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A. GENERAL
INSTRUCTIONS
Instructions found herein cover disassembly, assembly and parts identification for the K12DHZ-
312P pump.
NOTE:
Individual contracts may have specific provisions that vary from this manual. Should
any questions arise which may not be answered by these instructions, refer to General
Instructions Manual, CA-1, provided with your order. For further detailed information
and technical assistance please refer to Imo Pump, Technical/Customer Service
Department, at (704) 289-6511.
This manual cannot possibly cover every situation connected with inspection, and maintenance of
equipment supplied. Every effort was made to prepare text of manual so that engineering and design
data is transformed into most easily understood wording. Imo Pump assumes personnel assigned to
operate and maintain supplied equipment and apply this instruction manual have sufficient technical
knowledge and are experienced to apply sound safety and operational practices which may not be
otherwise covered by this manual.
In applications where equipment furnished by Imo Pump is to become part of processing machinery,
these instructions should be thoroughly reviewed to ensure proper fit of said equipment into overall
plant operational procedures.
WARNING
If installation, operation and maintenance instructions are not correctly and strictly followed and
observed, injury to personnel or serious damage to pump could result. Imo Pump cannot accept
responsibility for unsatisfactory performance or damage resulting from failure to comply with
instructions.
B. INTRODUCTION
Instruction manual covers the K12DHZ-312P Imo pump. This pump has been designed for use in high
temperature clean fuel oil applications. Model of each pump can be identified by bill of material and
description on pump nameplate.
C. DESCRIPTION
OF
EQUIPMENT
The K12DHZ-312P pump is positive displacement, rotary screw pumps consisting of precision bored
housings that enclose a driven screw (power rotor) and eight intermeshing following screws (idler
rotors). These screws, when rotating, form a succession of closures or cavities. As they rotate, fluid is
moved axially from inlet port to outlet port in a continuous, uniform flow with minimum fluid pulsation and
pump noise.
Summary of Contents for IMO 3220/523
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