Understanding a Flow Switch in a Wet Pipe Fire Sprinkler System

An explanation of how a flow switch works in a Wet Pipe Fire Sprinkler System.

[franksam]

Excellent Concise Great to use for an example to others learning. Thank You

[cesarzavala]

Alaboutfire protection. Is there a video of how to install it

[dennispham]

If i have a post indicator valve before a new on-site fire hydrant only, will i need a flow switch?

[BUBBLEGUMVID]

Hi, May I see how it connected from elv currrent supply?

[Wolf-rgih]

If I want to do F s head change how do I stop 🛑 the ringing bell 🛎️ ?

[alexisvillafranca]

What tool did you used to remove the waterflow cover?

[rockafellarockafella]

So this is different from a tamper switch correct?

[austinhologroski]

How do you get it so it won't sound an alarm when filling?

[ween]

The alarm won't trip no matter what if it's got hard water build up. Trust me on this, today I'm an expert, mine was so damaged by calcium build up it snapped the screws holding the valve to the box clean off.

[fitter]

You absolutely CANNOT get an alarm when draining a system down through the main drain. The micro switch inside the water flow ONLY activated when a water flow is simulated to pull the paddle. Hence the reason they put test and drains after the flow switch.

[dgodziinski]

Learn your job ....a flow switch will NEVER sound an alarm when the water is