Patent ID: 6817593
Filing Date: 2004-11-16
Classification: F16K

Abstract:
A slidable gate valve for powder and granular material, comprising:a frame body with an opening; an actuator attached to said frame body; a holder case connected to said frame body; a gate plate that is slid by said actuator in a direction perpendicular to a moving path of the powder and granular material, so as to open and close the opening; a sealing member that comprises a packing pressed into a seal housing attached to a through hole formed in a specific area of said frame body on a side of said holder case and seals said gate plate from said frame body, so as to prevent leakage of the powder and granular material out of the moving path; and a support member that supports said gate plate, wherein said actuator is an air cylinder, and exhaust of said air cylinder is induced into said seal housing.