Instruction Manual
D102087X012
585C Actuator
October 2013
4
Table 2. Fisher 585C Piston C ylinder Clearance Volumes
PISTON AT TOP OF CYLINDER (SPRINGS BELOW PISTON FOR SIZE 25 AND 50)
Actuator
Size
Piston Area MaximumActuatorTravel Upper Clearance Volume Volume Below Piston
cm
2
Inches
2
cm Inches cm
3
Inches
3
cm
3
Inches
3
25 168 26 2.9 1.125 104 6.3 1750 107
50 303 47 5.1 2 330 20 5200 320
60 358 55.5
5.1 2 310 19 2700 163
10 4 310 19 4400 270
20 8 310 19 8200 500
68 571 88.5
5.1 2 1230 75 7500 460
10.2 4 1230 75 7500 460
20.3 8 1230 75 13300 810
80 571 88.5
10.2 4 1230 75 7500 460
20.3 8 1230 75 13300 810
100 842 130.5
10.2 4 1700 104 10700 650
20.3 8 1700 104 19200 1170
130 1430 221.5
10.2 4 4600 280 18500 1130
20.3 8 4600 280 33000 2000
PISTON AT BOTTOM OF CYL INDE R (SPRINGS ABOVE PISTON FOR SIZE 25 AND 50)
Actuator
Size
Piston Area MaximumActuatorTravel Lower Clearance Volume Volume Above Piston
cm
2
Inches
2
cm Inches cm
3
Inches
3
cm
3
Inches
3
25 168 26 2.9 1.125 77 4.7 1790 109
50 303 47 5.1 2 350 22 5200 320
Table3.YokeBossandValveStemDiameters
ACTUATOR SIZE
YOKE BOSS DIAMETER VALVE STEM DIAMETER
mm Inches mm Inches
25
54
71
2-1/8
2-13/16
9.5
12.7
3/8
1/2
50
71
90
2-13/16
3-9/16
12.7
19.1
1/2
3/4
60 90 3-9/16 19.1 3/4
68 90 3-9/16 19.1 3/4
80 127 5, 5H
25.4
31.8
1
1-1/4
100 127 5, 5H
25.4
31.8
1
1-1/4
130 127 5, 5H
25.4
31.8
1
1-1/4
1. Heavy actuator to bonnet bolting.