Adjustable gas combination valve, dual safety shut-off valve (V1+V2)+intermediate servo regulating valve. After being powered on, the two-stage valves open in sequence, and the servo system automatically adjusts the opening to stabilize the outlet pressure. When the power is cut off, the dual valves immediately close and achieve dual safety shut-off.
Response: The longest response lag time is less than 0.5s; the opening of the primary valve is less than 1s; the fast/slow opening of the secondary valve is adjustable (1-30s).
Flexible adjustment: Fast/slow opening is optional, with more stable ignition and smooth load adjustment. It is specially designed for burners, boilers, and industrial heating equipment, integrating dual stage cut-off and voltage regulation. It is the core gas control component of low nitrogen combustion systems.