Fire Line Backflow Testing in Killeen, Texas

Fire Line Backflow Testing in Killeen, Texas

Fire sprinkler lines need backflow protection too. We test the detector assembly on your fire line and coordinate every step with the people who watch your alarm.

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Fire Line Backflow Testing in Killeen

About Fire Line Backflow Testing

Most commercial buildings, apartment complexes and many churches and schools in Killeen have a fire sprinkler system fed by a dedicated water line. Water in those pipes can sit still for long periods, picking up rust, sediment and sometimes antifreeze or corrosion inhibitors, so it should never flow back into the public supply. The backflow assembly on a fire line is usually a double check detector assembly or a reduced pressure detector assembly, with a small bypass meter that shows when water is moving through the line. Fire line backflow testing checks every part of that assembly, including the bypass.

Testing a fire line takes more planning than testing a lawn sprinkler device. When the shutoff valves on the assembly close, the fire sprinkler system loses its water supply, which means the building is temporarily without that protection. The alarm monitoring company will usually see a valve tamper or supervisory signal, and the local fire department may need to know as well. Many water providers in the area expect fire line assemblies to be tested on the same kind of schedule as other assemblies, often annually, so this coordination happens again every year.

Before the visit, we confirm who your fire sprinkler contractor and alarm monitoring company are and plan the timing with you. On the day of the test, the alarm company is notified so signals are expected, and the building contact knows the system will be briefly out of service. Our tester then closes the valves, tests the main assembly and the bypass with a calibrated kit, and records each reading. Afterward, valves are reopened fully and checked, the alarm company confirms signals have cleared, and the system is returned to normal.

It helps to have your monitoring account information and the name of your fire sprinkler contractor ready when you call. Make sure the riser room or vault is unlocked and that there is clear space around the assembly. If the building is occupied, plan the test for a time when the short period without sprinkler protection carries the least risk, and consider whether staff should keep a closer eye on things while the valves are closed. Call or use the form to schedule fire line backflow testing at your Killeen property.

Looking for a full-service Killeen backflow testing company? Our crew handles every service, from the annual test to repairs, replacements and the paperwork.

Common Questions

Frequently Asked Questions

Is fire line backflow testing different from a fire sprinkler inspection?

Yes. A fire sprinkler inspection looks at the whole system, including heads, alarms, gauges and valves, and is handled by a fire sprinkler contractor. Backflow testing focuses on the backflow assembly that separates the fire line from the public water supply, and the results usually go to the water provider. The two are often done close together, and we are happy to coordinate timing with your sprinkler contractor.

Will the fire alarm go off during the backflow test?

Closing the valves on a fire line normally sends a supervisory or tamper signal to the alarm monitoring company. That is expected, and it is why the monitoring company is contacted before the test begins so the signal is not treated as an emergency. Once the valves are reopened, the signal should clear. If anything does not clear, we work with you and the monitoring company to sort it out.

How long will my building be without fire sprinkler protection?

Only for the time it takes to test the assembly, and we work to keep that period as short as possible. The exact length depends on the size of the assembly and its condition. Before we start, we confirm with you that the timing is acceptable, and some building owners choose to have staff watch the building more closely while the valves are closed. As soon as testing ends, the valves are opened and checked.

What is a double check detector assembly?

It is a double check valve assembly built for fire lines, with a smaller bypass line that has its own meter and check valve. Low flows, such as a small leak in the sprinkler piping, pass through the bypass and show up on the meter, while large flows during a fire open the main checks. A reduced pressure detector assembly works the same way but adds a relief valve for higher-hazard systems.

Schedule a Backflow Test in Killeen

Have a notice with a due date, a failed test or a question about your backflow preventer? Call us. We will set up a test, explain the results and file the report with your water provider.

(254) 358-8706

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