Prochem Pump

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Sealing Arrangements


SINGLE-ACTION NON-RELIEVED INTERNAL MECHANICAL 
SHAFT SEAL

Application:

Generally used where products pumped are chemical related slurries, and no external flushing can be accommodated, due to dilution or contamination. Flushing is by means of product recirculation.

single action internal mechanical shaft seal


SINGLE-ACTION EXTERNAL MECHANICAL SHAFT SEAL WITH PTFE BELLOWS

Application:

Generally used where products pumped are semi to highly corrosive and relatively clean. They should be utilised where dry running cannot occur.

single action external mechanical shaft seal


DOUBLE-ACTION MECHANICAL 
SHAFT SEAL

Application:

Generally used where products pumped are contain solids or tend to crystalise, or have limited lubricating properties. Flushing is normally by means of external water supply or other compatible fluid. They can also be used in systems where dry running can occur.

double action internal mechanical shaft seal


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