Product Overview

Industrial PVC Backwater Valves
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needed. Excellent for use in sanitary or storm sewer drainage systems to prevent waste back up due to inadequate drainage, for balancing
multi-level ponds, aquaculture features or storage tank systems, and many other applications. Spears
®
Backwater Valve has been
engineered for improved function and easier service, especially in buried service with use of optional Service-
A
ccess Extension available
either preassembled with valve or as an add-on kit.
z
Replaceable internal flapper assembly with EPDM Seat.
z
Service-Access Extension available either preassembled with valve, as an add-on kit, or as valve & extension kit components
with user supplied pipe.
z
Direct Connection to ASTM D 2665 PVC DWV or other IPS size pipe. Spears
®
fabricated IPS x Sewer Adapters or DWV x
Sewer & Drain Adapter Bushings are available for connection to ASTM D 3034 & ASTM D 2729 Sewer pipe.
z
Pressure Rated to 43 psi (100 feet of head) @ 73°F (23°C).
z
All extension kits can be cut shorter for custom application.
z
Conforms to ASME/ANSI A112.14.1 for Backwater Valves.
¹
PVC Backwater Valves
Soc x Soc - Valve Only
Part Number Size
Std
P
k
Mstr
Ctn
Disc
Code
Price
Each
S275P 2 1 12 055 56.10
S375P 3 2 0 055 56.21
S475P 4 1 0 055 62.27
S675P 6 1 0 055 265.30
PVC Backwater Valves with Extension Kit to
Premade Length
Soc x Soc - Assembled with Extension
Part Number Size
Std
P
k
Mstr
Ctn
Disc
Code
Price
Each
S275P-120
1
2 x 12HT 1 0 055 169.21
S275P-160
1
2 x 16HT 1 0 055 182.01
S275P-200
1
2 x 20HT 1 0 055 194.80
S275P-240
1
2 x 24HT 1 0 055 207.60
S275P-360
1
2 x 36HT 1 0 055 218.04
S275P-480
1
2 x 48HT 1 0 055 239.64
S375P-120
1
3 x 12HT 1 0 055 169.21
S375P-160
1
3 x 16HT 1 0 055 182.01
S375P-200
1
3 x 20HT 1 0 055 194.80
S375P-240
1
3 x 24HT 1 0 055 207.60
S375P-360
1
3 x 36HT 1 0 055 218.04
S375P-480
1
3 x 48HT 1 0 055 239.64
S475P-120
1
4 x 12HT 1 0 055 219.79
S475P-160
1
4 x 16HT 1 0 055 237.11
S475P-200
1
4 x 20HT 1 0 055 252.89
S475P-240
1
4 x 24HT 1 0 055 269.66
S475P-360
1
4 x 36HT 1 0 055 283.20
S475P-480
1
4 x 48HT 1 0 055 311.22
S675P-120
1
6 x 12HT 1 0 055 461.53
S675P-160
1
6 x 16HT 1 0 055 497.93
S675P-200
1
6 x 20HT 1 0 055 531.07
S675P-240
1
6 x 24HT 1 0 055 566.35
S675P-360
1
6 x 36HT 1 0 055 594.74
S675P-480
1
6 x 48HT 1 0 055 653.55
¹ - Size designates nominal valve size x extension height (HT-top of valve to top of
extension, inches
)
NOT FOR USE WITH COMPRESSED AIR OR GAS
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®
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®
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