Q22HD-40, Q22HD-40, Q22HD-40, Q22HD-50, in front of the Q22HD series number, followed by the number of Q22HD series of gas control valve, the main models are Q22HD-15, Q22HD- Threaded interface, to facilitate customers to buy different products. Q22HD series of gas control valve start low pressure, high sensitivity, can be quickly closed, good sealing performance, import direction can be free. Q22HD series of gas control valve is divided into a variety of structures, is widely used in food, medicine, petrochemical and other mechanical equipment on the other.