the threads tight, the valve outlet must be facing the
The outlet assembly consists of an elbow,
fabricated, made up with a flange, inside, cast iron,
and a gasket installed inside the tank An adapter,
fabricated, steel pipe, made up with a flange, outside,
cast iron, and a gasket are installed outside the tank
The outlet end of the adapter is sealed with a cap
(malleable iron), held in place by a bolted split
coupling (malleable iron). The adapter and elbow are
bolted together through the side of the tank.
Cleanout Cover and Frame
Special bolt channels are installed inside the
tank at the top and sides of the cleanout opening.
Gaskets are installed over the bolts outside the tank.
The frame is a fabricated, rectangular shaped,
flanged steel sheet that is flanged all of the way
around, both front and back. The back flanges are
radiused to fit the outside of the tank. The holes in
the bottom flange are punched to fit the tank chime.
Figure 9-24.Bolts installed at cleanout
The cleanout cover is a flat, rectangular steel
sheet. Two formed, round steel handles are welded
the outside face of the sheet.
HORIZONTAL CHANNEL.Place the bolt
channel above the cleanout opening inside the stave
(fig. 9-24, #l). Insert 1/2- by 1 l/4-inch bolts through
all of the bolt holes. Be sure the bolt heads are square
in the channel. Install the gasket along the full
length of the top seam outside the stave. Allow a one
bolt ho overlap at each end.
VERTICAL CHANNEL. Each side seam the
cleanout opening consists of one vertical row bolt
holes. Place a bolt channel inside the tank on each
row of bolt holes. Insert the bolts through all of the
bolt holes. Be sure the bolt heads are square in the
channels. Install the gasket along the full length each
row of bolts. Pass the gaskets over the top sea gasket.
Allow a one bolt hole overlap at each en Apply a
heavy coating of sealing putty at the overlap of the
top and vertical seam gaskets. Install the radii gasket
under the vertical seam gaskets at the bottom chime
of the stave.
CLEANOUT FRAME.To assist in the
installation of the cleanout frame (fig. 9-25, #2), push
all of the chime bolts flush with the gasket on the
chime of the bottom to provide clearance for sliding
Figure 9-25.Cleanout cover installed.