Ravika engineers offers pressure gauge testers. It is used for calibrating pressure gauges and other pressure sensing, transmitting and recording instruments up to 750 kg/cm2. These deadweight pressure gauge testers make use of the relationship between pressure acting on the known area of a vertically free floating piston producing a force balanced by known weights. It has a built-in screw pump to generate pressure equally and accurately. High pressure pumps have a priming pump also. Its free piston assembly of special steel, hardened, tempered, stress relieved [artificially aged], ground and superfinished to accurate size and very fine surface finish, provides true floating action.
