10 375 RPDA, FLG BODY, FLG X FLG, LESS GATE VALVES

Item Number: 10-375DAL
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$37,764.62
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When Will it Ship: Contact for Lead Time
Estimated transit time: 2 to 5 Business Days

Brand - Wilkins
  • Nominal Size: 10 inch
  • Main Valve Body: Epoxy-Coated Ductile Iron ASTM A536
  • Internals: Stainless Steel, 300 Series
  • Maximum Working Water Pressure: 175 PSI
  • Maximum Working Water Temperature: 140°F
  • End Connections: Flanged (Flange x Flange)
  • Features Metered Bypass for Leak Detection
  • ASSE® Listed 1047, NSF/ANSI/CAN 61 Certified

Description

The Zurn 375DA 10 inch Reduced Pressure Detector Backflow Assembly provides critical protection against contaminated water in high-hazard fire protection systems. Its epoxy-coated ductile iron body and stainless steel internals ensure durability and corrosion resistance. A metered bypass detects leaks and unauthorized water use, helping to reduce operational costs. This model features flanged end connections (Flange x Flange) and is supplied without shut-off gate valves, ideal for specific installation requirements. It is ASSE® Listed 1047 and meets NSF/ANSI/CAN 61 lead-free requirements for reliable performance.

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Connections

  • This 10 inch Zurn 375DA backflow preventer features flanged end connections on both the inlet and outlet (Flange x Flange).
  • It is designed to connect to piping systems with matching flanged fittings that comply with AWWA C606, ASME B16.42, and Class 150 standards.
  • This specific configuration is supplied less shut-off gate valves. Depending on local codes and operational requirements, external shut-off valves may need to be installed upstream and downstream of the assembly for isolation during maintenance.
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Additional Details

The Zurn Model 375DA Reduced Pressure Detector Assembly is designed for installation on 10 inch water lines in fire protection systems. It protects against both backsiphonage and back-pressure of contaminated water into the potable water supply, especially where a potential health hazard exists.

This assembly features a metered by-pass to effectively detect leaks and unauthorized water use, helping to decrease costs over time. The Zurn Wilkins Compound Check design ensures low headloss and superior performance, while its short lay-length makes it ideal for backflow replacements.

Construction & Design

  • Main valve body and access covers are made from epoxy-coated ductile iron (ASTM A536) for corrosion resistance.
  • Internals, fasteners, springs, and sensing line are crafted from stainless steel (300 Series) and NORYL for durability.
  • Equipped with EPDM and Buna Nitrile elastomers (FDA approved) for reliable sealing.
  • This specific configuration is supplied with flanged body connections (Flange x Flange) and less shut-off gate valves.

Specifications

General

  • Model: 375DA
  • Nominal Size: 10 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 (Epoxy Finish)
  • Access Covers: Ductile Iron ASTM A536 (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)
  • Configuration: Less Shut-off Valves (Flange x Flange)

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

FAQs

What is the primary purpose of the Zurn 375DA 10 inch Reduced Pressure Detector Assembly?

This assembly is designed for installation on water lines in fire protection systems to protect against both backsiphonage and back-pressure of contaminated water into the potable water supply, especially in high-hazard applications.

What are the main materials used in its construction?

The main valve body and access covers are made of epoxy-coated ductile iron (ASTM A536). Internals, fasteners, springs, and the sensing line are constructed from stainless steel (300 Series) and NORYL, ensuring durability and corrosion resistance.

What certifications does this Zurn 375DA backflow assembly hold?

It is ASSE® Listed 1047, UL® Classified, AWWA Compliant C550, FM® Approved, and meets NSF/ANSI/CAN 61 requirements, among other approvals. It is certified for a maximum of 0.25% weighted average lead content.

What type of end connections does this specific 10 inch model have?

This 10 inch Zurn 375DA model comes with flanged end connections (Flange x Flange), conforming to AWWA C606, ASME B16.42, and Class 150 standards. It is supplied without shut-off gate valves.

How does the metered bypass feature benefit fire protection systems?

The metered bypass feature allows for the detection of leaks and unauthorized water use within the fire protection system. This helps property owners reduce water loss and operational costs by identifying issues promptly.

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