Pre-Action Sprinkler Systems

What is a Pre-Action Sprinkler System?

A pre-action fire sprinkler system is a type of sprinkler that requires a two-step process in order to discharge. These systems work well in areas where accidental discharge needs to be prevented.

How a Pre-Action Sprinkler Works

Pre-action fire sprinklers are a dry sprinkler system, water is not contained in the pipes but is held back by a pre-action valve. Pre-action valves are electrically operated valve that is activated by heat, smoke or flame. The steps for activation of a pre-action sprinkler system are:

  1. A fire is detected, and the pre-action valve opens, allowing water to flow into the sprinkler pipes. At this point, the sprinkler system is now a wet pipe sprinkler system.
  2. Each fire sprinkler head is opened individually. The sprinkler head must be activated to release water onto the affected area.

Things to Consider About Pre-Action Systems

There are some things that should be considered when it comes to pre-action systems.

  • Pre-action sprinkler systems work well in areas with sensitive assets and equipment where accidental discharge needs to be prevented due to their 2-step activation process.
  • A pre-action system is often more costly to install than a traditional sprinkler system because it is more complex.
  • This system is also more difficult and costly to maintain because it has additional components and is more complex.
  • Pre-action sprinklers can be designed to have pressurized nitrogen or air within the pipes to keep the water in place if the valve is accidentally opened. This form of pre-action system is most commonly found in freezer warehouses.

Common Applications for Pre-Action Systems

Pre-action fire sprinkler systems have the benefit of reduced risk of accidental discharge because of this, they are a great option for water sensitive environments. Some common applications for pre-action sprinkler systems include:

  • Museums
  • Freezer warehouses
  • Data centers
  • Archives
  • Libraries
  • Computer rooms
  • Telecommunications centers
  • Process control rooms

Work with WSFP for Pre-Action Systems

Western States Fire Protection can design and install pre-action sprinkler systems for your water sensitive applications. We have technicians that are qualified to install a pre-action system that will protect your assets and meet NFPA standards. After installation, Western States can provide ongoing services such as inspections, testing and repairs for your pre-action sprinkler system. We are a full-service fire protection contractor that provides 24-hour emergency service.

If you are interested in working with Western States to install a pre-action fire sprinkler system, contact us today.

Fire Alarm & Building Monitoring

Security & Fire Alarm Monitoring

Fire alarm and security monitoring can give you the peace of mind that your building is protected around the clock. With a monitoring system, you will have live operators 24 hours a day that are ready to respond to an emergency in your facility. WSFP provides fire alarm and building monitoring so that your facility can get attention quickly if there is a fire, burglary, medical or other emergency.

UL Listed Monitoring Facilities

WSFP’s UL Listed Monitoring facilities have the latest in modern technology to make sure that we’re ready for the emergency signals your systems will send. Not only do we have the latest in computer automation equipment, but these systems have system redundancy, meaning they are backed up by a fully operational computer system in the event our main system should malfunction.

Western States owns and operates its own AES radio network in the Phoenix area. This allows for faster communication and a more secure network. Response time will be quicker, and issues will be noted quicker with the ability to make the repairs much faster.

Monitoring Features

  • 24hr Central Station
  • Live Professional Operators
  • Two-Way Voice
  • com Interactive Monitoring
  • Smoke, Heat, Carbon Monoxide
  • Video Verification
  • Managed Access Control

Security Monitoring Applications

  • Burglary
  • Fire
  • Residential
  • Panic/Hold-Up
  • Silent Duress
  • Medical
  • Supervised Openings/Closing
  • Critical process alarms
  • Hold-up alarms
  • Openings and closings
  • Temperature alarms

We provide radio, cellular, and telephone-based monitoring systems for residential, industrial and commercial facilities are available.

Complete Life Safety Systems from WSFP

Partner with Western States for a complete life safety system for your facility. In addition to fire and building monitoring, we can also protect your building occupants through the installation of a fire protection system. We install fire sprinkler, suppression and alarm systems. The experienced technicians at WSFP can also provide inspections and testing for all your life safety systems. If you are interested in a monitoring system from Western States, contact us today for more information!