MOGAS C Series User manual

Installation, Operation
and Maintenance Manual
PREPARE THE VALVE FOR
INSTALLATION
ACTUATE THE VALVE
INSTALL THE VALVE
PROPERLY
MAINTAIN THE VALVE FOR
OPTIMAL OPERATION
AND PERFORMANCE
for the
MOGAS C-Series Metal-Seated Ball Valve

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
2 3
All MOGAS valves operate counter-clockwise to open, clockwise to close.
MOGAS valves are supplied in a variety of operator configurations based
upon customer requirements, and may be operated by
• manual actuation (handlever) • pneumatic actuation
• worm gear actuation (handwheel) • hydraulic actuation
Each of these operator configurations may be installed and tested prior to
shipping, or shipped separately, depending on customer requirements.
Some valves are supplied with a bare stem or stem adaptor kits to
accommodate a variety of manual or actuated operators.
Please note the configuration of each individual valve and proceed with any
necessary operator adaption procedures prior to installing the valve. CLOSE
OPEN
Sequential procedure
required to perform operation.
Bold numbers correspond
with items shown in the Valve
Item Reference Number
sections.
Warning statement
to prevent unwanted
consequence.
Note(s) to support
procedure.
All information within this manual is relevant to the safe and proper
care of your MOGAS ball valve. Please understand the following
examples of instructional information:
General information or
an alternate / variation
procedure.
VALVE ITEM REFERENCE NUMBER
MANUAL ADAPTION (HANDLEVER)....................................... 4
ACTUATOR ADAPTION ................................................ 6
TRANSPORT AND STORAGE ........................................8
PRE-INSTALLATION ...............................................9
INSTALL OPERATOR
MANUAL ADAPTION (HANDLEVER)...................................... 10
ACTUATOR ADAPTION ............................................... 14
INSTALLATION ..................................................18
OPERATION.....................................................20
MAINTENANCE....................................................... 21
REMOVE OPERATOR
MANUAL ADAPTION (HANDLEVER)...................................... 24
ACTUATOR ADAPTION ............................................... 24
ROTATE OPERATOR
ACTUATOR ADAPTION ............................................... 26
REPLACE STEM PACKING .........................................31
DISASSEMBLY...................................................36
REWORK COMPONENTS ..........................................43
RE-ASSEMBLY ..................................................45
LOCATE VALVE INFORMATION .....................................58
RETURN MERCHANDISE AUTHORIZATIONS (RMA) ....................59
SERVICE CONTACT ..............................................59
Read Before Installing Valve Contents
How to Read this Manual
Note:
The normal direction of flow is from the higher pressure end
(upstream) to lower pressure end when the valve is closed.
CAUTION!
Ensure key length provides and maintains full
engagement.
THIS WILL AFFECT THE VALVE WARRANTY.
!
PRE-INSTALLATION STORAGE
Valves shall remain stored in their shipping crates
with the lids secured.
INSTALL STEM ADAPTOR
Align stem adaptor 13 so the keyways on stem
adaptor correspond with the keys 06 on stem 05.
5

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4 5
Valve Part Reference Number
Item Description
01A Ball
01B Seat Ring
01C Spring Disc
02 Body
03 End Connection
04 Gasket
05 Stem
06 Key
07 Gland Flange
08 Stem Seal Bearing
09A Packing Ring
09B Anti-Extrusion Ring
10 Body Stud
11 Body Nut
12 Gland Stud
13 Stem Adaptor
14 Mounting Flange
15 Gland Nut
16 Flange Bushing
18 Hex Head Screw
21 Gasket (as required)
22 Stud (as required)
23 Nut (as required)
25 Hex Head Screw
27 Access Plate (as required)
35 Screw
51 Mounting Flange Adaptor
52 Pin
53 Handlever
61 Seat Locking Ring
62 Seat Locking Screws (as required)
18
15
07
14
16
06
51
13
53
25
09A
08
05
21
22
27
23
03
11
04 01B
61 62 01A
01B
01C 10
35
52
12
02
Access Plate (as required)
Manual Adaption
09B
Valve Item Reference Number
Manual Adaption (Handlever)
Valve Item Reference Number
Manual Adaption (Handlever)

