Firstly, it is important to regularly check the overall operation status of the hydraulic station in the environmentally friendly hydraulic system, while paying special attention to the usage of the system's internal components. The main purpose is to ensure that the internal environment of the system is clean and that no debris enters the hydraulic system. If the oil is found to be dirty, a filter should be used immediately for filtration. If the oil deteriorates, it needs to be replaced in a timely manner.

Secondly, if it is necessary to make appropriate adjustments to the environmentally friendly hydraulic station during work, the handles of the relevant valves should not be turned arbitrarily after adjustment to prevent affecting the normal operation of the hoist braking system. In addition, staff need to regularly check the valves on the safety braking device and the connection status of each screw.

Thirdly, if it is necessary to replace the oil pipe in the hydraulic station, acid washing treatment should be carried out first after welding the new oil pipe. Otherwise, it may affect the cleanliness of the oil in the entire system.

In general, during the use of environmentally friendly hydraulic system hydraulic stations, the staff must regularly filter the hydraulic oil, usually every six months. Special attention should be paid that even new oil does not necessarily mean it is truly clean, so it must be filtered before being injected into the system. At the same time, it is necessary to regularly clean the mesh oil filter, at least once every six months.

The deformation chamber of the valve seat plate spring has poor sealing performance, resulting in silicon powder entering the deformation chamber of the valve seat plate spring, causing the plate spring to be blocked and fail. After that, the ball valve is locked by the valve seat and cannot be opened and closed well.

2. Silicon powder enters the middle chamber between the valve body and the ball during valve opening and closing, causing the ball to lock and preventing the valve from opening and closing smoothly. But the reason for this requires a working condition, which is that the silicon powder can only bond inside the cavity when it is moist. And silicon powder will not cause this kind of locking in dry or fluid conditions. If the silicon powder causes lock up in dry or fluid conditions, it means that the silicon powder has entered the deformation chamber of the valve seat plate spring.

Solution to the above two methods of causing forged steel ball valves to lock up:

The 1 Kezhong valve adopts a fully "O" - shaped sphere, double seat, and plate spring loading structure. The seat seal is designed as a wide face knife structure, which can remove the silicon powder adhered to the sphere during valve opening and closing, and has self cutting self-cleaning function. The plate spring adopts a double graphite sealing structure, which not only seals the valve, but also seals the plate spring. The medium will not enter the deformation chamber of the plate spring, so that the plate spring will not be blocked or fail, and can meet the requirements of long-term use.

2. In the special situation where the valve cavity is blocked by damp silicon powder and cannot be opened or closed, we generally recommend that customers strengthen the drying effect of silicon powder or use the V-shaped hemispherical valve introduced by Kezhong Valve to solve this blockage problem.

A、 start-up process

1. In the closed position, the ball is pressed tightly against the valve seat by the mechanical pressure exerted by the valve stem.

When the handwheel is turned counterclockwise, the valve stem moves in the opposite direction, and its bottom angular plane causes the ball to detach from the valve seat.

3. The valve stem continues to lift and interacts with the guide pin in the spiral groove of the valve stem, causing the ball to start rotating frictionlessly.

4. Until it reaches the fully open position, the valve stem is lifted to the limit position, and the ball rotates to the fully open position.

B、 Closing process

When closing, rotate the handwheel clockwise and the valve stem begins to descend, causing the ball to move away from the valve seat and begin to rotate.

2. Continue to rotate the handwheel, and the valve stem is acted upon by the guide pin embedded in its spiral groove, causing both the valve stem and the ball to rotate 90 ° simultaneously.

When it was about to close, the sphere had already rotated 90 degrees without contact with the valve seat.

During the last few turns of the handwheel, the angular plane at the bottom of the valve stem mechanically wedges and presses the ball tightly against the valve seat, achieving a sealing effect.

1. Suitable wrenches should be used when operating manual valves. It is strictly prohibited to use large wrenches for small valves and small wrenches for large valves. It is also strictly prohibited to add force rods to the wrench for operation.

2. When operating the valve, stand on the side of the valve handwheel. It is strictly prohibited to operate in the direction of the valve stem to prevent the medium in the pipeline from leaking and spraying out from the valve disc root, which may cause injury.

3. Use a wrench to operate the manual door. Before operation, the wrench and valve handwheel must be securely fastened to prevent slipping and injury. (Especially when standing on a potentially slippery ground)

4. The operation should be carried out with arm strength, and it is strictly prohibited to rely on body weight to prevent the wrench from slipping and falling.

5. When operating valves in acid and alkali pipelines, if there is a possibility of system leakage or direct contact with acid and alkali, labor protection equipment must be worn to prevent acid and alkali injuries, and a dedicated person must be assigned to supervise and take preventive measures.

6. All steam and water sampling valves must be operated manually, and the use of wrenches is strictly prohibited. Gloves should be worn during operation to prevent burns. If there is a leak, fire-resistant clothing should be worn.