Getting to Know the Potter PIV Tamper Switch
If you've spent any time working on fire protection systems, you've likely come across the potter piv tamper switch more than a few times. It's one of those essential little components that doesn't get much glory until something goes wrong. Basically, it's the watchdog for your Post Indicator Valve (PIV). Since those valves control the main water supply for fire sprinkler systems, knowing whether they're open or closed isn't just a good idea—it's a life-safety requirement. ...