Data Sheet

GX Control Valve and Actuator
D103209X012
Product Bulletin
51.1:GX(S1)
February 2012
19
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)
DN80
-100
(NPS 3 to
4)
46 20
750
2Bar
ULF
28.4
(412)
19.7
(286)
41.5
(602)
51.7
(750)
---
---
51.7
(750)
3.2
(46)
PTFE
31.3
(454)
22.6
(328)
44.3
(643)
750
3Bar
ULF
28.4
(412)
N/A
PTFE
31.3
(454)
750
4Bar
ULF
28.4
(412)
N/A N/A
PTFE
31.3
(454)
DN80
(NPS 3)
70
Bal
20
750
2Bar
ULF
51.7
(750)
51.7
(750)
51.7
(750)
---
---
51.7
(750)
3.2
(46)
PTFE
750
3Bar
ULF
N/A
PTFE
750
4Bar
ULF
N/A N/A
PTFE
DN100
(NPS 4)
90
Bal
20
750
2Bar
ULF
51.7
(750)
46.8
(679)
51.7
(750)
51.7
(750)
---
---
51.7
(750)
3.2
(46)
PTFE
51.7
(750)
750
3Bar
ULF
N/A
PTFE
750
4Bar
ULF
N/A N/A
PTFE