Special Design for Proportional Control Valve - Monoblock Valves-GDV80 series – Guorui
Special Design for Proportional Control Valve - 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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Our target is always to satisfy our customers by offering golden support, superior value and high quality for Special Design for Proportional Control Valve - Monoblock Valves-GDV80 series – Guorui, The product will supply to all over the world, such as: Denmark, Finland, Uruguay, In the increasingly competitive market, With sincere service high quality products and well-deserved reputation, we always offer customers support on products and techniques to achieve long-term cooperation. Living by quality, development by credit is our eternal pursuit, We firmly believe that after your visit we will become long-term partners.
By Kristin from Kenya - 2015.06.18 19:26
This is a very professional and honest Chinese supplier, from now on we fell in love with the Chinese manufacturing.
By Julia from Iceland - 2016.04.08 14:55
