Firstly, it is necessary to ensure that the interface between the valve plug and the valve body is fully compatible to avoid leakage. Secondly, when opening and closing the rotary valve plug, the force should be kept moderate to avoid damage caused by excessive force. In addition, it is necessary to regularly inspect various components of the valve, such as the packing gland, to ensure that they are in good condition, thereby ensuring the normal use of the valve.
1) Straight through plug valves are mainly used to cut off the flow of media, and can also be used to regulate the flow rate or pressure of media.
2) Three way and four-way plugs are commonly used to change the flow direction of the medium or to distribute the medium.
3) The installation direction of the plug valve is flexible, it can be installed horizontally or vertically, and the flow direction of the medium is not restricted.
4) By equipping with electric, hydraulic or pneumatic operating mechanisms, the plug valve can achieve remote control or automatic control.
3. Common faults and solutions:
(1) Treatment method for oil cup leakage:
a、 If there is oil leakage at the screw thread of the oil cup, you can try tightening the oil cup.
b、 If the oil cup leaks oil, it is necessary to add grease or replace the oil cup.
(2) Solution for hand wheel tightness:
a、 Inject lubricating oil.
b、 Empty and dismantle the lower part of the valve body, adjust the displacement of the top screw.
(3) Handling of internal leakage issues:
a、 Inject sealing grease.
b、 Repair or replace the sealing surface.
4. Daily maintenance measures:
Cleaning: Regularly clean the valve body and surrounding debris to maintain a clean state.
Turning: Regularly operate the plug valve manually or electrically to ensure its flexible rotation.
Add lubricating oil: lubricate the friction parts to reduce wear.
Greasing: Apply grease to the sealed area to enhance the sealing effect.