It is mainly used for pressure measurement of viscous liquid, mud, anti scaling, anti crystallization, oil shield machine and other working conditions. The integrated stainless steel structure is adopted as a whole, and there are two kinds of flat membrane structures with or without cavity. The optional materials in contact with the medium are 316L stainless steel and fluororubber, with good wear and corrosion resistance, good waterproof, anti-interference and long-term stability. Easy to install, with high seismic resistance and impact resistance.