用于H.P.预热器的旁路系统的快速反应两通，三通阀。
- 专为高压预加热器旁路系统设计
- 通过管道内部介质实现液压自驱动
- 运行速度由外部的调节阀门控制
- 可手动操作带锁定装置
- 压力等级：Class 900-1500-2500 和特殊等级
- 通径最大到18"

Quick Acting Automatic 3- and 2- way Valves
- Designed for H.P.preheaters bypass systems.
- Hydraulically self-actuated by the process media.
- Operating speed controlled by an external regulating valve.
- Manual operation with locking device.
- ASME Class 900-1500-2500 and special Classes.
- Nominal diameters up to 18" sizes.