New Delivery for Wholesale 12v 24 Dc Hydraulic Power Unit - Monoblock Valves-GDV70 series – Guorui
New Delivery for Wholesale 12v 24 Dc Hydraulic Power Unit - 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:
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Our commission is always to provide our customers and clientele with best quality and aggressive portable digital products for New Delivery for Wholesale 12v 24 Dc Hydraulic Power Unit - Monoblock Valves-GDV70 series – Guorui, The product will supply to all over the world, such as: Latvia, Wellington, Venezuela, Taking the core concept of "to be the Responsible". We will redound up on society for high quality products and good service. We will initiative to participate in international competition to be a first- class manufacturer of this product in the world.
By Gill from Indonesia - 2016.10.27 12:12
In general, we are satisfied with all aspects, cheap, high-quality, fast delivery and good procuct style, we will have follow-up cooperation!
By Albert from Mombasa - 2016.07.07 13:00
