79. Safety Shutoff Valves, Vent Valves, Valve Proving, and Why You Don't Trust Nobody
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79. Safety Shutoff Valves, Vent Valves, Valve Proving, and Why You Don't Trust Nobody
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Eric Johnson dives deep into safety shutoff valves, covering gas safety shutoff valves, proof of closure, vent valves, and valve proving systems. Perfect for boiler technicians and engineers, this episode clarifies requirements, best practices, and troubleshooting tips.
Chapters
00:00 Introduction to Boiler Safety Shutoff Valves
02:07 What is a Safety Shutoff Valve? Definitions and Terminology
04:12 Components of Safety Shutoff Valves: Valve Body and Actuator
07:02 Requirements for Safety Shutoff Valves in Boilers
08:00 Series Safety Shutoff Valves and Proof of Closure
10:57 Differences in Requirements: CSD1 vs NFPA 85
13:48 Proof of Closure Interlock and Model Numbers
19:57 Additional Safety Devices: Vent Valves and Valve Proving Systems
28:50 How Valve Proving Systems Work
44:07 Leakage Rates and Valve Seat Integrity
50:00 Final Tips and Best Practices for Boiler Safety Valves