Follow the steps below to perform a single-hydrant flow test. Locate the test area by choosing the closest hydrant downstream of the building supply line. This will be used to gather pressure readings. Next, select the …
A growing concern of #firedepartments and #municipalities is the proper functioning of #firehydrants when needed to extinguish a fire. In this video, we sho…
The Single Hydrant Flow Test – HoseMonster
The Hydrant Capacity Fire Flow Test, which more accurately predicts water available from a hydrant and is more economical to perform. The Fire Main Capacity Flow Test is the test recommended by both NFPA 291 and AWWA M17. This test determines the value of the water supply of the underground fire main at the location of the fire hydrant.
Mark the hydrant measuring pressure as the residual hydrant. Both static pressure (when flow hydrants are closed) and residual pressure (when flow hydrants are open) are assessed from this hydrant. The residual hydrant should be between the hydrant (s) to be flowed and the large mains that supply water to the area.
People Also Ask how to flow test a fire hydrant with one person
What happens when you test a fire hydrant?
If all hydrants in a system are tested, partially closed valves and other obstructions will become known. This test uses a single hydrant as both the Residual hydrant and the Flow hydrant. A Fire Main Capacity Flow Test evaluates the water supply of the fire main at the location of the test hydrant.
How do I get a pressure reading from a hydrant?
Locate the test area by choosing the closest hydrant downstream of the building supply line. This will be used to gather pressure readings. Next, select the subsequent downstream hydrant as the secondary flowing hydrant to obtain your pitot reading. Remove the nozzle cap on the pressure hydrant and attach a pressure gauge to the outlet.
How do I perform a single-hydrant flow test?
Follow the steps below to perform a single-hydrant flow test. Locate the test area by choosing the closest hydrant downstream of the building supply line. This will be used to gather pressure readings. Next, select the subsequent downstream hydrant as the secondary flowing hydrant to obtain your pitot reading.
When is the best time to perform hydrant flow tests?
NFPA 291 ( 4.2.1) suggests conducting hydrant flow tests during periods of “ordinary demand.” However, some fire protection professionals recommend performing flow tests during peak morning hours to reflect the worst-possible scenario during an emergency.
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How to Conduct a Single Hydrant Flow Test | Hose Monster University Video Answer
Reference:
https://www.usfa.fema.gov/
https://en.wikipedia.org/wiki/Fire_extinguisher