Piping; Duroflow Inlet And Discharge Connectors; Alignment, Belt Drive; Belt Drive Alignment - Gardner Denver DuroFlow 45 Series Parts List Operating And Service Manual

Driver Location -- To properly balance the air load
stress on the blower drive shaft, locate the driver on the
inlet side for a vertical mounted blower and on the shaft
side for a horizontal mounted blower.
Belt Drive Alignment -- Belt drives must be carefully
aligned, with the motor and blower sheaves parallel to
each other and in the same plane. Belt tension should
be carefully adjusted according to the belt manufactur-
er's recommendations using a Tension Tester.
Overtightening belts produces heavy
bearing loads and leads to unwarrant-
able premature failure.
On direct drive blowers, align the couplings so that the
offset and angular misalignment does not exceed .003"
total indicator reading (TIR).
according to manufacturer's specification. With factory
installed drives, proper alignment has been established
before shipment. During shipping, handling and instal-
lation, it is likely that the alignment has been disturbed
and final adjustment must be made before start--up.

PIPING

DuroFlow 45 series, 4504 through 4512 blowers, can
accept a variety of inlet and discharge connectors.
DuroFlow 4" Line Size
Model Connector
(Short)
4504 N/A
4506 DF137356
* 4509 DF138987
4512 N/A
ALL CONNECTORS HAVE FEMALE THREADED CONNECTIONS.
* Use 5" connectors above 3000 RPM on pressure service to keep line losses to a minimum.
Lubricate coupling

DUROFLOW INLET AND DISCHARGE CONNECTORS

TWO CONNECTIONS REQUIRED FOR EACH BLOWER
NOTE: CONNECTORS ARE REUSABLE
CONNECTOR PART NUMBER
4" Line Size 5" Line Size
Connector Connector
(Long)
DF141575
DF137357
N/A
N/A
FIGURE 2- - 2 - - INLET AND DISCHARGE CONNECTORS
D- -9- -611
Refer to FIGURE 2--2, below, for a listing of available
connectors. 4504 through 4512 blowers are shipped
without inlet and discharge connectors. Contact your
DuroFlow Distributor to order connectors.
The 4518 Series DuroFlow blower has flat face inlet
and discharge flanges with ANSI 125 lb. bolt patterns.
When installing the blower, avoid subjecting the inlet
and discharge connections to strains caused by
misalignment of the connecting pipes. Never allow the
blower to carry the weight of the pipe.
Piping strain and misalignment stress will distort the
blower during operation, resulting in loss of critical
internal clearances. Loss of internal clearances will
result in serious machine damage and premature,
unwarrantable blower failure.
Whenever possible, install a spool or sleeve--type
expansion joint between the blower and the piping.
Where a flexible connection is not possible, the weight
of the rigid connection and piping must be separately
supported, and thermal pipe growth must be accom-
modated.
Thoroughly clean all system piping
internally before connecting to the
blower.
5" Line Size
Connector
(Short) (Long)
N/A N/A
N/A N/A
DF149559 DF137346
N/A N/A
Page 9
6" Line Size 6" Line Size
Connector Connector
(Short) (Long)
N/A N/A
N/A N/A
N/A N/A
DF141748 DF137344