Dyna-Flo 360 Parts list manual

Model 360/361 Control Valves
Dyna-Flo Control Valve Services Ltd.
Phone: 780 •469 •4000 Toll Free: 1 •866 •396 •2356 Fax: 780 •469 •4035 Website: www.dynaflo.com
P-360M1019A 1
Operation, Parts, and Instruction Manual
TABLE OF CONTENTS
General 2 Lapping 13
Scope 2 Assembly 15
Specifications 3 Stud Installation 15
Unpacking 5 Plug Seal Assembly 15
Installation 5 Trim Parts Assembly 19
Air Piping 6Bonnet Installation 20
Periodic Inspection 7 Packing Installation 21
Actuator Removal 7 Globe Valve Cross Section - Figure 32 26
Maintenance 8 Angle Valve Cross Section - Figure 34 28
Packing Maintenance 8 Body to Bonnet Stud Torque - Table 5 32
Disassembly 9 Packing Nut Torque - Table 6 32
Packing Removal 9 Valve Stem Connection Information - Table 7 32
Bonnet Removal 9 Parts 33
Trim Parts Removal 11 Model Builder 49
Packing Parts Removal 11
Plug Seal Removal 12
Figure 1 360 Control
Valve & DFC Actuator

Dyna-Flo Control Valve Services Ltd.
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Model 360/361 Control Valves
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Operation, Parts, and Instruction Manual
NOTICE These instructions are meant to be used with the Dyna-Flo 360/361 Technical Bulletin as they refer to
Figures and Tables therein. If you do not have the Technical Bulletin, contact Dyna-Flo immediately, or
visit www.dynaflo.com
Each control valve is factory checked. Check the calibration for the specific application, before a valve
is put into service.
It is the intention of this document to provide users with an accurate guide for safe installation and
maintenance of the 360/361 Control Valves. Revisions are available at above mentioned website.
GENERAL
The following instructions are to be thoroughly reviewed and understood prior to installing, operating or performing
maintenance on this equipment. Work on this equipment should be performed by experienced personnel. Throughout
the manual, safety and caution notes appear and must be strictly followed, to prevent serious injury or equipment
malfunction.
SCOPE
The control valve configuration and construction materials were selected to meet particular pressure, temperature, and process
conditions. Some material combinations are limited in their pressure and temperature ranges. Do not apply any other conditions to
the valve without first contacting your Dyna-Flo sales office.
This manual is written to be a practical and useful guide to maintaining the Dyna-Flo 360 Control Valve.
SAFETY CAUTION
Only well trained experienced technicians should perform these procedures. Use safe work practices and lock out
procedures when isolating valves and actuators. It is also important to wear the proper protective equipment when
performing any installation or maintenance activity. Use only parts and materials rated for the process being used,
operating conditions, and environmental conditions products will be used in.
To avoid personal injury or installation damage as a result of the sudden release of process pressure or damage to
equipment, do not install the valve assembly where service conditions could exceed the limits stated in this manual,
sales bulletin or on the equipment nameplates. Use government codes, accepted industry standards and good piping
practices, and select proper pressure-relieving equipment for protection of your installation. Always be aware of
flammable process and instrument gas.
Always be aware of the hazards of actuators, especially spring-loaded actuators. Be sure that the actuator is
de-energized or in the failed position before performing any maintenance procedure.
These valves have dangerous pinch points. Never put your hands inside the valve unless you are certain that the plug
and stem will not move.

