This way if and when temperatures drop below freezing the pipes are not in danger of freezing.
Dry fire sprinkler system diagram.
A fire sprinkler system is an active fire protection method consisting of a water supply system providing adequate pressure and flowrate to a water distribution piping system onto which fire sprinklers are connected.
Evidenced in research and development in the area of dry pipe sprinkler systems it is clear victaulic is committed to increased safety convenience and design flexibility.
Unlike a dry pipe system the pre action valve governs the flow of water.
The sprinkler actuates during a fire causing the air.
Rather a dry fire sprinkler keeps pressurized air and or nitrogen in the non heated portions of the sprinkler pipes.
There are two types of pre action systems.
Viking valves systems.
If a sprinkler opens the air pressure will drop.
The pressure from the air holds a valve closed that has water behind it.
Air supplies related devices.
Model f dry valve trim.
Dry pipe systems should be installed only where heat is not adequate to prevent freezing of water.
This air holds a remote valve known as a dry pipe valve in a closed position.
This is just an indication that there is low air pressure in the system possibly caused by a compressor failure and someone needs to take action before the dry pipe valve trips.
It does not use dry chemicals to suppress a fire.
The water then flows into the piping system and out.
Flow control pressure regulation.
A dry system as defined in nfpa 13 is a sprinkler system employing automatic sprinklers that are attached to a piping system containing air or nitrogen under pressure the release of which as from the opening of a sprinkler permits water pressure to open a valve known as a dry pipe valve.
Located in a heated space the dry pipe valve prevents water from entering the pipe until a fire causes one or more sprinklers to operate.
A dry pipe sprinkler system is one in which pipes are filled with pressurized air or nitrogen rather than water.
When the pressure drops 10psi the ps40 low air switch will trip sending a supervisory signal to the fire alarm panel.
Additional dry system components.
The dry pipe sprinkler system is a fire protection system that utilizes water as an extinguishing agent while the system piping from the dry pipe valve to the automatic fusible sprinklers is filled with pressurized air or nitrogen.
Although historically only used in factories and large commercial buildings systems for homes and small buildings are now available at a cost effective price.
Like dry pipe systems pre action pipes do not hold water within the sprinkler piping and are instead filled with compressed air or nitrogen.
Nowadays dry pipe fire sprinkler systems come in all shapes and sizes but the main function is still avoiding pipe freeze ups and system impairments while providing uncompromising fire protection.
Pre action fire sprinkler systems.
A dry pipe sprinkler system is designed so that the piping itself is filled with pressurized air instead of water explains ken isman vice president of engineering for the national fire sprinkler association.
