Table of Contents
Advertisement
Service Instructions
MAN-02-08-77-0714-EN Rev. 2
2.2
Valve Preparation
2.2.1
2.2.2
2.2.3
2.2.4
2.3
Actuator Preparation
2.3.1
NOTE:
At this point, check to see that when the actuator is mounted to the valve and in its final
orientation, the outboard end of the power cylinder positioned below the Hydraulic
Reservoir Breather. If this is not possible, contact Bettis for further instructions on piping to
elevate the breather. See Vertical Mounted Actuator 2.4.4.
2.3.2
2.3.3
Installation
Remove Valve Gearing if equipped.
If valve is equipped with stops, remove valve stem extension housing. Examine
the valve stops to ensure no foreign material is present that would restrict normal
travel of the valve. Some valves are equipped with inspection ports in the valve
housing for ease in examining the stops.
Check alignment of stem key slot to the position of the valve. Normally with the
valve in the open position, the key slot is in line with the run of the pipeline. With the
valve in the closed position, the key slot should be 90° to the run of the valve.
The SMART EHO Actuator may be mounted to the valve at any time regardless of
whether or not the valve is under pressure.
Once the SMART EHO Actuator is uncrated and cleaned for installation, check
to ensure there will be no interference with piping or other structure when the
actuator is properly mounted to the valve.
Check that all mounting materials such as fasteners, adapters, brackets etc. are on
hand and ready for use.
Check the actuator and valve to see that they are in the same relative position,
that is either open or closed. If the actuator has to be moved, use the hand pump
provided. For hand pump operation, remove the plug in the reservoir and install
the breather (refer to 4.4 Hand Pump Operation).
Section 2: Installation
September 2020
5 5
Advertisement
Table of Contents
