Product Brochure

• 15-3/4" x 16" Structural foam sump pit
(perforated) and structural foam cover
• Automatic sump pump, 115V, with 10'
power cord
• 24' Flexible hose kit, polyethlene 1-1/4"
(Model DHK-24)
• Check valve threads directly into pump
discharge
Note: System is unassembled
Add "-2" to CSP-237 model for a 25' cord. Example: CSP-237-2
See specific 230-Series, 250-Series or 450-Series literature for complete pump specifications.
5
10
15
20
25
30
35
40
0
0 10 20 30 40 50 60
0 37.9 75.7 113.6 151.4 189.3 227.1
US Gallons Per Minute
Total Head in Feet
Total Head in Meters
12.2
0
3.0
4.6
1.5
6.1
7.6
9.1
10.7
Liters Per Minute
CSP-457
CSP-237
CSP-257
CSP-Series
Kit Contents
Models
Dimensional Data
Liberty Pumps - 7000 Apple Tree Avenue - Bergen, New York 14416
Phone [phone] - Fax [phone] - www.LibertyPumps.com
Copyright © Liberty Pumps, Inc. 2020 All rights reserved. LLIT006659-R10/20E
Specifications subject to change without notice.
MODEL HP VOLT PUMP PUMP MATERIAL SYSTEM WEIGHT
CSP-237 1/3 115 237 Poly/aluminum 23 lbs
CSP-457 1/2 115 457 Poly/aluminum 25 lbs
CSP-257 1/3 115 257 Cast iron 30 lbs
Performance Curve
Max Fluid Temperature
140°F (60°C) Intermittent
60 Hz
349mm
13.8in
CORD
GROMMET
1-1/2"
DISCHARGE
402mm
15.8in
403mm
15.9in
(40) 1/2" PERFORATIONS
349mm
13.8in
CORD
GROMMET
1-1/2"
DISCHARGE
402mm
15.8in
403mm
15.9in
(40) 1/2" PERFORATIONS
Top View
Side View