Top number indicates valve number, bottom number indicates valve size.
顶部的数字表示阀门编号，底部的数字表示阀门大小。
Very little room was available to get to valve number 1 for emergency operation.
当遇到紧急情况时，就感到没有足够的空间可以接近1号阀门（参见左图）。
This number represents the ANSI class and type of valve desired.
这个型号代表ANSI等级和所需阀门的种类。
Valve size, figure number or description.
阀门通径，型号或规格说明。
NOTE: When ordering, specify ordering Code Number, Kit Number and Valve Size.
注：订购时，请指明订购编号，组建编号和阀门通径。
Complete valve data: figure number and valve size.
完整的阀门参数：型号和阀门通径。
In recent years, a number of emerging safety valve manufacturers.
而在近几年来不断涌现出不少的安全阀厂家。
阀门通径和型号。
Gate, Globe, Angle and Check Valve Figure Number System.
闸阀，截止阀，角阀和止回阀型号编制体系。
Gate, Globe, Angle and Check Valve Figure Number System.
闸阀，截止阀，角阀和止回阀型号编制体系。
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