Model 360/361 Control Valves
Dyna-Flo Control Valve Services Ltd.
Phone: 780 •469 •4000 Toll Free: 1 •866 •396 •2356 Fax: 780 •469 •4035 Website: www.dynaflo.com
P-360M1019A 3
Operation, Parts, and Instruction Manual
SPECIFICATIONS
Configurations
The Model 360 control valve is a high capacity single port,
globe style valve with a bolted type bonnet. The standard
valve plug action is push down to close. Refer to Table 1.
PTFE Seat and Metal Seat Available.
Consult your Dyna-Flo sales office for other available
configurations.
Sizes and Connection Styles (Refer to Table 1)
Model: 360
Size: 1”, 1-1/2”, 2”, 3”, 4”, 6”, 8”
Body: Globe (All Sizes), Angle (1” / 2” / 3” / 4” / 6”)
Rating: ASME 150 / 300 / 600
Connection: RF / RTJ / BWE - All Sizes
SWE / NPT - 1”, 1-1/2”, and 2”
Maximum Inlet Pressures and Temperatures
Flanged valves consistent with ASME Class 150, 300, and
600 rating as per ASME B16.34, unless limited.
Maximum Pressure Drops
Maximum pressure drop is the same as maximum inlet
pressure unless restricted by the following:
Standard Valve Trim: Figures 10A - 10D.
Anti-Cavitation Trim: Figures 10A - 10D.
Low-Noise Valve Trim: Figures 10A - 10D.
Characteristic and Flow Direction
•Equal Percentage (Standard) - Flow Down
•Quick Opening - Flow Down
•Linear - Flow Down
•Low-Noise 3 (Linear) - Flow Up
•Anti-Cavitation 1-Stage (Linear) - Flow Down
•Anti-Cavitation 2-Stage (Linear) - Flow Down
Dimensions
Valve and Actuator Outline Dimension Diagram
Refer to Figure 2 of the Sales Bulletin.
Valve and Actuator Assembly Dimensions
Refer to Tables 8 to 19 of the Sales Bulletin.
Approximate Valve Body and Actuator Weights
Refer to Table 4.
Materials
Body and bonnet material options include:
LCC (A350-LF2 optional* bonnet material)
WCC (A350-LF2 optional* bonnet material)
WC9 (A182-F22 optional* bonnet material)
CF8M (A182-F316 optional* bonnet material)
*NOTE: Dyna-Flo reserves the right to substitute a cast
material with the forged bar equivalent in the event a casting
is not available.
Refer to Figures 10A - 10D of the Sales Bulletin for valve
construction material temperature limitations. Refer to Tables
23 - 25 of the Sales Bulletin for trim selections.
Cross-Section of the Model 360 Control Valves
Refer to Figures 32 to 40.
Port Diameters and Maximum Valve Plug Travel
Refer to Tables 4 to 6 of the Sales Bulletin.
Packing Type and Examples
The Standard packing is PTFE V-ring. Live-loaded low
emission, graphite, KALREZ®and other packing
arrangements are available. Refer to Figures 27, 29, 30, &
31.
Maximum Valve Sizing Coefficients
For standard coefficients at maximum travel, refer to Table 29
& 30 of the Sales Bulletin. For full list of coefficients refer to
document P-CVSM.
Service Application
Refer to Tables 20 - 28 of the Sales Bulletin.
For more information and other options contact your Dyna-Flo
sales office.

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Model 360/361 Control Valves
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Operation, Parts, and Instruction Manual
Table 2
Standard Shut-Off Classifications (in accordance with ANSI/FCI 70.2 and IEC 60534-4)
Valve Trim Seat Option Shut-Off Class
All
(Except Anti-Cavitation)
PTFE (Soft Seated)
Standard Class V (Air Test)
Optional Class V
Class VI(1)
Metal
Standard Class IV
Optional Class V(2)
Class VI(1)
Anti-Cavitation 1 Stage Metal Standard Class IV
Optional Class V
Anti-Cavitation 2 Stage Metal Standard Class V
Notes: 1- Refer to Table 3.
2- Class V shut-off requires a spring-loaded seal ring, radius-seat plug, and wide-bevel
seat ring. Not available with 8 inch port quick opening cages.
Table 1
Available Valve Configurations
Valve Model Valve Size
Inch
End Connection
NPT(1) RF(2) and RTJ(3) (Flanged) BWE(4) SWE(5)
ASME Class 150 ASME Class 300 ASME Class 600
360
1 / 1-1/2 / 2 
3 / 4 / 6 / 8 
360A
1 & 2 
3 / 4 / 6 
Notes:
1- NPT = Screwed.
2- RF = Raised Face.
3 - RTJ = Ring Type Joint.
4 - BWE = Butt Weld (ASME Class 600 Only).
5 - SWE = Socket Weld (ASME Class 600 Only).
Table 3
Available Valve Configurations for Class VI Shut-Off (in accordance with ANSI/FCI 70.2 and IEC 60534-4)
Valve Model Port Size
Inch Valve Seat Minimum Seat Load
360
Refer to Table 23 for Trim
≥3.4375≤7 Metal(1) 300 lbs./lineal inch
≥3.4375≤7 PTFE Consult Dyna-Flo
Note: 1 - Class VI shut-off requires a spring-loaded seal ring, radius-seat plug, and wide-bevel seat ring.

