Fig 77 Branch Line Restraints Lower Attachment Set
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Secure your branch line piping with the Tolco Fig 77 Branch Line Restraints Lower Attachment Set, built specifically for wet fire protection assemblies. This hardware stabilizes your sprinkler pipes so you prevent dangerous displacement, leaks, and mechanical failure during emergencies. It minimizes pipe movement caused by seismic activity and sudden water pressure surges, which preserves the hydraulic integrity of your fire suppression network. Using this component helps your commercial project meet mandatory life safety codes and pass regional inspections.
This restraint set satisfies NFPA 13 standards for fire sprinkler system installations. It is fully UL Listed and FM Approved for dependable commercial performance.
Key Features & Construction
- Ductile Iron Build: Crafted from high-strength ductile iron to resist mechanical stress and corrosion in demanding environments.
- Piping Compatibility: Designed to work seamlessly with both steel and CPVC branch line piping systems.
- Seismic Stability: Minimizes hazardous pipe displacement during seismic tremors and high-pressure water surges.
- Streamlined Installation: Engineered for straightforward attachment to reduce labor complexity and speed up job site installation.
Technical Specifications & Compliance Table
| Manufacturer / Brand | Tolco |
| Model / Series Number / SIN | Fig 77 |
| Connection / Thread Size & Type | N/A |
| Pressure Rating (WWP) | N/A |
| K-Factor | N/A |
| Temperature Rating / Response Type | N/A |
| Material / Body Construction | Ductile Iron |
| Agency Listings & Approvals | UL Listed, FM Approved |
| Applicable NFPA Standards | NFPA 13 |
Always verify local Authority Having Jurisdiction (AHJ) mandates and consult the manufacturer's engineering guidelines prior to system layout and installation.
Documentation: Download Manufacturer Technical Data & Cut Sheet (PDF)
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