2 temperature to pressure ratings – Pulsafeeder Corrosion Coupon Rack User Manual
Page 3
72-912-00
3
Revision C
2 Temperature to Pressure Ratings
PVC Temperature to Pressure Ratings
PVC Schedule 80 Industrial Pipe
Operating
Temp (°F)
Operating
Temp (°C)
% Pressure
Derate
Nom. Size
(in)
Maximum
Working
Pressure (PSI)
73
22.8
100%
1/2"
850
80
26.7
88%
3/4"
690
90
32.2
75%
1"
630
100
37.8
62%
110
43.3
51%
120
48.9
40%
130
54.4
31%
140
60.0
22%
CPVC Temperature to Pressure Ratings
CPVC Schedule 80 Industrial Pipe
Operating
Temp (°F)
Operating
Temp (°C)
De-Rating
Factor
Nom. Pipe
Size (in)
Maximum
Working
Pressure (PSI)
80
26.7
100%
1/2"
850
90
32.2
91%
3/4"
690
100
37.8
82%
1"
630
110
43.3
72%
120
48.9
65%
130
54.4
57%
140
60.0
50%
150
65.6
42%
160
71.1
40%
170
76.7
29%
180
82.2
25%
200
93.3
20%
Example:
Material Type
Pipe Size
Temperature
Max W.P.
De-Rating Factor
De-Rated Max
W.P.
CPVC
1/2"
120 °F
850 x 65% =
552.5