How to Respond to Mechanical Seal Leakage in a Centrifugal Pump? - LEAK-PACK

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How to Respond to Mechanical Seal Leakage in a
Centrifugal Pump?
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Mechanical Seal Leakage in a Centrifugal Pump
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TIPS TO PREVENT MECHANICAL SEAL LEAKAGE IN A
CENTRIFUGAL PUMP

• Mechanical seals play a critical role in
  the centrifugal pump. However, at times, they
  cause problems due to leakage. Though it is a
  rare occurrence, the eventualities are critical
  if it happens. Experts say that several types of
  damages can occur.

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Shaft or sleeve wear

• In the event of mechanical seal failure, it spins
  to the shaft sleeve or shaft. It causes damage to
  the metal and replacement of shaft or sleeve
  becomes compulsory. In any case, worn out sleeves
  shouldnt be reused.

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Dents and scratches on the shaft

• When the seal face shatters due to some
  catastrophic failure, there could be a scratch or
  dent in the sleeve or shaft due to small pieces
  of silica carbide or tungsten.
• Dont insert a new seal without replacing the
  shaft. The new seal would again get damaged.

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Leaking seal causes corrosion to the shaft

• When the mechanical seal leakage continues for a
  long time, then the shaft corrodes and weakens
  due to the dripping and leaking.

Etching or flashing

• When the mechanical seal leakage happens, and the
  fluid is boiling hot (like it happens in boiler
  feed applications), there could be flashing or
  etching.

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Fretting

• When the seal gets damaged due to improper
  installation, fretting happens because of a great
  deal of movement.

RESPONDING TO THE LEAKAGE IN MECHANICAL SEALS

• What could be the best way of maintaining
  mechanical seals? Yes, you should offload the
  task to professionals.

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• Since the mechanical tools have great wear and
  tear
• in a manufacturing environment, it is not
  possible to
• keep them in good health. These are the things
  that
• should be considered
• Check the symptoms of seal leakage. When there is
  a spray outside the seal or a continuous drip
  certainly, it is leaking. Do not overlook it in
  any case. Call the maintenance engineer
  immediately.
• When the collar screws arent locked properly
  while adjusting the displacement of the shaft
  axial, it increases the possibility of seal
  leakage. It happens because the seal faces get
  damaged due to the exposure.

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• When the ports on the gland plug are not plugged
  while connecting it to the external seal piping,
  there is always a possibility of leakage in the
  mechanical seals. It is important to check it
  during the maintenance work.
• When hydraulic cylinders are not used while
  detaching and attaching the parts, the alignment
  gets disturbed. As a result, the mechanical seal
  leaks.
• Avoid all these reasons and keep mechanical
  seals healthy for a long time.
• Also Read  
• How does a mechanical seal works?
• What is a Mechanical Seal in a Pump?

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