Product Description Main features 1. The main control knob is closed, always open flame and
temperature adjustment (MS) position 2. Flame inspection thermocouple device, and with the function of
preventing new start after the fire. (GM) 3. Maximum output air volume adjustment (RO), or 4. Output pressure regulator (PR) 5. Minimum (bypass) air volume adjustment 6. Thermistor (TH) with switch function 7. Normal open flame outlet (RO) with preset air volume adjustment
device 8. Air intake and open flame filter (FL) 9. Pressure monitoring holes at the air inlet and outlet 10. The main air inlet and outlet on both sides of the valve or at
the bottom of the valve 11. The main air pipe interface is threaded pipe body or national
cone pipe