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Zurn Wilkins 350ASTDA Double Check Detector Assembly
Product code: 350ASTDABG-0250
In stock: 6336
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Safeguard commercial, industrial, and residential fire protection systems against backpressure and backsiphonage with the 350ASTDA Double Check Detector Assembly. This assembly installs directly into supply lines to protect potable water infrastructure from contamination. Featuring dual independent check modules and a metered bypass system, it provides backflow prevention and detects leaks or unauthorized water use. Shutoff configuration varies by selected SKU: BFG options use grooved-end butterfly shutoff valves, while OSY options use OS&Y gate valves.
To ensure regulatory compliance and life safety performance, this assembly satisfies the requirements mandated by NFPA 13 and NFPA 25 standards for fire protection system installation and periodic testing. It carries essential third-party agency evaluations including UL and FM approvals alongside ASSE 1015 certification, verifying its performance for demanding installations.
| Technical Field | Specification Details |
|---|---|
| Manufacturer / Brand | Zurn Wilkins |
| Model / Series Number / SIN | 350ASTDA |
| Connection / Thread Size & Type | ANSI Flanged and AWWA Grooved Ends |
| Pressure Rating (WWP) | 175 PSI Max Working Pressure |
| K-Factor | N/A |
| Temperature Rating / Response Type | 33°F to 140°F |
| Material / Body Construction | Stainless Steel and Fusion-Bonded Epoxy-Coated Ductile Iron |
| Agency Listings & Approvals | UL Listed, FM Approved, ASSE 1015 Certified |
| Applicable NFPA Standards | NFPA 13, NFPA 25 |
Contractors and facility managers must verify local Authority Having Jurisdiction (AHJ) requirements and consult the official Zurn specification sheet for complete engineering data and sizing guidelines prior to system installation.
Documentation: Download Manufacturer Technical Data & Cut Sheet (PDF)
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At Fire Protection Parts, we understand that maintaining effective fire suppression systems requires readily available, high-quality components. We are not a general supplier; our exclusive focus is on fire protection parts, which allows us to offer unparalleled expertise and a comprehensive inventory in this vital niche.
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Unwavering Product Specialization: Our deep focus on fire sprinkler system components, and specific types of suppression system valves ensures our knowledge and resources are entirely dedicated to your systems' intricate needs.
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Choose Fire Protection Parts as your partner. We deliver specialized products with exceptional service, technical expertise, and reliable speed, dedicated to being your trusted source for all your fire protection needs.
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Effective: April 30, 2025
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General Returns
We accept returns of most new, unused, and resalable items in original packaging within 30 days of receipt. A valid proof of purchase is required.
Initiation: Contact us at info@fireprotectionparts.net to start a return and obtain a Return Merchandise Authorization (RMA) number.
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Defective/Damaged Items: Contact us immediately upon receipt for instructions.
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While Fire Protection Parts specializes in providing high-quality fire protection components, we understand that proper installation is crucial for the effectiveness and safety of these systems.
For professional installation services across the United States, we recommend our trusted partner: Fire & Life Safety Consultants.
As a nationwide fire protection contractor, Fire & Life Safety Consultants offers comprehensive installation services for a wide range of fire protection systems.
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Visit their website: www.fireandlifesafety.net to learn more about their services and coverage or call (800) 976-2489.
Email job information: Send the details of your installation needs to info@fireprotectionparts.net, and we will forward your inquiry to the team at Fire & Life Safety Consultants.
Please note that while we facilitate this connection, all installation services and agreements will be directly between you and Fire & Life Safety Consultants.
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