Circor IMO 110 User manual

TM
INSTRUCTION MANUAL
AND
PARTS LIST
FOR
110 / 210H CANNED MOTOR PUMPS
WARNING
This Special Instruction Manual and General Instructions Manual, CA-1,
should be read thoroughly prior to pump installation, operation or
maintenance.
SRM00073 Rev. 01(21-0001) October, 2021

READ THIS ENTIRE PAGE BEFORE PROCEEDING
FOR THE SAFETY OF PERSONNEL AND TO PREVENT DAMAGE TO THE EQUIPMENT, THE
FOLLOWING NOMENCLATURE HAS BEEN USED IN THIS MANUAL:
DANGER
Failure to observe the precautions noted in this box can result in severe bodily
injury or loss of life.
WARNING
Failure to observe the precautions noted in this box can cause injury to personnel
by accidental contact with the equipment or liquids. Protection should be provided
by the user to prevent accidental contact.
CAUTION ATTENTION
Failure to observe the precautions noted in this box can cause damage or failure
of the equipment.
Non compliance of safety
instructions identified by
the following symbol
could affect safety for
persons:
Safety instructions where
electrical safety is
involved are identified by:
Safety instructions which
shall be considered for
reasons of safe operation
of the pump and/or
protection of the pump
itself are marked by the
sign:
ATTENTION
CONTENTS
Safety and Table of Contents .......................................................................................................A
General Instructions.....................................................................................................................1
Model Designation ........................................................................................................................ 1
Ordering Instructions.....................................................................................................................1
Installation.....................................................................................................................................2
Operation ......................................................................................................................................3
Inspection and Parts List...............................................................................................................3
Maintenance - Disassembly Instructions.......................................................................................4
Maintenance - Reassembly Instructions ....................................................................................... 4
Pump Assembly Drawing.............................................................................................................. 5
ATTENTION
If operation of this pump is critical to your business, we strongly
recommend you keep a spare pump or major repair kit in stock at all times.
As a minimum, a minor repair kit (o-rings, gaskets, shaft seal and bearings)
should be kept in stock so pump refurbishment after internal inspection can
be accomplished.
A

GENERAL INSTRUCTIONS
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 Service Department at [phone].
This manual cannot possibly cover every situation connected with installation, operation, 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 must assume 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 be integrated with a process or other
machinery, these instructions should be thoroughly reviewed to determine proper integration of the
equipment into overall plant operational procedures.
This instruction manual covers the Series 110H and 210H Canned Motor Pumps. The model
numbers of a particular pump may be found on nameplate. Refer to Figures 1 and 4 and Tables 1
and 2 for instructional keys when using this manual.
Figure 1 – Model Designation
Figure 2 – Nameplate Data
Ordering Instructions
All correspondence pertaining to renewal parts for equipment must refer to instruction book and should be
addressed to the nearest Imo Pump representative or sales office.
Handling of renewal orders will be greatly facilitated if following directions are carefully observed:
1. Give number of instruction book.
2. Give serial number of machine for which part is desired. Number appears on nameplate
3. Give name and part number from parts list or assembly drawing
1

INSTALLATION
WARNING
This Equipment is limited to handling fluids compatible with motor windings and
insulation. Provide suitable safety and emergency systems to protect personnel
and property from injury due to pump malfunction, If pump handles hazardous
fluids, provide for safety in event of pump leakage or malfunction.
CAUTION ATTENTION
Piping to pump MUST be independently supported and not allowed to impose
strains on case. Piping connections should be flexible whenever possible and
make provision for expansion and contraction due to temperature change. Piping
connections must not impose more than 1 times “API” forces and moments on inlet
and outlet.
Inlet Position
The pump inlet flange may be positioned in increments of 90° from position shown on assembly drawing.
To change position of flange, remove socket head cap screws (203) and lock washers (207). Rotate
housing (201) and inlet head (202) as a unit taking care not to damage O-ring (409). Replace socket head
cap screws with lock washers and torque to value on assembly drawing depending on pump type. Care
must be taken to not disengage pump shaft (311) from motor shaft . If this occurs, ensure key (213) is in
place and properly related before re-engaging shafts.
Suction Line
The suction line should be as short as possible. A suction line one size larger than pump inlet is
recommended. All joints in suction line must be tight and sealed. This prevents air from being drawn into
a pump with negative suction pressure or leaks from pump or line with positive pressure.
Suction Strainer
A suction strainer of at least 100 mesh with a flow capacity of 30 - 50 gpm and a pressure drop not
exceeding 0.5 psi ( when newly installed) should be used. (Inlet strainer shall be sized to insure that
pressure at inlet port of pump will not, under any circumstances, exceed 10 inches of mercury vacuum.)
Maintenance instructions shall provide for periodic cleaning or replacement of inlet strainer.
Electrical Connections
A label giving the electrical wiring connections for canned motor pump is located under conduit box cover
and in Figure 3. Note that extended reverse rotation can cause pump damage.
Figure 3 – Motor Wiring Connections
Rotation
Before attempting to operate pump, rotation must be verified. It is suggested that this can best be
accomplished with a Phase and Motor Rotation Tester such as AVO Biddle Instruments Catalogue No.
560060 / 560400 (510 Township Line Road, Blue Bell, PA 19422 USA). Follow instrument manufacture’s
instructions to determine proper motor/pump rotation.
2

