Page 124 - Valve Selection Handbook
P. 124
Manual Valves 111
Figure 3-68. Different Types of Body Construction and Body Tapping Locations.
(Reprinted from BS 5159: 1974, Courtesy of British Standards Institution.)
of the face-to-face dimensions of gate valves, the face-to-face dimen-
sions of regular-pattern plug valves were adopted.
Thus, there is a short and a long series of ball valves for class 150, and
in sizes DN 200 (NFS 8) through DN 300 (NFS 12), and for class 300—
one for reduced-bore and one for full-bore ball valves, respectively. In
the case of the higher-pressure ratings, the face-to-face dimensions of
