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:
- The system was properly designed to account for the friction loss of the devices
- 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…]
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…]
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