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Valve Part Reference Number
Item Description
01A Ball
01B Seat Ring
01C Spring Disc
02 Body
03 End Connection
04 Gasket
05 Stem
06 Key
07 Gland Flange
08 Stem Seal Bearing
09A Packing Ring
09B Anti-Extrusion Ring
10 Body Stud
11 Body Nut
12 Gland Stud
13 Stem Adaptor (optional)
14 Mounting Flange
15 Gland Nut
16 Flange Bushing
18 Hex Head Screw
19 Key (optional)
21 Gasket (as required)
22 Stud (as required)
23 Nut (as required)
24 Nut (optional)
25 Hex Head Screw
27 Access Plate (as required)
35 Socket Head Screw
51 Mounting Flange Adaptor (optional)
52 Pin
61 Seat Locking Ring
62 Seat Locking Screws (as required)
25
15
07
14
16
06
51
13
19
08
05
21
22
27
23
03
11
04 01B
61 62 01A
01B
01C 10
35
52
02
24
18
Access Plate (as required)
Actuator Adaption
09A
12
09B
Valve Item Reference Number
Actuator Adaption
Valve Item Reference Number
Actuator Adaption

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These procedures outline the general requirements for
storage of MOGAS valves.
TRANSPORT
Valves will be shipped in seaworthy export packed
wooden crates that are plastic lined.
Upon arrival at the site, inspect the general condition
of the valve (and actuator, if supplied) for any potential
shipping damage.
PRE-INSTALLATION STORAGE
Valves shall remain stored in their shipping crates, or
on their pallents, with the lids secured.
Valves are shipped with corrosion-resistant paint
and desiccant dries (dryer bags) for storage up to six
months.
For long-term storage, the internal parts of carbon
and alloy steel valves should be sprayed with a rust
preventative.
All protective covers and plastic liners should remain
in place.
REMOVING VALVE FROM SERVICE
Before the valve is removed from the line, it should be
placed in the open position to prevent further internal
damage to valve components.
The valve should be placed in a vertical position, or
raised at an angle. The bore of the valve should be
either steamed cleaned or power washed to remove
slurry and debris.
The valve should be allowed to drain and dry. A
petroleum-based rust inhibitor should be applied
through the bore of the valve immediately after the
valve is dry.
Flange protectors need to be secured to each end of
the valve to prevent any foreign debris from entering
the valve. It is recommended to place desiccant dryer
bags inside the valve before storage.
The valve should be stored in the vertical position, out
of the weather (inside), until repairs can be made.
REMOVE VALVE
Remove the valve (and actuator, if supplied) carefully
from the shipping crate or pallet using lifting lugs
or nylon straps around the valve body and sturdy
section of the actuator. Do not lift by the actuator
alone.
INSPECT VALVE
Inspect the general condition of the valve (and
actuator, if supplied) for any potential shipping
damage.
Review the valve manual, assembly drawing with the
bill of materials, and the actuator manual (if supplied)
shipped with the valve.
REMOVE PROTECTIVE COVERS
Remove protective covers from the valve ends.
Inspect internally for shipping debris or damage.
INSTALL OPERATOR
If the valve was ordered with a handlever or actuator
from MOGAS, it should arrive pre-assembled and
tested from the factory. If already assembled, proceed
to Installation (page 18) and continue with the valve
installation.
If the valve does not have a handlever or actuator
installed, you must install the appropriate adaptor
and handlever / actuator to open and close the valve
prior to valve installation. Proceed to Install Operator
– Manual Adaption (Handlever) (page 10) or Install
Operator – Actuator Adaption (page 14).
Transport and Storage Pre-Installation
1
2
3
4

