
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
26
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These procedures apply to hydraulic, pneumatic
and worm gear actuation supplied by MOGAS or a
MOGAS authorized distributor. Otherwise, refer to the
actuator manufacturer’s manual for specific operator /
actuator removal procedures.
Note:
Valve item numbers shown in
bold
correspond with items shown in the
Valve Item Reference Number, Actuator Adaption
section (pages 6
and 7) of this document.
CAUTION!
It is
extremely important
to follow these steps to
ensure maximum valve performance.
THIS WILL AFFECT THE VALVE WARRANTY.
!
REMOVE BOLTING
Remove bolts
18
holding actuator to mounting flange
(or mounting flange adapter
51
, if provided).
LIFT ACTUATOR
Lift the actuator straight up and off the mounting
flange
14
(or mounting flange adaptor
51
).
CAUTION!
The actuator must not be re-oriented without
removal from the valve. This prevents 180° rotation
of the ball and assures the mate-lapped ball and
seat surfaces match. (See page 53, step 16 for
matching clarification.) Seat leakage may occur
when the ball and seat surfaces are not matched
per the engineered design).
THIS WILL AFFECT THE VALVE WARRANTY.
!
ROTATE ACTUATOR
After the actuator is removed, rotate the actuator to
the desired position.
Note:
As a standard practice, MOGAS adaption is designed to be rotated in 90°
increments.
REMOVE STEM ADAPTOR
Remove stem adaptor
13
(if present) by lifting straight
up and off the stem
05
, taking care to remove keys
06
if necessary.
STEM ADAPTOR POSITION
Verify the position of the stem adaptor
13
, if present.
If the slot or keyway does not match the slot or
keyway in the actuator, the stem adaptor
13
must be
rotated as well.
REMOVE MOUNTING FLANGE ADAPTOR
If mounting flange adaptor
51
is present, it must be
removed.
Remove nuts
24
and hex head screws
25
holding the
mounting flange adaptor
51
to the valve mounting
flange
14
.
Lift the mounting flange adaptor
51
straight up and off
the valve mounting flange
14
.
Note:
Rotating the stem adaptor may require removal of the mounting flange
adaptor, if present.
18
51
51
13
51
13
Rotate Operator
Actuator Adaption
Rotate Operator
Actuator Adaption
1
2
3
4