Test Orifice Requirements in NFPA 13 and NFPA 25

The inspector’s test valve is a vital component of any wet fire sprinkler system. At the heart of this connection is the test orifice. A small but critical feature that certifies the system’s waterflow alarm functions correctly. Both NFPA 13 (Installation of Sprinkler Systems) and NFPA 25 (Inspection, Testing, and Maintenance of Water-Based Fire Protection Systems) provide requirements that govern the size, purpose, and functionality of this orifice.

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Smarter Layouts for Safer Buildings: The Benefits of Corner-Mounted Floor Control Assemblies

In multi-story buildings, floor control assemblies are essential for isolating, draining, and testing individual floors of a sprinkler system. However, finding space to install these assemblies, especially in tight stairwells or shared mechanical areas, can be a challenge. That’s where corner-mounted designs like the AGF Model 8611 Corner Riser offer a practical, code-conscious solution.

Whether used as a floor control assembly or a main riser, the 8611 is engineered to reduce obstructions, support accessibility, and simplify installation.

The Space Challenge in Stairwells and Corridors

Floor control assemblies are often installed in stairwells of hotels, apartment buildings, and high-rises. These spaces are highly trafficked, frequently narrow, and must remain clear for emergency egress. Flat wall-mounted assemblies can protrude significantly, posing hazards and potentially violating ADA and local building codes.

By mounting the assembly in a 90-degree corner, Model 8611 significantly reduces its profile, helping maintain safe, unobstructed walkways.

Alternatively, the corner riser can be mounted horizontally and tucked into the corner between the ceiling and wall. This offers a space-saving solution while being able to access the TESTanDRAIN handle for testing and the 7000L pressure relief valve. AGF’s three-way gauge valve has always been accessible since its redesign, which rotates the handle so it should never need to face the wall or ceiling while having the pressure gauge facing out.

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Understanding Relief Valve Pressure Ratings: What’s New in NFPA 13 (2025)

When it comes to protecting fire sprinkler systems from over-pressurization, pressure relief valves are a key component. But for years, there’s been confusion about what the pressure rating on these valves actually means, especially when it comes to the opening and closing pressures.

With the release of the 2025 edition of NFPA 13, that confusion is finally being addressed. New language in the handbook offers long-awaited clarity, helping system designers, inspectors, and maintenance personnel better understand how relief valves are supposed to perform.

The 2025 edition of NFPA 13 finally adds clarity.

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AGF: A Proud American Manufacturer, Now in Its Third Generation of Family Leadership

For nearly 40 years, AGF Manufacturing has been guided by the same principles it was founded: innovation, integrity, and a commitment to the fire protection industry. But what truly sets AGF apart isn’t just its reputation for quality, it’s

George McHugh III at an early sprinkler industry tradeshow.

the fact that it has remained a proudly family-owned, American manufacturer from the start.

AGF’s story began in 1986, when George J. McHugh III partnered with Alan Gilmore to solve a problem in the fire sprinkler world. Their solution, the original TESTANDRAIN Model 1000, replaced a complex assembly of 17 separate components with a single handle, multi-function valve. It was a simple but powerful innovation that changed the industry. That spirit of problem solving and practical engineering continues to define AGF today.

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AGF Welcomes George “Joe” McHugh as Director of Operations

Marking the Third Generation of Family Leadership

Joe McHugh, AGF's new Director of OperationsMalvern, PA — June 11, 2025 — AGF Manufacturing, a leading innovator in the fire sprinkler industry, is proud to announce the hiring of George “Joe” McHugh as Director of Operations. This milestone marks the continuation of a proud family tradition, as Joe becomes the third generation of the McHugh family to help lead the company.
Joe brings over a decade of operations and logistics leadership from Amazon, where he most recently served as a Senior Program Manager for Amazon Logistics ACES. Throughout his 11-year tenure, he led large-scale process improvement initiatives, launched and optimized logistics delivery stations across North America, and implemented lean principles to enhance efficiency and performance.

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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

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Steve Tajer Joins AGF Manufacturing as Regional Sales Manager – South

AGF Manufacturing proudly welcomes Steve Tajer as our new Regional Sales Manager for the Southern U.S.

Steve Tajer
Steve Tajer- Regional Sales Manager- South

With a territory covering Texas to the top of North Carolina, Steve will work closely with fire protection contractors, distributors, and industry partners to support AGF’s mission of delivering innovative, reliable solutions for the fire protection industry. He’ll focus on providing product knowledge, technical support, and strengthening relationships across the region.

Steve brings over a decade of experience in commercial construction, including nearly five years in fire protection sales. His hands-on industry knowledge and commitment to customer service make him a strong addition to the AGF team.

We’re excited to have Steve on board—please join us in welcoming him to AGF!

AGF Manufacturing Launches PURGENVENT™ Model 7940 BLE

A BABAA-Compliant Automatic Air Vent Assembly for Wet Fire Sprinkler Systems

Malvern, PA – April 14, 2025 — AGF Manufacturing proudly announces the release of the PURGENVENT™ Model 7940 BLE (Branch Line Extension), a Build America, Buy America Act (BABAA) compliant automatic air venting valve assembly designed to increase the longevity and reliability of wet pipe fire sprinkler systems. With integrated features for streamlined installation, system protection, and NFPA 13 compliance, the 7940 BLE sets a new standard for air management in fire protection.

AGF new air vent

“The 7940 BLE is a comprehensive solution to help contractors meet NFPA 13 code requirements while simplifying installation and improving long-term system performance,” said Jim McHugh, President of AGF Manufacturing. “It’s everything you need for compliant venting in one factory-assembled, American-made package.”

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AGF Welcomes George Stewart to the Engineering Team

Industry Veteran Brings Engineering Expertise to Support Product Innovation and Customer Solutions

George StewartMalvern, PA — April 9, 2025 – AGF Manufacturing is pleased to announce the addition of George Stewart to its growing engineering team. George brings with him a wealth of engineering experience across a diverse range of industries and a strong track record of developing specialized equipment and systems.

George began his career at Gamajet/Alfa Laval, where he worked his way up through the engineering department. There, he focused on designing advanced tank cleaning machines and systems used in a wide range of industrial applications. His career then took him to National Foam, where he specialized in high-flow and high-expansion foam firefighting systems, deepening his expertise in fire protection technologies.

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