4 Product description
4.1 Product identification
To correctly identify the product when communicating with our service center, always have the informa-
tion from the product identification label available (see chapter "Labels").
4.1.1 Scope of delivery
● 1 vacuum pump
● 1 remote cover plug for remote connector (connected to the pump)
● 1 operating instruction manual
● 1 sheet of multilingual labels
According to the ordering configuration:
● 1 mains supply cable
4.1.2 Differences between pump versions
The multi-stage Roots pump technology in
the ACP series
meets the requirements of applications
where a clean and dry vacuum is needed.
SD standard version
The pump is designed for clean (dust-free) and non-corrosive gas pumping applications. Standard
pumps are equipped with a gas ballast device to improve pumping of light gases and avoid vapor con-
densation inside the pump.
G version
The pump is compatible with traces of corrosive gases. A purge gas stream protects low- and high-
pressure ball bearings and dilutes trace amounts of corrosive gases.
CV version
The pump is specially designed to prevent vapor condensation inside the pumping module with:
● A high gas ballast flow to warm up the pump and dilute condensable gases.
● An external drainable silencer to remove liquid from the pump exhaust.
● A gas purge to protect lip seals and ball bearings from condensable vapors.
CV versions extend the pure water vapor pumping capacity.
CP version
The pump design is based on a standard pump. It is specially made to recirculate gas or to recover
chemically inert gas. This refers to helium isotopes or rare gases, which are costly. The pump has a
pumping device on the housing but does not have a gas ballast or purge to prevent incorrect use.
LG version
The pump design is based on a standard pump. It is designed for pumping light gases (for example: He,
H) for ultimate pressures < 10 hPa. It has an ON/OFF manual gas ballast and a permanent air injection
line with a reduced flow. It can be used for fore pumping a turbomolecular pump used in high-vacuum
processes.
SH version
The pump design is based on a standard pump. It is used in applications where the backstreaming of
fluorine is critical, in particular those installations that use NEG (Non-Evaporable Getter pump) ion
pumps. The lubricants and seals used do not contain fluorine compounds.
Please contact Pfeiffer Vacuum for more detailed information on specific applications.
Product description
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Содержание ACP 28 CP
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