Position detector for clapper of non-return valve

Details Position detector for clapper of non-return valve Position detector for clapper of non-return valve

F - Mech Eng,Light,Heat,Weapons

01

D

137/61, 116/77

F01D 21/00 (2006.01) F01D 17/10 (2006.01) F01K 7/38 (2006.01) F16K 15/03 (2006.01) F16K 37/00 (2006.01)

Patent

CA 1297378

- 13 - 53,884 ABSTRACT OF THE DISCLOSURE A non-return valve for a steam turbine steam line includes a housing and a clapper swingably mounted in the housing for angular movement between open and closed positions. A metal proximity detector is mounted on the interior surface of the cover for the valve access opening and adjacent the open position of the valve. Movement of the clapper away from its open position results in a signal providing an indication that the valve clapper is away from its open position.

583047

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