As a property owner, protecting your investment is imperative. Fire sprinkler systems are a key component to that protection. Despite the name, dry pipe fire sprinkler systems often fail
due to freezing, leaving property owners at risk. A dry pipe sprinkler
system is a specialized system installed in areas that are subject to
freezing, like parking structures or entrance areas. Dry systems are filled
with compressed air while the water is held back within a conditioned
environment. When a sprinkler head’s glass is broken the compressed
air leaks from the activated head which opens the dry valve and fills the
system with water, suppressing the fire.
It is important to check the system’s pressure to confirm that the
compressor is functioning properly and located in an ideal location.
In accordance with Sections 8. 220.127.116.11 and A18.104.22.168.3.5 of NFPA
13 dry or pre-action fire protection systems require auxiliary drains for
each section of trapped pipe. These drains are sometimes referred to
as drum drips or low-point drains. If installed correctly, dry systems will
have auxiliary drains located at every low-point within the system to
collect moisture produced by the compressed air. Routine maintenance
is required to drain the water from the auxiliary drains. Shifting
temperatures, even in milder climates, can cause improperly maintained
auxiliary drains to freeze and break. When the ice that breaks the valve
thaws the system is prematurely tripped leading to expensive system
maintenance; possibly property damage and liability expenses as well.
Now is the time for maintenance and system upgrades that prevent
future failure during the winter months.
AGF’s R&D has discovered that as little as one ounce of water in an
auxiliary drain can result in system failure due to a freeze and break. If
Protect Your Investment, Prepare Your
Dry Fire Sprinkler Systems for Winter