6 450 DCDA SS BODY N PATTERN BFLY GRV X GRV

Item Number: 6-450STDABG
1 1
$24,024.54
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When Will it Ship: Contact for Lead Time
Estimated transit time: 2 to 5 Business Days

Brand - Wilkins
  • Valve Size: 6 inch
  • Body Material: 304L Stainless Steel
  • End Connections: Grooved x Grooved
  • Maximum Working Pressure: 175 psi
  • Application: Fire protection systems
  • Features metered by-pass for leak detection
  • Patented AR spool for direct drop-in replacement
  • ASSE® Listed 1048, CSA® Certified B64.5, FM® Approved

Description

The Zurn Wilkins 6 inch 450STDA Double Check Detector Assembly (DCDA) provides reliable backflow prevention for fire protection systems. Constructed with a durable 304L stainless steel body, it resists corrosion and offers a long service life. This n-pattern DCDA features grooved x grooved connections and a metered by-pass to detect leaks and unauthorized water use. It's designed for new installations or as a direct drop-in replacement with its patented AR spool. Approved by ASSE, CSA, UL, and FM, this assembly ensures the protection of potable water from non-health hazard pollution.

Help Me Connect

Connecting the Wilkins 450STDA DCDA

  • The 6 inch 450STDA DCDA features grooved end connections designed for compatibility with grooved piping systems.
  • Ensure that connecting pipes also have matching 6 inch grooved ends for a secure and proper installation.
  • This assembly is specified with grooved end butterfly valves with integral supervisory switches for system integration.
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Additional Details

The Zurn Wilkins 6 inch 450STDA Stainless Steel n-Pattern Double Check Detector Assembly (DCDA) is designed for fire protection systems, offering reliable backflow prevention and metered leak detection. It is suitable for new installations or as a direct drop-in replacement for existing valves.

This DCDA protects potable water supplies from backsiphonage and backpressure of polluted water where a potential health hazard does not exist, while its metered by-pass detects leaks and unauthorized water use.

Key Features

  • Corrosion-Resistant Body: Constructed with a 304L Stainless Steel body and access covers for superior durability and extended product life.
  • Leak Detection: Features a metered by-pass to accurately detect leaks and unauthorized water usage within the system.
  • Drop-in Replacement: Patented AR spool allows for direct drop-in replacement, matching lay-lengths of common n-pattern valves while maintaining agency approvals.
  • Ultra-Low Pressure Drop: Patented compound checks ensure minimal pressure loss, potentially eliminating the need for a booster pump.
  • Integrated Control: Equipped with grooved end butterfly valves with integral supervisory switches for enhanced system monitoring and control.
  • Easy Maintenance: Time-tested check and relief valve components are designed for easy maintenance and maximum water system uptime.

Specifications

  • Model: 450STDA
  • Valve Size: 6 inch
  • Valve Type: Double Check Detector Assembly (DCDA)
  • Pattern: n-Pattern
  • End Connections: Grooved x Grooved (AWWA C606)
  • Body Material: 304L Stainless Steel
  • Access Covers Material: 304L Stainless Steel
  • Internals Material: Stainless steel (300 Series), Noryl™ (NSF Listed)
  • Fasteners and Springs Material: Stainless Steel (300 Series)
  • Seal Ring Material: EPDM (FDA approved)
  • O-Ring Material: Buna Nitrile (FDA approved)
  • Stem Material: Stainless steel (ASTM A 276)
  • Seat Ring and Check Valve Material: Noryl™ (NSF Listed)
  • Seat Disc Elastomers Material: EPDM
  • Maximum Working Pressure: 175 psi
  • Minimum Working Pressure: 20 psi
  • Maximum Working Temperature: 140° F
  • Minimum Working Temperature: 33° F
  • Hydrostatic Test Pressure: 350 psi
  • Approximate Weight: 187 lbs
  • Approximate Length (with BFLY valves): 24 3/4 inches
  • Approximate Bypass Height: 10 5/8 inches

Certificates & Approvals

  • Approved by the Foundation for Cross Connection Control and Hydraulic Research at the University of Southern California
  • ASSE® Listed 1048
  • CSA® Certified B64.5
  • AWWA Compliant C510 (with gates only) and C550
  • UL® Classified
  • C-UL® Classified
  • FM® Approved
  • Meets NSF/ANSI/CAN 61 requirements (0.25% MAX. WEIGHTED AVERAGE LEAD CONTENT)

FAQs

What is the primary application of the Wilkins 450STDA DCDA?

The primary application is in fire protection systems to prevent backsiphonage and backpressure of polluted water into the potable water supply, especially where a potential health hazard does not exist.

What does the "metered by-pass" feature do?

The metered by-pass is designed to detect leaks and unauthorized water usage within the system, providing a crucial monitoring capability.

What type of end connections does this 6 inch 450STDA have?

This particular 6 inch 450STDA model features grooved end connections on both the inlet and outlet, designed for compatibility with grooved piping systems.

What materials are used for the main components of the 450STDA?

The main valve body and access covers are made from 304L Stainless Steel, while internal components include stainless steel, Noryl™ (NSF Listed) for seat rings and check valves, and EPDM (FDA approved) for seal rings and seat disc elastomers.

Is this device approved by industry standards?

Yes, the Wilkins 450STDA is extensively approved, including ASSE® Listed 1048, CSA® Certified B64.5, UL® Classified, C-UL® Classified, FM® Approved, and it meets NSF/ANSI/CAN 61 requirements.