Perfluoruotos PFPE difuzinės alyvos

Perfluoruotos PFPE difuzinės alyvos                 

Rūšis

Klampumas prie 20ºC, mm2 /s

Tankis, prie 20ºC, kg/m3

Stingio temperatūra, ºC

Garų slėgis, torr

Panaudojimas, savybės

 

 

 

IKV Zarox OYN 2

keičia seną Krytox 1506

 

IKV Zarox OYN 4

keičia seną Krytox 1514

 

IKV Zarox OYN 7

keičia seną Krytox 1525

 

 

 

 

 

62

 

 

142

 

 

261

 

 

 

 

 

1880

 

 

1890

 

 

1900

 

 

 

 

 

 

-60

 

 

-54

 

 

-48

 

 

 

 

 

 

4 x 10-7

 

 

2 x 10-7

 

 

1 x 10-7

 

 

PFPE inertiškos vakuumo alyvos.

Perfluoroto polieterio pagrindo inertiškos ir stabilios difuzinės alyvos. Išlieka stabilios pumpuojant agresyvius Lewis, halogenizuotas, stipriausio hidrotumo rugštis, halogenus, uraną, heksafluoridą ir pan. Nedegios bet kokiomis sąlygomis. Ideliai tinka pumpuoti deguonį, ozoną, silanus, fosfiną.

PFPE tepalai, perfluoruotos alyvos

ZAROX OYN 7

is a non-flammable, colourless and odourless perfluoroalkyl-polyether-type oil. It is totally inert physically and chemically in the event of aggression by all kinds of liquid or gaseous products (except for fluorinated solvents) and thermal and ionising radiation.

ZAROX OYN 7 is safe to use with all metals, plastics, leather,
elastomers and seal materials.
TYPICAL
APPLICATIONS
ZAROX OYN 7 is suitable for the lubrication of
  • all bearings, sliding
  • bearings chains or joints subjected to extreme temperatures or to
  • aggressive conditions capable of altering conventional lubricants. This oil is also adapted for the lubrication of all plastic and rubber parts thanks to its compatibility with tem.

Diffusion pump maintenance

It is recommended to keep logbooks for diffusion pumps to track maintenance history, and operational manuals to ensure maintenance is done per the manufacturer’s recommendations. During maintenance activity, the surfaces inside the vacuum diffusion pump need to be kept very clean in order to avoid contaminating the vacuum chamber. Even a single fingerprint can outgas water vapor and other molecules. When a pump is disassembled for routine maintenance and cleaning, it should be purged with dry nitrogen just prior to use. When a diffusion pump is pumping at a slower than normal rate, look for outgassing of moisture on the surfaces of plastics or other volatile substances or a leak. Check the condition and level of the fluid when the pump is cold. Withdraw a sample through the drain and visually check the level of fluid through the sight glass. Use new o-ring gaskets when replacing fill and drain plugs. During maintenance intervals, if there is diffusion pump oil loss, log the amount. This loss of fluid can be caused by: • Air leaking into the pump • Inadequate water cooling • Continuous operation in the overload inlet pressure range, also referred to as the “knee” of the curve. • Failure to insert the foreline baffle in the pump assembly. The recommended frequency at which the diffusion pump fluid should be changed depends on the specific process. Slight discoloration of the fluid does not affect pump performance but material build-up can lead to inefficient heat transfer.