6 475 RPDA DI BODY VERT GAL MTR BFLY GRV X GRV
Item Number: 6-475DAVBG
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$27,479.44
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Brand - Wilkins
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- Size: 6 inch
- Assembly Type: Reduced Pressure Detector
- Configuration: Z-Pattern, Vertical Flow Up
- Valve Type: Grooved End Butterfly Valves with Integral Supervisory Switches
- End Connections: Grooved for Steel Pipe
- Maximum Working Pressure: 175 PSI
- Maximum Working Temperature: 140°F
- Body Material: Ductile Iron with FDA Epoxy Coating
- Approvals: ASSE 1047, AWWA C550, UL, C-UL, FM, NSF/ANSI/CAN 61
Description
Description
The Zurn Wilkins Model 475DAV Reduced Pressure Detector Backflow Assembly is a 6-inch device for vertical installation in fire protection systems. It protects potable water from contamination due to backsiphonage and backpressure, ideal for high hazard applications. This z-Pattern assembly features a durable ductile iron body with an FDA approved epoxy finish and grooved end butterfly valves with integral supervisory switches. A metered bypass system helps detect leaks and unauthorized water use, optimizing maintenance. Its small footprint is suitable for retrofit projects. The unit is ASSE 1047, AWWA C550, UL, FM, and NSF/ANSI/CAN 61 approved. Item number 6-475DAVBG.
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Installation Orientation
- This Zurn Wilkins Model 475DAV is designed for vertical up flow installation in a z-Pattern orientation.
Connections
- Equipped with grooved end butterfly valves and designed for grooved for steel pipe connections, compliant with AWWA C606.
Installation Guidelines
Local codes and the latest edition of the Uniform Plumbing Code must be followed for installation. The assembly must be mounted above adequate drains with sufficient side clearance for testing and maintenance. Ensure no part of the unit can be submerged. If installed indoors, an air gap adapter must be supplied.
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Additional Details
The Zurn Wilkins Model 475DAV Reduced Pressure Detector Backflow Assembly is designed for vertical installation in fire protection systems to prevent backsiphonage and backpressure of contaminated water into the potable supply. This assembly protects against high health hazards and incorporates a metered bypass for leak detection and unauthorized water use.
This 6-inch model features a durable ductile iron body with an FDA approved fusion epoxy finish and grooved end butterfly valves with integral supervisory switches, offering a compact footprint ideal for retrofit applications.
Features
- Designed for installation in fire protection systems to prevent backsiphonage and backpressure.
- z-Pattern configuration and vertical up flow orientation for specific installation needs.
- Metered bypass system detects leaks and unauthorized water use, aiding in cost savings.
- Small footprint ideal for quick and easy fire protection retrofit applications.
- FDA approved fusion epoxy finish and ductile iron body resist corrosion.
- Equipped with grooved end butterfly valves with integral supervisory switches.
Construction Materials
- Main Valve Body and Access Covers: Ductile Iron ASTM A 536 Grade 4 with 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.
Specifications
- Model: 475DAV
- Assembly Type: Reduced Pressure Detector Assembly
- Size: 6 inch
- Configuration: Z-Pattern, Vertical Flow Up
- End Connections: Grooved for Steel Pipe
- Valve Type: Butterfly Valves with Integral Supervisory Switches
- Maximum Working Water Pressure: 175 PSI
- Maximum Working Water Temperature: 140°F
- Hydrostatic Test Pressure: 350 PSI
- Relief Valve Discharge Port (2 1/2"-6" models): 2.75 sq. in.
Body 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
Component Materials
- Fasteners: Stainless Steel, 300 Series
- Elastomers: EPDM (FDA approved), Buna Nitrile (FDA approved)
- Polymers: NORYL™
- Springs: Stainless Steel, 300 series
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 (0.25% MAX. WEIGHTED AVERAGE LEAD CONTENT)
FAQs
What is the primary application of the Zurn Wilkins 475DAV?
It is designed for installation on water lines in fire protection systems to protect against backsiphonage and backpressure of contaminated water, especially where a potential health hazard exists.
What type of backflow prevention does the 475DAV provide?
The Model 475DAV is a Reduced Pressure Detector Assembly, offering protection against both backsiphonage and backpressure in high-hazard applications.
How does the metered bypass system function on this assembly?
The metered bypass system is incorporated to detect small leaks within the system and identify unauthorized water usage, which can help save on maintenance costs and prevent water loss.
What are the end connections and valve types for this 6-inch 475DAV model?
This 6-inch Zurn Wilkins 475DAV model (SKU 6-475DAVBG) features grooved end connections for steel pipe and is equipped with grooved end butterfly valves that include integral supervisory switches.
What are the key material specifications for the 475DAV body?
The main valve body and access covers are constructed from ductile iron (ASTM A 536 Grade 4) with an FDA Approved fusion epoxy finish, ensuring corrosion resistance and durability.
