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How Do Fire Sprinklers Work?

Have you ever seen a TV show or movie where all the fire sprinklers in a building went off at once? In real life, fire sprinklers are designed to quickly put out fires while minimizing water damage. Keep reading to learn how fire sprinklers work and why your commercial building should have their fire protection system inspected regularly.

For more information, the fire protection contractors at Fire Pros recommend contacting a fire sprinkler contractornear you.

Pressurized Water

It takes a network of piping to supply water to all the fire sprinkler heads in your building. This is why it’s best to time fire sprinkler installation during new construction or remodeling. The pipes are installed out of sight, behind ceilings and walls.

Fire sprinklers respond quickly to fires because they have a constant supply of pressurized water via the piping network. Each sprinkler head is installed along the piping and strategically placed to protect the rooms and hallways in your commercial building. Only the sprinkler heads closest to the flames will activate in the event of a fire.

Temperature Sensitivity

It’s important to remember that fire sprinklers go off due to an increase in air temperature indicative of a fire. This means that if one of your employees burns their lunch in the microwave, you don’t have to worry about the smoke activating the fire sprinkler system.

It is rare for fire sprinklers to accidentally go off, which means you shouldn’t let fear of water damage prevent you from adding complete fire protection to your commercial building. Compared to a plumbing leak, a fire sprinkler releases much less water in the event of an accidental discharge.

Once the mechanism in the fire sprinkler head has been triggered, the water will only be able to be turned off by an emergency responder. Each sprinkler head has a little plug to hold back the pressurized water in the pipes. However, when the air temperatures rise above 165 degrees Fahrenheit, the plug is released.

The mechanism in the fire sprinkler head depends on the type of sprinkler system you install. For example, some fire sprinkler heads have liquid-filled glass vials that shatter with high air temperatures. A fire sprinkler company can help you determine the right system for your building.

Quick Response

As soon as the fire sprinkler system detects an increase in air temperature indicative of a fire, pressurized water is released via the sprinkler head. Often, the automatic sprinkler system is able to suppress (or even put out) the flames before first responders arrive on the scene. Not only does the quick response of the fire sprinkler system minimize property loss, but it also gives the building’s occupants more time to evacuate. Fire sprinklers also reduce the amount of smoke and heat a fire produces.

Keep in mind that fire sprinkler systems should be just one part of a comprehensive fire protection system and should be combined with other measures like a fire alarm system and fire extinguishers.

Fire Pros is a fire protection company that is dedicated to helping clients maintain commercial buildings that are safe and code-compliant. If you are interested in installing new fire sprinklers or want to learn more about our other fire protection services, give us a call at 800-968-2871.

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Fire Pros, LLC Rated 4.9 out of 5 stars based on 2877 customer reviews

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Always professional.


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Great communication all around between Brandon & Chris both. Thank you again guys!


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Tyler H.

Tyler H.

This quote is for Fire Pros to replace 7 outside horn strobes due to intermittent Nac faults on the panel in building 14."Note if this fixes the problem the customer will be credited from quote 1157254 replacing the module

Near W Jefferson Commons Cir, Kalamazoo, MI 49009
Tyler H.

Tyler H.

FACP BLDG. 14 TELECOM ROOM: Building 14 trouble was showing on facp. Checked batteries/CC in building 14, they look good. recommend replacing the module in bldg 14 if this trouble occurs again. - repair

Near W Jefferson Commons Cir, Kalamazoo, MI 49009
Tyler H.

Tyler H.

FACP BLDG. 14 TELECOM ROOM: Building 14 trouble was showing on facp. Checked batteries/CC in building 14, they look good. recommend replacing the module in bldg 14. And also in building 4. 2 total modules. NEED TO QUOTE. - repair

Near W Jefferson Commons Cir, Kalamazoo, MI 49009
Alex R.

Alex R.

Completed annual Fire Extinguisher inspection for 2020Also Exchanged 1-10 lb ABC that required recharge, 1-Damaged 10 lb ABC with New and Replaced 2-old 10 lb ABC’s in shed with New Work Approved for NTE Increase by EVA and Andrea with EMCOR

Near Woodward Ave, Bloomfield Hills, MI 48304
George S.

George S.

Near 24th Ave, Fort Gratiot Township, MI 48059
Brandon  F.

Brandon F.

Mark approved service work

Near Diana St, Ludington, MI 49431
Tony K.

Tony K.

Alarm Systems Repair

Near Greenfield Rd, Detroit, MI 48235
Art L.

Art L.

Near N Wilson Ct NW, Walker, MI 49534
George S.

George S.

Near Pine Grove Ave, Fort Gratiot Township, MI 48059
Alex R.

Alex R.

Completed annual Fire Extinguisher inspection

Near W Highland Rd, Howell, MI 48843
Art L.

Art L.

Return (2) extinguishers pulled for service at inspection 4/7/2020

Near Kraft Ave SE, Caledonia, MI 49316
Mike R.

Mike R.

Suggested for FACP MAINTENANCE BY MECHANICAL ROOM: Div 8: Customer expressed interest in Fire Pros monitoring their system. Simplex 4010 panel with no current DACT. They would need the proper equipment to facilitate monitoring ability. Please reach out to customer to quote this service. Send quote to Mark Stanley, [email protected]

Near Eastern Ave NE, Grand Rapids, MI 49503
Art L.

Art L.

Portable Extinguishers Inspection

Near Cherry Valley Ave SE, Caledonia, MI 49316
Robert W.

Robert W.

Near Livernois, Detroit, MI 48221
Ron  R.

Ron R.

Near W Grand River Ave, Grand Ledge, MI 48837
John  R.

John R.

Near E Michigan Ave, Ypsilanti, MI 48198
Art L.

Art L.

Portable Extinguishers Inspection

Near 48th Ave, Georgetown Township, MI 49428
Alex R.

Alex R.

Replaced 2-12 volt 7 ah Batteries That were Deficient from recent inspection ***All Systems Normal and Reset ***

Near W Maple Rd, Troy, MI 48084
Robert G.

Robert G.

Near Webb Dr, Westland, MI 48185
Gary B.

Gary B.

Semi-annual Kitchen Suppression System Inspection - PCL 5.5 Gal AB Kitchen Suppression Inspection

Near Hudson St, Ionia, MI 48846
Mark S.

Mark S.

Near W McNichols Rd, Detroit, MI 48235
Art L.

Art L.

Emergency / Exit Lights Service Call

Near Sawkaw Dr NE, Grand Rapids, MI 49525
Alex R.

Alex R.

Completed annual Fire Alarm inspection for 2020Also Ran Wire and Replaced & Tied in Disconnected Kitchen Heat Detector and cleaned all smoke detectors Work Approved by Melissa Gutzwiller

Near Lamson St, Saginaw, MI 48601
George S.

George S.

Near W 12 Mile Rd, Novi, MI 48377
Robert W.

Robert W.

Near E Woodward Heights Blvd, Hazel Park, MI 48030