Gate valve for controlling the flow of viscous liquids

摘要

A pivoting gate valve assembly includes a seat plate with an orifice therethrough, a stop plate and a gate. The stop plate is mounted on the seat plate and borders a portion of the orifice. The gate is pivotably mounted to the seat plate and pivots to a closed position against the stop plate and covering the orifice. The gate and the stop plate form a substantially flush contiguous surface when in the closed position.