There are 79 standard,; 93 standard, Kaifeng enamel reactor manufacturers, generally corresponds to a diameter of a volume, but like there are two kinds of DN1600 and DN1750 5000L tank. 79 standard and 92 standard mainly reflects tank interface style, enamel reactor manufacturers, instead of enamel kettle body size. Enamel kettle are standard, including mixing, interface, Laiwu enamel reactor manufacturers, but many manufacturers for their own interests, their own adopted its own set of dimensions to make, of course, and the standard is almost, but not complete and other manufacturers. This results in and connected to other such vessel gear and racks difficult to unify. Enamel equipment is made of high silicon content of vitreous enamel coating on the steel surface by 920 ℃ ~ 960 ℃ temperature repeatedly enameling, vitreous enamel adhesion to the metal surface from tires. The enameling properties are: 1 Corrosion Resistance: ability of organic acids, inorganic acids, organic solvents, and the PH value is less than or equal to 12 and an alkali solution; but strong base, HF, and a temperature greater than 180 ℃, concentrations greater than 30% phosphoric acid. NA; 2 is not sticky: smooth glass face medium non-stick and easy to clean; 3 insulation: Suitable for medium process is easy to produce static situations; 4 Isolation: glass layer dielectric isolation and vessel steel tire Iron ions are not dissolved medium; freshness of 5: Glass layer with good preservation of media performance.