The function of natural gas special solenoid valve, the control method of natural gas special solenoid valve

The role of the special solenoid valve for natural gas. The special solenoid valve for natural gas is suitable for two-position on-off switching of combustion medium pipelines such as gas, for automatic or remote temperature control. It is specially developed according to the characteristics of burning appliances. As supporting equipment for burning appliances, it can achieve energy saving. Efficacy, special coil. It is waterproof and explosion-proof, with a rated voltage of DC12~127V or AC36~380V. Other voltages can be customized. Its performance is stable and its reliability is high. Special solenoid valves for natural gas are used in gas pipeline networks, city gas, liquefied petroleum gas, gas filling stations, engines, diesel engines, welding and cutting, solar equipment, hotel equipment, cleaning equipment, machinery manufacturing industries, and are mainly used in major gas companies and gas companies Automatic control system. Natural gas special solenoid valve control mode The control mode of the solenoid valve (normally closed, normally open, self-maintaining) is selected according to the length of working time or special working conditions. When the solenoid valve needs to be opened for a long time, and the continuous opening time greatly exceeds the closing time, the normally open type should be selected. If the on and off switch is frequent or the on time is short or the on and off times are about the same, the normally closed type is selected. For safety protection working conditions, such as kiln flame monitoring, gas leakage alarms, and fire safety systems, emergency cut-off solenoid valves or a new technology that can be powered on for a long time, shut down upon loss of power, and manually reset should be selected. Self-retaining solenoid valve (also called bistable) is a new technology, which is mainly used in places that need to save energy or be driven by ultra-high temperature and low voltage. Natural gas special solenoid valve connection method The diameter specification and connection method of the solenoid valve can be selected according to the pipeline parameters. Determine the diameter (DN) size according to the on-site pipe size or flow requirements. Interface mode, generally flange interface is selected for DN>65, and threaded or flange interface can be freely selected according to user needs for DN≤65. Instructions for installing natural gas special solenoid valve 1. When installing, the solenoid valve coil is upward and kept in a horizontal position. The arrow or mark on the solenoid valve should be consistent with the flow direction of the pipeline. 2. Before installing the solenoid valve, the pipeline must be cleaned. It is recommended to install a filter before the valve. 3. The working medium of the solenoid valve should be clean and free of particle impurities. Dirt and filters on the surface of the solenoid valve's internal parts need to be cleaned regularly. 4. Before installing the solenoid valve, pay attention to the product label and read the instruction manual carefully to determine whether the product meets the conditions of use. 5. When the solenoid valve fails, in order to isolate the solenoid valve in time and ensure the normal operation of the system, it is best to install a bypass device (Figure 1). Special solenoid valve bypass device for natural gas (Figure 1) Special solenoid valve bypass device for natural gas (Figure 2) 1. Solenoid valve 2, manual valve 3, filter 6. In the pipeline system, the solenoid valve installed on the branch road The diameter should be smaller than the diameter of the main pipeline valve (Figure 2). 7. The ordinary type cannot be used in special dangerous situations. For special environments, please choose a solenoid valve with a corresponding explosion-proof level. 8. Pressure gauges need to be installed on the pipelines before and after the solenoid valve to observe the pipeline pressure. 9. When the pipeline rigidity is insufficient, it is recommended to fix the pipeline in front of the valve with a bracket to avoid vibration caused by the solenoid valve during operation. The above is the function of the natural gas special solenoid valve, and the content of the natural gas special solenoid valve control method is introduced. If you want to know more relevant information, please log in to Sunway Pneumatic www.diancifa.cc to view.