Decontamination valve for a jet pipe in a paper or board...

Details Decontamination valve for a jet pipe in a paper or board... Decontamination valve for a jet pipe in a paper or board...

F - Mech Eng,Light,Heat,Weapons

16

K

F16K 1/02 (2006.01) D21F 1/34 (2006.01) F16K 1/32 (2006.01)

Patent

CA 2102489

The invention relates to a decontamination valve for a jet pipe in a paper or board machine, including a disc valve having a closed position and an open position. The disc valve is in the closed position when the jet pipe is in operation and is in the open position when the jet pipe is being cleaned in order to remove cleaning/washing water used in the cleaning process. The disc valve is arranged to close in the same direction in which pressure effective in the jet pipe attempts to shift the valve.

La présente invention a pour objet un appareil de robinetterie pour la décontamination d'une tuyère d'admission dans une machine à papier ou à carton; celui-ci comporte un obturateur à disque à deux positions : ouverte ou fermée. L'obturateur à disque est en position fermée lorsque la tuyère d'admission est en fonctionnement, et en position ouverte pour permettre l'évacuation de l'eau de décontamination utilisée durant l'opération de nettoyage de la tuyère. L'obturateur à disque est monté de façon à se refermer dans le sens où s'exerce la pression à l'intérieur de la tuyère.

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