根据腐蚀性流体介质、卫生洁净流体介质和超纯净生产工艺的需要设计制造的蝶阀。设计上的独特优点，以及众多的备选件，使得Sure Seal（稳密）LBF衬里蝶阀能够为化工及其他工业应用领域提供高性能的服务。

Designed and engineered for demanding applications in corrosive, sanitary and ultra-pure processes. Unique benefits in design and a wide range of options allows the Sure Seal LBF lined butterfly valve to provide superior service to the chemical and industrial market.

特点与优点
Features and Benefits

• 无泄漏，360度径向辐射状均匀负荷，增强弹性材质，使得衬里与阀瓣外表所承受的压力均匀一致，从而确保实现绝对气密性关闭功能
  Non-wetted, 360 degree radially -loaded, elastometric energizer is engineered to provide uniform pressure to the outer circumference of the liner and disc, ensuring absolute bubble tight shut-off
• 独特的球形阀瓣与衬里，避免经典常规衬里蝶阀容易出现的轴向冷流和变形难题，因此产生可靠、免维护、环保安全的阀杆密封效果
  Unique, spherically-shaped disc and liner eliminates the axial cold flow and deformation problems typical of conventional lined butterfly valves, resulting in a reliable, maintenance-free, environmentally safe stem seal
• 阀瓣旋转能够轻松适配聚四氟乙烯和其他氟聚合体材料衬里的管道系统，以及其他金属衬里和非金属衬里管道系统，因此在安装过程中，不再需要垫片或衬垫
  The disc swing is compatible with PTFE and other fluoropolymer-lined piping systems as well as other metallic, lined and non-metallic piping systems, resulting in the elimination of spacers during installation
• 配置ISO 5211标准安装法兰，可以直接安装执行器，不会产生迟滞后果，也避免了其他昂贵的自动化部件
  ISO 5211 mounting flange allows the direct mounting of actuators, eliminating hysteresis and costly automation hardware
• LBF衬里蝶阀设计结构特征就是球形模铸和机加工、全衬里密封面，采用一系列同轴锯齿技术牢靠的固定在阀体表面，因此减少径向冷流
  LBF design features spherically-molded and machined, wide-liner sealing surfaces that are securely anchored within the faces of the valve body by a series of concentric serrations, resulting in the reduction of radial cold flow
• 坚固耐用的阀体结构设计，强度和将要连接的法兰规格PN10/16的对接法兰一样坚固，避免产生偏转挠曲问题，改善法兰密封性能
  Robust body construction is designed to be as strong as the PN10/16 counter flanges to which it will fastened - eliminating deflection problems and resulting in improved flange sealing properties
• 外部采用聚酯聚氨酯粉末涂覆，实现防腐保护作用
  Polyester Polyurethane powder coating for external corrosion protection
• 特别适用于氯气应用领域
  Ideally suited for chlorine gas service

附件
Accessories

Sure Seal（稳密）Sure Torque™（稳劲）系列在当今市场中表现突出。

Sure Seal’s Sure Torque™ Series is a proven winner in today’s market.

• 可提供ISO 5211尺寸标准，执行器驱动端可以直接安装在Sure Seal（稳密）蝶阀上
  Available in ISO 5211 Dimensional Standards, the actuator drive side directly mounts to Sure Seal Butterflt Valves
• SureTorque™活塞采用压铸铝，驱动齿轮则采用碳钢材质，并加以化学镀镍
  SureTorque™ pistons are diecast aluminum and the pinion is carbon steel, electroless nickel plated
• 所有SureTorque™执行器，包括双动及弹簧复位，都可以容易地现场更换，只需要将准确数量的弹簧腔插入到双动装置即可，无需庞大笨重的外壳附件，减轻重量，减少空间
  All SureTorque™ actuators can be easily field converted from double acting to spring return by inserting the correct number of spring cartridges to the double acting unit, thus eliminating bulky housing extensions, saving weight and space
• SureTorque™系列ST还可以提供多种附件
  The SureTorque™ Series ST is available with a variety of accessories