Wet-Pipe Sprinkler Systems

Wet-pipe fire suppression systems are designed and installed by licensed fire-protection contractors based on the building professional's or engineer’s determination of the hazards.

Wet-Pipe Sprinkler System Advantages

• They are simple and reliable. Wet pipe sprinkler systems have the least number of components and, therefore, the lowest number of items to malfunction. The fewer the components, the more reliable a system generally is. This is extremely important, because the system must be in readiness at all times, yet it may not be called upon to perform for many years after installation.
• Installation costs are relatively low. Because of this, wet-pipe systems require the least amount of capital and time for installation.
• Maintenance costs are lower. Since there are fewer components in these systems, they cost less to maintain.
• 系统在重新设计的情况下，自动地进行测试。为了修改设计，使系统的供水必须被关闭和管道排出。当再填充管道和返回到服务之前，必须将系统加压并再次测试。
• Less time out of service following a fire. For the most part, the system is made ready again by simply replacing the sprinkler heads which have had their fusible link melted during the fire. Once these are replaced, the system may be filled, tested, and returned to useful service.

Wet-Pipe Sprinkler System Disadvantages

• Not suited for areas exposed to outside air and freezing temperatures. If sprinkler piping must run in spaces under these circumstances, then provision must be made to prevent the pipes from freezing. This may be resolved by providing heat to the area in which the exposure occurs or by switching to a dry-pipe system in the area subject to freezing. Either of these solutions adds cost to the job. In addition, if an area is subject to severe impact, then damage could occur and cause a leak.