10 475 RPDA DI BODY N PATTERN GAL MTR BFLY GRV X GRV

Item Number: 10-475DABG
1 1
$64,407.87
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Estimated transit time: 2 to 5 Business Days

Brand - Wilkins
  • Model: 475DA Reduced Pressure Detector Assembly
  • Size: 10 inch
  • Pattern: N-Pattern for compact spaces
  • Valve Type: Grooved End Butterfly Valves with Integral Supervisory Switches
  • Bypass: Metered system for leak detection
  • Maximum Working Water Pressure: 175 PSI
  • Body Material: Ductile Iron ASTM A 536 Grade 4
  • Certifications: UL Classified (4" thru 10"), NSF/ANSI/CAN 61 Compliant

Description

The Zurn Wilkins Model 475DA 10 inch Reduced Pressure Detector Assembly is an N-pattern backflow preventer designed for fire protection systems. It safeguards potable water from contamination due to backsiphonage and backpressure, suitable for compact new or retrofit installations. This model features grooved end butterfly valves with integral supervisory switches and includes a metered bypass system to detect leaks and unauthorized water use. Constructed with durable ductile iron and stainless steel components, it is rated for 175 PSI maximum working pressure and is UL Classified (4" thru 10") and NSF/ANSI/CAN 61 compliant. Item number 10-475DABG.

Help Me Connect

This Zurn Wilkins Model 475DA Reduced Pressure Detector Assembly features grooved end connections designed for compatibility with steel pipe. Ensure proper installation by following manufacturer instructions and local plumbing codes for grooved piping systems. The assembly is specifically configured with grooved end butterfly valves for both inlet and outlet connections.

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Additional Details

The Zurn Wilkins Model 475DA 10 inch Reduced Pressure Detector Assembly (RPDA) is designed for installation on water lines in fire protection systems to safeguard potable water from contamination due to backsiphonage and backpressure.

This N-pattern assembly includes a metered bypass to detect leaks and unauthorized water use, offering a compact design suitable for new or retrofit installations.

Application

  • Protects potable water supply from contaminated water in fire protection systems
  • Detects leaks and unauthorized water usage via a metered bypass system
  • Suitable for applications where a potential health hazard exists

Features

  • N-Pattern configuration for compact spaces and easy retrofit applications
  • Includes grooved end butterfly valves with integral supervisory switches
  • Full port design
  • First and second checks are accessible for maintenance without removing the relief valve or the entire device from the line
  • Designed for horizontal installation

Materials

  • Main Valve Body: Ductile Iron (ASTM A 536 Grade 4)
  • Access Covers: Ductile Iron (ASTM A 536 Grade 4)
  • Coatings: FDA Approved fusion epoxy finish
  • Fasteners: Stainless Steel, 300 Series
  • Elastomers: EPDM (FDA approved) and Buna Nitrile (FDA approved)
  • Polymers: NORYL™
  • Springs: Stainless Steel, 300 series
  • Stem: Stainless Steel (ASTM A 276)
  • Seat Disc Elastomers: EPDM
  • Seat Ring and Check Valve: NORYL™

Performance

  • Maximum Working Water Pressure: 175 PSI
  • Maximum Working Water Temperature: 140°F
  • Hydrostatic Test Pressure: 350 PSI

End Connections

  • Grooved for steel pipe (AWWA C606)

Specifications

  • Model: 475DA
  • Size: 10 inch
  • Type: Reduced Pressure Detector Assembly (RPDA)
  • Pattern: N-Pattern
  • Valve Type: Grooved End Butterfly Valves with Integral Supervisory Switches
  • Bypass: Metered

Performance

  • Maximum Working Water Pressure: 175 PSI
  • Maximum Working Water Temperature: 140°F
  • Hydrostatic Test Pressure: 350 PSI
  • Relief Valve Discharge Port Size (8" - 10"): 3.69 sq. in.

Materials

  • Body Material: Ductile Iron ASTM A 536 Grade 4
  • Access Cover Material: Ductile Iron ASTM A 536 Grade 4
  • Coating: FDA Approved fusion epoxy finish
  • Fastener Material: Stainless Steel, 300 Series
  • Elastomer Material: EPDM (FDA approved), Buna Nitrile (FDA approved)
  • Polymer Material: NORYL™
  • Spring Material: Stainless Steel, 300 series
  • Stem Material: Stainless Steel (ASTM A 276)
  • Seat Disc Elastomer: EPDM
  • Seat Ring/Check Valve Material: NORYL™

End Connections

  • Connection Type: Grooved
  • Connection Standard: AWWA C606

Certificates & Approvals

  • ASSE® Listed: 1047 (4" thru 8")
  • AWWA Compliant: C550
  • UL® Classified: (4" thru 10")
  • C-UL® Classified: (4" thru 10")
  • FM® Approved: (4" thru 8")
  • NYC MEA: 170-02-M VOL 2 (4" thru 8")
  • Approved by the Foundation for Cross Connection Control and Hydraulic Research at the University of Southern California: (4" thru 8")
  • NSF/ANSI/CAN 61: Meets requirements (0.25% MAX. WEIGHTED AVERAGE LEAD CONTENT)

FAQs

What is the primary use of the Zurn Wilkins Model 475DA Reduced Pressure Detector Assembly?

It is designed for installation on water lines in fire protection systems to protect the potable water supply from contamination due to both backsiphonage and backpressure.

What type of connections does this 10 inch 475DA model have?

This model features grooved end connections, specifically designed for compatibility with steel pipe in its fire protection system application.

Does this assembly include a bypass for leak detection?

Yes, it incorporates a metered bypass system designed to detect small leaks and unauthorized water usage, helping to conserve water and reduce maintenance costs.

What are the main body and access covers made of?

The main valve body and access covers are constructed from robust Ductile Iron (ASTM A 536 Grade 4), coated with FDA Approved fusion epoxy for enhanced durability.

What certifications and approvals does the Zurn Wilkins 475DA 10 inch assembly hold?

This assembly is UL Classified (4" thru 10") and meets the requirements of NSF/ANSI/CAN 61, ensuring it complies with stringent safety and performance standards.

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