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Air ventRespiratory system (more)
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Air venta valve opening in the top of the highest drum of a boiler or pressure vessel for venting air. Alkalinity - represents the amount of carbonates, bicarbonates, hydroxides and silicates or phosphates in the water and is reported as grains per gallon, or ppm as calcium carbonate.
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Air ventA device used to eliminate air in SWH system piping. It can have automatic or manual operation.
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Air ventA fitting used to vent air manually or automatically from a system.
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Air ventValve, either manual or automatic, to remove air from the highest point of a coil or piping assembly.
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Air ventValve, either manual or automatic, to remove air from the highest point of a coil or piping assembly.
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