MOGAS C Series, Installation, Operation And Maintenance Manual, Page: 16 / 31

ESI-6121 Rev D © Copyright 03/2022 MOGAS Industries, Inc. www.mogas.com ESI-6121 Rev D © Copyright 03/2022 MOGAS Industries, Inc. www.mogas.com
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The fully open position is the most important position
to set. It is preferred that the open position be set
before the valve is installed in the pipeline.
The fully open position should properly align the bore,
ensuring that no edges of the ball
01A
are exposed to
the flow.
For visual verification of open / closed , locate the
scribed lines on the stem
05
and gland flange
07
.
These lines are approximate locations and should not
be used for setting the
open stop. For best results,
ensure the lines never under travel — a minimum
travel of 96° is required.
When the actuator is properly set, the scribed lines on
the stem and gland flange should match.
CAUTION!
Misalignment can result in valve under- or over-
stroke, creating a potential leak path.
THIS WILL AFFECT THE VALVE WARRANTY.
!
SET STOP POSITIONS
Note:
The actuator stops may be reset per the manufacturer’s specifications to
achieve a
fully open and / or fully closed position.
Fully OPEN position.
Set stop positions.
VERIFY OPERATION
Note:
The MOGAS valve operates counter-clockwise to open, clockwise to
close .
The actuator should be stroked to ensure that the ball
01A
is rotating properly, and the ball position matches
the open / closed indicators on the actuator.
If the ball requires alignment, the actuator stops
should be reset at this time, per the manufacturer’s
specifications.
Stroke the ball to ensure proper
rotation.
REMOVE OPERATOR
Refer to Remove Operator – Manual Adaption
(Handlever) (page 22) or Remove Operator –
Actuator Adaption (page 24) as required.
CAUTION!
It is
extremely important
to follow these steps to
ensure maximum valve performance.
THIS WILL AFFECT THE VALVE WARRANTY.
!
Note:
Mark any matching components with a marker, tape, etc., prior to
disassembly, for ease of reassembly.
REMOVE FLANGE BUSHING
Remove the flange bushing
16
by driving it upwards
and off the mounting flange
14
, using a hammer and
brass or aluminum rod if necessary.
REMOVE GLAND NUTS
Remove the packing gland nuts
15
.
REMOVE GLAND FLANGE
Lift upward to remove the packing gland flange
07
.
01A
16
15
07
Rotate Operator
Actuator Adaption
Replace Stem Packing
9
8
1
2
3
4