6 475 RPDA DI BODY N PATTERN GAL MTR BFLY GRV X GRV

Item Number: 6-475DABG
1 1
$27,479.44
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When Will it Ship: Contact for Lead Time
Estimated transit time: 2 to 5 Business Days

Brand - Wilkins
  • Model: 475DA
  • Size: 6 inch
  • Connections: Grooved
  • Valve Type: Grooved end butterfly with integral supervisory switches
  • Meter Type: GPM Meter
  • Maximum Working Pressure: 175 PSI
  • Body Material: Ductile Iron with FDA approved fusion epoxy coating
  • Protects against backsiphonage and backpressure

Description

The Zurn Wilkins 6 inch Model 475DA Reduced Pressure Detector Assembly is an N-Pattern backflow preventer designed for high-hazard fire protection systems. It effectively protects potable water from contamination due to backsiphonage and backpressure. Featuring grooved end butterfly valves with integral supervisory switches and a GPM meter, this compact assembly is ideal for new or retrofit installations in tight spaces. Its metered bypass system aids in detecting leaks and unauthorized water use, contributing to efficient water management and reduced maintenance costs. Constructed with durable ductile iron and FDA approved epoxy coating, it ensures reliable performance up to 175 PSI.

Help Me Connect

The Zurn Wilkins Model 475DA is specifically designed for grooved end connections, making it suitable for steel pipe systems that utilize grooved couplings. This 6-inch backflow assembly is configured with an N-Pattern, optimized for new or retrofit installations in compact spaces within fire protection systems. Its integrated butterfly valves with supervisory switches ensure proper system monitoring, while the GPM meter helps identify water usage and potential leaks in the bypass system.

  • The assembly connects to 6 inch grooved pipe on both the inlet and outlet.
  • Installation must comply with local codes, manufacturer's instructions, and the latest edition of the Uniform Plumbing Code.
  • The unit should be mounted above adequate drains with sufficient side clearance for testing and maintenance, and no part of the unit can be submerged.
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Additional Details

The Zurn Wilkins 6 inch Model 475DA Reduced Pressure Detector Assembly is designed for installation on water lines in fire protection systems to safeguard against backsiphonage and backpressure of contaminated water into the potable supply. This N-Pattern assembly includes grooved end butterfly valves with integral supervisory switches and a GPM meter, making it ideal for new or retrofit applications in compact spaces.

Its metered bypass system allows for the detection of leaks and unauthorized water use, helping to reduce maintenance costs.

Key Features

  • N-Pattern design for compact spaces and ease of installation in new or retrofit applications.
  • Equipped with grooved end butterfly valves featuring integral supervisory switches.
  • Includes a GPM meter for detecting leaks and unauthorized water use through its bypass system.
  • Protects potable water supply from backsiphonage and backpressure contamination.
  • Ductile Iron body and access covers with FDA Approved fusion epoxy coating for durability.
  • All checks are easily accessible for maintenance without removing the relief valve or entire device.

Specifications

  • Model: 475DA
  • Size: 6 inch
  • Pattern: N-Pattern
  • Connection Type: Grooved
  • Valve Type: Grooved end butterfly valves with integral supervisory switches
  • Meter Type: GPM Meter
  • Maximum Working Water Pressure: 175 PSI
  • Maximum Working Water Temperature: 140°F
  • Hydrostatic Test Pressure: 350 PSI
  • Relief Valve Discharge Port (6"): 2.75 sq. in.

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), Buna Nitrile (FDA approved)
  • Polymers: NORYL™
  • Springs: Stainless Steel, 300 series
  • Stem: Stainless Steel (ASTM A 276)
  • Seat Ring: NORYL™
  • Seat Disc Elastomers: EPDM

Dimensions & Weight (Approximate)

  • Nominal Weight (with BFLY Valves, GXG): 291 lbs
  • Overall Length (A): 18 11/16 inch (475 mm)
  • Length with Valves (B): 35 1/2 inch (902 mm)
  • Closed Height with BFLY Valves (C): 23 3/4 inch (603 mm)
  • Width (D): 10 inch (254 mm)

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")
  • Meets the requirements of NSF/ANSI/CAN 61 (0.25% MAX. WEIGHTED AVERAGE LEAD CONTENT)

FAQs

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

This assembly is designed for installation on water lines in high-hazard fire protection systems to prevent the backsiphonage and backpressure of contaminated water into the potable water supply.

Does this 6-inch model include a water meter?

Yes, the 6-475DABG model includes a GPM (Gallons Per Minute) meter as part of its metered bypass system, which helps detect leaks and unauthorized water usage.

What type of end connections does this specific 475DA model have?

This Zurn Wilkins 475DA model features grooved end connections, designed for compatibility with steel pipe systems that use grooved couplings.

What are the key certifications for the Zurn Wilkins 475DA assembly?

The 475DA assembly is ASSE® Listed 1047, AWWA Compliant C550, UL® Classified, C-UL® Classified, FM® Approved, and meets NSF/ANSI/CAN 61 requirements for lead content.

What type of valves are integrated into this 475DA assembly?

This model is equipped with grooved end butterfly valves that include integral supervisory switches, allowing for system monitoring and efficient water control.

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