标准摘要
[中文适用范围]： 本文件规定了公称孔径为 16 mm 至 200 mm 的刀口法兰真空管道配件（弯头、三通和四通）的安装尺寸。 [外文原描述]： This document specifies mounting dimensions for vacuum pipeline fittings (elbows, tees and crosses) of knife-edge flanges for nominal bores from 16 mm to 200 mm.
英文名称Vacuum technology — Mounting dimensions of pipeline fittings — Part 2: Knife-edge flange type