Professional China Pump Distributor - Monoblock Valves-GDV80 series – Guorui

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Professional China Pump Distributor - Monoblock Valves-GDV80 series – Guorui Detail:

Rated flow rate：	80L/min
Maximum flow rate：	100L/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

GDV80 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”.

For multi-spool mono-block valve, if one of the spools is in “1” or “2” position,then, there is no flow in its down stream spool’s neutral passage. The main throttle occurs on the valve opening between bridge passage and spool. The operator can control more than one spools, but the magnitude of the flow rate for each controlled spool is dependent on the load.

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Our products are widely recognized and trusted by users and can meet continuously changing economic and social needs for Professional China Pump Distributor - Monoblock Valves-GDV80 series – Guorui, The product will supply to all over the world, such as: Atlanta, belarus, Porto, Our company warmly invites domestic and overseas customers to come and negotiate business with us. Allow us to join hands to create a brilliant tomorrow! We've been looking forward to cooperating with you sincerely to achieve a win-win situation. We promise to try our best to deliver you with high quality and efficient services.

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