Newly Arrival Portable Aluminum Mini Road Bicycle Hand Pump - Monoblock Valves-GDV80 series – Guorui
Newly Arrival Portable Aluminum Mini Road Bicycle Hand Pump - 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:
Related Product Guide:
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Our primary objective is usually to offer our shoppers a serious and responsible small business relationship, offering personalized attention to all of them for Newly Arrival Portable Aluminum Mini Road Bicycle Hand Pump - Monoblock Valves-GDV80 series – Guorui, The product will supply to all over the world, such as: San Francisco, Australia, Stuttgart, we rely on own advantages to build a mutual-benefit commerce mechanism with our cooperative partners. As a result, we have gained a global sales network reaching the Middle East, Turkey, Malaysia and Vietnamese.
By Renee from Jamaica - 2016.06.22 12:49
This enterprise in the industry is strong and competitive, advancing with the times and develop sustainable, we are very pleased to have a opportunity to cooperate!
By Elvira from Juventus - 2015.12.22 12:52
