Abstract: A mechanism is adapted to clean a filter of a steam trap by opening a valve at one end of the filter by turning an adjusting screw secured to one end of the valve without shutting down a boiler in which a flow path is formed from one end of the filter to a drain via the valve and the adjusting screw after the valve opening. A stop projects into the valve for preventing the adjusting screw from disengaging the valve by stopping an annular flange of a valve cone in the valve opening operation.

Abstract: A steam trap is provided to remove condensed water from a steam pipe having an end to which the strap is connected. In one embodiment, the trap includes a hollow body having an inlet adapted to secure to the pipe end and an outlet, the body comprising a staged internal space; a blocking member secured in the space and comprising a central projection on either surface and a plurality of apertures around the projections; and an abutment member in the rear of the blocking member. Condensate is adapted to pass the apertures while the steam is substantially blocked by the apertures due to capillary action.