Brochure

Added-Value Features

Minimal Deadband - A patented, taper key

ball-to-shaft connection (see ) eliminates

lost motion and minimizes deadband. During

maintenance procedures, this arrangement proves

to be more reliable and easier to assemble than

conventional connections.

Heavy-Duty (HD) Seal - The Fisher patented

heavy-duty ball seal (see ) offers exceptional wear

and pressure drop performance over a wide range of

steam, gas, liquid, and slurry applications. The metal

seal is pressure-balanced, which reduces operating

torques and allows higher pressure drops without

excessive wear.

Easy Seal Replacement and Inspection - Once the

valve is removed from the pipeline, just remove

two screws and the seal assembly (see ) is easily

extracted from the body. No need to disassemble the

valve body or remove the actuator. Metal and soft

seals are fully interchangeable.

Taper key provides solid ball-to-shaft

connection.

6 | Fisher

Vee-Ball

™

Rotary Control Valves

HD metal seal fights off scale

and sludge buildup; inspects

and replaces easily since it

requires no adjustment.

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