Integrated protection valve makes it possible for small time overpressure for 20 occasions full scale value for positive pressure ranges. (not for vacuum and compound pressure ranges) We use cookies on our Web-site to give you the most relevant knowledge by remembering your Choices and repeat visits. By clicking “Accept”, https://arthurzrgwj.blogminds.com/the-fact-about-diaphragm-pressure-gauge-that-no-one-is-suggesting-30395105