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Pre-action / Single or double interlock system

Home    »    Services    »    Fire Protection    »    Types of Systems    »    Pre-action/Single or Double Interlock Systems

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A pre-action system can be considered a single interlock and double interlock system depending on the system intentions and coverage. A single interlock system operates in a similar manner as the dry pipe system. This type of system has one event that must occur before water runs into the system; fire detection from a heat or smoke detector where the pre-action valve opens. A double interlock system has two events that must occur: 1) fire detection from a heat or smoke detector and 2) automatic sprinkler operation. Once one of the above occurs, the pre-action valve operates, allowing water into the system piping, essentially turning a dry system into a wet system. These types of systems are regularly used where unintended activation is not desired such as information sensitive environments.

Commonly used in computer rooms, libraries and record storage.

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Haynes No. 3 and No. 4 Generating Station
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Contact Continental

Home Office :

 4518 South 133rd St. Omaha, NE
 

 

General Info : 

info@continental-fire.com

 

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