Pressure gauge anti-corrosion method have?

Pressure gauge is a kind of common measuring instruments, in many areas has a certain application. Users in the use of time to pay attention to the corrosion problem of pressure gauge pressure gauges, general pressure gauges in use after a period of time will be corroded. So we in the use of the pressure gauge to understand some of the anti-corrosion methods: 1, to the general corrosion medium, if stainless steel spring tube corrosion ability of 1 ~ 2 years, can be chosen for ammonia pressure gauges, when installation, guide tube shorter, buffer coil switch buffer tank, to prevent impurities clogging. 2, if there is a corrosion medium of stainless steel and copper, buffer tank can be switched to isolation tank and corrosion resistant spacer. The types of spacer can be selected according to the nature of the measured medium, but requires the use of more than six months is not bad as well. If ordinary spacer can apply, available fluorine chlorine oil as a spacer, but the price is very expensive, so the isolation tank to do small, should recycle when disassembling fluorine oil reuse. 3, diaphragm pressure gauge can be used, there are 2 titanium molybdenum and tantalum sheet, diaphragm and spring tube with methyl silicone oil transfer between pressure and minimum range can be 0 ~ 100 kpa, if diaphragm material doesn't decay resistance, can add a layer of F46 ( Fep) Diaphragm, but according to the permeability of medium, the transmission fluid can choose fluorine oil, can double isolation effect.