7/-7 mm |
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With floating function (1/2 and F position)： |
+7/-7 -9 mm |
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Recommend hydraulic oil viscosity range： |
15-75mm²/s |
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Recommend temperature range： |
-40℃-60℃ |
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Solenoid can be either 12 VDC or 24 VDC, corresponding current is 0-1.5 or 0-0.75 Amp. |
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Operating Principle
GDV80 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 pressure drop. When one 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 to parallel passage, then, through the spool opening to work port “A” or “B”.
For multi-spool mono-block valve, if one of the spools is in “1” or “2” position,then, there is no flow in its down stream spool’s neutral passage. The main throttle occurs on the valve opening between bridge passage and spool. The operator can control more than one spools, but the magnitude of the flow rate for each controlled spool is dependent on the load.
Product detail pictures:
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We've been committed to offering easy,time-saving and money-saving one-stop purchasing service of consumer for High Quality for Agricultural Hydro-Pack Hydraulic Pumps - Monoblock Valves-GDV80 series – Guorui, The product will supply to all over the world, such as: Ecuador, Nicaragua, India, We've established long-term, stable and good business relationships with many manufacturers and wholesalers around the world. Currently, we've been looking forward to even greater cooperation with overseas customers based on mutual benefits. You should feel free to contact us for more details.
By Laurel from Guinea - 2016.10.25 15:53
The supplier cooperation attitude is very good, encountered various problems, always willing to cooperate with us, to us as the real God.
By Roxanne from Philippines - 2016.08.15 12:36
