Still, several other corrosion processes can also be at work in sprinkler pipes. ... Each double-interlock, preaction sprinkler system is outfitted with several devices : releasing solenoid valve, tamper switch, pressure switch, flow switch, and airanbsp;...
|Title||:||Maintaining Mission Critical Systems in a 24/7 Environment|
|Author||:||Peter M. Curtis|
|Publisher||:||John Wiley & Sons - 2011-09-09|