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VALVE ORIENTATION
CAUTION!
It is extremely important to follow these steps to
ensure maximum valve performance.
THIS WILL AFFECT THE VALVE WARRANTY.
!
Secure the valve in a horizontal position.
The bore should be horizontal, with the stem in a
vertical position.
The mounting flange should be level.
These procedures apply only to manual adaption
(handlever) supplied by MOGAS or a MOGAS
authorized distributor.
Note:
Valve item numbers shown in bold correspond with items shown in the
Valve Item Reference Number, Manual Adaption section (pages 4 and
5) of this document.
Verify that the keyway nearest the stamped Ton the
end of the valve stem 05 is oriented properly (‘T’ to
the top).
When the valve is closed, the keyway nearest the
stamped Tshould face the end connection 03, or
bolting side of valve.
When the valve is open, the keyway nearest the
stamped Tshould face 90° counter-clockwise from
the end connection 03, or bolting side of the valve.
STEM ORIENTATION
INSTALL FLANGE BUSHING
Insert flange bushing 16.
If necessary, tap into place using a hammer and a
brass or aluminum rod or wooden block.
INSERT KEYS
Insert keys 06 into stem keyways.
CAUTION!
Ensure key length provides and maintains full
engagement.
THIS WILL AFFECT THE VALVE WARRANTY.
INSTALL STEM ADAPTOR
Align stem adaptor 13 so the keyways on stem
adaptor correspond with the keys 06 on stem 05.
Verify that the ball 01A open / closed position
matches the handlever 53 open / closed position.
Note:
The MOGAS valve operates counter-clockwise to open, clockwise to
close.
Verify that the scribed lines on the stem 05 and stem
adaptor 13 align with the scribed lines on the gland
flange 07. These lines are approximate indications and
are not 100% accurate. For best results, make sure
the lines never under travel — a minimum travel of 96°
is required.
Slide stem adaptor 13 onto stem 05.
Note:
It may be necessary to tap stem adaptor into position with a side-to-side
motion.
CAUTION!
Do not force stem adaptor onto stem. Proper
alignment is critical to ensure the stem adaptor
slides into position.
If stem adaptor is forced onto stem, severe
damage could occur.
THIS WILL AFFECT THE VALVE WARRANTY.
!
!
16
06
13
Install Operator
Manual Adaption (Handlever)
Install Operator
Manual Adaption (Handlever)
1
3
2
4
5

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INSTALL MOUNTING FLANGE ADAPTOR
Verify that the handlever 53 recess in the stem
adaptor 13 is oriented 90° to the bore in closed
position.
Position mounting flange adaptor 51 onto mounting
flange. The open quadrant of the mounting flange
adaptor 51 must allow the handlever 53 to travel
counter-clockwise to an inline position with the bore.
Insert hex head bolts 18 from underside and tighten
temporarily to allow repositioning of the mounting
flange adaptor when setting the stop positions.
INSTALL HANDLEVER
Install handlever 53 into recess of stem adaptor 13,
aligning the mounting hole as required.
The handlever 53 should be positioned 90° to bore for
closed, and inline with bore for open.
Install hex head bolt 25 through handlever 53 into top
of stem 05. Tighten as required.
Note:
Some installations may require a washer between hex head screw and
handlever.
Note:
Holes are provided in the handlever and mounting flange to allow locking
the handlever open / closed position per customer specifications.
VERIFY OPERATION
Note:
The MOGAS valve operates counter-clockwise to open, clockwise to
close.
Using the handlever 53, the valve should be stroked
to ensure that the ball 01A is rotating properly, and
the ball position matches the open / closed position
of the handlever 53.
To adjust stop positions, loosen hex head screws 18
and carefully reposition the mounting flange adaptor
51 as required.
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 adaptor 13, 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 open / closed position is properly set, the
scribed lines on the stem adaptor, stem and gland
flange should match.
Fully tighten hex head screws 18 to secure the
mounting flange adaptor 51 in place.
CAUTION!
Misalignment can result in valve under- or over-
stroke, creating a potential leak path.
THIS WILL AFFECT THE VALVE WARRANTY.
!
SET STOP POSITIONS
Stroke the ball to ensure proper
rotation.
Fully OPEN position.
51
13
25
01A
Install Operator
Manual Adaption (Handlever)
Install Operator
Manual Adaption (Handlever)
6
7
8
9

