Diaphragm pressure gauge is suitable for measuring the pressure of the medium with strong corrosion, high temperature, high viscosity, easy to crystallize, easy to solidify, and solid floating matter. It is necessary to prevent the measuring medium from directly entering the general pressure instrument and prevent the accumulation of sediment and easy to clean.

A system diaphragm meter is composed of a diaphragm isolator and a general pressure instrument.

The connection between the diaphragm pressure gauge and the equipment mainly includes threaded connection, flange connection, and sanitary diaphragm pressure gauge clamp type.

Diaphragm meters are mainly used to measure the pressure of fluid media in the production process of petrochemical, alkali-making, chemical fiber, dyeing, pharmacy, food and alkali-making industries.　　

Structure principle of diaphragm pressure gauge

When the pressure P of the measuring medium acts on the diaphragm, the diaphragm deforms and compresses the sealing liquid of the pressure measuring system of the pressure gauge to form a P-△P diaphragm pressure gauge pressure. When the rigidity of the diaphragm is small enough, △P is also very small, and the pressure formed by the pressure measuring system of the pressure instrument is close to the pressure of the measuring medium.