Synthetic Rubber Sheet Ring with Fistulous Section for Gate Valve

Abstract

This is the report of the authors' recent experimental research on rubber sheet ring of fistulous section and the construction and the necessitated operating power of the gate valve completed with the rubber sheet ring. Generelly speaking, rubber as rubber sheet ring is considered one of the most suitable materials for those valves dealing with liquid mixed with hard foreign substance such as grit and clay as in the case of dredge piping, in view of anti-abrasion as well as watertightness of sheet ring and disc combined. In an attempt to develop more suitable rubber sheet ring for those sevice gate valve providing more better durability and lessening effect of valve operating power, the authors have carried out preliminary experiment on the shape and physical properties of the rubber sheet ring. The following are detail of them.