原文：
刀型闸阀产品使用中注意事项及其特点：刀型闸阀的启闭件是闸板，闸板的运动方向与流体方向相垂直，刀型闸阀只能作全开和全关，不能作调节和节流。闸板有两个密封面，最常用的模式闸板阀的两个密封面形成楔形、楔形角随阀门参数而异，通常为50，楔式刀型闸阀的闸板可以做成一个整体，叫做刚性闸板；也可以做成能产生微量变形的闸板，以改善其工艺性，弥补密封面角度在加工过程中产生的偏差，这种闸板叫做弹性闸板刀型闸阀关闭时，密封面可以只依靠介质压力来密封，即依靠介质压力将闸板的密封面压向另一侧的阀座来保证密封面的密封，这就是自密封。大部分刀型闸阀是采用强制密封的，即阀门关闭时，要依靠外力强行将闸板压向阀座，以保证密封面的密封性。 刀闸阀因采用刀型闸板，具有良好的剪切作用，最适宜于浆料、粉粒料、纤维等难以控制的流体，广泛应用于造纸、石化、矿山、排水、食品等行业。具有多种阀座可供选择，并且可依据现场控制需求，配备电动或气动执行器，实现阀门的自动化操作。材质：铸铁、碳钢、不锈钢尺寸范围：DN50～DN600{zd0}压力：1.0MPa刀闸阀因采用刀型闸板，具有良好的剪切作用，最适宜于浆料、粉粒料、纤维等难以控制的流体，广泛应用于造纸、石化、矿山、排水、食品等行业。具有多种阀座可供选择，并且可依据现场控制需求，配备电动或气动执行器，实现阀门的自动化操作。材质：铸铁、碳钢、不锈钢尺寸范围：DN50～DN600{zd0}压力：1.0MPa

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译文：
Knife gate valve product type and characteristics of Attention: knife-type gate valve is a gate opening and closing of cases, the direction of gate movement and fluid perpendicular to the direction of knife-type gate valve can only be fully open and fully closed, can not to regulate and reduce expenditure. Ram has two sealing surface, the most common mode of gate valve sealing surface formed two wedge, wedge angle varies with the valve parameters, usually 50, knife-type gate valve wedge gate can be made into a whole , called the rigid gate; also be made to produce distortion of the gate trace to improve its process of, to make up the sealing surface angle deviations arising during processing, this gate is called the flexible type knife gate valve closed , the sealing surface can only rely on media pressure to seal, in which the medium pressure to ram pressure to the other side of the sealing surface of the valve seat to ensure the sealing surface of theseal, which is a self-sealing. Most knife-type gate valve is sealed by force, that the valve is closed, to rely on external pressure to force the gate to the seat, to ensure the sealing surface of the seal. Knife gate valve is equipped with knife-type gate, has a good shearing, best suited to pulp, powder granules, fibers, etc. difficult to control the fluid, are widely used in papermaking, petrochemical, mining, water, food and other industries. With a variety of seat options, and can be controlled according to site requirements, equipped with electric or pneumatic actuators, valve automation to achieve. Material: cast iron, carbon steel, stainless steel Size range: DN50 ~ DN600 Maximum pressure: 1.0MPa knife knife type gate valve for use with a good shearing, best suited to pulp, powder granules, fibers, etc. difficult to control fluid, are widely used in papermaking, petrochemical, mining, drainage, food and other industries. With a variety of seat options, and can be controlled according to site requirements, equipped with electric or pneumatic actuators, valve automation to achieve. Material: cast iron, carbon steel, stainless steel Size range: DN50 ~ DN600 Maximum pressure: 1.0MPa