A common release characteristic of Deluge and Pre-Action systems (regardless of release method) is

A common release characteristic of Deluge and Pre-Action systems (regardless of release method) is

• A. Automatic Release
• B. Manual Release
• C. Electrical Release
• D. Delayed Release

Answer: (B)

In these systems, water is kept out of the piping until a deliberate release action happens. The path for water into the system is opened only when a release command is issued, rather than water flowing freely by itself. In practice, this releasing action is most commonly a manual release of the valve, even though some installations may use automatic or electrical triggers to initiate that release. The key point is that you must perform a release to admit water into the system, which is the shared characteristic of Deluge and Pre-Action setups.

In these systems, water is kept out of the piping until a deliberate release action happens. The path for water into the system is opened only when a release command is issued, rather than water flowing freely by itself. In practice, this releasing action is most commonly a manual release of the valve, even though some installations may use automatic or electrical triggers to initiate that release. The key point is that you must perform a release to admit water into the system, which is the shared characteristic of Deluge and Pre-Action setups.