Basic rules mechanical seals equipment conditions

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Basic Rules - Mechanical Seals Equipment
Conditions LEAK-PACK

• A Guide By Leak-Pack

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• Keeping mechanical seals safe is essential for
  their performance, reliability, and durability.
  Equipment conditions play a vital role in it.
• The mechanical seals are designed with the
  objective to stop leakage of the fluid during the
  operations without limiting the amount of motion
  in the rotating parts.
• They are installed onto the rotating shaft.
• The two polished seal faces come into contact
  with each other. They are spring loaded to
  facilitate proper rotation.
• One of the them is stationary and the other
  rotates along with the pump shaft.

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• The faces are sealed to the mounts by a secondary
  seal which is an O-ring in the majority of the
  applications.
• WHAT EQUIPMENT CONDITIONS SHOULD YOU KEEP IN MIND
  TO KEEP THE MECHANICAL SEALS GOOD?
• Never bent the rotating shaft more than a limit
• Experts say that the maximum deviation that can
  be tolerated is .001 inches the maximum.
• If the shaft crosses this limit, then the lapped
  surfaces do not remain together. It impacts the
  sealing.

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• Make sure the bearing doesnt move axially
• When its bearing supports the rotating shaft, you
  should ensure that the axial movement is not more
  than 0.005 inches.
• If the shaft moves more than that, then the force
  pushes the seal faces together. Over-compression
  of the polished seal faces causes excessive wear
  and tear.
• If the shaft moves in the reverse direction, then
  it may under-compress the sealed faces. It causes
  visible damage to the finishing and polish of
  mechanical seals.

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• Make sure the mounting surface is perfectly
  perpendicular to the shaft
• It is another critical aspect that keeps your
  mechanical seal in the right condition.  The
  run-out of the shaft and the mounting surface
  should never exceed more than 0.005 inches of
  shaft diameter.
• When the shaft is not perfectly perpendicular,
  then seals face excessive wear while rotating.
  Its spring mechanism, drive pins, and pads get
  damaged. Ultimately the mechanical seal conks off.

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• Mechanical seals always expect to have some shaft
  movement at high speeds. However, the shaft
  movement has to be the minimum to achieve the
  long life of a seal.
• For optimum seal life, the shaft that runs must
  be limited to 0.002 inches when the rotating
  speed is 1800 RPM. Any shaft run more than that
  will damage the seal faces. It will hamper the
  life of the seal.
• Call the sealing specialist to assess the damage
  if you arent much sure about it. He has a
  comprehensive checklist to troubleshoot the
  problem.

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• Leak-Pack is ISO 90012008 certified company and
  one of the best mechanical seals suppliers in
  India, 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
• An Introduction to the Five Key Features of Good
  Mechanical Seal Design
• How do Pump Seals Work?

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Contact Us

• Phone No 91 7069871592
• Email ID  info_at_leakpack.com
• Timing MON TO SAT
• 9Am TO 7PM

Website https//www.mechanicalsealsindia.in/