4" Reduced Pressure Backflow Preventer Valve by Ames Backflows Residential Assembly with OSY Valve
$13,357.99
Sale price
$13,357.99
Regular price
$14,693.99
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4" Reduced Pressure Backflow Preventer Valve by Ames Backflows Residential Assembly with OSY Valve
$13,357.99
Sale price
$13,357.99
Regular price
$14,693.99
Shipping calculated at checkout
The 4" Reduced Pressure Backflow Preventer Valve by Ames Backflows safeguards residential plumbing and fire protection systems by protecting potable water supplies from contamination through a reduced pressure principle. Installed within backflow and fire suppression supply assemblies, this specialized assembly uses an OS&Y (outside stem and yoke) valve configuration to provide clear valve position indication, simplifying manual operation, system testing, and routine maintenance.
Engineered to meet rigorous standards for residential fire protection, this assembly satisfies mandatory cross-connection control requirements to ensure code compliance. Adhering to standards governed by NFPA 13 and NFPA 25 for fire sprinkler and water-based fire protection system installation and inspection, this certified residential detector assembly prevents hazardous backflow events while minimizing maintenance downtime.
Key Features & Construction
- OS&Y Valve Configuration: Outside stem and yoke design gives you a clear visual indication of valve position for faster testing and maintenance.
- High-Visibility Red Finish: Bright red exterior coating ensures the assembly is easy to spot during emergency responses and routine inspections.
- Corrosion-Resistant Build: Durable components withstand harsh environmental conditions to deliver long-lasting service life.
- Residential Detector Assembly Certified: Engineered to meet rigorous performance standards for residential fire safety systems.
Technical Specifications & Compliance Table
| Parameter | Specification |
|---|---|
| Manufacturer / Brand | Ames Backflows |
| Model / Series Number / SIN | M500NOSY-0400 |
| Connection / Thread Size & Type | 4" |
| Pressure Rating (WWP) | N/A |
| K-Factor | N/A |
| Temperature Rating / Response Type | N/A |
| Material / Body Construction | Corrosion-Resistant Components |
| Agency Listings & Approvals | Residential Detector Assembly Certified |
| Applicable NFPA Standards | NFPA 13, NFPA 25 |
Contractors must verify local Authority Having Jurisdiction (AHJ) requirements and consult manufacturer technical data sheets prior to beginning installation.
Documentation: Download Manufacturer Technical Data & Cut Sheet (PDF)
| Item Number | M500NOSY-0400 |
|---|---|
| Brand | Ames Backflows |
| Box Quantity | 1 |
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