is the control unit in fluid conveying system, with a cut-off, regulation, guide, to prevent the reverse flow, voltage regulator, the leakage of the shunt or overflow, and other functions. Used for fluid flow control system of the valve, from the most simple cut-off valve to extremely complex automatic control system used in all kinds of valves, its quite a wide varieties and specifications. The valve can be used to control air, water, steam, all kinds of corrosive medium, mud, oil, liquid metal and radioactive medium, etc. All types of fluid flow. So, in the process of long-term use of the valve should be how to maintain? 1. Banning the use of the valve is closed or open an account the lever or long wheel spanner wrench. 2. Stem thread and stem nut friction, often should keep a certain amount of oil in the screw place, lubrication, guaranteeing the free activity, the valve stem so flexible. is a mechanical transmission, to timely for gearbox additives, in case of biting. 3. Open the valve for a long time, seal surface may with dirt; Is closed, you can gently close the valve, and open a little, so can use high-speed flow medium will be washed away dirt, and then shut. 4. installed in the outdoor, protective sleeve is set on the valve stem to protect, prevent the rain, snow, dust tarnishing. 5. Should often to cleaning, check valve, in order to maintain the cleanness of the valve parts and complete. Do not place heavy objects on a valve, more should not stand on the valve. 6. Open the steam valve before, must first rule out the system of coagulate water, then slowly open Industrial Valves, lest produce soda impact; When the valve is fully open, the handwheel should be back a little. 7. Backup valve shall be put in a dry indoor place, with wax paper board or plug seal interface, lest dirt to enter. assembly for clean parts must be kept sealed, for installation. Requirements for the installation process is as follows: 1, the installation must ensure that the workshop clean, or clean up temporary area, for example with the new purchase of striped cloth or plastic film, etc. , to prevent dust during the installation process has entered. 2, the assembly workers must be dressed in a clean, pure cotton overalls, head Dai Chun cotton padded cap, hair can't leakage, foot wear clean shoes, hand wear plastic gloves, degreasing,. 3, erection tools must be clean before assembly to skim, ensure clean.
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