Claire Corlett

Fish Food, Fish Tanks, and More
Mounting an Emerson Fisher 667i Actuator

Mounting an Emerson Fisher 667i Actuator


Hi I’m Landon with Spartan Controls and
today I’m going to show you how to mount a Fisher 667i actuator on
to a Fisher sliding stem valve. Like all procedures, we should start off by making
sure we’re wearing proper personal protective equipment for the job at hand.
Before we begin make sure you verify the bench set of your actuator. If you’re
not sure how to do this check for a link in the description below for a video on
how to do that. Next prepare your valve by removing your yoke lock nut and installing your stem nuts. With the valve prepared our next step
will be to prepare the actuator. We’ll do that by removing our stem connecting
block and installing our valves nameplate. With the actuator now prepared, I’ll apply 35 psi regulated air supply to my actuator, moving it to the upper
travel stop and then I will lift and lower my actuator onto my valve assembly. Before I lower my actuator all the way
I’ll install my yoke lock nut and indicator disc. Now I can lower my
actuator the rest of the way and then tighten down my yoke lock nut. With that snugged up, I will now align my
actuator up at the valve and tighten the yoke lock nut down using a hammer and
flat chisel. Next we’re gonna verify that our valve is in a fully seated position.
To do that I’ll pry up on my valve stem and then fully seat the valve. If you
find it difficult to move the valve stem feel free to loosen your packing nuts.
With the valve fully seated I can now line up my indicator disc with
my travel scale’s fully closed position and then pry up on my valve stem, moving
the valve to its full rated travel position. With the valve at it’s full travel, I’ll move
my stem nuts out of the way and install my connecting block. Now with the connecting block tightened,
I will now tighten my stem nut up to my indicator disc and tighten them tight
against my connecting blocks. Lastly I’ll adjust my travel scale to
match up with a fully open position. The only thing left to do at this point
is to remove our actuator’s air supply and verify that the actuator travels
the correct distance. And that concludes our overview on
how to mount a Fisher 667i actuator onto a Fisher sliding stem valve. Thanks for
watching.

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