Northman Hydraulic Co.,Ltd Agent (ZHANGFA Hydraulic) Northman Hydraulic Co.,Ltd Agent (ZHANGFA Hydraulic)

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  • Northman Pilot Operated Relief Valve RF-G06-1-32-N
Northman Pilot Operated Relief Valve RF-G06-1-32-N

Northman Pilot Operated Relief Valve RF-G06-1-32-N

Northman Pilot Operated Relief Valve RF-G06-1-32-N

How to order:

Northman Pilot Operated Relief Valve RF-G06-1-32-N
Northman Pilot Operated Relief Valve RF-G06-2-32-N
Northman Pilot Operated Relief Valve RF-G06-3-32-N

Northman Pilot Operated Relief Valve RF-G04-1-32-N
Northman Pilot Operated Relief Valve RF-G04-2-32-N
Northman Pilot Operated Relief Valve RF-G04-3-32-N

Northman Pilot Operated Relief Valve RF-G10-1-32-N
Northman Pilot Operated Relief Valve RF-G10-2-32-N
Northman Pilot Operated Relief Valve RF-G10-3-32-N

Relief valve main function:
Constant pressure overflow: in the throttling regulating system of the fixed pump, the fixed pump provides a constant flow. When the system pressure increases, it will reduce the flow demand. At this time, the overflow valve opened, so that excess flow overflow back to the tank, ensure the overflow valve inlet pressure, that is, the pump outlet pressure is constant (valve mouth often open with pressure fluctuations).
 
Pressure stabilizing effect: the overflow valve is connected in series on the return oil circuit, the overflow valve generates back pressure, and the stability of moving parts increases.
 
System unloading function: in the remote control port of the overflow valve series overflow small flow of the solenoid valve, when the electromagnet is energized, the remote control port of the overflow valve through the oil tank, at this time the hydraulic pump unloading. The overflow valve is used as the unloading valve at this time.
 
Safety protection: when the system is working normally, the valve is closed. Only when the load exceeds the specified limit (the system pressure exceeds the setting pressure), the overflow is opened to protect the overload, so that the system pressure will not increase (usually the setting pressure of the overflow valve is 10% ~ 20% higher than the highest working pressure of the system).
 
In practical application, it is generally used as unloading valve, remote pressure regulating valve, multi-stage control valve with high and low pressure, and sequence valve to generate back pressure (string on the return oil circuit).
 
Overflow valve generally has two kinds of structure: 1, direct action overflow valve. 2, pilot overflow valve.
 
The main requirements of overflow valve: large pressure regulating range, small pressure regulating deviation, small pressure pendulum, sensitive action, overload capacity, small noise.

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