Direct heating type combustion system

1. Gas pressure to adjust the manager, measurement and safety system

2. Ball valve

3. Gas solenoid valve

4. Air-fuel ratio valve by gas solenoid valves

5. Manual adjustment cock

6. Corrugated pipe connected components

7. Gas burner

8. Combustion fan

9. Orifice plate by differential pressure switch

10. Pressure switch

11. Take the pressure gauge protection button

12. Air butterfly valve by electric actuators

13. The air flow regulating butterfly valve

14. Ignition transformers and burner to be automatic controller