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

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

Brand - Wilkins
  • Size: 3 inch
  • Type: Reduced Pressure Detector Assembly (RPDA)
  • End Connections: Grooved x Grooved (Less Gate Valves)
  • Main Valve Body: Epoxy Coated Ductile Iron ASTM A536
  • Maximum Working Pressure: 175 PSI
  • Maximum Working Temperature: 140°F
  • Certifications: ASSE 1047, CSA B64.4, AWWA C550, UL, FM, NSF/ANSI/CAN 61
  • Features: Metered bypass for leak detection

Description

The 3-inch Zurn Wilkins Model 375ADA Reduced Pressure Detector Assembly is designed for fire protection systems, offering critical protection against backsiphonage and back-pressure to safeguard potable water from contamination. This model features a robust epoxy-coated ductile iron body and grooved end connections for straightforward installation without gate valves. A metered bypass detects leaks and unauthorized water usage, enhancing system integrity. It is certified by leading organizations including ASSE 1047, CSA B64.4, AWWA C550, UL, FM, and NSF/ANSI/CAN 61, ensuring high standards of safety and performance. With a maximum working pressure of 175 PSI, it provides reliable backflow prevention.

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Connections

This 3-inch Zurn Wilkins Model 375ADA Reduced Pressure Detector Assembly is designed with grooved end connections on both the inlet and outlet. These connections are specifically for use with steel pipe. This configuration is supplied without gate valves, meaning you will need to provide separate shut-off valves if required by your installation or local codes.

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Additional Details

This is a 3-inch Zurn Wilkins Model 375ADA Reduced Pressure Detector Assembly, designed for installation on water lines in fire protection systems. It provides comprehensive protection against both backsiphonage and back-pressure of contaminated water into the potable water supply, especially where a potential health hazard exists. The unit incorporates a metered by-pass to detect leaks and unauthorized water use.

Application & Features

  • Designed for fire protection systems, ensuring the safety of potable water.
  • Features a metered bypass for detecting leaks and unauthorized water use.
  • The main valve body and access covers are constructed from epoxy coated ductile iron (ASTM A536).
  • Checks and the relief valve are easily accessible for maintenance without requiring removal of the device from the line.
  • Equipped with grooved end connections for steel pipe installation.
  • This configuration is supplied without gate valves.

Construction Materials

  • Main Valve Body: Ductile Iron ASTM A536
  • Access Covers: Ductile Iron ASTM A536
  • Coatings: NSF Approved fusion epoxy finish
  • Internals: Stainless steel, 300 Series; NORYL™
  • Fasteners & Springs: Stainless Steel, 300 Series
  • Elastomers: EPDM (FDA approved), Buna Nitrile (FDA approved)
  • Polymers: NORYL™
  • Sensing Line: Stainless steel, braided hose

Specifications

  • Size: 3 inch
  • Model: 375ADA
  • Type: Reduced Pressure Detector Assembly
  • End Connections: Grooved for steel pipe
  • By-Pass Backflow Assembly: 3/4 inch Model 975XLD
  • Main Valve Body Material: Ductile Iron ASTM A536
  • Access Cover Material: Ductile Iron ASTM A536
  • Coating: NSF Approved Fusion Epoxy Finish
  • Internals Material: Stainless Steel, 300 Series; NORYL™
  • Fastener & Spring Material: Stainless Steel, 300 Series
  • Elastomer Material: EPDM (FDA approved); Buna Nitrile (FDA approved)
  • Polymer Material: NORYL™
  • Sensing Line Material: Stainless Steel, braided hose
  • Maximum Working Water Pressure: 175 PSI
  • Maximum Working Water Temperature: 140°F
  • Hydrostatic Test Pressure: 350 PSI

Certificates & Approvals

  • ASSE® Listed 1047 (2 1/2" - 8")
  • CSA B64.4 (2-1/2" - 8")
  • AWWA Compliant C550
  • UL® Classified
  • C-UL® Classified
  • FM® Approved
  • Approved by the Foundation for Cross Connection Control and Hydraulic Research at the University of Southern California
  • NYC MEA 104-05-M
  • 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 375ADA?

It is primarily designed for installation on water lines in fire protection systems to protect against backsiphonage and back-pressure of contaminated water into the potable water supply.

What type of connections does this 375ADA model have?

This specific model features 3-inch grooved body connections on both the inlet and outlet, designed for use with steel pipe. It does not include gate valves, aligning with the 'less gate valves' configuration.

What are the key materials used in the construction of this assembly?

The main valve body and access covers are made from epoxy coated ductile iron ASTM A536. Internals are stainless steel and NORYL™, with EPDM and Buna Nitrile elastomers.

What is the maximum working pressure and temperature for the Zurn Wilkins 375ADA?

The maximum working water pressure is 175 PSI, and the maximum working water temperature is 140°F.

Does this backflow preventer comply with lead-free standards?

Yes, the Zurn Wilkins Model 375ADA meets the requirements of NSF/ANSI/CAN 61 for lead content, specifically 0.25% maximum weighted average lead content.

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