Section One - Product Description; Introduction - WDM PI Operation Manual

PI Operation Manual

1. 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 WDM Pumps dealer should problems arise. The pump may only be opened by a
WDM Pumps 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

WDM Pumps of type PI are In-Line Vertical pumps, vertically (radially) split case, centerline supported
with an overhung impeller.
The PI is a single stage, single suction pump. For these pumps, rotation is clockwise as viewed
from the motor (coupling) end. These pumps have a top Pull-Out which simplifies maintenance.
The complete rotor assembly is easily removed for inspection without disturbing the pump's piping.
When performing maintenance to the mechanical seal, it is not necessary to remove the complete top
assembly, as this pump has a split coupling that allows easy removal and access to the mechanical
seal without removing the motor (driver) or adapter.
The PI pump has a carbon made bushing for pump shaft alignment.
The following information is included in the nameplate of your pump unit:
• Serial number
• RPM
• Head
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