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14 15
Verify that the keyway nearest the stamped Ton the
end of the valve stem 05 is oriented properly (‘T’ to
the top).
When the valve is closed, the keyway nearest the
stamped Tshould face the end connection 03, or
bolting side of valve.
When the valve is open, the keyway nearest the
stamped Tshould face 90° counter-clockwise from
the end connection 03, or bolting side of the valve.
STEM ORIENTATION
VALVE ORIENTATION
Secure the valve in a horizontal position.
The bore should be horizontal, with the stem in a
vertical position.
The mounting flange should be level.
Insert keys 06 into stem keyways.
INSERT KEYS
CAUTION!
Ensure key 19 length provides and maintains full
engagement.
Supplier of adaption package should provide
key 19 specifications.
THIS WILL AFFECT THE VALVE WARRANTY.
!
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.
!
Verify that the valve and actuator are in the same
operating position (open or closed).
OPERATING POSITION
Note:
Some installations may not require a stem adaptor.
Align the stem adaptor 13 so the keyway on the stem
adaptor corresponds with the keyway on the actuator.
Slide stem adaptor 13 onto stem 05.
STEM ADAPTOR
MOUNTING FLANGE ADAPTOR
Note:
Some installations may not require mounting flange adaptor.
If mounting flange adapter 51 is required, attach to
valve mounting flange using hex head screws 25 and
nuts 24.
CAUTION!
Torque the bolting per the specifications included
with the test certificate for each individual valve
serial number.
THIS WILL AFFECT THE VALVE WARRANTY.
INSTALL FLANGE BUSHING
If not already present, insert the flange bushing 16.
If necessary, tap into place using a hammer and a
brass or aluminum rod or wooden block.
06
16
13
51
Install Operator
Actuator Adaption
Install Operator
Actuator Adaption
1
2
3
5
6
7
!
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16 17
CAUTION!
Ensure key 19 length provides and maintains full
engagement.
Supplier of adaption package should provide
key 19 specifications.
THIS WILL AFFECT THE VALVE WARRANTY.
!
MOUNT ACTUATOR
Align key 19 of stem adaptor 13 with keyway of
actuator.
Carefully place the actuator on the valve mounting
flange 14 (or adaptor 51).
CAUTION!
If the actuator is supplied by MOGAS, refer to the
torque values in the test certificate provided for
each individual valve serial number.
Otherwise, refer to the manufacturer’s
specifications.
THIS WILL AFFECT THE VALVE WARRANTY.
!
CAUTION!
Do not force actuator onto stem adaptor. Proper
alignment is critical to ensure the actuator slides
gently into position.
If stem is forced into valve, severe damage could
occur.
THIS WILL AFFECT THE VALVE WARRANTY.
INSTALL BOLTS
Install the hex head screws 18, and torque as required.
INSTALL KEY
Insert key 19 into stem adaptor keyway.
Note:
Some installations may require inserting the key through an access port
in the actuator, after actuator is in position.
!
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.
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 fully open and / or fully closed position.
Stroke the ball to ensure proper
rotation.
Fully OPEN position.
Set stop positions.
51
18
01A
Install Operator
Actuator Adaption
Install Operator
Actuator Adaption
9
10
811
12

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18 19
While looking in the bore, open and close the valve.
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. (Seat leakage may occur
when the ball and seat surfaces are not matched
per the engineered design.)
Refer to Rotate Operator – Actuator Adaption (page
26) for proper procedures to rotate the actuator.
THIS WILL AFFECT THE VALVE WARRANTY.
The fully open position is the most important position
to set. It is preferred that the open position be set
while the valve is not installed in the pipeline. This
allows for the bore to be properly aligned, ensuring
that no edges are exposed to the flow.
Note:
Misalignment can result in valve under- or over-stroke, creating a
potential leak path and affecting warranty.
Note:
The MOGAS valve operates counter-clockwise to open, clockwise to
close.
VERIFY OPERATING POSITION
Verify that the ball open / closed position matches the
handlever or actuator open / closed position indicators.
Verify that the scribed lines on the stem 05 align with
the scribed lines on the gland flange 07. These lines
are approximate indications. For best results, make
sure the lines never under travel — a minimum travel
of 96° is required.
Note:
Larger valves may require the actuator to be in place to rotate the ball.
Fully OPEN position.
Fully CLOSED position.
POSITION VALVE IN PIPING
Verify that the valve and actuator / handlever
orientation is correct.
Verify that the valve is in the open position to prevent
any damage to the ball surface from debris.
Position the valve in line with mating flanges.
Note:
Support or lift as required, using lifting lugs or nylon straps around the
valve body. Do not lift or support by the actuator alone.
CAUTION!
All welding / grinding debris must be thoroughly
flushed from all associated piping before valve is
installed.
THIS WILL AFFECT THE VALVE WARRANTY.
Note:
Valve item numbers shown in bold correspond with items shown in the
Valve Item Reference Number section (pages 4 – 7) of this document.
IDENTIFY SEALING DIRECTION
Identify the preferred sealing direction of the valve,
indicated by Pressure End stamped on the valve
body 02.
Note:
The normal direction of flow is from the higher pressure end (upstream)
to lower pressure end when the valve is closed.
In certain conditions, proper operation may require the indicated flow be
opposed to the line flow. Make sure that the Pressure End is positioned
toward the highest pressure against the valve in the closed position.
SECURE VALVE IN PLACE
Install flange gaskets and bolting per customer
requirements.
Note:
MOGAS valve flanges are supplied in the customary “straddle centerline”
hole orientation, unless otherwise specified.
VERIFY OPERATION
After installation, open and close several times to
ensure smooth operation.
Straddle centerline hole orientation
These procedures are for raised-face flange
connections. When securing other end types, please
contact MOGAS Service for proper procedures.
02
Installation Installation
1
!
2
3
!
4
5

