Factory Supply Control Relief Valve - Monoblock Valves-GDV160 – Guorui
Factory Supply Control Relief Valve - Monoblock Valves-GDV160 – Guorui Detail:
| Rated flow rate： | 160L/min | |
| Maximum flow rate： | 170L/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℃ | |
| Solenoid can be either 12 VDC or 24 VDC, corresponding current is 0-1.5 or 0-0.75 Amp. | ||
Operating Principle
GDV160 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 drop. When on 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 valve to parallel passage, then, through spool opening to work port “A” or “B”.
As shown in above picture, the first spool is in neutral position, flow from pump flows to parallel passage through the load check valve to supply flow to two spool. Because the second spool is pulled out 7mm, the second spool opening between parallel passage to A2 port allows flow to enter the A2 port. B2 port connected to return passage. Neutral passage is blocked by second spool.
Product detail pictures:
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We believe in: Innovation is our soul and spirit. Top quality is our life. Purchaser need is our God for Factory Supply Control Relief Valve - Monoblock Valves-GDV160 – Guorui, The product will supply to all over the world, such as: Rotterdam, Philippines, Portugal, We warmly welcome domestic and overseas customers to visit our company and have business talk. Our company always insists on the principle of "good quality, reasonable price, the first-class service". We are willing to build long-term, friendly and mutually beneficial cooperation with you.
By Cora from Montreal - 2016.12.19 11:10
Production management mechanism is completed, quality is guaranteed, high credibility and service let the cooperation is easy, perfect!
By Rita from New Delhi - 2016.08.16 13:39
