Instruction Manual
D103312X012
GX 3-Way Valve and Actuator
August 2011
2
Table 1. Fisher GX 3-Way Valve Specifications
(1)
Specifications EN ASME
Valve Body Sizes DN 25, 40, 50, 80, 100 NPS1,1-1/2,2,3,4
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 Based on ISA 75.08.01, see bulletin 51.1:GX 3-Way 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.
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 Emerson Process Management sales office
for more complete specifications. Provide the product serial number (shown on the nameplate, figure 2) and all other
pertinent information.
WARNING
If you move or work on an actuator installed on a valve with loading pressure applied, keep your hands and tools away from
the stem travel path to avoid personal injury. Be especially careful when removing the stem connector to release all loading
on the actuator stem whether it be from air pressure on the diaphragm or compression in the actuator springs. Likewise
take similar c are when adjusting or removing any optional travel stop. Refer to the relevant actuator Maintenance
Instructions.
If hoisting the valve take care to prevent people from being injured in case the hoist or rigging slips. Be sure to use
adequately sized hoists and chains or slings to handle the valve.
(36 strony)
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