Anti corrosion measures for the hottest pressure g

2022-08-12
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Anti corrosion method of pressure gauge

anti corrosion method of pressure gauge:

the atomic density near the amorphous surface is reduced

1. For general corrosive media, if the stainless steel spring tube can withstand corrosion for 1 ~ 2 years, it can be used as an ammonia pressure gauge. The installation can be measured in 10 sections. When installing, the impulse pipe should be short, and the buffer coil should be changed to a buffer tank to prevent impurities from blocking

2. If the medium has intentional corrosion to stainless steel and copper, the buffer tank can be changed to an isolation tank and added with corrosion-resistant isolation liquid. The type of liquid barrier can be selected according to the nature of the measured medium, but it is better to use it for more than half a year without deterioration. If the ordinary isolating fluid is not applicable to the maintenance method of the belt pulling machine, fluorochlorine oil can be used as the isolating fluid, but the price is very expensive, so the isolating tank should be small, and the fluorooil should be recycled for reuse during disassembly and assembly. Imported pump

3. Diaphragm pressure gauge can be used. At present, there are molybdenum 2 titanium and tantalum sheets. Methyl silicone oil is used to transmit pressure between the diaphragm and ballistic tube, and the minimum range can be 0 ~ 100KPA. If the diaphragm material is not corrosion-resistant, a layer of F46 (perfluoroethylene propylene) diaphragm can be added, but the sensitivity of the instrument is reduced. F46 can also be directly used as the isolation diaphragm, but it can only rely on imports. Pay attention to the permeability of the medium. Fluorine oil can be used as the transfer fluid, which can play a double isolation role

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