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Basic rules mechanical seals equipment conditions

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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. – PowerPoint PPT presentation

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Title: Basic rules mechanical seals equipment conditions


1
Basic Rules - Mechanical Seals Equipment
Conditions LEAK-PACK
  • A Guide By Leak-Pack

2
  • 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.

3
  • 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.

4
  • 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.

5
  • 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.

6
  • 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.

7
  • 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?

8
Contact Us
  • Phone No 91 7069871592
  • Email ID  info_at_leakpack.com
  • Timing MON TO SAT
  • 9Am TO 7PM

Website https//www.mechanicalsealsindia.in/
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