One-way valve for use with vacuum pump

摘要: A valve assembly mounted in a resealable/reclosable storage bag. The includes base and element. element stem with convex cap attached at one end gate the opposite end. extends into hole base. resilient quality of cap, acting against top base, holds bottom thereby forming seal between that is strong enough to preserve vacuum inside cavity from runs outside stem. When pressed down, source may draw air through stem, cavity, subsequently