Fire breather valve is mainly used in oil filling or liquid tank, we know that the closed type of storage tanks, if within the transmission medium, the pressure in the tank will be increased, if not the gas discharge within the tank in time appear safety accident is easy to cause the pressure was too high, instead on the same principle also is very dangerous, when the tank to the medium at the same time, the pressure inside the tank will reduce, until the negative pressure, under the condition of negative pressure, if unable to import gas from outside of tank, also can appear high negative pressure condition, disintegration of tanks or safety accidents occurred, at that time we need to use one or more breathing valve, suction and exhaust ( Exhale) 。 A, cannot blow (normally Exhaust) Answer: fire breathing valve such as exhale appear unable to vent out, need to open air Industrial Valves cover, first check to see if the positive pressure Industrial Valves tray gets stuck, or foreign bodies blocked, should clean up immediately. Then observe the built-in spring is rust or serious aging, aging of the spring is not work properly, should be replaced in a timely manner. Second, unable to breathe in normal answer: fire breathing valve, such as appear unable to breathe in and to the vats under the condition of intake air, also open air Industrial Valves cover, first check to see if the suction valve tray card, or by foreign bodies blocked, should clean up immediately. Then observe the built-in spring is rust or serious aging, aging of the spring is not work properly, should be replaced in a timely manner.
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flow control valve are less complex compared with resilient seal gate valve.