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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.
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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.
