Flowserve APEX A9000 Accord Manuel d'utilisateur télécharger pdf (Page 12)

7.3 Mounting

NOTE. If the positioner is installed in a hazardous environment, it must be of a type approved for this purpose.

The Apex A9000 positioner, all versions, has an ISO F05 footprint, A. The holes are used to attach the Apex A9000 to

the mounting bracket B. Please contact Flowserve or your local distributor representative with actuator specifics for the

proper mounting bracket and hardware.

It is important that the positioner’s spindle, that transfer the actuator movements, are correctly mounted. Any tension

between these parts can cause incorrect operation and abnormal wear.

Assembly Example:

Rotary actuators

Mounting the Apex A9000 positioner on a quarter-turn actuator (closed or open by spring)

The mounting of a pneumatic double-piston part-turn valve actuator (in accordance with VDI/VDE 3845) is described

as an example by using the following equipment:

Quarter-turn valve actuator: Rack & pinion or scotch yoke, closed or open by spring.

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Flowserve APEX A9000 Accord Manuel d'utilisateur Page 12