An inverted bucket steam trap having a two lever (30, 34) linkage mechanism between the bucket (18) and the valve member (28) which engages a valve seat (26) through which condensate is discharged. The first lever is connected to the bucket and the second lever carries the valve member. The linkage mechanism is arranged such that the second lever initially undergoes pivotal movement to disengage the valve member from the valve seat and then translatory movement to the fully open position of the valve.
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