Hydraulically controlled one-way valve is a valve that flows in the opposite direction by controlling fluid pressure.The valve plays an important role in the hydraulic auxiliary equipment of coal mine machinery.The difference between the hydraulic control one-way valve supplied by zhejiang capsule accumulator and the ordinary one-way valve lies in that there are many control oil channels. When the oil channel is controlled and the pressure oil is not put in, the hydraulic control one-way valve works just like the ordinary one-way valve. The pressure oil flows from the oil inlet to the oil outlet and cannot flow in reverse.

When the oil circuit is controlled by the pressure input, the piston push rod moves to the right under the action of the pressure oil.If the oil outlet is larger than the oil port, the bi-directional hydraulic lock of the reverse flow of oil is a special valve designed to prevent the foot of the vertical foot hydraulic cylinder from "dropping foot" when the foot of the construction machinery is locked in the oil path. It is composed of two hydraulic control one-way valves.There is a gap leakage phenomenon in the slide valve reversing valve. The supply of ningbo capsule accumulator cannot maintain pressure in a short time.

When there is a pressure retaining requirement, the hydraulic control one-way valve on the oil circuit can keep pressure for a long time by taking advantage of the tightness of the cone valve closing.