Gate valves and stop valves for the main burner and pilot light of the heating furnace
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This post was last edited by lijianhuai on 2011-11-13 at 13:26. The square box furnace used in our factory’s reaction process has two valves in front of both the main burner and the pilot light, used to control their flow rate – one gate valve and one globe valve connected in series. Why are both a gate valve and a globe valve needed? Are there any particular considerations?
Under normal circumstances, the stop valve is kept fully open, and the size of the corresponding burner is adjusted using a manual valve. The use of two valves is intended to prevent gas leaks into the furnace, which could pose safety hazards!
A gate valve is used to shut off flow, while a stop valve is placed downstream in the pipeline to regulate it.
The gate valve is fully open; the globe valve is used to regulate the flow rate
Agree with the view on floor 4; the stop valve is used to regulate flow
This post was last edited by wenhua8488 on 2011-11-18 at 20:28. Everything mentioned is basically correct; generally, there is a gate valve or ball valve before the process flow, used to cut off the fuel in case of an accident or when the furnace is shut down, and there is a globe valve afterward, used to regulate the pressure of the fuel entering the furnace so that the flame can burn properly.
Do any experts have any academic information regarding the working principle of the eternal light?
Generally, gate valves are used in the same way as stop valves to regulate flow; two valves are employed to prevent leaks after the furnace is shut down
In the process flow, the gate valve serves as a shut-off valve, while the globe valve is used for manually regulating flow