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SECTION V
MECHANICAL SEALS
5.1 Description
Cartridge mechanical seals are provided, to seal the shaft against leakage. The seals used on the
"HPX" pump have internal design differences for sealing against specific liquids and conditions.
Long seal life with minimal leakage can only be obtained if the seals are provided with clean, cool
liquid. Even tiny solids that may be suspended in the liquid being pumped can damage the seal
faces and cause the seal to leak, making an external flush or a different seal arrangement
necessary. The seal balancing and flushing arrangement provided for each pump is designed and
fitted for the specific order requirements.
The "HPX" pump can be arranged with either a single, double or tandem mechanical pump seal.
Refer to the General Arrangement for piping connections to be used with your pump.
5.2 Servicing Mechanical Seal
Mechanical seal replacement or servicing requires that the pull out element be removed from the
casing.
For removal of pullout element refer to Manufacturer’s instructions.
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