Technical Specifications

2 | GE Energy
Numbering System
Table of Contents
Numbering System ............................................................................................2
Micro-flow Control Innovation .....................................................................3
General Data ........................................................................................................4
Materials of Construction .......................................................................... 5-6
Standard Flangeless Varipak ......................................................................................7
Standard Flanged Varipak ...........................................................................................8
Varilog
Anti-Cavitation Varipak .................................................................................9
High Pressure Varipak ................................................................................................10
Bellows Seal Varipak ...................................................................................................11
Cryogenic Varipak ........................................................................................................12
Accessories and Options ........................................................................................... 13
Standard Actuator Options ...................................................................................... 14
Body
Series
28
Construction
Option
Standard
A Angle
BS Bellows seal
EB Cryogenic
HP High pressure
MS Anti-cavitation
SP Special
Adjustable
C
v
0 Undefined
1 Without
2 With
1st
2
1st
2
Suffix2nd 2nd 3rd 4th 5th
Actuator Type
27 Air-to-Close
28 Air-to-Open
8
Actuator Mounting
Position
0 Undefined
1 (*) (**)
2 (**)
3
4
*
Standard actuator
mounting
arrangement
**
Flanged valve
mounting position
Face-to-face =
102 mm (4.02")
0 3.8
1 2.3
2 1.2
3 0.6
4 0.25
5 0.10
6 0.050
7 0.025
8 0.010
9 0.004
Trim
N°
Max.
C
v
Figure 2:
Actuator Mounting Positions
Information contained in this publication is for general information only and
GE reserves the right to modify the contents without prior notice.
No warranty either expressed or implied is either given or intended.
2
3
1
4