Butterfly Valves Tricentric Class 600 Valve Characteristics

Tricentric®
Class 600 Valve Characteristics
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PRESSURE/TEMPERATURE RATING

Maximum Temperature Working Pressure, psig
Carbon Steel 316SS
-20 to 100 1,480 1,440
200 1,350 1,240
300 1,315 1,120
400 1,270 1,025
500 1,200 955
600 1,095 900
650 1,075 890
700 1,065 870
750 1,010 855
800 825 845
850 Note A 835
900 830
950 775
1000 700
1050 685
1100 610
1150 475
1200 370
1250 295
1300 235
1350 190
1400 150
1450 115
1500 85

VALVE SEATING/UNSEATING TORQUES

Valve Size Half Rated at 740 psi Full-Rated at 1480 psi
in.-lb. in.-lb.
6 13,000 26,000
8 16,000 32,000
10 25,000 50,000
12 52,500 105,000
14 62,500 125,000
16 75,500 151,000
18 93,000 186,000
20 118,000 235,000
24 170,000 340,000

See notes B,C

Notes:

  • A. Permissible, but not recommended for prolonged usage above 800ºF
  • B. These values may be interpolated on a linear scale for shut-off pressures between 740 psi and 1480 psi.
  • C. Values shown are for preferred direction of shut-off under static differential pressure conditions.

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