Renewable Design for 12v Dc Power Pack - Monoblock Valves-GDV70 series – Guorui

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Along with the "Client-Oriented" small business philosophy, a rigorous high-quality handle system, highly developed producing machines and a powerful R&D group, we always supply high-quality products and solutions, fantastic services and aggressive costs for Multiple Directional Control Valve , Agricultural Electric Spray Pump , Agricultural Electric Spray Pump , We always welcome new and old customers presents us with valuable advice and proposals for cooperation, let us grow and develop together, and to contribute to our community and staff!
Renewable Design for 12v Dc Power Pack - Monoblock Valves-GDV70 series – Guorui Detail:

Rated flow rate: 70L/min
Maximum flow rate: 80L/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
GDV70 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”.GDV70-1
As shown in above picture, when first spool is in neutral, flow from pump passes through load check valve and center the parallel passage to supply flow to both spool. Due to second spool is moved to “2” position, the flow from parallel passage flows to “A2” through the spool opening. The flow from “B2” flows to return passage through the spool’s another opening. Neutral passage is blocked by the second spool.

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Renewable Design for 12v Dc Power Pack -
  Monoblock Valves-GDV70 series – Guorui detail pictures

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We not only will try our greatest to offer you excellent services to just about every client, but also are ready to receive any suggestion offered by our buyers for Renewable Design for 12v Dc Power Pack - Monoblock Valves-GDV70 series – Guorui, The product will supply to all over the world, such as: Russia , Canada , Nigeria , With the goal of "zero defect". To care for the environment, and social returns, care employee social responsibility as own duty. We welcome friends from all over the world to visit and guide us so that we can achieve the win-win goal together.
  • The goods are very perfect and the company sales manager is warmful, we will come to this company to purchase next time.
    5 Stars By Nicole from Montreal - 2015.06.28 19:27
    Good quality, reasonable prices, rich variety and perfect after-sales service, it's nice!
    5 Stars By Doris from Slovakia - 2015.12.05 13:53

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