Save Space Without Compromising Performance: AGF’s Model 8611 Corner Riser

As building designs become more compact and mechanical spaces become more congested, fire protection systems must adapt to fit tighter footprints without sacrificing reliability or code compliance. AGF’s Model 8611 Corner Riser is designed with this challenge in mind—offering a smarter, more space-efficient solution for floor control assemblies.

AGF's 8611 corner riser options with left or right drain

Compact Design with a 90-Degree Advantage

Unlike traditional in-line risers that have components on both sides of the riser, the Model 8611 features a 90-degree layout, positioning the flow switch, TESTANDRAIN, and pressure gauge along two planes to form a compact “corner” configuration. This design keeps the riser assembly tight to the wall, dramatically reducing its footprint and minimizing protrusions.

Key Benefits:

  • Space savings – Ideal for tight corridors, stairwells, or to sit tight against the ceiling
  • Cleaner installations – AGF’s three-way valve makes the gauge always accessible
  • Increased safety – Reduces obstruction and potential damage in high-traffic areas

Supports Cane Sweep Law Compliance

Several jurisdictions, particularly in high-rise and multi-family construction, enforce cane sweep regulations, which limit how far building system components can protrude into egress paths such as corridors. These laws are designed to improve accessibility and emergency egress by ensuring clean, unobstructed passageways.

Model 8611’s corner-mounted configuration helps meet these requirements by hugging the corner and reducing the assembly’s outward projection. This makes it easier for contractors and designers to comply with local cane sweep restrictions while still meeting NFPA 13 requirements for floor control assemblies.

Ultimate Riser Options for Efficiency

Model 8611 can come preassembled and tested with all required components, helping contractors save time and labor during installation. Available in 2″ through 8″ sizes, left or right-hand drains, the corner riser can be preassembled with:

  • Butterfly control valve
  • Check valve
  • Butterfly control valve and check valve

By delivering these components pre-configured and pressure-tested, AGF helps ensure consistent performance while minimizing on-site assembly errors.

Flexible Drain Line Options

The 8611 is available with left or right-hand drain orientations, making it easier to accommodate site-specific layouts. An optional flexible drain line provides additional versatility, allowing for easy routing to an approved drain location, particularly useful in confined or irregular spaces.

Ideal for a Range of Applications

The compact, modular nature of the 8611 makes it an excellent fit for:

  • High-rise buildings
  • Multi-family residential projects
  • Mixed-use developments
  • Retrofits or upgrades in space-constrained environments

The AGF Model 8611 Corner Riser redefines how fire sprinkler floor control assemblies are designed and installed. With its smart 90-degree layout, cane sweep-friendly profile, preassembled components, and flexible configuration options, the 8611 offers a modern solution that saves space, reduces installation time, and delivers the performance you expect from AGF.

Smaller footprint. Faster install. Built for today’s buildings.

Learn more about the 8611 Ultimate RiserPACK or the NFPA 13 Commercial 8611 Corner Riser.