Excess flow valve for pipelines

摘要

A support element (2) possessing a valve seating (4) in relation to which is a movable blocking body (3) in the form of a flat circular disc.. A guide element (5) guides the blocking body and is in the form of a pin on the support element. The blocking body is movable in relation to the guide element and has at least one seal (11), at least one opening and pre-tensioned spring (7).