Tamper Flow Switches

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iwire

iwire

Moderator
Staff member
Location
Massachusetts
It depends...

It is not uncommon for me to wire flows with both 6-24 VDC and 120 VAC in the same flow switch.

The DC is connected to the fire alarm panel and the 120 runs a large electric bell outside.
 
P

pye

Member
Flow Switch

Flow Switch

There should be 2 seperate switches on the mechanisim one for switch input to a sensor (TRI in Pyrotronics) and the other for 120 VAC. Like the other gentalman said one is for the fire alarm system and the other for the bell.
 
peter d

peter d

Senior Member
Location
New England
Actually, they are two different things.

A tamper switch is used to communicate to the fire alarm panel if a sprinkler system valve has been closed. It almost always sends a "trouble" signal to the fire alarm panel, and sometimes the fire department itself.

A flow switch is used in a sprinkler system to tell the fire alarm panel if water is moving in the pipe. Water flow could result from a broken pipe or sprinkler head, or an actual fire that has caused a sprinkler to activate. Either way, it sends an alarm signal to the panel, which in turn activates the notification appliances (horns, strobes, bells, etc) and also notifies the fire department.
 
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