10 475 RP SS BODY N PATTERN VERT OSY FLG X FLG

Item Number: 10-475STVOSY
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$64,694.35
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When Will it Ship: Contact for Lead Time
Estimated transit time: 2 to 5 Business Days

Brand - Wilkins
  • Size: 10 inch
  • Body Material: 304L Stainless Steel
  • Configuration: Vertical Flow Up (VUVU)
  • Shut-Off Valves: OS&Y Gate Valves
  • End Connections: Flanged
  • Maximum Working Pressure: 175 PSI
  • Certifications: ASSE® Listed 1013, NSF/ANSI/CAN 61, CSA B64.4
  • Features: Patented compound checks for ultra-low pressure drop

Description

The Wilkins 10 inch 475STV Reduced Pressure Principle Vertical Assembly (RPV) is a lead-free backflow preventer with a 304L stainless steel body, designed for vertical flow-up installations on potable water lines. It effectively protects against backsiphonage and backpressure of contaminated water. Featuring OS&Y gate valves and flanged connections, this 10-inch unit is engineered for direct drop-in replacement or new installations, offering superior corrosion resistance and a compact footprint. It is ASSE 1013 listed and NSF/ANSI/CAN 61 compliant, ensuring reliable performance and easy maintenance with its accessible components and patented low-pressure drop checks.

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Installation & Compatibility

This Wilkins 475STV Reduced Pressure Principle Backflow Preventer is designed for vertical flow up (VUVU) installations, meaning both the inlet and outlet flows are in an upward direction. It features flanged end connections for secure integration into piping systems and includes OS&Y (Outside Stem and Yoke) gate valves for reliable shut-off. This model is ideal for drop-in replacement of existing competitor valves or for new installations on potable water lines requiring robust backflow protection.

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Additional Details

The Wilkins 475STV 10 inch Stainless Steel N-Pattern Reduced Pressure Principle Vertical Assembly is designed for drop-in replacement or new installations on potable water lines. It protects against backsiphonage and backpressure of contaminated water, ensuring the safety of the potable water supply. This model is approved for applications requiring vertical flow up (VUVU) orientation and features a superior stainless steel body for enhanced corrosion resistance.

Key Features

  • Stainless Steel Body: Superior 304L stainless steel body and access covers resist corrosion and extend product life.
  • Vertical Flow Up (VUVU) Configuration: Specifically designed for vertical flow applications where the inlet and outlet flows up.
  • OS&Y Gate Valves: Equipped with Outside Stem and Yoke gate valves for reliable shut-off.
  • Patented Compound Checks: Provides ultra-low pressure drop, reducing the need for a booster pump.
  • Accessible Components: Time-tested check and relief valve components are easily accessible for maintenance without removing the device from the line.
  • Smaller Footprint: Designed for direct drop-in replacement with a compact design.

Specifications

General

  • Brand: Wilkins (Zurn)
  • Model: 475STV
  • Size: 10 inch
  • Configuration: N-Pattern, Vertical Flow Up (VUVU)

Materials

  • Main Valve Body: 304L Stainless steel
  • Access Covers: 304L Stainless steel
  • Coatings: FDA Approved electrostatic epoxy finish
  • Internals: Stainless steel, 300 Series NORYLT™, NSF Listed
  • Fasteners & Springs: Stainless Steel, 300 Series
  • Seal Rings: EPDM (FDA approved)
  • O-Rings: Buna Nitrile (FDA approved)
  • Sensing Line: Stainless Steel, braided hose

Performance

  • Maximum Working Water Pressure: 175 psi
  • Minimum Working Water Pressure: 25 psi
  • Maximum Working Water Temperature: 140° F
  • Minimum Working Water Temperature: 33° F
  • Hydrostatic Test Pressure: 350 psi

Connections

  • End Connections: Flanged bolt pattern
  • Connection Standards: AWWA C606-87, ASME B16.42 Class 150

Certificates & Approvals

  • Foundation for Cross Connection Control and Hydraulic Research: Approved (VUVD and VUVU orientations)
  • ASSE® Listed: 1013
  • AWWA Compliant: C511 (with gates only), C550
  • CSA B64.4: Certified
  • UL® Classified
  • C-UL® Classified
  • FM® Approved
  • NSF/ANSI/CAN 61: Meets requirements (0.25% MAX. WEIGHTED AVERAGE LEAD CONTENT)

FAQs

What is the primary purpose of the Wilkins 475STV backflow preventer?

The primary purpose of the Wilkins 475STV is to protect potable water lines from contamination due to backsiphonage and backpressure, ensuring the safety of the drinking water supply.

What does "VUVU" configuration mean for this model?

"VUVU" (Vertical Flow Up, Vertical Flow Up) configuration indicates that this backflow preventer is specifically designed for installations where both the inlet and outlet water flows are directed upwards.

What are the main material components of the 475STV 10 inch backflow preventer?

The main valve body and access covers are made from 304L stainless steel, while the seal rings are EPDM (FDA approved) and O-rings are Buna Nitrile (FDA approved). Internals include stainless steel and NORYLT™ components.

What type of shut-off valves are included with this model?

This 475STV model includes OS&Y (Outside Stem and Yoke) gate valves, which are used for positive shut-off and provide a visual indication of whether the valve is open or closed.

What type of end connections does the 10 inch 475STV have?

The 10 inch 475STV backflow preventer features flanged bolt pattern end connections, designed to meet AWWA C606-87 and ASME B16.42 Class 150 standards for secure pipeline integration.

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