Importance

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Abstract

There is provided, in a thermostatic steam trap that can operate in either of two modes merely dependent upon which way round the trap is connected in a steam flow line, a temperature-responsive element (9) in which there is a valve member (23) that projects from a housing (16) of the element (10) to an extent dependent upon movement of a diaphragm (19) within the housing (16). Movement of the valve member (23) out of the housing (16) to close on a seat (6) is opposed by a spring clip (8), arms (14) of which embrace the outside of the housing (16), so that if the diaphragm (19) fails the trap as a whole fails with the valve (23/6) open. Conveniently the spring clip (8) serves a further function in that lugs (15) of the clip locate on a wall of the valve seat (6) to locate the element (9) in the trap.

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First Claim