Apparatus for checking for steam leakage in a steam trap of the kind having a casing with an inlet for steam and condensate and an outlet for condensate, a condensate outlet valve, and actuating means for actuating the valve in the steam trap casing.BALANCING VALVES A probe extends into the steam trap casing in noninterfering relation with the actuating means and responds to the level of condensate in the steam trap casing for changing an electrical condition. Water Pump Control ValvesA monitor responds to the electrical condition for indicating the condition of the steam trap. In combination, a steam trap and apparatus for checking same for steam leakage, Cast Gate, Globe, Check Valvescomprising: a steam trap casing having an inlet for steam and condensate and an outlet for condensate; a steam trap means in said casing operative independent of said probe and by itself responsive to accumulation of a preselected amount of condensate in said casing for releasing condensate to said outlet while trapping steam in said casing, said steam trap means constituting the entirety of a normally operational steam trap mechanism including a condensate outlet valve normally closing said outlet and actuating means for actuating said valve to release condensate therethrough to said outlet;
a probe extending into said steam trap casing and responsive to condensate build up to an excessive level in said steam trap casing for changing an electrical condition; means responsive to said electrical condition change for indicating said steam trap means has a fault condition, said steam trap comprising an inverted bucket steam trap, said actuating means comprising a downward opening inverted bucket vertically movable in said casing, a passage from said inlet which opens under said inverted bucket to supply steam and condensate, means connecting said condensate outlet valve to said inverted bucket for opening and closing said valve in response to low and high positioning of said inverted bucket in said steam trap casing, said probe having a condensate level sensing part extending up in noninterfering relation into the open bottom of said inverted bucket and responsive to the condensate level within said inverted bucket.

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