OEM Factory for Dz Mini Hydraulic Station - Monoblock Valves-GDV45 series – Guorui

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OEM Factory for Dz Mini Hydraulic Station - Monoblock Valves-GDV45 series – Guorui Detail:

Rated flow rate: 45L/min
Maximum flow rate: 55L/min
Maximum pressure at P port: 310bar
Maximum pressure at A/B port: 310bar
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): +7/-7 mm
With floating function (1/2 and F position): +7/-7 -9 mm
Recommend hydraulic oil viscosity range: 15-75mm²/s
Recommend temperature range: -40℃-60℃

Operating Principle
w1
GDV45-1 is an one spool valve. It is also an open center, 3 position 4 way valve. When spool is in neutral, flow from pump passes through neutral passage to tank. Produces very little pressure drop. When spool is move to “1” or “2” position, the neutral passage is blocked by spool. The flow from pump has to pass through the parallel passage to provide flow to spool’s metering to work port. The spool stroke is 7mm. For GDV45-1 mono-block valve, it cannot provide power beyond function.
2 Spool Mono-block Valve
z1
GDV45-2 Two spool mono-block valve is also an open center, 3 position 4 way valve. When spool are all in neutral ,flow from pump passes through neutral passage to tank, and produces very little pressure drop. When one of the spool is moved to “1” or “2” position, the neutral passage is blocked by the spool. The flow from pump has to pass through the parallel passage to provide flow to spool’s metering to work port. There are options to choose for location of the inlet port and return port. There is also an option to have power beyond port. If first spool is moved to “1” or “2” position, then, the second spool’s neutral passage has no flow. The operator can operate two spools at the same time, but the speed of the controlled device is dependent on the load of the device.


Product detail pictures:

OEM Factory for Dz Mini Hydraulic Station -
 Monoblock Valves-GDV45 series – Guorui detail pictures


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We enjoy a very good reputation among our customers for our excellent product quality, competitive price and the best service for OEM Factory for Dz Mini Hydraulic Station - Monoblock Valves-GDV45 series – Guorui, The product will supply to all over the world, such as: azerbaijan , Philadelphia , Croatia , Our tenet is "integrity first, quality best". We have confidence in providing you with excellent service and ideal products. We sincerely hope we can establish win-win business cooperation with you in the future!
  • Good quality and fast delivery, it's very nice. Some products have a little bit problem, but the supplier replaced timely, overall, we are satisfied.
    5 Stars By Julia from Tajikistan - 2015.02.04 14:13
    The sales manager is very patient, we communicated about three days before we decided to cooperate, finally, we are very satisfied with this cooperation!
    5 Stars By Pandora from Puerto Rico - 2015.09.19 18:37

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