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diaphragm pressure gauge

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  • Category：pressure gauge
  • origin：SHANGHAI

Diaphragm pressure gauge SHANGHAI AUTOMATION INSTRUMENTATION CO. LTD. NO. 11 AUTOMATION INSTRUMENTATION FACTORY Shanghai Yi Electric Actuator SHANGYI ELECTRIC ACTUATOR SHANGYI BRAND SHANGHAI ROTORK CONTROL ACTUATOR SHANGYI ELECTRICAL ACTUATOR

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Diaphragm pressure gauge produced by SHANGHAI AUTOMATION INSTRUMENTATION CO., LTD. consists of a diaphragm isolator and a universal pressure gauge to form a system diaphragm pressure gauge. Diaphragm pressure gauge and equipment connected to the main thread connection and flange connection and health clamp and so on. The table is suitable for the measurement of strong corrosion, high temperature, high viscosity, easy crystallization, easy solidification, medium pressure with solid floats and the need to avoid the measurement of media directly into the general pressure gauge and prevent the accumulation of sediment and easy to clean the occasion.
Product Introduction
Diaphragm pressure gauge is mainly used for petrochemical, alkali, chemical fiber, dyeing, pharmaceutical, food, health systems and alkali and other industrial sectors in the production process to measure the pressure of fluid medium.
Diaphragm pressure gauge structure principle
When the pressure of the measurement medium P acting on the diaphragm, the diaphragm is deformed and the compression pressure gauge is used to measure the sealing liquid of the pressure measuring system to form P-
pressure. When the rigidity of the diaphragm is small enough, then △ P is also very small, the pressure gauge pressure measurement system to form the pressure close to the pressure of the measurement medium.
The use of diaphragm pressure gauges
When we measure the pressure of general gas, water and oil, you can use the general pressure gauge: when measuring nitric acid. Phosphoric acid, strong base pressure, available stainless steel pressure gauge. However, when the measured medium has a strong corrosive (such as hydrochloric acid, wet chlorine, ferric chloride), have a high viscosity (such as latex), easy to crystallize (such as salt water), easy to solidify (such as hot asphalt), There are solid floating (such as sewage), then select the above pressure gauge is not feasible, because it is SUS316 stainless steel tube will be corrosion of hydrochloric acid, asphalt and sewage in the floating body will soon plug the pressure gauge hole, Leaving the instrument out of use. Diaphragm pressure gauge can solve these problems, people can be based on different strong corrosive media and use different corrosion-resistant diaphragm material and play the role of anti-corrosion.
Technical indicators
1, the temperature characteristics:
Since the diaphragm pressure gauge system is filled with the sealing liquid as the medium for the transfer pressure, the pressure gauge increases with the temperature of the pressure receiving part due to the temperature expansion coefficient of the sealing liquid, and the temperature influence amount is related to the sealing liquid Expansion coefficient, diaphragm stiffness and pressure of the pressure section, especially for low-range pressure gauge, the impact is more obvious. Generally, the temperature error of the compression part is not more than 0.1% / ℃. Therefore, the total temperature of the diaphragm pressure meter is generally affected by the general temperature of the instrument temperature and the pressure of the diaphragm device pressure of the sum of the two.

SHANGHAI AUTOMATION INSTRUMENTATION CO. LTD.

NO. 11 AUTOMATION INSTRUMENTATION FACTORY

Shanghai Yi Electric Actuator

SHANGYI ELECTRIC ACTUATOR

SHANGYI BRAND

SHANGHAI ROTORK CONTROL ACTUATOR

SHANGYI ELECTRICAL ACTUATOR

Shanghai Automation Instrumentation Co., Ltd.
Address：No.191 Guangzhong Road (West) Shanghai
Tel：+86 21-59812538
Fax：Code：201803
E-mail：sales@shanghai-instrument.com
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