Control valves should be sized for the 70° open flow rate.
Table 1
Table 2
cfh at 1” wc pressure drop (70°F air) and 0.25 psi upstream
Valves fully closed, 0.25 psi upstream, 1156 at 70°F and 1146 at 250°F
Leak Rate (cfh)
Flow Rate (cfh) Wide Open
70° Open
Valve Size
Valve Size
Flow Rate (cfh)
1156
1146
-6 (3”) -7 (4”) -8 (6”) -9 (8”)
341 373 672 943 1159 1410
369 600
-6 (3”) -7 (4”) -8 (6”) -9 (8”)
9650 14300 35000 56000 88500 137000 195000 254000 320000 404000 498000
18500 27200 60000 125000 202000 303000 400000 530000 670000 845000 1040000
1300 2268 3460 5087 7005 9000 10961 13722 16913
-10 (10”) -12 (12”) -14 (14”) -16 (16”) -18 (18”) -20 (20”) -22 (22”)
-10 (10”) -12 (12”) -14 (14”) -16 (16”) -18 (18”) -20 (20”) -22 (22”)
1929 2494 3337 3349 5276
POSITIONER WIRING
2052
EP2
EARTH GROUND
TALK -
TALK +
LOOP + LOOP -
GROUND
- Terminals +11 and -12 used for 4-20mA Analog Input - Terminals +31 and -32 usde for 4-20MA Feedback Loop
SAFETY GROUND
Notes: Installations are to be completed by qualified personnel only. Wiring must meet all applicable electrical codes.
Bulletin 1156/46/2052-EP2 page 3
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