Flexible coupled pumps
Bulletin 178E
 |
End
Suction enclosed impellers |
|
Vertically
split back pull-out casings |
|
1750
RPM and 3450 RPM selections |
|
Leakless
mechanical shaft seals |
|
Centerline
discharge for automatic venting |
|
Steel
or cast iron bases |
|
Standard
NEMA motors |
|
|
Flanged
suction and discharge for easy installation |
|
Applications:
Hot Water Heating Systems
Air Conditioning Systems
Pressure Boosting
Process Circulation
General Pumping |
|
FEATURES:
CASING:
Cast iron construction; tapped for drain, vent cock, and pressure gauge. Suction
and discharge connections are standard ASA flanged type for easier installation.
These pumps are of the back pull-out design to permit removal of the motor and
all rotating parts without breaking the suction and discharge connections.
Casings are centerline discharge for automatic venting when used in the standard
vertical discharge position. Discharge can be field rotated for 90° position
changes.
IMPELLER:
Single piece enclosed bronze casting, fully balanced with the diameter cut for
specific condition points. Cast iron impellers are available for all-iron pumps.
SHAFT:
Alloy steel, of large diameter to insure power transmission with minimum
deflection or vibration. Stainless steel shafts are available as an
option.
SHAFT SLEEVE:
Renewable bronze shaft sleeve prevents contact between the shaft and the liquid
being pumped. Stainless steel shaft sleeves are available as an option.
WEARING RING:
Renewable bronze wearing ring pressed into the pump casing is standard on CKB
models and optional on CCB and CGB models.
MECHANICAL SHAFT SEALS:
Leakless mechanical shaft seals with ceramic and carbon faces, plus stainless
steel components eliminate maintenance and adjustment problems. A copper bypass
line (standard on CGB and CKB models, optional on CCB models) prevents dead-ending
of abrasives in the seal chamber. Non-standard mechanical shaft seals are
available for special operating conditions.
BEARING FRAME:
Single piece cast iron construction for maximum strength and rigidity. Bearings
are sized and spaced to absorb radial and axial loading. Bearings are greased at
the factory prior to shipment, but require periodic greasing in the field.
FLEXIBLE COUPLING:
Precision machined with one-piece load cushion to prevent wear on the metal
jaws. Couplings are sized for long life under the specified load.
MOTORS:
Motors are of standard NEMA drip-proof design in standard frame sizes. Totally enclosed and explosion
proof motors are also available. Motor bearings are factory lubricated and
sealed for long life without field lubrication. Fractional H.P. single phase
motors have built-in overload protection. All other motors should be provided
with magnetic starters.
BASES:
Standard units are furnished with formed steel bases. Cast iron drip-rim bases
are available as an option.
MODIFICATIONS:
Standard pumps are of bronze-fitted construction. Liquid ends can also be
furnished in all-bronze and all-iron construction. Pumps can be furnished in
flexibly coupled style, if preferred.
ACCESSORIES:
Accessory items are available including coupling guards, vibration eliminator
rails, flexible metal hose connections, motor starters, control panels, etc. (NOTE: CCB pump construction may vary slightly from the
standard CGB and CKB pump construction described.)
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Prices
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Consolidated Curves
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Selection Table - 3450 RPM
