Frame-mounted units, Safety instructions, Description and specifications – Xylem IM007 R05 Models 3642/3742 User Manual

Page 3: Installation, Engineering data

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Starts per Hour: 20 - Evenly distributed

INSTALLATION

Location:
Locate pump as near liquid source as practical; below

level of liquid for repriming capability.
Allow adequate space for servicing and ventilation.

Protect the unit from weather and water damage due

to rain, flooding or freezing temperatures.

Close - Coupled Units
Units may be installed horizontally, inclined or verti-

cally with the motor above the pump.

NOTICE: DO NOT INSTALL WITH MOTOR BELOW

PUMP. ANY LEAKAGE OR CONDENSATION

WILL AFFECT THE MOTOR.

Foundation:
A flat and substantial foundation surface MUST be

provided to avoid distortion and/or strain when

tightening the foundation bolts. A rubber mounting is

acceptable to reduce noise or excessive vibration.
Tighten motor hold-down bolts BEFORE connecting

piping to pump.

Frame-Mounted Units:

Figure 1

Bedplate must be grouted to a foundation with solid

footing. Refer to Figure 1.
Place unit in position on wedges located at four

points, two below approximate center of driver and

two below approximate center of pump. Adjust wedg-

es to level unit. Level or plumb suction and discharge

flanges.
Make sure bedplate is not distorted and final coupling

alignment can be made within the limits of movement

of motor and by shimming, if necessary.
Tighten foundation bolts finger tight and build dam

around foundation. Pour grout under bedplate mak-

SAFETY INSTRUCTIONS

TO AVOID SERIOUS OR FATAL PERSONAL

INJURY OR MAJOR PROPERTY DAMAGE, READ

AND FOLLOW ALL SAFETY INSTRUCTIONS IN

MANUAL AND ON PUMP.
THIS MANUAL IS INTENDED TO ASSIST IN THE

INSTALLATION AND OPERATION OF THIS UNIT

AND MUST BE KEPT WITH THE PUMP.

This is a SAFETY ALERT SYMBOL.

When you see this symbol on the pump

or in the manual, look for one of the

following signal words and be alert

to the potential for personal injury or

property damage.
Warns of hazards that WILL cause

serious personal injury, death or major

property damage.
Warns of hazards that CAN cause

serious personal injury, death or major

property damage.
Warns of hazards that CAN cause per-

sonal injury or property damage.

NOTICE: INDICATES SPECIAL INSTRUCTIONS

WHICH ARE VERY IMPORTANT AND

MUST BE FOLLOWED.

THOROUGHLY REVIEW ALL INSTRUCTIONS

AND WARNINGS PRIOR TO PERFORMING ANY

WORK ON THIS PUMP.
MAINTAIN ALL SAFETY DECALS.

UNIT NOT DESIGNED FOR USE

WITH HAZARDOUS LIQUIDS OR

FLAMMABLE GASES. THESE

FLUIDS MAY BE PRESENT IN

CONTAINMENT AREAS.

DESCRIPTION and SPECIFICATIONS:

The 3642 (closed-coupled) and 3742 (frame-mount-

ed) are single stage, end suction, centrifugal pumps

for water circulation, booster service, liquid transfer,

spraying systems, jockey pump and general service

pumping. Pumps are available in three different ma-

terials of construction: all iron, bronze-fitted and all

bronze.
Pump impellers are enclosed design for high efficien-

cy, threaded directly on the motor shaft.
Close-coupled units have NEMA standard frame mo-

tors with C-face mounting and threaded shaft exten-

sions. Frame mounted units can be coupled to motors

through a spacer coupling, or belt driven.

ENGINEERING DATA

Maximum Liquid Temperature:

212º F (100º C) – standard seal

250º F (120º C) – Optional high temp. seal

Maximum Working Pressure: 125 psi

3642/3742

Model

Suction

Discharge

1 x 1¼ - 5

1¼” NPT

1” NPT

1¼ x 1½ - 5

1½” NPT

1¼” NPT

DANGER

WARNING

CAUTION

WARNING

Hazardous fluids

can cause fire,

burns or death.

Sleeve

Washer

Lug

Top of foundation –

clean and wet down

Grout

Leveling wedges or shims – left in place

Base

Grout Hole

1

4

”(6.35 mm)

Finished Grouting

1

2

to

3

4

(12.7 to 19 mm)

Allowance for

Leveling

Wood

Frame

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