2-1/2" Double Check Valve Assembly OSY Female x Grooved
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The 2-1/2" Double Check Valve Assembly by Zurn Wilkins installs inline within commercial fire protection and plumbing systems to prevent reverse water flow and protect potable water supplies from contamination. Utilizing two independent check valves, this robust backflow preventer maintains controlled system pressure and effective flow for fire suppression operations.
This assembly complies with rigorous industry standards for backflow prevention in commercial and industrial fire safety networks. Governed by standards such as NFPA 13 and NFPA 25 requirements for system reliability and testing, the unit features an Outside Stem and Yoke (OS&Y) design that provides a clear visual indication of valve status to satisfy routine inspection mandates.
- Size & Connections: Features a 2-1/2” diameter with an OS&Y female inlet and a grooved outlet for alignment with existing pipelines.
- Double Check Technology: Incorporates two independent check valves to provide redundant backflow prevention and safeguard water supplies.
- OS&Y Design: The exposed stem allows for quick visual status checks, simplifying maintenance and technician inspections.
- Durable Construction: Crafted from rugged, corrosion-resistant materials built to withstand high-pressure conditions in fire protection systems.
- Fast Installation: Grooved outlet connections reduce labor time and ensure secure, leak-resistant pipe fittings.
| Technical Specification | Details |
|---|---|
| Manufacturer / Brand | Zurn Wilkins |
| Model / Series Number | 2-1/2" Double Check Valve Assembly OS&Y Female x Grooved |
| Connection / Thread Size & Type | 2-1/2" OS&Y Female Inlet x Grooved Outlet |
| Pressure Rating (WWP) | High-pressure rated for fire protection systems |
| K-Factor | N/A |
| Temperature Rating / Response Type | N/A |
| Material / Body Construction | Corrosion-resistant metal alloy |
| Agency Listings & Approvals | Industry compliance for backflow prevention |
| Applicable NFPA Standards | NFPA 13, NFPA 25 |
Contractors and facility managers must verify local Authority Having Jurisdiction (AHJ) requirements and consult manufacturer technical data sheets to ensure proper sizing, working pressure compatibility, and code-compliant installation.
Documentation: Download Manufacturer Technical Data & Cut Sheet (PDF)
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