07-04-2011, 10:22 AM
Ratled is correct. We have a similar offsite valve setup at the facility where I work. However ours is nestled in a small structure since we have snow about five months out of the year. It is fire related and our security department open the valves and purge it monthly and it does have an external alarm and flashing strobe that activates when the system is being purged or if the system has been compromised.