Page 151 - Applied Process Design For Chemical And Petrochemical Plants Volume II

140 Applied Process Design for Chemical and Petrochemical Plants

4
''Sebn'' ricer "9n" riser
"quarter-turn" cap and flaredcap
-
arrangemenr. frog and wedge key - "snowin" froe and
holddown. stud and ;ut holdaown.

7
W'nh
d to

9 11
Welded-an riser, FixLd riser with
cap centering lugs, "quarter-turn" hex- clinched in "Y" lug
crass bar and hook and wedge key.
and ''mopin" frog.

"Pull-up" riser "Pullup" riser with
to cross bar

pyramidal cap of
welded construe-
- -
wdded to tmy.

Removable redangular cop
and riser and "snapin"fr0g.
=-
Adlustable holddown bar arrangement. riser assembly with re-
movable or fixed riser.
Figure 8-87. Bubble cap and riser design. Used by permission, Glitsch, Inc.