What should I do if the pressure gauge core is deformed?

After a period of use and pressure, the pressure gauge movement will inevitably appear some deformation and wear, and the pressure gauge will produce various errors and failures. In order to ensure its original accuracy without distorting the value transmission, it should be replaced in time to ensure that the instructions are correct, safe and reliable.

Pressure gauges should be cleaned regularly. Because the inside of the pressure gauge is not clean, it will increase the wear and tear of various parts, thus affecting its normal work, which will seriously make the pressure gauge malfunction and scrap.

If the medium at the pressure measuring part fluctuates greatly, is frequently used, requires high accuracy, and requires strict safety factors, the verification period can be shortened appropriately according to the specific situation.

Pressure gauges installed on equipment or pipelines with toxic, flammable, explosive and other media should be regularly checked for air tightness to prevent harmful media from leaking and causing potential safety hazards.

The metal shell of the pressure gauge shall be derusted regularly and painted with antirust paint to protect the internal parts from damage.

The dial glass of the pressure gauge should be treated with anti-corrosion, dustproof and anti-oil pollution, so as to facilitate the observation of the staff. The location of the label should not interfere with the reading, and the content on the label should be clear and legible.

Anti-freezing measures should be taken for the condensate pipe of steam pipeline, and the condensate water should be blown off after the production is stopped in winter to prevent the pressure gauge from being damaged.

Scrapped pressure gauges shall be submitted to the warehouse for treatment in time, and there shall be no redundant pressure gauges in the production operation site.

Select the quality of pressure gauge.

1. Generally, the spring tube of pressure gauge is a tubular spring with a certain cross-sectional shape (flat circle and approximate ellipse are commonly used), which is bent into a "C" shape and can meet certain elastic requirements. If the spring tube is too small, it will affect the accuracy level of the pressure gauge. 　　

2. If the indicated value of the pressure gauge exceeds the allowable error, the indicated value adjusting screw of the gauge should be adjusted. If there is no indicated value adjusting screw in the gauge, the gauge can only be judged as unqualified. 　　

3. The dial graduation line of the pressure gauge should be uniform, and the indicator end of the pointer should cover 1/3 ~ 2/3 of the shortest graduation line length. 　　

4. When there is no pressure or vacuum, the pointer of the pressure gauge with a stop pin should be close to the stop pin, and the "shrinking" shall not exceed the specified allowable error. 　　

5. The case of the pressure gauge should be able to protect the internal parts from pollution, and the pressure gauge should be equipped with a safety hole, and the safety hole should be equipped with a dustproof device. 　　

6. Digital pressure gauge. It depends on the rationality of the overall structure, the selected materials, the aging process of electronic components, and the long-term stability.

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