Model 133 direct acting regulator is an ideal regulator for industrial and commercial applications, and can also be used to provide fuel gas for boilers or burners and other purposes.The balance system adopted by 133 type pressure regulator enables it to accurately control the supply pressure of fuel gas under the condition of constant fluctuation of inlet pressure, so as to obtain better combustion efficiency.133H, 133L stock standing spot import pressure can reach: 4.1b