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Stainless Steel Pressure Gauge Precautions
- Aug 23, 2017 -

Stainless steel pressure gauge corrosion precautions

In the pressure gauge maintenance which is very important point is the pressure gauge corrosion, stainless steel pressure gauge anti-corrosion Note:

1, the general corrosive media, if the stainless steel spring tube can withstand 1 to 2 years of corrosion, you can choose to use ammonia pressure gauge, the installation, the pressure pipe to be short, buffer coil switch to buffer tank to prevent impurities.

2, if the media on the corrosion of stainless steel and copper, the buffer tank can be used to isolate the tank, adding corrosion-resistant isolation fluid. The type of isolation fluid can be selected according to the nature of the measured medium, but requires the use of more than six months without deterioration as well. If the ordinary isolation fluid can not be applied, the use of fluorocarbon oil for isolation, but the price is very expensive, so the isolation tank to do small, disassembly and recovery of fluorine oil to re-use.

3, can be used diaphragm pressure gauge, there are molybdenum 2 titanium and tantalum tablets, diaphragm and spring tube with methyl silicone oil transfer pressure, the minimum range can be done 0 ~ 100kPa, if the diaphragm material is not rot, You can add a layer of F46 (poly perfluoro ethylene propylene) film, but the instrument sensitivity is reduced. F46 can also be used as a direct isolation diaphragm, but pay attention to the permeability of the medium, the transfer fluid can use fluorine oil, you can play a double isolation.