Pneumatic gate valve 1, the concept: Pneumatic gate valve is a kind of long stroke cylinder and gate valve composed of economical control valve. 2, Features: Gate valve with a unique hard-point and point angle structure of the traditional gate valve has a breakthrough. It has a long service life, wear-resistant, valve opening full of open accumulation of pulp and impurities, to solve the traditional gate easily stuck defects. 3, Application: Especially suitable for pulp conveying and slagging control, which can be widely used in papermaking, mining, solid-state medium conveying and other industries. 4, Pneumatic gate valve main technical data: Nominal pressure: PN0.6, 1.0, 1.6Mpa Nominal diameter: DN50 ~ 800mm Operating temperature: -40 ~ 180 ℃ Air pressure: 0.4 ~ 0.7Mpa Leakage: ≤ 104 * Flow coefficient with hand wheel body material cast steel