INSTALLING DISTRIBUTION PIPING
Hanger Applications
Install the pipe hangers in accordance with good piping
practice as well as the following:
1. Refer to ASME B31.1, “Power Piping Code,” and any
appropriate local codes and standards.
2. A hanger should be installed between fittings when
the fittings are more than 2 ft. (.6 m) apart.
3. A hanger should be installed at a maximum of 1 ft.
(.3 m) from the nozzle. It must be located to keep noz-
zle from moving vertically.
4. The hangers must be UL listed and rigidly supported.
The Hanger Application Table and Figure 6 list some
typical hangers used for different mounting surfaces.
Hanger Application Table
Hanger
Type
Application
No. 1
For attaching to wood beams
No. 2
On level ceilings of sufficient thickness to
permit proper fastening
No. 3
For 2 in. and smaller pipe under sloping
ceilings and roofs
No. 4
For special cases where punching is more
economical than using clamps
No. 5
For sheathed ceilings of wood construction
with sufficient thickness
No. 6
For most cases except where plastering is
done after installation
No. 7
For attaching to concrete beams
No. 8
For attaching to lower flange of beam or truss
No. 9
To keep piping closer to beam than is possible
with clamp and ring
No. 10
Suitable for 3/4 to 2 in. pipe where necessary
to hang pipe at a distance from wall
No. 11
For attaching to channel iron
No. 12
For attaching to bottom of steel beams
FIGURE 6
001875
SECTION VI
UL EX-4510 12-1-01 Page 6-6
Installation
NO. 1
NO. 2
NO. 3
NO. 4
NO. 5
NO. 6
NO. 7
NO. 8
NO. 9
NO. 10
NO. 11
NO. 12
7 IN.
