0
Normally it is filled with compressed air.
A dry sprinkler system is used in areas exposed to temperatures that would freeze water.
When a fire is sensed the soft metal link of a sprinkler head melts , releases the compressed air which in turn opens a valve to a fire main allowing the system to flood with water and extinguish the fire.
Parking ramps in the northern US have dry systems, for example, because of the weather.
Add your answer:
Earn +20 pts
In a lawn irrigation system is a closed loop piping system instead of the dead end piping system for the pop-up oscillating sprinkler heads more effective in preventing heads from emerging from grade?
Heads popping out outof the ground have to do with how well they were installed. Closed loop and "dead end" systems would have no affect on them. Dig them up, re-set them to the height you want and pack dirt around them.
What type of pump is jockey pump?
A jockey pump is a small pump connected to a fire sprinkler system and is intended to maintain pressure in a fire protection piping system to an artificially high level so that the operation of a single fire sprinkler will cause a pressure drop which will be sensed by the fire pump automatic controller, causing the fire pump to start. The jockey pump is essentially a portion of the fire pump's control system.
What is the DWV system?
Drain, Waste and Vent System. It is all of the Drain and Waste piping and their associated vent piping
What are the pros and cons of an underground sprinkler system?
An underground sprinkler system will help your yard to be always have a green and lush lawn and it provides a better convenince.In an underground sprinkler you can always keep track of how long you've watered the area.
When was the sprinkler system invented?
Inventors first began experimenting with automatic sprinklers around 1860. The first automatic sprinkler system was patented by Philip W. Pratt of Abington, MA, in 1872.
What's the difference between a wet and dry fire sprinkler system?
The difference is what the pipes normally contain while standing by for a fire.A wet sprinkler system has pressurized water inside the system 24/7 for extinguishing a fire when any sprinkler head gets hot enough to open.A dry sprinkler system has pressurized air or nitrogen inside the piping. This keeps a dry-valve closed, and water out of the system. When a sprinkler fuses (opens), it allows the air to escape; then the dry valve opens and allows water to enter the system. Wherever there is an opened sprinkler, water will flow through it and put out the fire.Dry systems are used in areas where water filled piping could freeze, such as unheated warehouses, freezers, unheated buildings, etc.Additional precautions can also be taken to avoid accidental flooding when a sprinkler head is damaged. For example, a dry-valve controller may wait for a signal from a fire alarm panel before turning on the water.
How are timers set up in a sprinkler system?
Sprinkler systems can use many components that control the flow of the water. A plastic piping connects the water supply to the electric valves and the sprinkler.
Why does an Automatic dry-pipe fire sprinkler system sometimes have air and sometimes does not?
Being a licensed master plumber and a licensed master fire suppression piping contractor all I can say if a dry system has no air pressure YOU HAVE MAJOR problems and need to have the air pressure replenished
How much water is needed for a sprinkler system?
The most common fire sprinkler system is a wet pipe system wich always has water in it. The sprinkler heads have a heat sensitive element, most commonly a glass bulb filled with liquid that expand when exposed to heat, after a certain temperature is met , usually 160 degrees or more the glass bulb breaks and allows water to flow on the fire in a uniform water density. The sprinkler system may have an alarm device that sounds an audible alarm in the building, and/or call the fire department. The system may have a connection for the fire department to add to the automatic water supply. there are other types of systems, dry-pipe, preaction, and others which are similar but do not have water in the piping initally due to concerns of freezing water in the system, or sensitive areas where accidental water damage would be a greater problem than fire.(museums, computer rooms, etc)
What type of landscape supplies should I purchase to build a raised bed garden?
You'll need some rock bed, a good amount of fertilizer and possibly some sprinkler piping if you have a sprinkler system below ground.
What is preaction sprinkler system?
A sprinkler system employing automatic sprinklers that are attached to a piping system that contains air that might or might not be under pressure, with a supplemental detection system installed in the same areas as the sprinklers. Preaction systems are typically installed in areas where water damage due to accidental discharge of the sprinklers or breakage of the piping is a concern, or damage in the sprinklers and piping due to freezing. There are three types of preaction systems: non-interlock,single interlock, and double interlock. non interlock: water flow to sprinklers upon fused sprinkler or detection single interlock: water flow upon detection Double interlock: water flow only when detection and sprinklers detect fire
What is a dry pipe sprinkler system?
This system is used in a non heated space. Parking garages, warehouses, carports and so on. The system has pressurized air in the pipeing from the sprinlker head to the water source. Water does not enter the system untell a sprinkler head is set off.
What is a sprinkler system for a house?
A sprinkler system is a device that waters your plants or grass
Automatic fire sprinkler system?
An automatic sprinkler system is a system in which sprinkler heads are fixed in piping system were pipe is fully filled with water or air under pressure and, at a certain calibrated temperature, sensing elements in sprinkler head breaks and allows water flow. Other types of systems rely upon electrical sensors (smoke and heat sensors, or manual switches) to initiate the flow or to pressurize the pipe so that sprinkler heads activated by the heat will flow water. Somewhat more rare systems, for extremely high hazards such as rubber tire storage in a warehouse, may have sprinkler heads that are always "open", allowing the entire room to be flooded when the pipe is pressurized.
Will you get a discount on homeowners insurance if you install a sprinkler system?
=== === If its a yard sprinkler, no. If its a fire sprinkler, yes.
How often should you replace freon in home sprinkler system?
There is no freon in a home sprinkler system.
How do you tell if you have a pipe schedule sprinkler system?
Pipe schedule systems were used until hydraulic calculations became the norm in the mid 80's. You can tell if the system is pipe scheduled when the piping sizes decreases as you get farther away from the water source (sprinkler riser). The larger mains will reduce as less branch lines and sprinkjlers are being supplied.
