Water and gas valve linkage - "water to gas to the water stop, gas stop"

hits:update:2015-06-01 14:06:08【Print】【Close】

    Everyone in the bathing process, will encounter suddenly without water situation, this time, if you are using a gas water heater, it must immediately shut down by an automatic switch to gas, otherwise it will air burning, damage to the water heater in the heat exchanger. Water and gas linkage is to solve this problem "key." Water and gas linkage (also known as the water-gas linkage valve) control means including water and gas control equipment, gas control device by the valve components, control the opening and closing of gas water heaters and gas flow rate, also known as the fire control valve. Water heater control device is to control water flow device, also known as the water temperature regulator.
    Water and gas works linkage is the use of water supply off gas flow pressure difference means work. In the gas water heater inlet pipe has a small room, which has a film, about film were connected have resistance to water regulating valves at both ends, if the water heater is water, water pressure difference formed graphite sheet moves to the left, with the stem The gas valve is opened. If the heater without water, the diaphragm moves to the right in the action of the spring, the valve closes. If it is not without water but the valve is closed, there is no pressure difference also will close gas fire, it would burn the heat exchanger. When then hot water, once opened the valve, the difference would appear the next time the water pressure gas valve open.
    It is worth noting that both sides of the diaphragm chamber is connected with a conical tubes, tapered tube has a small ball, called "slow burner", the purpose is to allow the water heater to ignite the process to proceed more slowly and fire fast. When the valve opens, the pressure difference occurs, the film moves to the left, then the film is left of the water is squeezed from the small pipe flow above the outlet, the water pressure to the lower end of the small ball conical tube, the tube end plug, difficult to flow, can only slow leak, so the left diaphragm moving too slowly. But when off the valve, differential pressure disappears, the right move under the action of the spring diaphragm, above the tapered tube where the water would turn the clock back, rushed up the ball up, the tube resistance decreases, the flow becomes faster, so the film pieces to the right action quickly, so the gas off quickly.  
    The role of water vapor linkage simply means "water to gas that the water stops, gas stop," it appears to solve the problem of air burning without water after the water heater, so that consumers Needless to worry about gas leaks and water heaters damaged The problem, let the family enjoy technology brings comfort and convenience.
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