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APPENDIX C — Reference Tables & Figures
Bank Movement Clearances
Table 3 | Obstacle Clearance
Obstacle Clearances Needed
# of Panels from
Fixed Panel:
1
2
3
4
5
6
7
8
Plumbing Heat and Pressure Tolerances
Table 4 | CPVC vs. PVC
Temperature
[°F]
CPVC Pressure
[psi]
PVC Pressure
[psi]
Permissible Obstacle
Clearance (in):
1/4
1/2
3/4
1
1-1/4
1-1/2
1-3/4
2
Maximum pressures that CPVC and PVC piping can withstand at higher
temperatures
80
90
100
110
280
255
230
202
246
210
174
143
Under normal movement of a bank, each Panel will have an incremental
growth and contraction factor of 1/4" for each Panel away from the fix-
mounted Panel in the bank. The body of the manual suggests a 2" obstacle
clearance for installation. Use this table in cases where less than 2" nominal
may be needed.
For example, if there is an obstacle on the right of the second Panel to the
right of the fixed Panel (2 Panel gaps), there should be 1/2" clearance from the
obstacle.
.
120
130
140
182
160
140
112
86.8
61.6
* Systems must be rated to a minimum of 30 psi at the bottom header.
150
160
170
180
118
106
81.2
70.0
41.3
24.2*
10.1*
-
®
31
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