Type 585C Table 6. Type 585C Piston Cylinder Clearance Volumes PISTON AT TOP OF CYLINDER (SPRINGS BELOW PISTON FOR SIZE 25 AND 50) Piston Area
Maximum Actuator Travel
Upper Clearance Volume
Volume Below Piston
Actuator Size
cm2
Inches2
cm
Inches
cm3
Inches3
cm3
Inches3
25
174
27
2.9
1-1/8
104
6.3
1750
107
50
290
46
5.1
2
330
20
5200
320
5.1
2
310
19
2700
163
10
4
310
19
4400
270
20
8
310
19
8200
500
5.1
2
1230
75
7500
460
10.2
4
1230
75
7500
460
20.3
8
1230
75
13300
810
10.2
4
1230
75
7500
460
20.3
8
1230
75
13300
810
10.2
4
1700
104
10700
650
20.3
8
1700
104
19200
1170
10.2
4
4600
280
18500
1130
20.3
8
4600
280
33000
2000
60
360
68
55.5
570
80
88.5
570
88 5 88.5
100
840
130 5 130.5
130
1430
221 5 221.5
PISTON AT BOTTOM OF CYLINDER (SPRINGS ABOVE PISTON FOR SIZE 25 AND 50) Piston Area
Maximum Actuator Travel
Lower Clearance Volume
Volume Above Piston
Actuator Size
cm2
Inches2
cm
Inches
cm3
Inches3
cm3
Inches3
25
174
27
2.9
1-1/8
77
4.7
1790
109
50
300
47
5.1
2
350
22
5200
320
Table 7. Yoke Boss and Valve Stem Diameters 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 1 1-1/4
80
127
5, 5H
25.4 31.8
100
127
5, 5H
25.4 31.8
1 1-1/4
130
127
5, 5H
25.4 31.8
1 1-1/4
Long Stroke
127 178
5H(1) 7
25.4 or 31.8 50.8
1 or 1-1/4 2
1. Heavy actuator to bonnet bolting.
7