4 in. 304L Stainless Steel Flanged 350 psi Backflow Preventer
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Zurn Wilkins
475ST 4 in. 304L Stainless Steel Flanged 350 psi Backflow Preventer
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Purchase history
Zurn Wilkins
475ST
4 in. 304L Stainless Steel Flanged 350 psi Backflow Preventer
4-475ST
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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
- NRS Gate Valve Shut-offs (Standard)
- Available as a 475STV for RP protection in a vertical upward flow path
- Available in sizes 4"-10"
- 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
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Lead Law Compliant
-
ADA Compliant
Recommended Accessories
Specifications
- ADA Compliant:
- Yes
- ANSI:
- ANSI 61
- ASSE Standards:
- ASSE 1013
- AWWA:
- AWWA C-511
- Application:
- Waterworks
- CSA Certified:
- CSA
- Coating:
- Electrostatic Epoxy
- Collection:
- 475ST
- End Connection 1:
- Flanged
- End Connection 2:
- Flanged
- End Connections:
- Flanged
- FM Approved:
- Yes
- Fitting Size 1:
- 4 in
- Fitting Size 2:
- 4 in
- Fitting Sizes:
- 4 in
- Height:
- 38 in
- IAPMO Listed -:
- No
- Installation Type:
- Horizontal
- Lead Law Compliance Level:
- Lead Law Compliant and Certified
- Lead Law Compliant:
- Yes
- Length:
- 35-1/8 in
- Material:
- Ductile Iron, Stainless Steel, Rubber, Plastic
- Material Type:
- 300, Buna-N, Noryl®
- Maximum Temperature:
- 140
- Minimum Temperature:
- 33
- NSF Certified:
- Yes
- Number of Handles:
- Two Handle
- Pressure - High:
- 175
- Pressure - Maximum:
- 350 psi
- Recommended Valve Application:
- Water
- Size:
- 4 in
- Temperature Range:
- Up to 140 Deg F
- UL Listed:
- Yes
- Valve Body Material:
- Ductile Iron
- Valve Body Style:
- Vertical
- Valve Disc Material:
- EPDM
- Valve Material:
- Stainless Steel
- Valve Operator:
- Hand Wheel
- Valve Seat Material:
- Noryl
- Valve Size:
- 4 in
- Valve Stem:
- Non-rising
- Valve Type:
- Reduced Pressure Principle Assembly
- Weight:
- 342 lb
- Width:
- 32 in
- cUPC Certified:
- No