The SO/SB Shutoff Regulator is used in the gas line to automatically shut off the fuel when the combustion air or any remote signal pressure drops below a predetermined limit.

• SB切断阀用于燃气管线自动切断燃料，当助燃空气或者任何采样信号的压力低于预设定极限值时，安全且短阀都会自动切断燃料的供应。