OEM manufacturer Hydraulic Gear Pump New Holland Tt45a - Monoblock Valves-GDV80 series – Guorui
OEM manufacturer Hydraulic Gear Pump New Holland Tt45a - 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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Persisting in "High top quality, Prompt Delivery, Aggressive Price", now we have established long-term cooperation with customers from the two overseas and domestically and get new and aged clients' large comments for OEM manufacturer Hydraulic Gear Pump New Holland Tt45a - Monoblock Valves-GDV80 series – Guorui, The product will supply to all over the world, such as: America, Italy, Atlanta, Our factory covers an area of 12,000 square meters, and has a staff of 200 people, among which there are 5 technical executives. We are specialized in producing.We have rich experience in export. Welcome to contact us and your enquiry will be replied as soon as possible.
By Eve from Paris - 2016.12.19 11:10
We have been engaged in this industry for many years, we appreciate the work attitude and production capacity of the company, this is a reputable and professional manufacturer.
By Heloise from Saudi Arabia - 2015.12.10 19:03
