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Fisherbrand™ 19 Mechanical Pump Oil

Fisherbrand 19 Mechanical Pump Oil is a durable vacuum pump fluid recommended for belt-drive and direct-drive pumps. Properties include lower vapor pressures, reduced backstreaming, and longer fluid life. For use in non-corrosive and non-extreme operating conditions.

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Catalog No. S41384

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  • Also for use in the forepump of a diffusion pump system with polyphenyl ethers, silicone, and ester-based pump fluids
  • Permits cooler pump operation, lower maintenance, longer fluid life, reduced power consumption
  • Reduces backstreaming
  • Protects O-rings
  • Ultimate pressure at 25°C (77°F), 8.5 x 10-5 torr
  • Pour point, − 15°C (+ 5°F)
  • Flash point, 212°C (415°F)



19 Mechanical Pump Oil
Belt and direct-drive vacuum pumps
Straw yellow
55 cSt at 40°C
0.94 L
Used to prolong life of all mechanical vacuum pumps
112°C at .01 torr
12 Pk.
1 qt.


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