Minimax Fire Protection Water Motor Alarms are mechanical devices actuated by water flow. They are designed to sound a continuous alarm while a sprinkler system operates. An alarm is a required component of every sprinkler system having more than 20 sprinklers. Water motor alarm features include:
- Tapped 3/4" NPT on the inlet and 1" NPT on the drain outlet.
- The Water Motor Alarm package includes a drive shaft 16-3/4" long for walls 14" thick or less. A special extension shaft is available for walls up to 30-1/4" thick.
- The package also includes the required 3/4" NPT strainer for installation on the alarm line.
- Rated water working pressures: Model MA5 - 300 PSI