The invention discloses a
gas pressure regulator. The
gas pressure regulator comprises a valve body; the valve body comprises a gas inlet, a gas outlet and diversion cavity bodies, a
cutting device and a pressure regulating device are arranged on valve body, and a first
valve seat and a second
valve seat are arranged on the valve body; the first diversion cavity body is formed in the position, located between the gas inlet and the first
valve seat, of the valve body, the second diversion cavity body is formed in the position, located between the first valve seat and the second valve seat, andthe third diversion cavity body is formed in the position, located between the second valve seat and the gas outlet; a first connecting opening is formed in the valve body, the
cutting device is detachably connected to the first connecting opening, the
cutting valve rod of the cutting device is arranged in the first diversion cavity body in a penetrating mode, a cutting valve clack of the cuttingdevice is arranged at the front end of the cutting valve rod, and a second connecting opening is formed in the valve body; and the pressure regulating device is detachably connected to the second connecting opening, the pressure regulating valve rod of the pressure regulating device is arranged in the second diversion cavity body in a penetrating mode, and a pressure regulating valve clack of thepressure regulating device is arranged at the front end of the pressure regulating valve rod. The
gas pressure regulator is simple in structure, convenient to assemble and sensitive in cutting action.