Time is one of the most valuable resources on any job site. Labor is tight, schedules are compressed, and every extra fitting, connection, material search, or avoidable service adds up. Fire sprinkler contractors need products and processes that help them work efficiently without cutting corners. That is where smart product design and lean construction thinking work together.

Lean construction is not about rushing. It is about removing waste from the work. It means reducing unnecessary steps, improving planning, limiting rework, keeping materials organized, and making sure crews have what they need when they need it. In the fire sprinkler industry, that can mean fewer parts to assemble, clearer work packages, better coordination, cleaner riser rooms, faster testing, and systems that are easier to inspect and maintain over time.

AGF products are designed for the realities of the field. They are built to reduce unnecessary parts, simplify installation, support faster testing, and make systems easier to service throughout the life of the building. From test and drain valves to auxiliary drains, inspector’s tests, air vents, and preassembled solutions, AGF helps contractors save time at every stage of the system’s life.

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Fire sprinkler systems are designed to protect lives and property when seconds matter. But even the best designed system depends on regular inspection, testing, and maintenance to remain ready for service.

That is where NFPA 25 comes in.

NFPA 25, Standard for the Inspection, Testing, and Maintenance of Water-Based Fire Protection Systems, establishes the baseline requirements for maintaining water-based fire protection systems after installation. It provides guidance for inspecting, testing, and maintaining systems and components so they continue to operate as intended.

For contractors, inspectors, facility teams, and building owners, NFPA 25 is more than a checklist. It is an ongoing service framework that helps identify issues before they become failures and helps owners meet applicable code, inspection, and documentation expectations. Most importantly, it helps ensure fire protection systems are ready when needed.

AGF products are commonly used in areas of a sprinkler system that require regular inspection, testing, and maintenance. Understanding those requirements helps contractors service systems more effectively and helps owners maintain safer, more compliant buildings.

Test and Drain Requirements

As the name suggests, TESTanDRAIN and Inspector’sTEST valves play an important role in confirming system readiness. They are used to verify waterflow alarm operation, support draining procedures, and help confirm that water supply performance has not degraded over time.

Main drain tests should be performed at the frequency required for the system arrangement and water supply configuration. The test valve should be in an accessible location, downstream of the waterflow alarm, and the drain should be discharged to a location that will not cause damage.

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NFPA 25, Standard for the Inspection, Testing, and Maintenance of Water-Based Fire Protection Systems, establishes the minimum requirements to ensure that fire protection systems remain operational and effective over time. The standard is performance-based in its intent, requiring ongoing inspection, testing, and maintenance (ITM) to verify that system components function as designed.

A critical point emphasized within NFPA 25 is that the responsibility for compliance rests with the building owner or designated representative. The owner is responsible for ensuring that required ITM activities are performed, deficiencies are corrected, and records are maintained (NFPA 25, 2023, §4.1.1; §4.3). Contractors and inspectors perform the work, but compliance accountability remains with the owner.

Continue reading NFPA 25 in Action: Verifying System Performance Over Time →