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20 21
All MOGAS ball valves are designed for on / off
services only.
To operate, turn counter-clockwise to open and
clockwise to close.
Note:
When cycling the valve open or close, make sure that the valve is fully
opened and fully closed. This wipes debris from the ball and ensures
optimal performance and long valve life.
OPEN / CLOSE
CAUTION!
Throttling with ball valves is NOT recommended.
Prolonged exposure of a portion of the ball to flow
can compromise the sealing integrity of the valve.
THIS WILL AFFECT THE VALVE WARRANTY.
Fully CLOSED position.
Fully OPEN position.
Partially OPEN position
(not recommended).
CLOSE
OPEN
CAUTION!
It is extremely important to follow these steps to
ensure maximum valve performance.
THIS WILL AFFECT THE VALVE WARRANTY.
!
VERIFY BOLTING TORQUE
After the first exposure to elevated temperature and
the valve has completely cooled-down, verify bolting
torque at these locations:
1Packing gland flange
2Body to end connection
3Access plate (if present)
4Actuator to valve mounting (if present)
Check the bolting at these same locations periodically.
CAUTION!
If bolting torque is lower than specified values on
the test certificate provided for each individual
valve serial number, re-torque bolting as necessary.
THIS WILL AFFECT THE VALVE WARRANTY.
!
OPEN / CLOSE VALVE REGULARLY
Valves remaining open or closed for a long period of
time should be cycled open / closed at least once a
year.
Valves should always be fully opened and fully
closed to wipe away any accumulation on the
sealing surfaces.
ACTUATOR LUBRICATION
Keep hydraulic, pneumatic and worm gear actuators
fully lubricated according to actuator manufacturer’s
specifications.
4
2
3
1
Operation Maintenance
!

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CAUTION!
It is extremely important to follow these steps to
ensure maximum valve performance.
MOGAS does not recommend removing the
operator while valve is subject to operating
conditions.
THIS WILL AFFECT THE VALVE WARRANTY.
!
These procedures apply only to manual adaption
(handlever) supplied by MOGAS or a MOGAS
authorized distributor.
Note:
Valve item numbers shown in bold correspond with items shown in the
Valve Item Reference Number, Manual Adaption section (pages 4 and
5) of this document.
REMOVE HANDLEVER
Remove hex head screw 25 holding handlever 53 in
place.
Note:
Some installations may require removal of washer.
Remove handlever 53.
STOP POSITIONS
In most cases, it is recommended to leave the
mounting flange adaptor 51 in place to maintain
accurate open / closed stop positions.
REMOVE STEM ADAPTOR
Remove stem adaptor 13 by lifting or prying upward
as required.
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 KEYS
Remove keys 06 from stem 05 keyways.
53
25
51
13
16
14
Remove Operator
Manual Adaption (Handlever)
Remove Operator
Manual Adaption (Handlever)
1
2
3
4

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24 25
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.
MOGAS does not recommend removing the
operator while valve is subject to operating
conditions.
THIS WILL AFFECT THE VALVE WARRANTY.
!
REMOVE BOLTING
Remove hex head screws 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.)
THIS WILL AFFECT THE VALVE WARRANTY.
!
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 mounting flange 14.
Lift the mounting flange adaptor 51 straight up and off
the mounting flange 14.
REMOVE STEM ADAPTOR
Remove stem adaptor 13 (if present) by lifting straight
up and off the stem 05, taking care to remove keys 06
as well.
18
51
51
13
51
Remove Operator
Actuator Adaption
Remove Operator
Actuator Adaption
1
2
3
4

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26 27
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

