Ruiji hydraulic accumulator solenoid valve

What is a hydraulic accumulator?

An accumulator is a vessel that stores, maintains, and recovers pressure in a hydraulic system. You might be familiar with most hydraulic components, such as pumps, valves, motors, and actuators, but the accumulator is another very important component. Figure 1. A hydraulic accumulator located within a fluid system.

Can a poppet valve energize solenoid C1?

Energizing solenoid C1 when the actuators are moving is possible with a correctly designed poppet valve. Notice the blocked position of the valve has a check valve symbol, meaning it only stops flow to the accumulator. This type of poppet valve provides accumulator volume to the actuators when pressure is low.

Do accumulators need automatic discharge valves?

When using an accumulator, it is necessary to install a manual or automatic function to de-pressurize all fluid before working on the circuit. Several manufacturers make automatic discharge valves that work well. These automatic discharge valves are explained at the end of this section. 1.

How do you use a 2-way solenoid valve?

Wire the solenoid on the 2-way valve to close when the pump is running. Any time the pump stops, the 2-way solenoid valve de-energizes and discharges stored oil to tank. A solenoid-operated valve works well in most cases but can cause problems.

What does a hydraulic accumulator compensate for?

The accumulator compensates the loss in volume and thus maintains circuit pressure virtually constant. A leak in a hydraulic circuit can lead to pressure drop. The energy supplied by a given load can be absorbed by the accumulator and put back into a hydraulic cylinder to produce a mechanical movement.

What does accumulator relief / unload / dump valve do?

With the accumulator relief/unload/dump valve, stored oil in the accumulator discharges to tank when the pump stops. This makes the circuit safe to work on shortly after locking and tagging out the pump. Figure 1-14.