Installing The Eho Actuator On The Valve - Emerson Bettis EHO Installation, Operation And Maintenance Manual

Section 2: Installation
December 2022
2.5

Installing the EHO Actuator on the Valve

The actuator will be bolt-mounted directly to a bracket or adaptor that will be bolted
securely to the mounting flange top works of the valve.
2.5.1
2.5.2
2.5.3
2.5.4
2.5.5
NOTE:
Do not apply grease to the mounting flange surfaces on the valve or the adaptor.
2.5.6
2.5.7
2.5.8
2.5.9
NOTE:
Ensure the adaptor seats out on the valve bonnet, without interference, before
installing fasteners.
2.5.10 Use the required fasteners to firmly attach the adaptor to the valve bonnet.
10
Check to see that the dimensions of the bracket or adaptor are suitable for use
with the valve mounting flange and stem.
Check valve direction of rotation and the actuator direction of rotation to see if
they match (for example: CW = close, CCW = open).
Check to see the actuator and valve are in the same relative position (see step 2.3.3).
Check all mounting surfaces, they must be clean and free of debris to permit
proper fit up.
Prior to mounting, grease the coupling bore and the bore of the actuator.
Install the stem key and grease it (keys may be held in place with tape).
Install the coupling onto the stem and stem key.
Install the coupling key and grease it.
Carefully align the coupling and key, to the bore and keyway in the actuator, and
slide the actuator onto the coupling until the adaptor (bracket) bottoms out on
the valve bonnet.
Tighten the fasteners to their manufacturer's recommended maximum torque
(dry or lubricated).
Installation, Operation and Maintenance Manual
VA001-507-32 Rev. 1
Installation