Instrument material :
The material of the instrument should, in principle, be selected by the user according to the corrosion type and corrosion size of the measured medium and the medium working temperature. The wedges and joints in this product are made of stainless steel (1Cr18Ni9Ti or 304 or 316), and the shell (flange, pipe) is made of carbon steel or stainless steel, which is suitable for non-corrosive media with medium temperature below 400°.
When the medium working temperature is ≥400°C, it is necessary to choose a more suitable heat-resistant steel according to the specific working temperature, oxidation and corrosion of the medium.
When the medium working temperature is in the range of -20 ~ 190°C, it is appropriate to use 1Cr18Ni9Ti or other low-temperature resistant materials specified by the user.
For all kinds of acid, alkali, salt strong corrosive media, the instrument material needs to be determined by the user and our company separatel…