QDC series no-lubricated solenoid valve is a new product, basing on foreign technology. Compact, lightweight, quick acting, low power consumption, good performance, integral mounting. It is the most compact valve compared with similar homemade products of the same orifice and can be directly controlled by micro-electric signal and applies to machine-electricity integration area. Extensive usage in various pneumatic control systems, ideal for use in electricity, medicine, food package area that required cleanness and no pollution.