4 in. Stainless Steel Flanged 350 psi Backflow Preventer

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Zurn Wilkins

Model 450STDA 4 in. Stainless Steel Flanged 350 psi Backflow Preventer

This product requires certification to purchase.
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You last purchased this on
 
Zurn Wilkins

Model 450STDA 4 in. Stainless Steel Flanged 350 psi Backflow Preventer

  • Fast #
  • Part #W450STDAP
  • Item #7566939
  • Manufacturer Part #4-450STDA
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Product Details

  • Smaller footprint for direct drop-in replacement
  • Time-tested check and relief valve components ensure easy maintenance and more water system uptime
  • Superior stainless steel body to resist corrosion and extend the product life
  • Butterfly Valves (Optional)
  • Available in sizes 4"-10"
  • OS&Y Gate Valves (Standard)
  • Can utilize the new backflow setter which eliminates the need for concrete thrust blocks, allowing for easier installation and lower cost
  • Patented compound checks provide ultra-low pressure drop as documented by approval authorities, reducing the need for a booster pump
  • Requires Certification

  • Lead Law Compliant

Documents

WARRANTY

Specifications

ANSI:
ANSI 61
ASSE Standards:
ASSE 1048
ASTM:
ASTM A-276
AWWA:
AWWA C-510, AWWA C-550
Application:
Fire Protection, Portable Water Lines
Collection:
Model 450STDA
End Connection 1:
Flanged
End Connection 2:
Flanged
End Connections:
Flanged
FM Approved:
Yes
Height:
22-1/4 in
IAPMO Listed -:
No
Installation Type:
Outdoor
Lead Law Compliance Level:
Lead Law Compliant and Certified
Lead Law Compliant:
Yes
Length:
35-1/8 in
Material:
Stainless Steel
Material Type:
304L
Maximum Temperature:
140
Minimum Temperature:
33
NSF:
NSF 61
NSF Certified:
Yes
Number of Handles:
Two Handle
Pressure - High:
175
Pressure - Low:
20
Pressure - Maximum:
350 psi
Recommended Valve Application:
Water
UL Listed:
Yes
Valve Body Style:
Vertical
Valve Disc Material:
EPDM
Valve Operator:
Wheel Handle
Valve Port Opening:
Full Port
Valve Seat Material:
Noryl
Valve Size:
4 in
Valve Type:
Double Check Detector Assembly
Weight:
349 lb
Width:
32 in