Customers who have used the pump know that the mechanical seal of the pump as a vulnerable part of the pump, when the conveying medium is special or not used when it is easy to damage, then there is no mechanical seal that can take into account these two points, not so easy to break, the answer is yes.
External mechanical seal has been listed for a few years, because of its special structure, the need to reprocess the seal cover and baffle of the pump, many pump plants have abandoned the use. Ettek Pump industry in many types of chemical pumps, especially steel lined fluorine plastic centrifugal pump with external mechanical seal, such as the steel lined fluorine plastic centrifugal pump is routinely equipped with external mechanical seal, the most important feature of the seal is that the pump shaft seal can be repaired and adjusted without disassembly of the pump body, when the sealing surface is worn to a certain degree, the seal bolt can be adjusted. The seal can also continue to be used, which is completely impossible to do in the use of ordinary seals.
