Installation, Operation and Maintenance Manual
VA-DC-000-1952 Rev. 0
April 2021
6
Section 2: Installation
Installation
2.2
Valve Preparation
2.2.1
Remove Valve Gearing if equipped.
2.2.2
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.
2.2.3
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.
2.2.4
The ECAT Actuator may be mounted to the valve at any time regardless of whether the valve
is under pressure.
2.3
Actuator Preparation
2.3.1
Once the ECAT 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.
2.3.2
Check that all mounting materials such as fasteners, adapters, brackets etc. are on hand and
ready for use.
2.3.3
Check the actuator and valve to see that they are in the same relative position, that is either
open or closed. If the actuator must be moved, use the Handpump provided.
2.3.4
It is critical that the accumulator is charged with natural gas pipeline pressure prior to
operating the equipment. Refer to Section 2.8 for charging instructions.
NOTE:
Failure to charge the accumulator may cause the accumulator to not function properly.
