3 375 RPDA, FLG BODY, FLG X FLG, LESS GATE VALVES

Item Number: 3-375DAL
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$8,943.59
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When Will it Ship: Contact for Lead Time
Estimated transit time: 2 to 5 Business Days

Brand - Wilkins
  • Product Size: 3 inch
  • Reduced Pressure Principle Detector Backflow Assembly (RPDA)
  • Connections: Flanged Inlet x Flanged Outlet
  • Maximum Operating Pressure: 175 PSI
  • Body Material: Epoxy-Coated Ductile Iron ASTM A536
  • Internals and Fasteners: Stainless Steel, 300 Series
  • Lead Free Construction
  • Certifications: ASSE 1047, UL Classified, NSF/ANSI/CAN 61

Description

The 3 inch Zurn Model 375DA Reduced Pressure Principle Detector Backflow Assembly is designed for fire protection systems, offering critical protection against backsiphonage and backpressure of contaminated water. Its epoxy-coated ductile iron body and stainless steel internals ensure durability, while the metered bypass detects leaks and unauthorized water use. This lead-free unit features flanged connections for a 3-inch pipe system and is built for low headloss performance with easy in-line maintenance. It is ASSE 1047, UL Classified, and NSF/ANSI/CAN 61 compliant, providing reliable water safety for high hazard applications.

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Connections and Configuration

  • This 3 inch Zurn Model 375DA backflow assembly features flanged inlet and outlet connections, designed for integration into a flanged piping system.
  • The unit is configured without shut-off gate valves (OS&Y), meaning external shut-off valves must be provided in the system if required.
  • The flanged connections conform to AWWA C606 and ASME B16.42 Class 150 standards.
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Additional Details

The 3 inch Zurn Model 375DA Reduced Pressure Principle Detector Backflow Assembly is designed for installation on water lines in fire protection systems, protecting against backsiphonage and backpressure of contaminated water into the potable supply.

This detector backflow preventer incorporates a metered bypass to effectively detect leaks and unauthorized water use, making it suitable for high hazard fire protection applications where a potential health hazard exists.

Features

  • Provides protection against backsiphonage and backpressure in fire protection systems.
  • Metered bypass for detecting leaks and unauthorized water usage.
  • Body and access covers made from Ductile Iron ASTM A536 with NSF Approved fusion epoxy finish.
  • Stainless steel internals (300 Series) and fasteners (300 Series) for corrosion resistance.
  • EPDM (FDA approved) and Buna Nitrile (FDA approved) elastomers.
  • Zurn Wilkins Compound Check for low headloss and superior performance.
  • Relief valve and checks are easily accessible for in-line maintenance.
  • Lead-free construction.

Connections

  • Inlet and outlet feature flanged connections (AWWA C606, ASME B16.42 Class 150) for a 3 inch pipe system.

Specifications

Performance

  • Product Size: 3 inch
  • Maximum Working Water Pressure: 175 PSI
  • Maximum Working Water Temperature: 140°F
  • Hydrostatic Test Pressure: 350 PSI

Materials

  • Main Valve Body: Ductile Iron ASTM A536
  • Access Covers: Ductile Iron ASTM A536
  • Coating: NSF Approved Fusion Epoxy Finish
  • Internals: Stainless Steel, 300 Series; NORYL™
  • Fasteners: Stainless Steel, 300 Series
  • Elastomers: EPDM (FDA approved), Buna Nitrile (FDA approved)
  • Polymers: NORYL™
  • Springs: Stainless Steel, 300 Series
  • Sensing Line: Stainless Steel, Braided Hose

Connections

  • End Connections: Flanged (AWWA C606, ASME B16.42 Class 150)

Certificates & Approvals

  • ASSE® Listed 1047
  • UL® Classified
  • AWWA Compliant C550
  • CSA B64.4 (4" & 6")
  • C-UL® Classified
  • FM® Approved
  • NYC MEA 218-01-M VOL 3
  • Approved by the Foundation for Cross Connection Control and Hydraulic Research at the University of Southern California
  • Meets NSF/ANSI/CAN 61 (0.25% Max. Weighted Average Lead Content)

FAQs

What type of backflow prevention does the Zurn 375DA provide?

The Zurn Model 375DA is a Reduced Pressure Principle Detector Backflow Assembly, designed to protect against both backsiphonage and backpressure of contaminated water in potable water supplies.

What are the main components and materials of the 375DA?

The main valve body and access covers are made of epoxy-coated Ductile Iron ASTM A536. Internals, fasteners, and springs are Stainless Steel (300 Series), with EPDM and Buna Nitrile elastomers.

Does this specific Zurn 375DA unit include shut-off valves?

No, this particular configuration (SKU 3-375DAL) is supplied without shut-off gate valves (OS&Y). External shut-off valves would need to be installed in the piping system if required.

What kind of connections does the 3 inch 375DA have?

This 3 inch Zurn 375DA model features flanged inlet and outlet connections, conforming to AWWA C606 and ASME B16.42 Class 150 standards.

What is the maximum operating pressure and temperature for this device?

The maximum working water pressure for the 3 inch Zurn 375DA is 175 PSI, and the maximum working water temperature is 140°F.

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