Why Does Closing Some Gatevalves Show Trouble?
-- Early on, the concept of a silent alarm that did not call the firefighters (that's what a supervisory alarm basically is) was considered to be on the same level as a broken wire in the fire alarm system. It was a condition that needed to be fixed without evacuating the building... Read More
What is a Dry Sprinkler Valve?
-- When a fire starts burning in a building, action needs to be taken early... before the fire has grown out of control. Taking this action, sometimes before anyone even... Read More
Why Are There False Waterflow Alarms?
-- The question was asked "Intermittently, we are having a false waterflow alarm problem. For a while, it was OK, but we did the annual waterflow test and since then we get at least once a week a false water flow alarm ... Read More
What is a Waterflow Switch?
-- The fire alarm waterflow switch, a delayed action mechanical/electrical assembly, is a conventionally wired fire alarm device. The fire department reacts... Read More
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