( A) The custody

the purpose of custody, is to keep the valve in the custody of the damage, or lower quality. In fact, improper safekeeping is one of the important reasons for the damage. , should be in good order, small valve on top of the shelf, large valves can be lined up on the ground in the warehouse, not heap crib, don't let the flange junction surface contact with the ground. This in order to not only beautiful, mainly is to protect the valve is not damaged. The hand wheel broken because of improper storage and handling, the valve stem touch tilt, the handwheel and fixed stem nut loose loss, and so on, these unnecessary losses, should be avoided. To not use the valve in the short term, we should remove the asbestos packing, lest produce electrochemical corrosion, damage to the valve stem. Just into the library for the valve to check, such as in the process of transportation into the rain water or dirt, try to wipe clean, then to the store. Import and export with wax paper or plastic seal, valve into the dirt in case. To be rusty in the atmosphere valve machining surface to tu rust-proof oil, to protect it. Placed outside the valve, must cover the linoleum or tarpaulin items such as rain, dust. The warehouse where the Industrial Valves to keep clean and dry.

( 2) Use maintenance

the purpose of the maintenance, is to extend the service life of the valve and assure reliable opening and closing. Stem thread, often with stem nut friction, to apply p redictors oil, molybdenum disulfide or graphite powder, lubrication. Don't often open/close the valve, but also to turn the handwheel, regularly add lubricant to the valve stem threads, in case of biting. Outdoor valves, to be on the valve stem and cases, in case of rain, snow, dust tarnishing. Such as mechanical valve system to move, to add lubricating oil for transmission on time.

( 3) Operate the valve maintenance

1, cleaning

the surface of the valve, the valve stem and valve stem nut on the trapezoidal thread, stem nut and support sliding parts and components such as gear, worm gear and worm can product many dirt, oil and residue medium stolen goods, the valve will generate wear and corrosion. So often maintain the cleanness of external activity and valve parts, paint the complete protection valve, is obviously very important. The dirt on the valve applies to sweep brush brush and compressed air purge; Trapezoidal thread and teeth of stolen goods is suitable for cloth; Valves on the oil and residue is suitable for steam purge, brass wire scrub, even until the processing surface, mating surface show metallic luster, paint paint color so far. Trap should be someone who's in charge of, check at least once per shift, regular open the flush valve and plug at the bottom of the trap to wash, or remove the wash regularly, so as to avoid spoils plug valve.

2, valve lubrication

ladder shaped thread, valve stem nut and stent sliding parts, bearing parts, gears and worm gear and worm gearing parts and other activities, all need good lubrication condition, reduce the friction between each other, each other to avoid wear and tear. If some parts there are oil cup or nozzle, damage or loss in the operation, should repair equipment, oil to dredge. Lubrication parts should be lubricated periodically according to the specific situation. Often open, high temperature valve suitable for interval once a weeks to a month come on; Often do not open the valve, the temperature is not high, refueling cycle can be longer. Lubricants such as oil, butter, mos2 and graphite. Not suitable for high temperature valve with oil, butter, they will loss due to high temperature melting, and is suitable for injection of molybdenum disulfide and wiping graphite powder. The parts of the need for bare lubrication, such as the trapezoidal thread, gear and other parts, if use the oil fat such as butter, infected with dirt easily, and lubrication mos2 and graphite powder, is infected with dirt is not easy, the lubrication effect is better than yellow. Graphite powder is not easy to apply directly, can use a few used synthetic oil or water cream shape. Oil seal cock valve oil should be in accordance with the stipulated time, otherwise easy to wear and leakage.

This is an global standard which acts as a form of promise that Shenzhen Mech Valve Trading Co., Ltd. manufatures according to the finest quality standards.
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