1 STNC solenoid valve has excellent quality and long service life, high efficiency, high reliability, high accuracy, convenient installation and good safety.. 2 The world has turned to STNC Pneumatic Products for the quality and service demanded by the most critical of applications. Global leaders of industry require durable components that deliver reliability. Our precision engineered components and designs, deliver outstanding service life and operational longevity.. 3 STNC pneumatic valve is controlled by micro electric signal, with small dimension, large flow, handsome shape, reliable performance and long service life. It can be installed in the integration. It is an ideal directional control element, applicable to the electromechanical integration. There are multiple specifications cations for your choice.