Design 461
Instruction Manual
Fisher Controls
Design 461 Anti-Coke Valve Body (FISHEBj
May 1981
Form 5170
INTRODUCTION Scope Of Manual This instruction manual provides installation, maintenance, and parts ordering information for the Design 461 anti-coke valve body. Information regarding actuators and other accessories can be found in separate instruction manuals. Description The Design 461 is a self-cleaning, increased-outlet, angle-style valve body. It is specifically designed to control the flow of erosive or sticky fluids while preventing particle build-up on internal valve parts. It is used in both throttling and on-off applications. Because of its venturi-type outlet, the Design 461 valve body is often chosen for applications where flashing is a problem. 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. 1.
Before installing a Design 461 valve body, inspect it for any foreign material that may have collected during crating or shipping.
2.
Check that the pipelines other foreign material.
8
Fisher
Controls
are free
Company 1981; All
of pipe
Rights
scale,
Reserved
chips,
welding
slag,
and