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Pre-Action Fire Sprinkler Systems

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Adequately protecting your building from fire hazards requires a multifaceted approach. One of those approaches should be to install a fire sprinkler system. No other fire suppression method is more effective at saving lives and reducing property damage. But what if your building contains delicate equipment or artifacts that could be harmed just as badly by water as by fire? In this scenario, an accidental discharge could be devastating.

When you need an added level of protection against inadvertent sprinkler activation, consider a pre-action system. Fire Pros can perform the fire sprinkler installation you need to ensure your facility is protected from fire and water.

Find out more about pre-action fire sprinklers to see if they’re the right solution for you. Then, contact Fire Pros for information about getting a system installed in your building.

What Is a Pre-Action Fire Sprinkler System?

Under normal conditions, no water is contained within the pipes of a pre-action system, which is the same as dry pipe fire sprinklers. The difference comes when the flame, heat, or smoke detection system activates.

Instead of sending water directly onto the flames below, an electronically operated valve, called a pre-action valve, opens. This converts the dry piping into a wet pipe system. After this initial phase, high heat must then trigger individual sprinkler heads before the water discharges. In a sense, the pre-action fire sprinkler works to convert a dry pipe system into a wet pipe system quickly and effectively, and allows fire sprinklers to be activated independently.

Some pre-action systems are installed with a double interlock where pressurized air or nitrogen is added to the piping. This serves two purposes: to monitor the pipes for leaks and to hold water in case the detectors operate mistakenly. Freezer warehouses are the most common application for this feature.

Pre-action fire sprinklers are most often installed in water-sensitive environments, such as computer centers, fine art storage areas, libraries of rare books, and archival vaults. Non-water fire suppression is also available for these special hazard areas.

Important Installation & Maintenance Considerations

Before you install pre-action fire sprinklers, understand that they have additional components that increase the complexity of the system. This results in higher installation costs and more maintenance requirements. In addition, specific size limitations may impact the ability to modify the system later on.

Because these systems are so complex, maintenance is imperative. To comply with NFPA 25 Standard for the Inspection, Testing, and Maintenance of Water-Based Fire Protection Systems, keep up with the following requirements:

  • Inspect gauges weekly to check that the air and water pressures are correct.
  • Perform a yearly trip test on the pre-action valve following the manufacturer’s instructions.
  • During the trip test, inspect and clean the pre-action valve. Repair or replace any parts as needed.

Schedule Pre-Action Fire Sprinkler Installation in MI

While pre-action sprinklers could be the best fire protection method for your special hazard building, it takes careful planning and expert installation to provide the results you want. Fire Pros will assess your site and recommend the most suitable solution to meet your needs. Whether you opt for pre-action sprinklers or another method, we can design, install, and service your fire protection system in the years to come.

To begin the process of installing pre-action fire sprinklers in Michigan, please contact Fire Pros at (866) 560-6872.

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Gary, stopped by to replace out last two extinguishers, that were due for exchange in 2020. Passed on that our Facilities Dept was moving to an Annual Self-Inspection.


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Mike R.

Mike R.

Emergency Service Call

Near Northridge Dr NW, Grand Rapids, MI 49544
Terrence J.

Terrence J.

Near Annapolis Ave, Westland, MI 48186
John R.

John R.

Near 52nd Ave, Allendale Charter Township, MI 49401
Robert W.

Robert W.

Near Plymouth Rd, Livonia, MI 48150
Tyler H.

Tyler H.

Amy called - panel in trouble power supply - maint changed battery still showing trouble call with ETA phone are forwarded just leave a message it will email her 269-353-4712

Near Stadium Dr, Kalamazoo, MI 49009
John H.

John H.

Industrial/Dry Chemical Suppression Inspection

Near Isenhauer Rd, Grayling, MI 49738
George S.

George S.

Near E Big Beaver Rd, Troy, MI 48083
David H.

David H.

Near Washington St SE, Grand Rapids, MI 49503
Jason Z.

Jason Z.

Alarm Systems Inspection

Near Washington St SE, Grand Rapids, MI 49503
George S.

George S.

Near Stephenson Hwy, Troy, MI 48083
Art L.

Art L.

Portable Extinguishers Service Call

Near Monroe Ave NW, Grand Rapids, MI 49503
Terrence J.

Terrence J.

Near W Maple Rd, West Bloomfield Township, MI 48322
Robert G.

Robert G.

Near N Lilley Rd, Canton, MI 48187
Tyler H.

Tyler H.

FACP OFFICE MIANT STORAGE: System took a surge and this caused 3 modules to stop working completely. Device 11, 14, and 16 all showing missing. Modules need to be replaced. Pad-100MIM Also recommend installing a surge protector on the SLC in the 3 buildings that do not currently have any to prevent this from happening again - repair System took a surge and this caused 3 modules to stop working completely. Device 11, 14, and 16 all showing missing. Modules need to be replaced. Pad-100MIM Also recommend installing a surge protector on the SLC in the 3 buildings that do not currently have any to prevent this from happening again

Near Island Ct, Eaton Rapids, MI 48827
Art L.

Art L.

Sprinkler Inspection

Near Enterprise St SE, Grand Rapids, MI 49508
Art L.

Art L.

Portable Extinguishers and Emergency / Exit Lights Inspection

Near Enterprise St SE, Grand Rapids, MI 49508
Zachary B.

Zachary B.

Near Portage Rd, Portage, MI 49002
Robert W.

Robert W.

Near General Motors Rd, Milford Charter Township, MI 48381
Kyle B.

Kyle B.

Near Brown Rd, Auburn Hills, MI 48326
John R.

John R.

Near Enterprise St SE, Grand Rapids, MI 49508
Robert W.

Robert W.

Near General Motors Rd, Milford Charter Township, MI 48381
David H.

David H.

Near Moore St, Greenville, MI 48838
Austin C.

Austin C.

Near W Houghton Lake Dr, Houghton Lake, MI 48629
Matt S.

Matt S.

Near Eureka Rd, Taylor, MI 48180
David H.

David H.

Near Greenville W Dr, Greenville, MI 48838