The difference between gear pump and stainless steel gear pump
Although the working principle is the same, and the efficiency of work is similar, but the material between the two is a vastly different, so they are used in different working conditions are also different , The following on the difference between the two introduced. Stainless steel gear pump and the difference between the ordinary gear pump Where stainless steel gear pump body, bearing, gear and other 304 stainless steel castings, gears made of high quality stainless steel, but also according to the special needs of users with copper or cast steel material. Bearing box on the stuffing box, starting from the axial seal. KCB300 ~ 960-type pump with mechanical seal, the bearings using single row radial ball bearings. Stainless steel gear pump with three oil-resistant rubber ring and the middle of the lining of a ring, adjust the two cap screws to adjust the degree of sealing, bearings using copper-based powder oil bearing. In addition, stainless steel gear pumps can be filled with packing to good flexibility, high temperature and low temperature, chemical stability and self-lubricating flexible graphite as a filler. The ordinary gear pump body, such as gray iron castings for the bearing, gears made of high-quality carbon steel, suitable for conveying non-particulate fibers, non-corrosive, the temperature is not higher than 200 ℃, the viscosity of not more than 1500CST heavy oil, Diesel, machine oil, and other liquids of a similar nature. Because of this, so ordinary gear pump can be applied to many industries, but in the medium corrosive, corrosive gas environment, ordinary gear pump is not competent. At this time only the selection of simple and compact structure, easy to use and maintain, reliable performance, cost-effective stainless steel gear pump to be competent.
suivant: Selection and installation of centrifugal pump