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28 29
ROTATE STEM ADAPTOR
Rotate the stem adaptor 13 to the position that
matches the corresponding slot or keyways in the
actuator.
If necessary, insert the keys 06 into keyway and slide
stem adaptor 13 onto stem 05.
MOUNTING FLANGE ADAPTOR
If mounting flange adaptor 51 is required, attach to
valve mounting flange using hex head screws 25 and
nuts 24.
CAUTION!
Torque the mounting bolts per the specifications
included with the test certificate for each
individual valve serial number.
THIS WILL AFFECT THE VALVE WARRANTY.
Verify that the keyway nearest the stamped Ton the
end of the valve stem 05 is oriented properly (‘T’ to
the top).
When the valve is closed, the keyway nearest the
stamped Tshould face the end connection 03, or
bolting side of valve.
When the valve is open, the keyway nearest the
stamped Tshould face 90° counter-clockwise from
the end connection 03, or bolting side of the valve.
STEM ORIENTATION
CAUTION!
Ensure key 19 length provides and maintains full
engagement.
Supplier of adaption package should provide
key 19 specifications.
THIS WILL AFFECT THE VALVE WARRANTY.
!
INSTALL KEY
Insert key 19 into stem adaptor 13 keyway.
Note:
Some installations may require inserting the key through an access port
in the actuator after actuator is in position.
MOUNT ACTUATOR
Align key 19 of stem adaptor 13 with keyway of
actuator.
Carefully place the actuator on the valve mounting
flange 14 (or mounting flange adaptor 51).
CAUTION!
If the actuator is supplied by MOGAS, refer to the
torque values in the test certificate provided for
each individual valve serial number.
Otherwise, refer to the manufacturer’s
specifications.
THIS WILL AFFECT THE VALVE WARRANTY.
!
CAUTION!
Do not force actuator onto stem adaptor. Proper
alignment is critical to ensure the actuator slides
gently into position.
If stem is forced into valve, severe damage could
occur.
THIS WILL AFFECT THE VALVE WARRANTY.
INSTALL BOLTS
Install the actuator bolts 18, and torque as required.
!
13
51
51
18
Rotate Operator
Actuator Adaption
Rotate Operator
Actuator Adaption
!
5
6
7

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30 31
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

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
32 33
REMOVE STEM PACKING
Using a small pick or scribe, carefully remove the
packing material 09A and 09B.
Make sure that all of the packing is removed.
CAUTION!
Do not scratch the stem or the packing bore in the
body. Scratches could cause a leak.
THIS WILL AFFECT THE VALVE WARRANTY.
CLEAN PACKING BOX
Before installing the new packing, make sure the
packing box is clean.
If needed, use an air hose to clean debris from
packing box before installing new packing rings.
Note:
Always wear a face shield or goggles to protect eyes from flying debris.
PACKING RING SET
The new packing ring set will contain four to five rings
total (two rope-like anti-extrusion rings 09B and two
to three die-form stem packing rings 09A).
Note:
Refer to Bill of Materials supplied with each individual valve serial
number for specific quantity.
!
INSTALL PACKING RINGS
Note:
Applying a spray lubricant to packing ring surfaces may ease the
installation process.
Install the rings one at a time (one anti-extrusion ring
09B first, then each stem packing ring 09A and then
the second anti-extrusion ring 09B) using the gland
flange 07 as a packing tool to stuff each packing ring
all the way down against the previous ring.
Make sure scribe line of stem is lined up with scribe
line of packing gland.
CHECK POCKET DEPTH
Before installing the second anti-extrusion ring 09B
ensure there is enough depth for the anti-extrusion
ring to fit flush in the pocket.
09B
09A
09B
09A
07
Replace Stem PackingReplace Stem Packing
5
6
7
8

