ENTRAINED GAS IN LUBRICATION OIL

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ENTRAINED GAS IN LUBRICATION OIL
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• BioKem Oil Services has specialist equipment that
  will remove 100 of entrained gas from
  lubricating and hydraulic oil.

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• BioKem has the equipment and the know-how to
  perform on-site oil filtration, dehydration and
  removal of entrained gases from your lubrication
  oil. Is the presence of entrained gases
  affecting your lubrication circuit?

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• If the lubricating oil comes into contact with
  gas at an elevated temperature and pressure then
  gas entrainment may occur. Entrainment or
  fluid aeration can cause numerous problems in
  hydraulic and lubrication oil systems including
  unacceptable noise, poor component response due
  to spongy behaviour of aerated fluids, cavitation
  damage and severe fluid degradation.

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• If bubbles are present in the fluid in the
  reservoir, they may be sucked into the pump,
  where the bubbles volume will increase, due to
  pressure decrease along the suction line, and
  then compress again when a region of higher
  pressure is encountered.

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• This compression is nearly adiabatic (the bubble
  gets hot, but does not materially increase the
  temperature of the surrounding fluid), resulting
  in tremendous localized temperatures at the
  gas-liquid interface. This may cause thermal
  cracking and sludge/varnish formation.

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• Cambridge Viscosity President Robert Kasameyer
  says that "when the compressor is running, the
  lubrication oil is hot and the entrained gas
  remains in gaseous phase. When the compressor is
  down, the lubrication oil cools and some of this
  gas can become liquid, which causes the lube oil
  viscosity to drop.

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• Then, when the equipment is re-started but before
  it heats up, the equipment is operating with
  inadequate lubrication, which can be a disaster!
  If it makes it through this stage, the light
  hydrocarbons will again become gaseous,
  separating out of the lube oil, and the lube oil
  will regain its proper viscosity. But the damage
  will already be done."

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• The key thing to know is that once oil has been
  absorbed into the gas flow, it will not be
  collected by the oil separator.
• Bubble removal devices can be used to
  mechanically remove bubbles from fluids however
  this is not a 100 effective method and foaming
  can occur.

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• Removal of entrained gas with a vacuum dehydrator
  provides for 100 removal of entrained gases and
  advantages such as the possibility of smaller
  reservoir size and lower overall system cost.

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• The installation of a BioKem Oil Services vacuum
  dehydrator (VDOPS) will ensure that 100 of
  entrained gas and 90 of dissolved gas is removed
  and that the oil is free from not only gas, but
  is very dry and clean.

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• Our VDOPS systems are equipped with high
  efficiency pleated Microglass filter elements
  rated Beta(c)1000 per ISO 16889 to quickly and
  reliably achieve very low particle counts to meet
  or exceed an ISO 16/14/11 cleanliness level.
• BioKem VDOPS 190l/min vacuum dehydrator

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• To know more information, visit us

http//www.biokem.com.au/