The use of the manual operation of pneumatic valve specifications

manual air regulation pneumatic valve is one of the automation system of actuators, pneumatic diaphragm actuator or by a more spring floating and regulating pneumatic valve piston executing agency, receive signals adjusting instruments, fluid control technology of the pipe on the cut, or switch. Manual operation of pneumatic valve has simple structure, sensitive reaction, reliable operation, etc. Can be widely used in petroleum, chemical, metallurgical and other industrial production. Pneumatic valve pneumatic manual air regulation of air required by filtering compressed air, through the medium of pneumatic valve body is supposed to be free of impurities and particles of liquid and gas. According to allow the pressure differential, medium characteristics and process piping requirements, can choose single seat, sleeve, tee manual air regulation pneumatic valve.
manual air regulation pneumatic valve is mainly used in the following situations:
pneumatic valve, manual operation and combustible gas leakage monitoring instrument connection, when testing instruments to combustible gas leakage, automatically shut down the main gas supply pneumatic valves, cut off the gas supply, in a timely manner to prevent malignant accidents.
pneumatic valve, manual operation and the limit of thermal equipment, temperature and pressure safety controller connection when the temperature of the equipment within the testing point pressure exceeds the limit of the set value, pneumatic valve automatically shut down the gas supply, to stop the supply of fuel.
pneumatic valve, manual operation and the high-rise building fire alarm system in the middle of the connection, when building fire, cut off the gas inside the building, to prevent the occurrence of gas explosion.
pneumatic valve, manual operation or factories in the city gas supply network set up ZCR pneumatic valve, gas emergency manual operation can be centralized control in central control room and remote emergency shut off the scene of the accident of pipeline gas supply.
oxygen manual air regulation pneumatic valve is widely used in all kinds of chemical, petrochemical, steel, metallurgy, air separation industry, conditions of inflammable, explosive dangerous environment, any leakage or leakage is likely to cause intense combustion, explosion and other serious consequences, long-term dependence on imports for many years, expensive equipment investment and delayed delivery and service, prompting the manual operation of home-made pneumatic valve work is imminent.
the purpose of the maintenance, is to extend the life of the manual operation of pneumatic valve and ensure reliable opening and closing. Pneumatic valve stem thread, often with pneumatic friction stem nut, to apply p redictors oil, molybdenum disulfide or graphite powder, lubrication. Don't often open/close the pneumatic valve, also want to turn the handwheel, regularly opponent pneumatic air flow adjusting valve pneumatic valve stem thread add lubricant, in case of biting. Outdoor pneumatic valve, manual operation to the pneumatic valve stem and cases, in case of rain, snow, dust tarnishing. Such as manual air regulation pneumatic valves machines to move, to add lubricating oil for gearbox on time.
more and more close with the economic globalization, the international market rivals pneumatic air regulation valve demand is becoming more and more big. As the demand for products, product innovation to promote the manual operation of pneumatic valve industry, the phenomenon of the 'hundred schools of thought contend', and in the present market economy, with innovative products will be at an advantage in the competition. But, metallurgy and other related businesses closed several also greatly affected the manual operation of pneumatic valve industry development.