EBARA 3U, 3UB User Manual

End Suction Centrifugal

EBARA Fluid Handling

EBARA International Corporation

Operating Instructions, Installation & Maintenance Manual

Models 3U / 3UB

EBARA End Suction Centrifugal 3U / 3UB

Operating, Installation, and Maintenance

EBARA Fluid Handling

www.pumpsebara.com

(t) 803 327-5005 • (f) 803 327-5097

rev. 02/09

IMPORTANT SAFETY INSTRUCTIONS

Rules for Safe Installation and Operation

Installation

Contents

Section Page

Safety Specifications and Installation 3 3U / 3UB Selection Chart 5 3U / 3UB Specifications 6 3U / 3UB Type 1 Sectional View and Parts List 7 3U(B) 65 Type 3 Sectional View and Parts List 8 Installation Instructions 9 Maintenance and Service 10 3U / 3UB Assembly – 3HP - 15HP 11 3U / 3UB Assembly – 20HP - 30HP 12 Troubleshooting Checklist and Maintenance Information 13

1. Read these rules and instructions carefully. Failure to follow them could cause serious bodily injury and/or property damage.

2. Check your local codes before installing. You must comply with their rules

3. For maximum safety, this product should be connected to a grounded circuit equipped with a ground fault interrupter device.

4. Before installing this product, have the electrical circuit checked by an electrician to make sure it is properly grounded.

5. Before installing or servicing your pump, BE CERTAIN pump power source is disconnected.

6. Make sure the line voltage and frequency of the electrical current supply agrees with the motor wiring. If motor is dual voltage type, BE SURE it is wired correctly for your power supply.

7. Complete pump and piping system MUST be protected against below freezing temperature. Failure to do so could cause severe damage

and voids the Warranty.

8. Avoid system pressures that may exceed one and a half times the operating point selected from the pump performance curve.

9. Do not run your pump dry. If it is, there will be damage to the pump seal.

PACKAGE CONTENTS

1. Be sure all parts have been furnished and that nothing has been damaged in shipment.

2. The catalog lists all parts included with package. A packing list packed with pump, also lists contents.

3. OPEN PACKAGES AND MAKE THIS CHECK BEFORE GOING ON JOB.

PIPING – Pipes must line up and not be forced into position by unions. Piping should be independently supported near

the

pump so that no strain will be placed on the pump casing. Where any noise is objectionable, pump should be insulated

from the piping with rubber connections. Always keep pipe size as large as possible and use a minimum of fittings to reduce friction losses.

SUCTION PIPING – Suction pipe should be direct and as short as possible. It should be at least one size larger than suction inlet tapping and should have a minimum of elbows and fittings (5 to 6 pipe diameters of straight pipe before inlet is recommended). The piping should be laid out so that it slopes upward to pump without dips or high points so that air pockets are eliminated. The highest point in the suction piping should be the pump inlet except where liquid flows to the pump inlet under pressure.

The suction pipe must be tight and free of air leaks or pump will not operate properly.

WARNING

EBARA End Suction Centrifugal 3U / 3UB

Operating, Installation, and Maintenance

EBARA Fluid Handling

www.pumpsebara.com

(t) 803 327-5005 • (f) 803 327-5097

rev. 02/09

DISCHARGE PIPING – Discharge piping should never be smaller than pump tapping and should preferably be one size larger. A gate valve should always be installed in discharge line for throttling if capacity is not correct. To protect the pump from water hammer and to prevent backflow, a check valve should be installed in the discharge line between the pump and gate valve.

ELECTRICAL CONNECTIONS – Be sure motor wiring is connected for voltage being used. Unit should be connected to a separate circuit. A fused disconnect switch or circuit breaker must be used in this circuit. Wire of sufficient size should be used to keep voltage drop to a maximum of 5%.

Single phase motors have built-in overload protection. Flexible metallic conduit should be used to protect the motor leads.

PRIMING – The pump must be primed before starting. The pump casing and suction piping must be filled with water before starting motor. When water is poured into pump to prime, remove all air before starting motor.

STARTING – When the pump is up to operating speed, open the discharge valve to obtain desired capacity or pressure.

WARNING! DO NOT ALLOW THE PUMP TO RUN WITH THE DISCHARGE VALVE TIGHTLY CLOSED. IF THE PUMP RUNS FOR AN EXTENDED PERIOD OF TIME WITHOUT LIQUID BEING DISCHARGED, THE LIQUID IN THE PUMP CASE CAN GET EXTREMELY HOT CAUSING SEVERE DAMAGE TO THE PUMP AND POSSIBLY CAUSE INJURY TO PEOPLE.

ROTATION – All single phase motors are single rotation and leave factory with proper rotation. Three phase motors should be checked to ensure proper rotation

FREEZING – Care should be taken to prevent the pump from freezing during cold weather. It may be necessary, when

there

is any possibility of this, to drain the pump casing when not in operation. Drain by removing the pipe plug in the bottom

of the

casing.

ROTARY SEAL – PRO STEEL pumps are fitted only with rotary seal. This seal is recommended for LIQUIDS free from abrasives.

LOCATION OF UNIT – The pump should be installed as near to the liquid source as is practical so that the static suction head (vertical distance from the center line of the pump to water level) is maximized, and so that a short, direct suction pipe may be used. The capacity of a centrifugal pump is reduced when the unit is operated under a high suction lift. The piping should be as free from turns and bends as possible, as elbows and fittings greatly increase friction loss. Place the unit so that it is readily accessible for service and maintenance and on a solid foundation, which provides a rigid and vibration-free support. Protect the pump against flooding and excess moisture.

Rules for Safe Installation and Operation

(continued)

EBARA End Suction Centrifugal 3U / 3UB

Operating, Installation, and Maintenance

EBARA Fluid Handling

www.pumpsebara.com

(t) 803 327-5005 • (f) 803 327-5097

rev. 02/09

Model 3U / 3UB Selection chart Synchronous Speed 3450 RPM

0.1 0.2 0.3 0.4 0.5 0.6 0.8 1.0 1.5

100M

300

200

150

100

20 30 40 50 60 80 100 150 200 300 400 600 700

/MIN

CAPACITY IN GPM

TOTAL HEAD

Three phase motor only

50-160 10HP

40-160 7½HP

32-200 7½HP

32-125-3HP

50-125 7½HP

40-125A 5HP

50-125-1 10HP

40-125B 5HP

*50-160-1 15HP

*40-200A 15HP

40-160-1 10HP

50-160 10HP

32-160A-5HP

32-160B-5HP

32-200-1-10HP

*40-200B-15HP

40-160 7½HP

1. 3U65-125-7.5HP

2. 3U65-125-10HP

3. 3U65-160-10HP

4. 3U65-160-15HP*

5. 3U65-160-20

HP*

6. 3U65-160-25

HP*

7. 3U65-200-20HP*

8. 3U65-200-25

HP*

9. 3U65-200-30HP*

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