Product description: Diaphragm pressure gauge with indirect measuring structure, suitable for measuring the viscosity of large, easy crystallization, corrosive, high temperature in the liquid, gas granular solid medium pressure. Isolation diaphragms are available in a variety of materials to accommodate a variety of corrosive media.

Diaphragm pressure gauge is suitable for chemical industry, chemical fiber, synthetic fiber, petroleum, dyeing, alkali and other industries.

Specification parameter

Accuracy: ± 1.6%, + plusmn; 2.5%

Diaphragm material: Ocr18Ni12MO2(316), Hastelloy C (H276C), Monel alloy (Cu30NI70), tantalum alloy (Ta), fluorine plastic (F4).

Materials: butadiene rubber, fluorine plastic.

Implementation standard: JB/T8624-97

Structure principle: The diaphragm deforms under the pressure of the measured medium, and the sealing liquid is pressed to form a pressure equivalent to P, which is transmitted to the pressure instrument to display the pressure value of the measured medium.

Influence of temperature:

Because of the thermal expansion of sealing liquid and diaphragm stiffness and temperature, in the use of temperature deviation from 20 ± At 5 ℃, there is an error affected by temperature, and its value is 0.1%/ ℃.

Liquid level difference:

The diaphragm pressure gauge connected by the hose is installed when the pressure part and the pressure instrument at different positions, the level difference will form a pressure difference △ P, △ P= sealing liquid specific level difference.

Corrosion resistance:

The corrosion resistance of the diaphragm pressure gauge includes the corrosion of the environment and the measuring medium, and the material of the separator, diaphragm and sealing gasket can be selected according to the conditions of use.