What is a diaphragm pressure gauge?

Basically a diaphragm pressure gauge, the concentrically corrugated diaphragm would be fixed between two flanges. The diaphragm will be loaded by the process pressure on one side and will flexibly deviate from its normal position. This path is proportional to the pressure applied and will be transmitted in a rotary geared movement. The movement has a pointer and shows pressure on the dial with a 270 angle. Diaphragm pressure gauges are used to measure the pressure of gases, vapors and liquids from 40 bar and vacuum to -1 bar. The accuracy is ± 1,6% of full scale deflection. Tantalum, Hastelloy C etc. Or the diaphragm can be protected from aggressive media by using a PTFE-coated foil. The connecting part can be made or protected with suitable materials, ie SS 316L, PP, PVC, PVDF etc. Diaphragm pressure gauges with open measuring flanges are perfectly suited for media containing highly viscous, crystalline and solid substances. Diaphragm pressure gauges can easily be supplied with an overload safety.