Edwards A313-01-985, Инструкция по эксплуатации, Страница: 11 / 44

© Edwards Limited 2008. All rights reserved. Page 5
Edwards and the Edwards logo are trademarks of Edwards Limited.
Introduction
A313-01-880 Issue A
1.4 Application
The safe area HV pumps are safe to handle non-flammable gases and vapours within the normal operating parameters
of the pumps, as defined in this manual.
The materials of construction of the pumps are specified in Section 2.10 . Before you use the pump, you must ensure
that these materials are compatible with the gases and vapours which you will pump or which may exist in the
external atmosphere.
You must ensure that your pump is suitable for your application. If you have any doubts as to the suitability of the
pump for your application, contact your supplier or Edwards for advice.
1.5 Normal operation
In normal operation, as defined by this manual, the boosters are safe for the pumping of non flammable gases and
vapours where there is no risk that the build-up of process deposits could reduce the operating clearances of the
pump mechanism and so cause damage.
A mesh screen is provided as standard on the inlet side of the pump. This should remain in place during installation
and commissioning to reduce the risk of damage owing to the ingress of gross debris.
The inlet screen must be left in place during normal process operation although it will reduce the pumping speed of
the pump by about 15%.
1.6 Abnormal operation

Pumping flammable gases.

Pumping hydrocarbon oxides.

Pumping pyrophoric gases.

Pumping gases that tend to self-decompose, or that are chemically unstable.

Pumping peroxides or oxygen enriched atmospheres.

Pumping of, or use in the presence of, dust atmospheres both inert and explosive.

Use in ambient conditions other than those specified in Section 2.1 .
WARNING
A booster must always be used in conjunction with a backing pump - never attempt to operate it
alone.
WARNING
Do not remove the inlet screen without performing a hazard analysis. Booster pumps have dry
pumping mechanisms that are designed to run with small clearances between the rotors and
stators. You must protect your pump from the ingress of dust or particles that could cause damage.
Such damage could lead to breach of the pump body in the event that removal of the inlet screen
allows ingress of solid objects or larger agglomerates of powder.
WARNING
Misuse of the booster as described below is strictly prohibited.