Check Valves

Spears Ball Check Valves: Automatic - PVC \ FKM
Spears Ball Check Valves: Automatic - PVC \ FKM
SKU
4531-005SR
Pipe Size
1/2 IN
Connection Type
SS Reinforced FPT
Seal Material
FKM
Price
$85.31
SKU
4531-007SR
Pipe Size
3/4 IN
Connection Type
SS Reinforced FPT
Seal Material
FKM
Price
$97.21
SKU
4531-010SR
Pipe Size
1 IN
Connection Type
SS Reinforced FPT
Seal Material
FKM
Price
$121.19
SKU
4531-012SR
Pipe Size
1 1/4 IN
Connection Type
SS Reinforced FPT
Seal Material
FKM
Price
$180.01
SKU
4531-015SR
Pipe Size
1 1/2 IN
Connection Type
SS Reinforced FPT
Seal Material
FKM
Price
$207.88
SKU
4531-020SR
Pipe Size
2 IN
Connection Type
SS Reinforced FPT
Seal Material
FKM
Price
$281.08
SKU
4531-025SR
Pipe Size
2 1/2 IN
Connection Type
SS Reinforced FPT
Seal Material
FKM
Price
$655.65
SKU
4531-030SR
Pipe Size
3 IN
Connection Type
SS Reinforced FPT
Seal Material
FKM
Price
$868.65
SKU
4531-040SR
Pipe Size
4 IN
Connection Type
SS Reinforced FPT
Seal Material
FKM
Price
$1,194.64
SKU
4532-025
Pipe Size
2 1/2 IN
Connection Type
Socket
Seal Material
FKM
Price
$623.71
SKU
4532-030
Pipe Size
3 IN
Connection Type
Socket
Seal Material
FKM
Price
$835.40
SKU
4532-040
Pipe Size
4 IN
Connection Type
Socket
Seal Material
FKM
Price
$1,157.35
SKU
4539-005
Pipe Size
1/2 IN
Connection Type
Dual Ends
Seal Material
FKM
Price
$83.83
SKU
4539-007
Pipe Size
3/4 IN
Connection Type
Dual Ends
Seal Material
FKM
Price
$93.60
SKU
4539-010
Pipe Size
1 IN
Connection Type
Dual Ends
Seal Material
FKM
Price
$117.59
SKU
4539-012
Pipe Size
1 1/4 IN
Connection Type
Dual Ends
Seal Material
FKM
Price
$172.88
SKU
4539-015
Pipe Size
1 1/2 IN
Connection Type
Dual Ends
Seal Material
FKM
Price
$196.36
SKU
4539-020
Pipe Size
2 IN
Connection Type
Dual Ends
Seal Material
FKM
Price
$268.58
Spears Butterfly Check Valves: Automatic - PVC \ EPDM
Butterfly Check Valves: Automatic - PVC \ EPDM

Design Features
This multi-purpose check valve provides an extremely low profile and very quick response to back flow without slamming. The special design requires no more space then a piece of pipe, and incorporates a flexible elastomer seal for long life, and is suitable for mounting in any position for greater versatility.
Technical Information
2" through 8" sizes are rated for 150 psi @ 73°F, 10" and 12" sizes are rated for 100 psi @ 73°F. As a general guideline, opening and closing pressures will range from .2 to .5 psi for horizontal applications. Opening pressures tend to decrease in large size valves. Valves installed in vertical up-flow applications will require slightly higher pressures.
Features
• PVC or CPVC construction - no metal components     â€¢ Quick response shut-off in any position     â€¢ Field replaceable Flex-Seal - EPDM or Viton®
• Assembled with silicon-free, water soluble lubricants     â€¢ Available with either spigot, flanged, grooved pipe or male threaded ends
• Sizes now available to 24" pipe size - call for information