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34 35
FINAL PACKING RING
If there is enough depth for the second anti-extrusion
ring 09B to fit flush in the pocket, install the anti-
extrusion ring 09B.
If there is not enough depth for the second anti-
extrusion ring 09B to fit flush in the pocket, do not
install the anti-extrusion ring 09B.
Use the gland flange 07 to compress the packing
rings enough to fit the second anti-extrusion ring 09B
flush into the pocket. Make sure scribe line of stem is
lined up with scribe line of packing gland.
To do this, install the gland flange 07.
Apply anti-seize compound onto gland studs 12 and
gland nuts 15.
Install the gland nuts 15, tightening all nuts evenly
until there is enough depth for the second anti-
extrusion ring to fit flush into the pocket.
Once this is accomplished, remove the gland nuts 15
and the gland flange 07.
Install the second anti-extrusion ring 09B.
INSTALL GLAND FLANGE
Make sure gland studs 12 are in place. If necessary,
install gland studs 12, using anti-seize compound.
Install gland flange 07 over stem 05 and gland studs
12.
Apply anti-seize compound onto gland studs 12 and
gland nuts 15.
Install gland nuts 15, and torque all nuts evenly per
the specifications included with the test certificate
for each individual valve serial number.
CAUTION!
The gland flange must be pulled down evenly to
prevent “cocking” or side loading, as this could
cause damage to the packing and prevent the
valve from operating properly.
Watch the gland flange to ensure that it remains
perpendicular to the stem, and the gap around
the stem remains concentric during the tightening
process.
Do not over-tighten nuts. Torque all nuts evenly
per the specifications included with the test
certificate for each individual valve serial number.
THIS WILL AFFECT THE VALVE WARRANTY.
INSTALL FLANGE BUSHING
Insert the flange bushing 16.
If necessary, tap into place using a hammer and a
brass or aluminum rod or wooden block.
INSTALL OPERATOR
Refer to Install Operator – Manual Adaption
(Handlever) (page 10) or Install Operator – Actuator
Adaption (page 14) as required.
07
15
09B
07
12
15
16
Replace Stem PackingReplace Stem Packing
9 10
!
11
12

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36 37
Disassembly
REMOVE VALVE
Remove valve from piping.
Note:
Support or lift as required.
Let valve rest on body end with bore vertical.
!
Note:
Larger valves may require that the actuator remain installed in order to
rotate the ball position prior to the removal of valve from piping.
Larger valve / actuator combinations with limited clearance may
require removal of the valve and the actuator from piping as separate
components.
Smaller valve / actuator combinations with adequate clearance may
typically be removed from piping as one assembly.
CAUTION!
Verify that the ball is in the fully closed position
prior to actuator removal and valve disassembly.
REMOVE OPERATOR
Refer to Remove Operator (pages 22–25) to remove
manual adaption or actuator adaption as required.
REMOVE MOUNTING FLANGE ADAPTOR
If mounting flange adaptor 51 is present, it must be
removed.
Note:
Mark any matching components with a marker, tape, etc., prior to
disassembly, for ease of reassembly.
Remove nuts 24 and hexhead screws 25 holding the
mounting flange adaptor 51 to the valve mounting
flange.
Lift the mounting flange adaptor straight up and off
the valve mounting flange.
REMOVE END CONNECTION
Remove end connection 03.
Disassembly
CAUTION!
Do not damage sealing surface inside body gasket
counter bore.
!
REMOVE BODY NUTS
Remove body nuts 11.
Place end connection on a flat surface in the vertical
position with flanged-end down.
3
1
2
5
4
Note:
Mark any matching components with a marker, tape, etc., prior to
disassembly, for ease of reassembly.
Before beginning any work, identify the valve model
by checking the number on the side of the valve body.
To locate the model number, see page 58, Locate
Valve Information.
Mark any matching components with a marker, tape,
etc., prior to disassembly, for ease of reassembly.
If you do not have a CA model valve, go to Step 8.
!CAUTION!
If you disassemble, rework and re-assemble this
ball valve, YOU WILL VOID YOUR WARRANTY.
51
11
03

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38 39
Disassembly
VERIFY CLOSED POSITION
Verify that the ball 01A has been rotated to the fully
closed position.
REMOVE BODY GASKET
Remove body gasket 04 from body 02.
CAUTION!
Do not damage seat pocket.
REMOVE SEAT RING
Remove seat ring 01B from end connection 03.
!
REMOVE BODY STUDS
Remove body studs 10 from body 02.
REMOVE BALL
Remove ball by lifting the end opposite stem 05 and
“rolling it out” until ball 01A is clear of body 02.
CAUTION!
For larger valves, use nylon straps to prevent
damage to ball coating.
!
Disassembly
11
10
8
9
12
REMOVE SEAT LOCKING RING
Remove seat locking ring 61 from end connection 03.
7
REMOVE SEAT LOCKING SCREWS
Remove seat locking screws 62 (if provided).
Note:
Seat locking screws have been tack-welded at factory. Remove tack-
weld prior to removal of screws.
Note:
Mark any matching components with a marker, tape, etc., prior to
disassembly, for ease of reassembly.
6
The following steps 6 and 7 apply only to CA model
valves. To locate the model number, see page 58,
Locate Valve Information.
62
61
1B
10
04
01A
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