Specifications; Educational Services; Installation - Fisher 461 Instruction Manual

461 Valve
June 2017
Table 1. Specifications
Valve Sizes (inlet size x outlet size)
NPS J 2x3, J 3x4, J 4x6, and J 6x8
Shutoff Classification per ANSI/FCI 70-2 and IEC
60534-4
Standard: Class IV
Optional: Class V
Flow Characteristic
Equal percentage Micro-Form flow characteristic in

Specifications

Specifications for the 461 valve are shown in table 1. If the valve is shipped with the actuator, some of the valve
specifications are on the valve nameplate, which is attached to the actuator. If the valve is shipped without the
actuator, the valve nameplate is wired to the valve.

Educational Services

For information on available courses for Fisher 461 valves, 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: education@emerson.com
emerson.com/fishervalvetraining

Installation

WARNING
To avoid personal injury or equipment damage caused by sudden release of pressure, install the valve assembly only where
service conditions will not exceed the limits given on the appropriate nameplate.
Always wear protective gloves, clothing, and eyewear when performing any installation operations to avoid personal
injury.
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.
1. Before installing a 461 valve, inspect it for any foreign material that may have collected during crating or shipping.
2. Check that the pipelines are free of pipe scale, chips, welding slag, and other foreign material.
3. Use accepted piping practices when installing the valve.
2
the 12.7 to 31.8 mm (0.5 to 1.25 inch) port size and a
modified parabolic flow characteristic in the 38.1 to
114.3 mm (1.5 to 4.5 inch) port size.
Flow Direction
Flow down
Packing Arrangement
PTFE and graphite ribbon/filament are available as
standard packing.
Instruction Manual
D100714X012