Section 4: Installation; Checks To Be Performed Before Installation; Working Condition - Emerson Keystone EPI2 63 Installation, Operation And Maintenance Manual

Installation, Operation and Maintenance Manual
MAN-10-04-100-0711-EN Rev. 0

Section 4: Installation

4.1

Checks to be Performed Before Installation

To assemble the actuator onto the valve proceed as follows:
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If a long storage period has occurred, before reinstalling the actuator, please:
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4.2

Working Condition

Standard Keystone EPI2 actuators are suitable for the following environment temperatures:
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Special versions are available for extreme environment temperatures:
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Installation
Check that the coupling dimensions of the valve flange and stem, or of the
relevant extension, meet the actuator coupling dimensions
The electrical supply cables must be suitable for the power rating
Gather the necessary tools for the assembly and configuration of the actuator controls
Lubricate the valve stem with oil or grease to make the assembly easier: pay
attention not to contaminate with lubricant the flange surfaces which transmit
the actuator torque
Clean the valve flange and remove anything that might prevent a perfect
adherence to the actuator flange and especially all traces of grease
Install the actuator onto the valve so that the shaft output drive enters the
groove of the stem extension. This coupling must take place without forcing and
only with the weight of the actuator. When the actuator output shaft and the
valve stem are connected, check the holes of the valve flange. If they do not meet
with the holes of the spool piece flange or the stud bolts screwed into them, the
actuator shaft output drive must be rotated. Actuate the manual override until
coupling is made possible. Tighten the nuts of the connecting stud bolts evenly
If possible, operate the actuator to verify it moves the valve smoothly
Check the status of the O-ring seals
Check the installation of the plugs or cable glands on the cable entries
Check whether the enclosure covers or the actuator body are cracked or broken
-25 °C to +70 °C (-13 °F to +158 °F)
-40 °C to +70 °C (-40 °F to +158 °F)
Section 4: Installation
October 2020
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