范围1。1本标准操作规程适用于使用柔性石墨填料阀杆密封以实现 减少或低排放。1.2本标准实施规程包括适用于ASME B16的尺寸和公差。34号门和 设计有上升不旋转和上升旋转阀杆的截止阀。1.3本标准实施规程适用于使用柔性石墨填料组件作为填料的阀门 一级阀杆密封系统。1.4包括套环（作为其填料系统的一部分）的阀门，以及带有中分接头的无阀盖阀门 密封套不在本标准实施规程的范围内。

SCOPE1.1 This Standard Practice is applicable to valves that use flexible graphite packing stem sealing to achieve reduced or low emissions.1.2 This Standard Practice encompasses dimensions and tolerances applicable to ASME B16.34 gate and globe valves designed with rising non-rotating and rising rotating stems.1.3 This Standard Practice applies to valves in which a flexible graphite packing assembly is used as the primary stem-sealing system.1.4 Valves that include a lantern ring as part of its packing system, and bonnetless valves with split glands, are outside the scope of this Standard Practice.