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8'' 450 Double Check Valve Assembly With OsAndY Gate Valves
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8'' 450 Double Check Valve Assembly With OsAndY Gate Valves (8-450OSY) by Zurn Industries
The 8'''' 450OSY Double Check Backflow Assembly, with OS&Y gate valves, is utilized in low health hazard applications for protection against both backsiphonage and backpressure of polluted water into the potable water supply. Shaped in the n-Pattern, the Model 450 is ideal for both new and retrofit installations in compact locations. The patented, center-stem guided Compound Check provides low headloss and reliable, superior performance. It also features a convenient single access cover to reduce maintenance downtime. Materials include a corrosion-resistant, epoxy-coated ductile iron body and access covers, and stainless steel fasteners and springs.
Product Specification
Item #
8-450OSY
Dimensions
Additional product details
Vendor Item #
8-450OSY
Plumbing Category
Water Handling
Plumbing Subcategory
Backflow Prevention
Family
Four Hundred Fifty
Bullet10
C-UL® Classified
Bullet5
Lead-free
Bullet6
ASSE® Listed
Bullet7
IAPMO® Listed
Bullet8
AWWA Compliant
Bullet9
UL® Classified
Country
USA
Description
The 8'' 450OSY Double Check Backflow Assembly, with OSandY gate valves, is utilized in low health hazard applications for protection against both back siphonage and backpressure of polluted water into the potable water supply. Shaped in the n-Patte
Height
54
Length
55
Low Lead
Yes
MadeInUSA
Yes
Minimum Order Quantity
1
Prop65
Cancer and Reproductive Harm - www.P65Warnings.ca.gov
SafetyList
UL, C-UL
Ship Weight
890
Shipping Height
55
Shipping Length
48
Shipping Width
55
Spec Sheet
UOM
Each
Weight
962
Width
45
Manufactured By
Zurn Industries
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Item Description


  • Item ID: 4077F6N
  • Width:
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  • Family: Four Hundred Fifty
  • Install Link: Installation Link
  • Prop65: Cancer and Reproductive Harm - www.P65Warnings.ca.gov
  • Spec Sheet: Spec Sheet
  • Standard Plumbing Category: Water Handling
  • Standard Plumbing Subcategory: Backflow Prevention
Item Description


  • Item ID: 407EFJD
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Item Description


  • Item ID: 407HQ2M
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  • Install Link: Installation Link
  • Prop65: Cancer and Reproductive Harm - www.P65Warnings.ca.gov
  • Spec Sheet: Spec Sheet
  • Standard Plumbing Category: Water Handling
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Item Description
The Zurn Wilkins 450ST Stainless Steel n-Pattern Double Check Valve Assembly is ideal for new or direct drop-in replacement, delivering convenience without compromise. Compact and reliable, this double check valve assembly withstands the corrosive effects of water and protects against both backsiphonage and backpressure of polluted water into the potable water supply. The patented AR spool offers flexibility in replacing older models with different lay lengths and maintains agency approvals when installed by the factory.

  • Item ID: 407LRPT
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  • Extra Data: For use with potable water pipes with a 6 in. diameter, OS and Y gate valves, Small, compact footprint allows for direct drop-in replacement, Superior stainless steel body resists corrosion and extends the life of the product
  • Family: Four Hundred Fifty
  • AltImageName1: /ZRN/ZRN10-450ST_1.jpg
  • AltImageName2: /ZRN/ZRN10-450ST_2.jpg
  • AltImagePath1: /ZRN-ZRN10-450ST_1.JPEG
  • AltImagePath2: /ZRN-ZRN10-450ST_2.JPEG
  • Bullet10: Available in sizes 4 in. through 10 in.
  • Bullet5: Time-tested check and relief valve components ensure easy maintenance and more water system uptime
  • Bullet6: Patented compound checks provide ultra-low pressure drop as documented by approval authorities, reducing the need for a booster pump
  • Bullet7: Patented AR spool for drop-in replacements, matching lay-lengths of common n-pattern valves
  • Bullet8: AR spool maintains agency approvals when installed by the factory
  • Bullet9: Backflow setter eliminates the need for concrete thrust blocks, allowing for easier installation and lower cost
  • Country: USA
  • Height: 41.88
  • Install Link: Installation Link
  • Length: 40.81
  • Low Lead: Yes
  • Material: Ductile Iron,Stainless Steel
  • Minimum Order Quantity: 1
  • Prop65: Cancer and Reproductive Harm - www.P65Warnings.ca.gov
  • Shipping Height: 40.75
  • Shipping Length: 41
  • Shipping Width: 33
  • Spec Sheet: Spec Sheet
  • UOM: Each
  • Width: 31.81
  • Standard Plumbing Category: Water Handling
  • Standard Plumbing Subcategory: Backflow Prevention
Item Description


