Positive response sealed diaphragm anti-siphon valve

摘要: An anti-siphon valve providing positive initiation and cessation of liquid flow there through during transfer operations. The includes an inlet port for receiving outlet delivering liquid. A vent leads to the port, while air controller situated within prohibits permits into non-flow, thereby producing a vacuum break upon non-flow. preferably is which pressure sensitive close otherwise-open in response from flowing port.