Data Sheet

GX Control Valve and Actuator
D103209X012
Product Bulletin
51.1:GX(S1)
February 2012
18
Table 8. Maximum Pressure Drops with Bellows Bonnet Construction and Low Strength Stem (continued)
Valve
Size
Port
Size
Max
Travel
Actua-
tor
con-
struc-
tion
Packing
Air to
Open
Air to Close
Max nP
Supply pressure Max Pressure Limits
2Bar
(29 psi)
2.5 Bar
(36 psi)
3Bar
(44 psi)
3.44 Bar
(50 psi)
4Bar
(58 psi)
5Bar
(72 psi)
6Bar
(87 psi)
nP
Supply
mm mm
bar
(psi)
bar
(psi)
bar
(psi)
bar
(psi)
bar
(psi)
bar
(psi)
bar
(psi)
bar
(psi)
bar
(psi)
bar
(psi)
DN40
to 50
(NPS 1-1/2
to 2)
36 20
750
2Bar
ULF
48.0
(696)
33.7
(489)
---
---
---
47.9
(695)
2.2
(32)
PTFE
51.7
(750)
39.2
(569)
51.7
(750)
750
3Bar
ULF
48.0
(696)
N/A N/A
PTFE
51.7
(750)
750
4Bar
ULF
48.0
(696)
N/A
PTFE
51.7
(750)
DN50
(NPS 2)
46 20
225
2Bar
ULF
---
9.0
(131)
15.5
(225)
22.0
(319)
27.8
(403)
---
---
31.2
(453)
3.7
(54)
PTFE
12.3
(178)
18.8
(273)
25.4
(368)
31.1
(451)
34.5
(500)
225
3Bar
ULF
9.9
(144)
N/A
15.9
(231)
21.6
(313)
28.9
(419)
30.2
(438)
4.1
(59)
PTFE
13.3
(193)
19.2
(278)
25.0
(363)
32.3
(468)
33.6
(487)
225
4Bar
ULF
17.3
(251)
N/A
28.9
(419)
30.2
(438)
PTFE
20.7
(300)
32.3
(468)
33.6
(487)
750
2Bar
ULF
29.4
(426)
20.7
(300)
---
---
---
29.4
(426)
2.2
(32)
PTFE
32.8
(476)
24.0
(348)
32.7
(474)
750
3Bar
ULF
29.4
(426)
N/A N/A
PTFE
32.8
(476)
750
4Bar
ULF
29.4
(426)
N/A
PTFE
32.8
(476)
DN80
(NPS 3)
36 20
750
2Bar
ULF
46.4
(673)
32.1
(466)
51.7
(750)
51.7
(750)
---
---
51.7
(750)
3.2
(46)
PTFE
51.1
(741)
36.8
(534)
750
3Bar
ULF
46.4
(673)
N/A
PTFE
51.1
(741)
750
4Bar
ULF
46.4
(673)
N/A N/A
PTFE
51.1
(741)
-continued-