Mechanical seals for kettles

Mechanical seals for kettles

The mechanical seal for kettle is an ideal way to solve the sealing of the stirring shaft. According to the logarithm of the sealing surface, there are single-end mechanical seals and double-end mechanical seals. Double-end mechanical seals are generally equipped with a balanced circulation system, which can be used in flammable , explosive, toxic and corrosive, high vacuum and other occasions with stricter sealing requirements. The auxiliary devices of mechanical seals include thermostat, balance tank (isolated fluid container), forced circulation balance system, etc. Main working parameters: sealed cavity Working pressure of inner medium: absolute pressure 1.33×10-5MPa-6.4MPa Stirring shaft diameter: φ20-φ200mm running line speed< 3m/s. 202, 202F, 202F mechanical seals: 202, 202F mechanical seals are single-face, multi-spring, drive screw drive, unbalanced mechanical seals for kettles. The applicable pressure is (absolute pressure) 0.0987-(gauge pressure) 0.25 MPa, sealing cavity temperature≤80℃, line speed<3m/s.202 type currently has two Ministry of Chemical Industry standards, namely HG5-752-78 standard (referred to as 78 standard) and HG2098-91 standard (referred to as 91 standard), the difference is the installation size is different. In the selection of 202 type When the shaft diameter of the mechanical seal exceeds 110mm, the 202F type with a lubricating box should be used as much as possible to improve the service life of the static ring. The 202F type is our company based on the 202 type, based on the structure and material of the static ring. Improved design, the dynamic and static ring materials are commonly used DgMq (IgBq). It is suitable for the seal of the stirring shaft of the reactor under various non-liquid lubrication conditions, such as the fermenter, the mold reactor, etc. The size of the 202FF type is exactly the same as that of the 202F type. , the performance is similar, but the static ring is made into a split type, so that the static ring can be easily replaced without dismantling the mixer shaft of the reducer, which is often used in the case of larger shaft diameter.