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How should the valve run and maintain during the operation of the valve
Release date：2018/5/23
The principle of maintenance in the operation of the valve is as follows:
1.Keep the valve external and active parts clean, and protect the integrity of valve paint. The surface of the valve, the stem and the stem nut on the trapezoidal thread, the stem nut and the sliding part of the bracket, and the gear, worm and worm and other parts easily deposit a lot of dirt, oil pollution and medium residue and other dirt, and produce wear and corrosion to the valve. Therefore, clean valves should be kept regularly. The general dust on the valve is suitable for brush sweep and compressed air blowing, or even can be washed with copper wire brush until the surface of the machining surface and the face show the metallic luster, and the paint surface shows the original color of the paint. The steam trap should be responsible for each class at least once at least once; regularly open the flushing valve and steam drain valve bottom to flush, or disassemble it regularly to avoid dirty objects blocking the valve.
2. The lubrication of the valve, the trapezoid thread of the valve, the sliding part of the stem nut and the support of the stem, the meshing part of the bearing position, the gear and the worm wheel and the other parts of the worm wheel need good lubrication, reducing the friction between each other and avoiding the mutual wear. For those parts that are not easily damaged or lost during operation, the lubrication system should be repaired and the dredging of the oil passage should be restored.
The lubricating parts should be refueling regularly according to the specific conditions. Frequently opened, high temperature valves are suitable to be refueling once a week to a month; the valve cycle which can not be opened frequently and the temperature is not high can be longer. Lubricants include oil, butter, molybdenum disulfide and graphite. Oil is not suitable for high temperature valves; butter is not very suitable. They will be lost due to high temperature melting. High temperature valves are suitable for adding molybdenum disulfide and rubbing graphite powder. The lubricating parts, such as trapezoid thread and teeth, are easily tainted with grease such as butter, such as trapezoid thread and tooth, and the use of molybdenum disulfide and graphite powder is not easy to be stained with dust and the effect of lubrication is better than butter. The graphite powder is not easy to apply directly. It can be used with a little oil or water to synthesize the paste.
The oil filled sealed stopcock should be oiling according to the prescribed time, otherwise it will wear and leak easily.
3. keep two pieces complete and complete. Bolts for flanges and supports shall be complete and full buckle, and no loosening shall be allowed. If the fastening nut on the handwheel is loose, it should be tightened in time so as not to wear the joint or lose the handwheel. After the handwheel is lost, the handwheel is not allowed to replace the handwheel. The packing pressure difference does not allow for skew or pre tight clearance. It is easy to be contaminated by rain, snow and dirt, and the valve stem must be installed with a protective cover. The gauge on the valve should be intact and accurate. The sealing, sealing and pneumatic accessories of the valve should be in good condition. There should be no sag and crack in the insulation jacket.
In addition, valves are not allowed to beat, support heavy objects or stop people, so as not to stain the valves and damage the valves. In particular, non-metal mesh doors and cast iron valves should be prohibited.
Maintain the daily maintenance of the electric device. The maintenance of electric devices is usually less than once a month. The contents of maintenance are: the appearance should be clean, no dust accumulation, and the device is free from sodas and grease stains. The sealing surface and points should be firm and tight. No leakage; the lubricating parts should be refueling according to the regulations. The valve nut should be lubricated with the grease; the electrical part should be in good condition, no phase fault, automatic switch and thermal relay should not be taken off, indicating that the lamp is correct.
1.Keep the valve external and active parts clean, and protect the integrity of valve paint. The surface of the valve, the stem and the stem nut on the trapezoidal thread, the stem nut and the sliding part of the bracket, and the gear, worm and worm and other parts easily deposit a lot of dirt, oil pollution and medium residue and other dirt, and produce wear and corrosion to the valve. Therefore, clean valves should be kept regularly. The general dust on the valve is suitable for brush sweep and compressed air blowing, or even can be washed with copper wire brush until the surface of the machining surface and the face show the metallic luster, and the paint surface shows the original color of the paint. The steam trap should be responsible for each class at least once at least once; regularly open the flushing valve and steam drain valve bottom to flush, or disassemble it regularly to avoid dirty objects blocking the valve.
2. The lubrication of the valve, the trapezoid thread of the valve, the sliding part of the stem nut and the support of the stem, the meshing part of the bearing position, the gear and the worm wheel and the other parts of the worm wheel need good lubrication, reducing the friction between each other and avoiding the mutual wear. For those parts that are not easily damaged or lost during operation, the lubrication system should be repaired and the dredging of the oil passage should be restored.
The lubricating parts should be refueling regularly according to the specific conditions. Frequently opened, high temperature valves are suitable to be refueling once a week to a month; the valve cycle which can not be opened frequently and the temperature is not high can be longer. Lubricants include oil, butter, molybdenum disulfide and graphite. Oil is not suitable for high temperature valves; butter is not very suitable. They will be lost due to high temperature melting. High temperature valves are suitable for adding molybdenum disulfide and rubbing graphite powder. The lubricating parts, such as trapezoid thread and teeth, are easily tainted with grease such as butter, such as trapezoid thread and tooth, and the use of molybdenum disulfide and graphite powder is not easy to be stained with dust and the effect of lubrication is better than butter. The graphite powder is not easy to apply directly. It can be used with a little oil or water to synthesize the paste.
The oil filled sealed stopcock should be oiling according to the prescribed time, otherwise it will wear and leak easily.
3. keep two pieces complete and complete. Bolts for flanges and supports shall be complete and full buckle, and no loosening shall be allowed. If the fastening nut on the handwheel is loose, it should be tightened in time so as not to wear the joint or lose the handwheel. After the handwheel is lost, the handwheel is not allowed to replace the handwheel. The packing pressure difference does not allow for skew or pre tight clearance. It is easy to be contaminated by rain, snow and dirt, and the valve stem must be installed with a protective cover. The gauge on the valve should be intact and accurate. The sealing, sealing and pneumatic accessories of the valve should be in good condition. There should be no sag and crack in the insulation jacket.
In addition, valves are not allowed to beat, support heavy objects or stop people, so as not to stain the valves and damage the valves. In particular, non-metal mesh doors and cast iron valves should be prohibited.
Maintain the daily maintenance of the electric device. The maintenance of electric devices is usually less than once a month. The contents of maintenance are: the appearance should be clean, no dust accumulation, and the device is free from sodas and grease stains. The sealing surface and points should be firm and tight. No leakage; the lubricating parts should be refueling according to the regulations. The valve nut should be lubricated with the grease; the electrical part should be in good condition, no phase fault, automatic switch and thermal relay should not be taken off, indicating that the lamp is correct.