OPERATION
Structural Limits
Operating conditions, such as speed, fluid viscosity, inlet pressure, discharge pressure, temperature,
filtration, duty cycle, mounting etc. are interrelated. Due to these variable conditions, specific application
limitation may be different from structural limitations. This equipment must not be operated without
verification that operating requirements are within its capabilities.
CAUTION ATTENTION
Under no circumstances are the following structural limitations to be exceeded:
Maximum Inlet Pressure ................................................................................................... 50 PSIG
Maximum Discharge Pressure:
Series 110 ...................... 400 PSI (1500 SSU max., 40 SSU min. viscosity at pumping temp.)
Series 210 ...................... 400 PSI (1500 SSU max., 40 SSU min. viscosity at pumping temp.)
Maximum Fluid Temperature ................................................................................................ 240°F
INSPECTION AND PARTS LIST
Intervals for inspection and replacement of wear parts will vary greatly with the properties of pumped fluid
and can only be determined by experience. All internal parts of unit are lubricated and cooled by pumped
fluid. Fluid that contains abrasive materials or is corrosive will significantly reduce service life and require
shorter service intervals. Wear in pump will normally show as vibration, noise, and loss of capacity or
reduction in flow or pressure.
Table 1 – Pump Parts List
IDP DESCRIPTION QTY
118 Orifice 1
201 Housing 1
202 Inlet 1
203 Hex Bolt 4
204 Outlet 1
205 Hex Bolt 4
207 Lock Washer 4
208 Balance Piston Bushing 1
213 Key 1
216 Bearing 1
217 Truarc Ring 2
222 Retainer 1
223 Cap Screw 4
311 Power Rotor 1
314 Idler Rotor Assembly 2
409 O Ring 2
432 O-Ring 1
MAINTENANCE
WARNING
BEFORE working on equipment, make sure all power to the equipment is
disconnected.
GENERAL: To perform maintenance on canned motor pump, the following initial conditions shall be
completed prior to maintenance action. Close inlet and outlet valves and tag “Out of
Service”. De-energize pump drive motor and vent all pressure from pump. Remove drain
plug (105) and drain fluid from pump and motor.
NOTE: Part numbers contained within parenthesis such as (103) refer to the balloon numbers as shown
on Figure 3 and the IDP numbers in Table 1.
3

Tools
Standard shop tools are required for the procedures given in this manual. An accurate torque wrench must
be used to tighten all hex bolts and cap screws
CANNED MOTOR PUMP DISASSEMBLY AND ASSEMBLY INSTRUCTIONS
NOTE: The below disassembly procedure applies to the pump only. The motor is not field repairable
and must be returned to the factory for repair or replacement.
PUMP REMOVAL AND DISASSEMBLY (See Figure 4)
1. Separate pump from canned motor by removing bolts (205) and O-ring (432).
2. Remove key (213) from power rotor (311).
3. Remove four hex bolts (203) with lock washers (207).
4. Remove inlet head (202).
5. Remove idler rotors (314) with thrust shoes by screwing them out of rotor housing (201).
6. Remove rotor housing (201) with O-ring (409).
7. Remove O-rings (409) from rotor housing (201).
8. Remove four cap screws (223) and ball bearing retainer (222).
9. Remove power rotor assembly (311) from inboard cover (204)
10. Remove truarc rings (217) and bearing (216) from power rotor (311).
PUMP REASSEMBLY AND INSTALLATION (SEE FIGURE 4)
NOTE: Imo Pump recommends replacement of 0-rings when these parts are disturbed from their original
installed positions.
NOTE: Prior to pump re-assembly, check each part and remove any burrs then wipe all parts with lubricating
oil. Rotate power rotor frequently during assembly to assure rotational clearances.
1. Clean all parts prior to assembly.
2. Install bearing (216) on power rotor (311) with truarc rings (217). Be sure to press only on inner race
when installing bearing.
3. Install power rotor assembly (311) in inboard cover (204).
4. Install ball bearing retainer (222) and four cap screws (223). Torque Cap Screws (223) to value on
assembly.
5. Lubricate the housing (201) pilots with a light oil or hydraulic fluid and install new O-ring (409) against
shoulders of housing (201).
6. Lubricate the thread section of the power rotor (311) and install housing (201) on inboard cover (204).
7. Lubricate idler rotors (314) with light oil or hydraulic fluid and screw into housing (201).
8. Install inlet head (202) using cap screws (203) and lock washers (207). Torque cap screws (203) to
value shown on assembly drawing.
9. Turn power rotor (311) by hand. Rotor should turn freely.
10. Install key (213) in rotor keyway.
11. Install O-Ring (432) on motor front cover.
12. Install pump into motor with hex bolts (205). Be sure key (213) in pump shaft engages keyway in
motor shaft. Torque bolts per values on assembly drawing (Figure 4).
WARNING
After Assembly and prior to testing, reinstalling or operating unit, perform a High
Potential test per NEMA MG1-1993 Section 1, Part 3.
4

Fi
g
ure 4
5

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CIRCOR
1710 Airport Road
PO Box 5020
Monroe, NC USA
28111.5020
7HO: +1. 877.853.7867
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