TDW PIG-SIG V - Page 15

10
Section II – Introduction
C. Pressure-Temperature Ratings (for Design Factor F). (Refer to Table
5.)
Table 5. Pressure-Temperature Ratings for PIG-SIG V THREAD-O-
RING Nipple*
†
Temp
(° F)
Temp
(° C)
Piping Code
B31.3
B31.4
B31.8
–
F=.72
F=.72
F=.60
F=.50
F=.40
-50
-46
3159
-20 to
250
†
-29 to
121
3743 3743 3120 2600 2080
300
†
149
3620
3017
2514
2011
350
†
177
3493
2911
2425
1940
400
†
204
3369
2808
2340
1872
450
†
232
3072
3246
2246
1872
1497
500
†
260
2985
* Pressures are in pounds per square inch, gauge (psig). Ratings do not include
allowance for corrosion.
†
Due to magnet degradation, the temperature for the plug assembly is limited to
200
° F (93° C).
NOTE
:
O
-ring material selection must be suitable for service fluids and temperature
requirements.