CANNED MOTOR PUMPS

Teikoku Model R

Refrigeration Pumps

10-08-2013

CANNED MOTOR PUMPS Teikoku Pump Internals

•Centrifugal Pump

•Single Stage

•Enclosed Impeller

•Stator & Rotor “Canned”

•True Secondary

Containment

•Product Lubricated &

Cooled Motor

•Carbon Sleeve Bearings

•304 SS w/ Hard Chrome

Sleeves

Thrust Collars

10-08-2013

CANNED MOTOR PUMPS Teikoku Type R

Reverse Circulation

10-08-2013

CANNED MOTOR PUMPS Restriction Orifice

Rear Bearing Housing

10-08-2013

CANNED MOTOR PUMPS Teikoku Type R

Reverse Circulation

10-08-2013

CANNED MOTOR PUMPS Teikoku Type R & RW

Reverse Circulation Piping

Note 1: Piping must be continuously rising

Note 2: Piping must return to vapor zone

Note 3: No check valves allowed in piping

Note 4: Each pump must have separate pipe

10-08-2013

CANNED MOTOR PUMPS Teikoku Type R & RW

Reverse Circulation Piping

10-08-2013

CANNED MOTOR PUMPS Teikoku Alternatives

Reverse Circulation Piping

10-08-2013

CANNED MOTOR PUMPS Teikoku Exploded View

10-08-2013

CANNED MOTOR PUMPS Sleeve Bearing Details

Bearing With Spiral Grooves Only

Bearing With Spiral & Straight Grooves

Refer to pump specific cross sectional drawing for correct Sleeve Bearing type and location

10-08-2013

CANNED MOTOR PUMPS Teikoku Type R

Cross Sectional Drawing

10-08-2013

CANNED MOTOR PUMPS

Teikoku Vertical

Type R Cross Sectional Drawing

10-08-2013

CANNED MOTOR PUMPS Teikoku Features

Precision Liquid Film Bearings

Lubrication Provided by Refrigerant

Liquid Cooled Canned Motor

True Secondary Containment

Direction of Rotation Indication

TRG Bearing Wear Monitor

10-08-2013

CANNED MOTOR PUMPS Teikoku Rotary Guardian

(TRG)

Pump Mounted Meter

10-08-2013

CANNED MOTOR PUMPS Teikoku Rotary Guardian

(TRG)

10-08-2013

CANNED MOTOR PUMPS Teikoku TRG

Volt Meter Scale

10-08-2013

CANNED MOTOR PUMPS

GREEN

Normal Operation

YELLOW or RED

Stop Pump and Check for Possible Causes

Single Phase

Unbalanced Input Power

Loose Connections

PEGGED RED

Pump Rotating in Reverse Direction

Pinched TRG Wires

TCO Wires Connected to TRG Terminals

Initial Readings

Teikoku Rotary Guardian (TRG)

10-08-2013

CANNED MOTOR PUMPS

GREEN

Normal Operation

YELLOW

Schedule Pump for Maintenance

Recommended to Swap to Spare Pump

RED

Stop Pump and Remove for Maintenance

Never Operate Pump with TRG in RED Zone

Normal Operating Readings

Teikoku Rotary Guardian (TRG)

10-08-2013

CANNED MOTOR PUMPS

Maintenance

Disassembly and

Reassembly

10-08-2013

CANNED MOTOR PUMPS Checks Prior to Disassembly

Has the motor been meggered?

Has the pump been decontaminated?

Are you familiar with the pumped fluid?

Has the Stator Can been breached?

Is your work area clean?

Do you have the required tools?

