Maximum effective cross-sectional area 2.0-17.5mm²
	The minimum distance of the operating torque is 0.004~0.1N. m
	Outer diameter of pipeline Φ 4 incidents
	When the rotary knob of the 3-way valve is closed, residual gas is discharged from side A (there is no exhaust port in the valve body, and it is discharged along the knob structure)