Posts tagged as:

Automatic Sprinklers

Flexible Arm Over

Flexible Armover Attachments

Sprinkler systems have seen an increase in the use of specifically listed equipment.  Flexible arm-overs serve a great purpose in sprinkler system installation but are heavily depended on proper installation per the manufacture listing requirements.

If you look at the first picture above you may say “Well it truly depends!”  So lets make a couple of assumptions:

  1. The system was properly designed to account for the friction loss of the devices
  2. The flexible armover is listed for use on sprinkler systems

So the question is, does this meet code…. oh and take a look at [click to continue…]

{ 11 comments }

Back flow Devices Need to be Tested at Full Flow

Backflow devices are intended to prevent that nasty sprinkler water from going into your drinking water.  These devices need some tender loving care in order to operate efficiently and test must be conducted to ensure they can open to meet the system demand.  In the 2002 edition of National Fire Protection Association (NFPA) 13, Standard for the Installation of Automatic Fire Sprinkler Systems, a testing requirement was added for the forward flow testing of back-flow devices.

In fire protection systems, the back flow device is installed below the system control valves and can be the cause of reduced flow for the system.  Reduced flow can occur if the system is not properly designed to include the device or tested to ensure the system flow is not reduced.  The [click to continue…]

{ 5 comments }

Thumbnail image for Fire Pumps and Backflow Devices

Fire Pumps and Backflow Devices

What is the best location for back flow devices when a fire pump is utilized?
Automatic sprinkler and standpipe systems may utilize a fire pump for many reasons.  This may be to provide additional pressure to the municipal system, provide pressure for a system which draws from an underground tank or to meet the necessary gpm [...]

Read the full article → Automatic Sprinklers 4 comments
Thumbnail image for Automatic Sprinkler System Checklists and Resources

Automatic Sprinkler System Checklists and Resources

Resources and  Checklists for Plan Review, Inspection, and Design
Automatic sprinkler systems can be complex life safety systems which require maintenance and proper installation.  Automatic sprinkler systems are based on the National Fire Protection Association (NFPA) 13, Standard for Design and Installation of Sprinkler Systems.  Sprinkler systems require proper design, installation, and maintenance (inspection too).
Sprinkler submittals [...]

Read the full article → Automatic Sprinklers 5 comments