10-08-2013

CANNED MOTOR PUMPS Unbolt Pump Case / Volute

10-08-2013

CANNED MOTOR PUMPS Remove Pump Case / Volute

10-08-2013

CANNED MOTOR PUMPS Remove Pump Case Gasket

10-08-2013

CANNED MOTOR PUMPS Bend Down Impeller Lock Tab

10-08-2013

CANNED MOTOR PUMPS Remove Impeller Lock Bolt

10-08-2013

CANNED MOTOR PUMPS Slide Impeller Off Shaft

10-08-2013

CANNED MOTOR PUMPS Remove Key

10-08-2013

CANNED MOTOR PUMPS Remove Adjusting Washers

(If Required)

Measure and Record Quantity and Thickness

10-08-2013

CANNED MOTOR PUMPS Unbolt

Front Bearing Housing

10-08-2013

CANNED MOTOR PUMPS Loosen

Front Bearing Housing

Jack Bolt Holes Facilitate Removal

03-14-2011

CANNED MOTOR PUMPS Remove

Front Bearing Housing

Warning: Rotor & Shaft Sleeve may slide out

10-08-2013

CANNED MOTOR PUMPS Unbolt

Rear Bearing Housing

10-08-2013

CANNED MOTOR PUMPS Remove

Rear Bearing Housing

10-08-2013

CANNED MOTOR PUMPS Remove Gasket

10-08-2013

CANNED MOTOR PUMPS Carefully Remove Rotor Assembly

CAUTION: Support Rotor Assembly Do Not Allow Rotor Assembly to Drop and Hit Stator Liner

10-08-2013

CANNED MOTOR PUMPS Visual Inspection

Check Filter & Circulation Pipe (If Required)

Check Stator Liner for contact marks/wear

Check Rotor Liner for contact marks/wear

Check for wear, scratches & scoring on:

Shaft Sleeves

Thrust Collars

Bearings – Inside Bore

Bearings – Thrust Face

10-08-2013

CANNED MOTOR PUMPS Inspect & Record

Bearing Wear

10-08-2013

CANNED MOTOR PUMPS Bend Down Lock Tab

10-08-2013

CANNED MOTOR PUMPS Remove Rear Lock Bolt

Left Hand Threads

CAUTION: Left Hand Threads

10-08-2013

CANNED MOTOR PUMPS Remove Shaft Sleeves

& Thrust Collars

WARNING: Key/Pin may be loose and fall out unnoticed

10-08-2013

CANNED MOTOR PUMPS Remove Set Screw From

Front & Rear Bearing Housings

10-08-2013

CANNED MOTOR PUMPS Slide Out Bearing From

Front & Rear Bearing Housings Note: Some heat on the bearing housing may be used to assist with the removal of the bearing

10-08-2013

CANNED MOTOR PUMPS Remove Adjusting Washers from

Rear Bearing Housing Only

Measure and Record Thickness and Quantity

10-08-2013

CANNED MOTOR PUMPS Measure & Record Balance Groove

Inside & Outside Diameters

10-08-2013

CANNED MOTOR PUMPS Measure & Record Impeller Rear

Wear Ring Inside & Outside Diameters

10-08-2013

CANNED MOTOR PUMPS Measure & Record Impeller Front

Wear Ring Outside Diameter

10-08-2013

CANNED MOTOR PUMPS Measure & Record Pump Case

Wear Ring Inside Diameter

10-08-2013

CANNED MOTOR PUMPS

Radial

Clearances

Chart

Horizontal

Mount

10-08-2013

CANNED MOTOR PUMPS

Radial

Clearances

Chart

Vertical

Mount

10-08-2013

CANNED MOTOR PUMPS

Reassembly

10-08-2013

CANNED MOTOR PUMPS Pump Reassembly

Insure that work space is clean

Clean & dry all components

Inspect all components

Megger check motor

Check resistance of windings

10-08-2013

CANNED MOTOR PUMPS Sleeve Bearing Details

Bearing With Spiral Grooves Only

Bearing With Spiral & Straight Grooves

Refer to pump specific cross sectional drawing for correct Sleeve Bearing type and location

10-08-2013

CANNED MOTOR PUMPS Install Adjusting Washers Into

Rear Bearing Housing Only

10-08-2013

CANNED MOTOR PUMPS Install Bearing Into

Front & Rear Bearing Housings

Flat washer must be installed as shown

V-Grooves must be located on outside end

10-08-2013

CANNED MOTOR PUMPS Install Set Screw Into

Front & Rear Bearing Housings

Make Sure Bearing Is Seated When Tightening Set Screw

Do not over tighten set screw

10-08-2013