Resilient seat gate valve

F - Mech Eng,Light,Heat,Weapons – 16 – K

Patent

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Details

F16K 3/28 (2006.01) F16K 3/02 (2006.01) F16K 3/12 (2006.01) F16K 3/316 (2006.01)

Patent

CA 2458825

A valve arrangement (10) includes a valve housing (12) that defines a product passageway (16) and a valve seat within the product passageway (16). A valve wedge (30) is disposed within the housing passageway, and moves along a direction of operation between a closed position and an open position. A pair of opposed wings (46, 48) are carried on the valve wedge (30), adjacent a guide track (56, 58). Rollers (62) are carried on the wings (46, 48) for rolling engagement with the tracks (56, 58) and scraper blades (70, 79) are carried on the wings (46, 48) adjacent the rollers (62) to scrape contamination from tracks (56, 58).

L'invention concerne un dispositif à clapet (10) qui comporte un boîtier (12) à clapet qui définit un passage (16) de produits et un siège à clapet à l'intérieur du passage (16) de produit. Un coin (30) à clapet est placé à l'intérieur du passage du boîtier et se déplace dans un sens de fonctionnement entre une position fermée et une position ouverte. Deux ailerons (46, 48) opposés sont portés sur le coin (30) à clapet jouxtant un rail de guidage (56, 58). Des roulements (62) sont portés sur les ailerons (46, 48) pour rouler en prise avec les rails (56, 58) et les plaques racleuses (70, 79) sont portées sur les ailerons (46, 48) jouxtant les roulements (62) de façon à racler la contamination des rails (56, 58).

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