Electrical contact diaphragm stainless steel pressure gauges manufacturers

In order to make the electric contact pressure gauge can be adapted to measure the media pressure of strong corrosion, high temperature, high viscosity, easy to crystallize, easy to coagulate, with solid floats and to avoid the direct access of the measuring medium to the universal pressure gauge and to prevent sediment accumulation and easy to clean Of the occasion, should be used to form a system of isolator electrical contact pressure gauge diaphragm pressure gauge. It is suitable for the measurement of gas, liquid with no explosion danger, strong corrosion, high temperature, high viscosity, easy to crystallize, easy to solidify and floating with solid. It is required to realize automatic control and signaling (alarm) to the pressure system under test. Membrane electrical contact pressure gauge set upper and lower limit two switch contact device when the pressure reaches the set value signal or on-off control circuit for the operating system to automatically control or send messages. Its diaphragm structure can effectively isolate the pressure medium with strong corrosion, high temperature, high viscosity, easy to crystallize, easy to solidify and floating with solid substance, so as to ensure that the electric contact meter can effectively measure the working pressure of the system or machinery. Diaphragm electrical contact pressure gauge electrical contact pressure gauge features widely used in mechanical, chemical, petroleum metallurgy, power, alkali, water treatment and other industrial processes or mechanical and electrical matching in the measurement of the risk of explosion of various fluid pressure medium. Normally, the meter can be used for automatic control and signaling (alarm) of the pressure system under test (control) by supporting the corresponding electrical devices (such as relays and contactors).

Accuracy: ± 1.6%, ± 2.5%

Diaphragm Materials: OCr18Ni12Mo2 (316), Hastelloy C (H276c), Monel (Cu30Ni70), Tantalum (Ta), Fluoroplastic (PTFE)

Connection method:

Screw connection: M20 × 1.5; G1 / 2; 1 / 2NPT;

Flange connection: according to the Ministry of Chemical Industry HG, GB GB and Japan JIS, ANSI and other standards of the United States manufacturing;

Isolator material:  stainless steel,  fluorine plastic.

Gaskets Material:  NBR, fluorine plastic.

Sealing liquid:   silicone oil, vegetable oil

Executive Standard: JB / T8624-1997

This series of instruments not only has a novel design, reliable structure, complete specifications, good stability and adaptability, but also has the advantages of measurement and control, simple installation, small maintenance and so on.

 Diaphragm in the medium under pressure caused by deformation, sealing liquid is pressed to form a pressure equal to P, conduction to the pressure gauge, indicating the measured medium pressure

Due to the thermal expansion of the sealing liquid and the stiffness of the diaphragm and the temperature, the use of temperature deviation from 20 ℃ ± 5 ℃, the temperature has an error, the value of 0.1% / ℃.

Hose-connected diaphragm pressure gauge installed at the pressure of the Department and the pressure gauge at different locations, the liquid level difference will form a pressure difference ΔP impact, ΔP = seal liquid density × level difference. 

Diaphragm pressure gauge corrosion resistance includes the environment and the corrosion properties of the measurement medium, according to the conditions of use isolator, diaphragm, gasket material.