High pressure steam trap
AssigneeGestra-KSB Vertriebsgesellschaft mbH & Co. KG
InventorWerner Foller
Life of this patent
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Abstract
A high pressure steam trap is provided of the type which has at least two serially-connected and operated discharge control assemblies which are switched in series in the flow direction of the condensate, each of which includes a thermal control element which is exposed to the condensate to be discharged, a valve seat, and a throttle element which is actuated by the thermal control element for movement relative to the valve seat. Expansion capsules serve as the thermal control elements and these capsules contain an evaporation liquid, the steam pressure of which, measured at the same temperature, is higher than the steam pressure of the evaporation liquid in the successively-disposed expansion capsules downstream therefrom.
Claims2
In a high pressure steam trap of the type which has at least two serially-connected and operated discharge control assemblies, each of which includes a thermal control element which is exposed to the condensate to be discharged, a valve seat, and a throttle element which is actuated by said thermal control element for movement relative to the valve seat, the improvement comprising:
- said thermal control elements each comprising an expansion capsule which contains an evaporation liquid, the vapor pressure of the one expansion capsule is higher than the vapor pressure of the evaporation liquid in the successively-disposed expansion capsule downstream therefrom, measured at the same temperature as the one expansion capsule.
Dependencies are inferred from the claim text.