10" Reduced Pressure With OS&Y LF Backflow
R 280,058.00
Sale price
R 280,058.00
Regular price
R 429,784.00
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10" Reduced Pressure With OS&Y LF Backflow
R 280,058.00
Sale price
R 280,058.00
Regular price
R 429,784.00
Shipping calculated at checkout
The Conbraco 10" Reduced Pressure Backflow Preventer with OS&Y secures your potable water supply by stopping hazardous contaminants from flowing backward from residential fire sprinkler systems. Installed directly inline on municipal supply lines, this reduced pressure assembly uses two independently acting check valves and a differential pressure relief valve to block both backpressure and backsiphonage.
This unit satisfies strict life-safety requirements under NFPA 13 and NFPA 25, ensuring code-compliant system operation and reliable water containment during fire emergencies. Integrated Outside Screw & Yoke gate valves provide dependable system isolation while letting you check the open or closed valve position at a glance.
Key Features & Construction
- Durable Body: FDA epoxy-coated ductile iron construction stands up to continuous pressure and environmental stress without corroding.
- Internal Integrity: Corrosion-resistant 300-series stainless steel springs, fasteners, and valve stems ensure long-term operational reliability.
- Advanced Flow Control: TriForce center-stem guided check valves manage water efficiently while maintaining low pressure loss.
- Rapid Setup: Grooved connections facilitate fast in-line installation and reduce potential leak points.
- Operating Limits: Supports system pressures up to 175 PSI and temperatures ranging from 33°F to 140°F.
- Service Friendly: Straightforward design allows for quick maintenance without requiring special tools.
Technical Specifications & Compliance Table
| Specification | Details |
|---|---|
| Manufacturer / Brand | Conbraco Ince |
| Model / Series Number / SIN | 4A-20G-03 |
| Connection / Thread Size & Type | 10" Grooved Connections |
| Pressure Rating (WWP) | 175 PSI Max Working Pressure |
| K-Factor | N/A |
| Temperature Rating / Response Type | 33°F to 140°F |
| Material / Body Construction | FDA Epoxy-Coated Ductile Iron (Body); 300-Series Stainless Steel (Internals) |
| Agency Listings & Approvals | UL Listed (UL 312), FM Approved, ASSE 1013, NSF/ANSI 61 & 372 Lead-Free Compliant |
| Applicable NFPA Standards | NFPA 13, NFPA 25 |
Submittal & Installation Note: Always verify local Authority Having Jurisdiction (AHJ) mandates and consult the manufacturer's engineering cut sheets prior to job-site installation.
Documentation: Download Manufacturer Technical Data & Cut Sheet (PDF)
| Item Number | 4A-20G-03 |
|---|---|
| Brand | Conbraco Ince |
| Box Quantity | 1 |
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