Pfpe-Prepared Rv Pumps; Summary; Installation; Operation - Edwards RV3 Instruction Manual

8

PFPE-prepared RV pumps

8.1

Summary

If a PFPE-prepared RV pump has been ordered, the pump will be supplied prepared for use with Edwards PFPE
mechanical pump oils, such as Fomblin YVAC 06/6 and Krytox 1506.
PFPE-prepared RV pumps are suitable for pumping high concentrations of oxygen.
Refer to Edwards publication P400–40–100 (Vacuum pump and Vacuum System Safety) before installing and using a
PFPE-prepared RV pump.
8.2

Installation

Never use hydrocarbon lubricants in a PFPE-prepared pump.
When filling the RV pump with oil (as described in
a hydrocarbon oil.
8.3

Operation

PFPE-prepared RV pumps are suitable for pumping high concentrations of oxygen, but Edwards
recommends that PFPE-prepared RV pumps are not used for the pumping of hazardous materials.
Operation of a PFPE-prepared RV pump is as specified in
8.4

Maintenance

Obey the safety instructions given below and take note of appropriate precautions. Failure to do
so can cause injury to people.
Take additional care if it is suspected that the pump (and hence the PFPE oil) has overheated.

Do not touch or inhale the thermal breakdown products of PFPE oil which may be present if the pump has

been heated to 260°C and above. PFPE oils are safe in normal use but can decompose into very dangerous
substances if they are heated to 260°C and above. The pump may have overheated if it was misused, if it
malfunctioned, or if it was in a fire. Material Safety Data Sheets for PFPE oils used in the pump are available
on request: contact the supplier or Edwards.
Fomblin oil has different properties from other pump oils, therefore:
If the PFPE-prepared RV pump is filled with Fomblin oil, Edwards recommends regular checks for oil leaks are

carried out, particularly around the shaft seals.
If an oil leak is detected, contact the supplier or Edwards for advice.

© Edwards Limited 2018. All rights reserved.
Edwards and the Edwards logo are trade marks of Edwards Limited.
CAUTION
Section 3.5), a suitable Edwards PFPE oil must be used. Do not use
WARNING
Section 4, but take note of the warning above.
WARNING
A652–01–880 Issue Y
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