© Edwards Limited 2018. All rights reserved. Page 1
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Introduction
A652-01-840 Issue P
1 Introduction
1.1 Scope of this manual
This manual provides information about the component parts of the Edwards RV3, RV5, RV8 and RV12 rotary vane
pumps, together with the installation instructions for the clean and overhaul kits, the blade kits and the inlet valve
kit for the pumps. You must use the kits as specified in this manual.
Exploded views of a generic RV pump are shown in Section 2, together with a list of the component parts and an
indication of whether the component parts are available as spares.
Section 3 lists the maintenance kits available for the RV pumps.
Use a clean and overhaul kit to replace the springs, seals and elastomer components in the pumps.
Use a blade kit and a clean and overhaul kit when you replace the blades in the pump.
Use an inlet valve kit to replace the inlet valve assembly in the pump.
We recommend that when you use a kit, you use all the components in the kit.
The contents of the kits and how to install them are defined in Section 3.
1.2 Safety
The dynamic seals and O-rings used in these pumps are made from fluorinated materials. Fluorinated materials are
safe in normal use but can decompose into very dangerous materials (which may include hydrofluoric acid) if they
are heated to above 210 °C and above.
The pump may have overheated if it was misused, or if it was in a fire. If the pump has overheated, take extreme
care to avoid skin contact with any part of the pump and to avoid inhalation of the vapours. Health and safety data
sheets for fluorinated materials used in the pump are available on request: contact your supplier or Edwards.
WARNING
Do not touch or inhale the thermal breakdown products of fluorinated materials which may be
present if the pump has been heated to 210 °C and above. These breakdown products are very
dangerous. Some of the seals in the pump are made from fluorinated materials.
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