4 in. 304 Stainless Steel Grooved 175 psi Backflow Preventer

This product has been replaced by

4 IN SS REDUCED PRESSURE ZONE ASSEMBLY BACKFLOW PREVENTER NRS SHUTOFF VALVES CAST IRON STRAINER BACKFLOW FLOOD SENSOR
Watts 4 IN SS REDUCED PRESSURE ZONE ASSEMBLY BACKFLOW PREVENTER NRS SHUTOFF VALVES CAST IRON STRAINER BACKFLOW FLOOD SENSOR
Manufacturer Part #F111827
You last purchased this on
 
Watts

Series 957 4 in. 304 Stainless Steel Grooved 175 psi Backflow Preventer

This product requires certification to purchase.
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Watts Stainless Steel 304 Stainless Steel Grooved 175 psi Backflow Preventer
You last purchased this on
 

This product has been replaced by

4 IN SS REDUCED PRESSURE ZONE ASSEMBLY BACKFLOW PREVENTER NRS SHUTOFF VALVES CAST IRON STRAINER BACKFLOW FLOOD SENSOR
Watts 4 IN SS REDUCED PRESSURE ZONE ASSEMBLY BACKFLOW PREVENTER NRS SHUTOFF VALVES CAST IRON STRAINER BACKFLOW FLOOD SENSOR
Manufacturer Part #F111827
Watts

Series 957 4 in. 304 Stainless Steel Grooved 175 psi Backflow Preventer

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  • Part #W957NRSSP
  • Item #2148177
  • Manufacturer Part #0111827
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This product requires certification to purchase.
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Product Details

  • Non-rising stem, resilient seated gate valves
  • Quick access sleeve
  • 304 (Schedule 40) stainless steel housing and sleeve furnished with an iron strainer
  • Groove couplings for ease of installation and pipe alignment
  • Compact design allows small enclosures to be used
  • Patented torsion spring check modules for ease of serviceability
  • Bottom mounted cast stainless steel relief valve
  • Replaceable check disc rubber
  • The maximum working pressure is 175 PSI (12.06 BAR)
  • Requires Certification

  • Lead Law Compliant

Specifications

ADA Compliant:
No
ANSI:
ANSI 61 Annex G
ASSE Standards:
ASSE 1013
BAA Compliant:
Yes
CSA Certified:
CSA B64.4
Collection:
Series 957
Color Finish Category:
Stainless Steel
Color Finish Name:
Stainless Steel
Depth:
48 in
End Connection 1:
Grooved
End Connection 2:
Grooved
End Connections:
Grooved
FM Approved:
Yes
Fitting Size 1:
4 in
Fitting Size 2:
4 in
Fitting Sizes:
4 in
Height:
31 in
IAPMO Listed -:
No
Lead Law Compliance Level:
Lead Law Compliant and Certified
Lead Law Compliant:
Yes
Length:
33-3/4 in
Material:
Stainless Steel
Material Type:
304
Maximum Temperature:
110
Minimum Temperature:
33
NSF:
NSF 61 Annex G
NSF Certified:
Yes
Pressure - Maximum:
175 psi
UL Listed:
No
Valve Body Material:
Bronze
Valve Body Style:
Inline
Valve Disc Material:
Silicone
Valve Seat Material:
Engineered Plastic
Valve Size:
4 in
Valve Stem:
Non-rising
Valve Type:
Backflow Preventer
Weight:
399 lb
Width:
25 in