Gas flow detectors

Details Gas flow detectors Gas flow detectors

G - Physics

08

B

340/144

G08B 21/00 (2006.01) G01F 1/20 (2006.01)

Patent

CA 1167944

ABSTRACT GAS FLOW DETECTORS A flow detector, for use adjacent a steam trap to detect an unacceptable level of leakage of steam through the trap, comprises a tubular housing 10 substitutable for a standard pipe nipple. The housing comprises a boss 16 which provides a condensate collecting trap 24 in which an electrode 26 is exposed. Immediately opposite the trap 24, on the opposite side of a flow passage 28 provided by the housing 10, is a baffle in the form of a ramp 30 arranged to divert steam towards the trap 24. In normal conditions of use, the presence of condensate in the trap is signalled by an electric current passing between the electrode 26 and the housing 10. Should an excessive steam flow occur in the passage 28, steam diverted by the ramp 30 displaces the condensate from the trap 24 around the electrode 26 and stops the flow of current. A similar detector could be of use in a compressed air line.

393767

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