Instruction Manual
D103312X012
GX 3-Way Valve and Actuator
July 2017
2
Table 1. Fisher GX 3‐Way Valve Specifications
(1)
Specifications
EN
ASME
Valve Body Sizes
DN 25, 40, 50, 80, 100
NPS 1, 1‐1/2, 2, 3, 4
Pressure Rating
PN 10 / 16 / 25 / 40 per EN 1092‐1
CL150 / 300 per ASME B16.34
End Connections
Flanged raised face per EN 1092‐1
Flanged raised face per ASME B16.5
Valve Body Materials
1.0619 steel
ASME SA216 WCC steel
1.4409 stainless steel
ASME SA351 CF3M stainless steel
Bonnet Materials
1.4409 stainless steel / CoCr‐A
ASME SA351 CF3M SST / CoCr‐A
Face‐to‐Face Dimensions
for details
Shutoff per IEC 60534‐4 and
ANSI/FCI 70‐2
Metal seat ‐ Class IV (standard)
Side port common high temperature construction:
Metal seat - Class IV for bottom seat, Class II for upper seat
Flow Direction
Converging and Diverging
Trim Style
Type
Plug Style
Type
Side‐Port Common
All sizes
Unbalanced Port‐Guided
Bottom‐Port Common
All sizes
Balanced Cage‐Guided
1. Stainless steel valve body is recommended for steam service when the high temperature (HT) construction is selected.
Educational Services
For information on available courses for the Fisher GX 3-Way control valve and actuator system, as well as a variety of
other products, contact:
Emerson Automation Solutions
Educational Services - Registration
Phone: 1-641-754-3771 or 1-800-338-8158
E-mail: [email protected]
emerson.com/fishervalvetraining
Valve Installation
WARNING
Always wear protective gloves, clothing, and eyewear when performing any installation operations to avoid personal
injury.
Personal injury or equipment damage caused by sudden release of pressure or bursting of pressure retaining parts might
result if service conditions exceed those for which the product was intended. To avoid injury or damage, provide a relief
valve for over pressure protection as required by government or accepted industry codes and good engineering practices.
Check with your process or safety engineer for any additional measures that must be taken to protect against process
media.
If installing into an existing application, also refer to the WARNING at the beginning of the Maintenance section in this
instruction manual.
CAUTION
This valve is intended for a specific range of pressures, temperatures and other application specifications. Applying
different pressure and temperatures to the valve could result in parts damage, malfunction of the control valve or loss of
control of the process.
Do not expose this product to service conditions or variables other than those for which the product was
intended.
If you are not sure what these conditions are you should contact your
or Local Business
Partner for more complete specifications. Provide the product serial number (shown on the nameplate, figure 2) and all
other pertinent information.