answersLogoWhite

0

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

User Avatar

Wiki User

13y ago

What else can I help you with?

Related Questions

What is a sprinkler system for a house?

A sprinkler system is a device that waters your plants or grass


What is the purpose of a sprinkler head plug and how is it used in a sprinkler system?

A sprinkler head plug is used to block off a sprinkler head in a sprinkler system. It is typically used when a sprinkler head needs to be temporarily removed or replaced. The plug prevents water from flowing out of the system through the open hole where the sprinkler head would normally be.


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.


What is the function of the sprinkler system control valve?

The function of the sprinkler system control valve is to regulate the flow of water to the sprinkler system, allowing for the system to be turned on and off as needed to water the designated area.


What is the purpose of a sprinkler system blowout adapter and how is it used to winterize a sprinkler system?

A sprinkler system blowout adapter is used to remove water from a sprinkler system to prevent freezing during winter. It is connected to an air compressor to blow out any remaining water in the system, ensuring that no water is left to freeze and potentially damage the pipes or sprinkler heads.


How does a sprinkler valve work to control the flow of water in a sprinkler system?

A sprinkler valve works by opening and closing to control the flow of water in a sprinkler system. When the valve is open, water is allowed to flow through the system and reach the sprinkler heads, which then spray water onto the desired area. When the valve is closed, water flow is stopped, preventing water from reaching the sprinkler heads. This allows for precise control over when and where water is distributed in the sprinkler system.


What is the purpose of the sprinkler system cap and how does it contribute to the overall functionality of the system?

The purpose of the sprinkler system cap is to cover and protect the sprinkler head from damage and debris. It helps maintain the integrity of the system by ensuring that the sprinkler head remains functional and can effectively distribute water in case of a fire emergency.


Where is the sprinkler irrigation system found?

Sprinkler irrigation is mostly found in farms.


What is the function of a control valve in a sprinkler system?

A control valve in a sprinkler system regulates the flow of water to the sprinkler heads, allowing for precise control over the distribution of water and ensuring efficient operation of the system.


Which type of fire sprinkler system is most common and easiest to install?

Wet pipe sprinkler


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)