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6.2.3 Gas Trains
6.2.3.1 Standard Gas Train - 1000
32
8
6  | 7  | 
5
41
9
No.Part
1.Main Gas Shutoff Cock
2.Main Gas Valve Actuator
3.Main Gas Valve
4.Air/Gas Ratio Control
5.Low Gas Pressure Switch
6.High Gas Pressure Switch
7.Leak Test Valve
8.Pilot Gas Cock
9.Vent Filter
45