sealing problems of chemical pump
It is this requirement
led to shield pump Magnetic pump and expanding the application. But really no
leakage is still a long way to go, such as Magnetic pump shield pump shield isolation kits and sets of life issues, pitting the
material issues, problems, and so the reliability of static sealing. Is to seal
some of the basic aspects of the situation briefly as follows:
1.
Seal type for static seal, usually only two types of gaskets and seals, and
O-ring seals the most widely used; for dynamic sealing, chemical
pump seal packing seldom used, mainly by mechanical seal , mechanical seals
have a single face and double face, balanced and unbalanced type of points,
balanced seals for high-pressure medium (usually pressure greater than 1.0MPa),
double-end machine is mainly used for sealing high-temperature and
crystallization, with viscosity, with particles and toxic volatile media,
double-end mechanical seal chamber should be sealed into the isolation liquid,
the pressure is generally higher than the medium pressure 0.07 ~
0.1MPa.
2. Sealing material chemical pump static sealing materials
commonly used fluorine rubber, special circumstances, it uses PTFE material;
mechanical seal ring material configuration is more static key, not the hard
alloy of cemented carbide for the best, high prices are On the one hand, the
hardness difference between the two are not unreasonable, so the best features
of differential treatment according to the media.
More products of pumps
Pneumatic and electric diaphragm pumps
2012-06-04