How to Replace a Mechanical Seal on a Water Pump? | LEAK-PACK

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How to Replace a Mechanical Seal on a Water Pump?
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Mechanical Seal on Water Pump
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THE STEP-BY-STEP PROCESS TO REPLACE A MECHANICAL
SEAL ON A WATER PUMP

• What makes the water move through the plumbing
  system when you use a centrifugal pump? It is the
  concept of centrifugal force.
• In this pump, a shaft spins at incredible speed
  and rotates an impeller. Thus, a vacuum is
  created through centrifugal force which pulls
  water.
• To prevent the water from entering into the
  electrical system a mechanical seal is installed
  centrifugal pump behind the impeller.
• When there is damage to the seal due to wear and
  tear, it becomes mandatory to replace it. To
  perform the task, you must open the pump system
  and remove the impeller from the shaft.

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HERE IS A STEP-BY-STEP PROCESS TO ACHIEVE THE
TASK

• DISCONNECT THE PUMP FIRST
• Before doing anything, disconnect the pump first.
  Turn off the power and disconnect the pump from
  the electrical system. You need to ensure that
  there is no possibility of the pump starting up
  while you change the seal.
• You should cut the plumbing tube which is
  connected to the centrifugal pump. Use a saw to
  cut it. Take the pump in a bigger workspace.

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• UNSCREW THE BOLTS AND TAKE THE PUMP OUT
• Using a wrench, unscrew the pump bolts around the
  housing. Remove the motor from the wet end. You
  need to put the wrench over the motor shaft. Open
  the impeller by turning anticlockwise off the
  shaft.
• REMOVE THE SEAL
• Take the piece of the seal from the back of the
  impeller. Now slide the remaining portion of the
  seal off the shaft. It is the time when you
  should keep the new seal handy.

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• REPLACE THE SEAL
• Take the new seal and place it on the shaft.
  Slide the seal gently along the shaft without
  touching the front face of it. The seal may not
  function well if the face gets body oil on the
  face. Hence, utmost precaution is needed.
• PUT EVERYTHING IN PLACE AGAIN
• The task of replacing the mechanical seal is
  over. Now it is the time to assemble everything.
  Use the wrench to hold the shaft. Screw the
  impeller onto the motor shaft of the pump.
• Align the bolt holes on the motor and wet side of
  the pump. Insert the bolts first. Take the wrench
  and secure the pump ends together.

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• Place the pump in the original position. Place
  the plumbing and secure it using glue and primer.
  Let it dry well before using the pump.
• Make the electrical connection. The pump is ready
  again!
• Leak-Pack specialize in providing solutions to
  all types of leakages by manufacturing Mechanical
  Seals and Sealing Components as per customers
  drawings, samples or requirements. To know more
  about Mechanical Seal call on 91-(2739)
  271592 or email at info_at_leakpack.com.
• Also Read
• What is a Mechanical Seal in a Centrifugal Pump?
• How to Respond to Mechanical Seal Leakage in a
  Centrifugal Pump?

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CONTACT US

• Mob No- 7069871592
• 02739271592
• E-Mail- info_at_leakpack.com

Website- www.mechanicalsealsindia.com