Manufacturer of Dc 12v Mini Hydraulic Power Pack - Monoblock Valves-GDV70 series – Guorui
Manufacturer of Dc 12v Mini Hydraulic 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”.
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.
Product detail pictures:
Related Product Guide:
2012 Star Raider SCL First Ride Review | Komatsu Hydraulic Gear Pump
Powerbox TRG Series & PMP Series External Power Supplies | Sectional Hydraulic Control Valve
No matter new customer or old customer, We believe in long term and trusted relationship for Manufacturer of Dc 12v Mini Hydraulic Power Pack - Monoblock Valves-GDV70 series – Guorui, The product will supply to all over the world, such as: Mali, Karachi, Mexico, Our expert engineering team will generally be prepared to serve you for consultation and feedback. We're able to also give you with free of charge samples to meet your requirements. Best efforts will likely be produced to provide you the best service and merchandise. When you are keen on our business and items, make sure you speak to us by sending us emails or call us quickly. In an effort to know our merchandise and company extra, you may come to our factory to view it. We'll generally welcome guests from all over the world to our business to create business relations with us. Be sure to feel cost-free to speak to us for small business and we believe we are going to share the best trading experience with all our merchants.
By Ophelia from Thailand - 2016.11.11 11:41
We have been looking for a professional and responsible supplier, and now we find it.
By Abigail from Swiss - 2016.05.21 12:31