Diaphragm Seal Accuracy – How Temperature Impacts Pressure Reading

Threaded Diaphragm Seal Temperature Rating

Process Temp °F MWP 1500 psi MWP 2500 psi MWP 5000 psi MWP 10000 psi
-40 to 100 1500 2500 5000 10000
200 1290 2150 4300 8600
300 1175 1950 3900 7800
400 1090 1800 3600 7200
500 1000 1650 3300 6600
650 910 1500 3000 6000

Temperature Dissipation by Diaphragm Seal Mount Type

temperature-dissipation-diaphragm-seal

ANSI B16.5 Flange Rating (Temperature/Pressure)
316SS Process Temp °F Class 150 psi Class 300 psi Class 600 psi Class 1500 psi
-40 to 100 275 720 1440 3600
200 230 600 1200 3000
300 205 540 1080 2700
400 190 495 995 2485
500 170 465 930 2330
650 125 430 860 2150
Carbon Steel -40 to 100 285 740 1480 3705
200 260 675 1350 3375
300 230 655 1315 3280
400 200 635 1270 3170
500 170 600 1200 2995
650 125 535 1075 2685