| 摘要 |
A gate valve for pulp stock slurries and the like has a smooth flow passage for two way flow and has no grooves or cavities where pulp stock fibres or other particles collect. The valve comprises a rigid valve body having a flow passage with smooth curved walls therethrough, the body having a gate blade slot in the approximate center of the flow passage, a flexible resilient seat flush with the smooth curved walls, the seat being in the form of a strip extending through one end of the gate blade slot, around the flow passage and through the other end of the gate blade slot, the strip held in place by a body port insert ring attached and sealed to the valve body, and a gate blade with a semi-circular end, the gate blade adapted to fit in the gate blade slot to seal against the resilient seat. |
