Parts of a Sprinkler System
- zurithsafety
- Dec 27, 2018
- 1 min read
Updated: Jan 10, 2019
OS&Y- Outside Stem and Yoke
PIV- Post Indicator Valve
Main Control Valve- Controls water for whole system
Main Drain- Drains System
Inspector Test- Tests system
Alarms- Waterflow or Air Alarms
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