Emerson Keystone EPI2 63 - Installation; Checks to be Performed Before Installation; Working Condition

Installation, Operation and Maintenance Manual
MAN-10-04-100-0711-EN Rev. 0
October 2020
13
Installation
Section 4: Installation
Section 4: Installation
4.1 Checks to be Performed Before Installation
To assemble the actuator onto the valve proceed as follows:
• Check that the coupling dimensions of the valve ange 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 conguration 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 ange surfaces which transmit
the actuator torque
• Clean the valve ange and remove anything that might prevent a perfect
adherence to the actuator ange 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 ange. If they do not meet
with the holes of the spool piece ange 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
If a long storage period has occurred, before reinstalling the actuator, please:
• 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
4.2 Working Condition
Standard Keystone EPI2 actuators are suitable for the following environment temperatures:
• -25 °C to +70 °C (-13 °F to +158 °F)
Special versions are available for extreme environment temperatures:
• -40 °C to +70 °C (-40 °F to +158 °F)