Time of publication:

2023-11-06

1. Cleaning The surface of the valve, the trapezoidal thread on the valve stem and the valve stem nut, the sliding part of the valve stem nut and the bracket, and the gears, worm gears and other components are easy to accumulate a lot of dust, oil and media residues, which will cause wear and corrosion to the valve. Therefore, it is obviously very important to keep the external and active parts of the valve clean and protect the integrity of the valve paint. The dust on the valve is suitable for brush sweeping and compressed air purging. Trapezoidal thread and stolen goods between teeth are suitable for wiping with rag. Oil stains and residues on the valve are suitable for steam purging, even copper wire brushing, until the processed surface and mating surface show metallic luster, and the paint surface shows the natural color of paint. Trap should be responsible for a special person, check at least once per shift, regularly open the flush valve and trap at the bottom of the plug for flushing, or regularly disassemble the flushing, so as to avoid the stolen goods blocking the valve. 2. Lubrication of valve Valve trapezoidal thread, stem nut and bracket sliding parts, bearing parts, gear and worm gear, worm meshing parts and other cooperating parts, all need good lubrication conditions to reduce mutual friction and avoid mutual wear. Some parts are specially equipped with oil cup or nozzle. If it is damaged or lost in operation, it should be repaired and equipped, and the oil circuit should be dredged. Lubrication parts should be regularly refueled according to specific conditions. Often open, high temperature valve is suitable for intervals of a week to a month refueling once; not often open, the temperature is not high valve refueling cycle can be longer. Lubricant organic oil, butter, molybdenum disulfide and graphite. High temperature valve is not suitable for oil, butter, they will be due to high temperature melting and loss, and suitable for injection of molybdenum disulfide and wipe graphite powder. For exposed parts that need lubrication, such as trapezoidal threads, gears and other parts, if grease such as butter is used, it is easy to be contaminated with dust, while molybdenum disulfide and graphite powder are used for lubrication, it is not easy to be contaminated with dust, and the lubrication effect is better than yellow. Graphite powder is not easy to apply directly, a little oil or water can be used to adjust the paste. The plug valve of the oil filling seal should be filled with oil according to the specified time, otherwise it is easy to wear and leak.