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Horizontal End Suction Pump for Chemical Process, ASME B73.1-2001
Installation, Operation, and Maintenance Manual – CPP21
SECTION ONE - PRODUCT DESCRIPTION
These operating instructions contain important information about the installation, operation and service of the
unit. It is therefore imperative that the installing engineer and the responsible specialist/operating personnel
read and understand these operating instructions before installation and commencement of operation.
This manual must always be available in the operational area of the machine/plant.
Please contact a Ruhrpumpen representative should problems arise. The pump may only be opened by a
Ruhrpumpen approved technician during the guarantee period.
In case of queries, please have your project number and type designation of the pump available. You can find
both of these on the first page of these operating instructions or on the rating plate fixed to the pump.
When ordering spare parts we would further request that you give the description of the required parts,
together with their part numbers and identity numbers. You can find these on the sectional drawing and spare
part list enclosed.
1.1 INTRODUCTION
Ruhrpumpen pumps of type CPP21 are centrifugal pumps of the horizontal, vertically (radially) split case, foot
mounted heavy-duty construction with an overhung impeller, and are designed to meet the requirements of
ANSI/ASME B73.1 - 2001. These pumps are designed for continuous duty pumping of various fluids with
combinations of metallurgical, mechanical, and installation features for application in water, chemical and
industrial service.
The CPP21 is a single stage, end suction pump. For these pumps, rotation is clockwise as viewed from the driver
(coupling) end.
A spacer coupling is provided for accessibility of service and maintenance. The spacer permits back pull-out, that
is, complete removal of the rotating element without disturbing the piping or driver.
The following information is included in the nameplate of your pump unit:
• Serial number
• RPM
• Head
• Capacity
Please provide the pump Serial number when ordering parts; the information in the nameplate is relevant in
some sections of this manual to ensure safety operation of this pump.
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