Automatic leakage monitoring switch - has standard comparison leak, and piston to close duct with user stationary

摘要

Automatic switch monitors sealing of ducts for gases and liquids during the stationary time of user(s). A defined, preset degree of leakage acts as comparison magnitude. A switching action is released when the failure of sealing in the duct or apparatus connected between, exceeds this standard. Pref., after switching off the user(s), the duct is closed by a piston so that only the defined leakage passes through. The lack of sealing of the piston adds to the quantity through the leakage nozzle, which can be adjusted or interchanged to maintain the defined leakage.