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  • Width:
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  • Family: Four Hundred Fifty
  • Install Link: Installation Link
  • Prop65: Cancer and Reproductive Harm - www.P65Warnings.ca.gov
  • Spec Sheet: Spec Sheet
  • Standard Plumbing Category: Water Handling
  • Standard Plumbing Subcategory: Backflow Prevention
Item Description


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Item Description
The Zurn Wilkins 450STDAR Stainless Steel n-Pattern Double Check Detector Assembly is ideal for new or direct drop-in replacement, delivering convenience without compromise. Built for fire protection applications, this detector assembly has a metered by-pass to detect leaks and other water use. The patented AR spool offers flexibility in replacing older models with different lay lengths and maintains agency approvals when installed by the factory.

  • Item ID: 407HR01
  • Width:
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  • Extra Data: For use with potable water pipes with a 4 in. diameter, Ideal for new or direct drop-in replacement, OS and Y gate valves; GPM meter, Superior stainless steel body resists corrosion and extends the life of the product
  • Family: Four Hundred Fifty
  • AltImageName1: /ZRN/ZRN10-450STDAR_1.jpg
  • AltImageName2: /ZRN/ZRN10-450STDAR_2.jpg
  • AltImagePath1: /ZRN-ZRN10-450STDAR_1.JPEG
  • AltImagePath2: /ZRN-ZRN10-450STDAR_2.JPEG
  • Bullet10: Available in sizes 4 in. through 10 in.
  • Bullet5: Time-tested check and relief valve components ensure easy maintenance and more water system uptime
  • Bullet6: Patented compound checks provide ultra-low pressure drop as documented by approval authorities, reducing the need for a booster pump
  • Bullet7: Patented AR spool for drop-in replacements, matching lay-lengths of common n-pattern valves
  • Bullet8: AR spool maintains agency approvals when installed by the factory
  • Bullet9: Metered by-pass detects leaks and other water use; can be situated on either side of product for ease of installation
  • Country: USA
  • Height: 38
  • Install Link: Installation Link
  • Length: 35.13
  • Low Lead: Yes
  • Material: Ductile Iron,Stainless Steel
  • Minimum Order Quantity: 1
  • Prop65: Cancer and Reproductive Harm - www.P65Warnings.ca.gov
  • Shipping Height: 38
  • Shipping Length: 35
  • Shipping Width: 30.5
  • Spec Sheet: Spec Sheet
  • UOM: Each
  • Width: 32
  • Standard Plumbing Category: Water Handling
  • Standard Plumbing Subcategory: Backflow Prevention
Item Description
The Zurn Wilkins 450STDAR Stainless Steel n-Pattern Double Check Detector Assembly is ideal for new or direct drop-in replacement, delivering convenience without compromise. Built for fire protection applications, this detector assembly has a metered by-pass to detect leaks and other water use. The patented AR spool offers flexibility in replacing older models with different lay lengths and maintains agency approvals when installed by the factory.

  • Item ID: 407LRPP
  • Width:
  • Height:
  • Extra Data: cu. ft./min meter, For use with potable water pipes with a 6 in. diameter, Ideal for new or direct drop-in replacement, Superior stainless steel body resists corrosion and extends the life of the product
  • Family: Four Hundred Fifty
  • AltImageName1: /ZRN/ZRN10-450STDAR_1.jpg
  • AltImageName2: /ZRN/ZRN10-450STDAR_2.jpg
  • AltImagePath1: /ZRN-ZRN10-450STDAR_1.JPEG
  • AltImagePath2: /ZRN-ZRN10-450STDAR_2.JPEG
  • Bullet10: Available in sizes 4 in. through 10 in.
  • Bullet5: Time-tested check and relief valve components ensure easy maintenance and more water system uptime
  • Bullet6: Patented compound checks provide ultra-low pressure drop as documented by approval authorities, reducing the need for a booster pump
  • Bullet7: Patented AR spool for drop-in replacements, matching lay-lengths of common n-pattern valves
  • Bullet8: AR spool maintains agency approvals when installed by the factory
  • Bullet9: Metered by-pass detects leaks and other water use; can be situated on either side of product for ease of installation
  • Country: USA
  • Height: 41.88
  • Install Link: Installation Link
  • Length: 40.81
  • Low Lead: Yes
  • Material: Ductile Iron,Stainless Steel
  • Minimum Order Quantity: 1
  • Prop65: Cancer and Reproductive Harm - www.P65Warnings.ca.gov
  • Shipping Height: 40.75
  • Shipping Length: 41
  • Shipping Width: 33
  • Spec Sheet: Spec Sheet
  • UOM: Each
  • Width: 31.81
  • Standard Plumbing Category: Water Handling
  • Standard Plumbing Subcategory: Backflow Prevention
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