In chemical pump, the conveying corrosive medium, once the sealing gasket failure, damage is very large. So, should attaches great importance to the chemical pump sealing, ensure the safety and normal operation.
Chemical pump seal gaskets failure, basically have the following several factors
1 Acting on chemical pump seal gaskets insufficient pressure. Because there is always existing microscopic jagged, sometimes on seal surface processing several ring grooves, if guarantee sealing, it needs to exert enough pressure, make its produced elastic and plastic deformation to fill the gap
All sorts of gasket materials compaction force size usually expressed in sealing gaskets manufacturer samples or product instructions, also can be decided through experiments. Because of assembling can not reach gasket needed compaction force, or due to the operation of the vibration in period that compaction of bolt looseness and make the compaction force is reduced, and the aging of deformation and gasket material loss and original elasticity, can make gasket failure and leaking.
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2012-08-07

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