Pressure Gauge Components and Functions FAQ

0:00 Intro
0:08 What is a restrictor screw or throttle plug?
0:30 What is a direct drive gauge?
0:59 Why do pressure gauges need to be liquid filled?
1:18 What is the difference between case fill fluids?
1:41 What is the difference between lens materials?
2:10 Are pressure gauge internals oil-free?

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