Model 360/361 Control Valves
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Operation, Parts, and Instruction Manual
UNPACKING VALVE FROM SHIPPING
CONTAINER
Special Tools Required:
• Properly Rated Lifting Straps (2 – 4 Straps) refer to Table 4
for actuator weights.
• Lifting Device (Example: Crane)
Check the packing list, verify that the list includes all the
materials in the shipping container before unpacking. Valve
information can be found on the nameplate (Key 47). Refer to
Figure 2 for nameplate location.
When lifting the valve from shipping container, place properly
rated lifting straps securely around the neck of the actuator,
refer to Figure 2 for strap placement. Straps should be placed
to avoid damage to tubing and other mounted accessories.
For valve assemblies without an attached actuator, use caution
when lifting or positioning straps so as not to damage the valve
stem.
Lift the valve/actuator assembly using proper lifting techniques.
INSTALLATION
Before You Begin:
• Read the General and Scope section of this manual (Page 2).
• Read Safety Caution (Page 2).
• Sudden movement of actuator can cause damage or injury.
It helps to have the actuator de-energized.
• Use safe work practices and lock out procedures before
placing valve in-line.
NOTE: For butt weld valve bodies, depending on the body
material, post-weld heat treatment might be required. Soft
parts, seals, some metal trim, threading and shrink-fit parts
can be damaged by post-weld heat treatment. If post-weld heat
treatment is required, it is recommended that all internal valve
parts be removed from the valve body. Contact Dyna-Flo for
more information.
Parts Required:
• Appropriate Line Flange Nuts and Bolts
• Appropriate Line Flange Gaskets
• If the valve has small internal flow passages such as
Anti-Cavitation or Low-Noise trim, the installation of an
upstream strainer should be considered to prevent clogging
of these small passages.
Figure 2 Actuator Lifting Suggestions
Installation Steps:
1Check the packing box bolting (Key 38) for proper
tightness. Refer to Packing Installation on Page 20 for
proper packing tightening instructions.
2The valve assembly may be installed in any position
unless limited by vibration considerations, it is however
recommended that the valve be installed with the valve
stem (Key 5) perpendicular to the ground. NOTE: For
some non-vertical orientations, the valve actuator may
need to be supported.
3 Install the valve with flow through the valve in the
direction shown by the flow arrow on the valve body.
4Install the appropriate line flange gaskets.
5Apply Permatex®Nickel Anti-Seize to the threads of the
flange studs and install.
6When possible, before tightening the line bolting, stroke
the valve and check for smooth operation through the full
stroke. Unsteady valve stem movement could be an
indication of an internal problem.
7Tighten the line flange bolting in even increments in a
crisscross pattern until the correct line bolt torque
specification is reached.
LIFTING STRAP
47

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INSTALLATION (Continued)
AIR PIPING
WARNING:
Property damage, environmental harm, and personal injury can result from the use of supply gas other than clean,
non-corrosive, oil and moisture free air. Do not exceed the supply pressure indicated on the serial plate located on the actuator.
Before You Begin:
Note: Standard actuators accept ¼” (6 mm) NPT connections.
• Refer to the appropriate actuator instruction manual when necessary.
Piping Installation Steps:
1Use 3/8” (outside diameter) tubing (or equivalent) for air lines.
2Install the required line vents, valves, drains, seals, and filters to the actuator.
Table 4
Valve Body / Actuator Configurations and Approximate Weights
Valve Size
(inch)
Body Only
lb (Kg)
With Fail Open
Actuator Size
Valve and Actuator
Assembly Weight
lb (Kg)
With Fail Close
Actuator Size
Valve and Actuator
Assembly Weight
lb (Kg)
1 30 (14)
DFO - 1046 66 (30) DFC - 1046 64 (29)
DFO - 1069 70 (32) DFC - 1069 78 (26)
1-1/2 45 (20)
DFO - 1046 81 (37) DFC - 1046 79 (36)
DFO - 1069 85 (39) DFC - 1069 93 (42)
2 85 (39)
DFO - 2069 136 (62) DFC - 2069 135 (61)
DFO - 2105 167 (76) DFC - 2105 175 (79)
3 125 (57)
DFO - 2069 176 (80) DFC - 2069 175 (79)
DFO - 2105 207 (94) DFC - 2105 215 (98)
4 170 (77)
DFO - 2105 252 (114) DFC - 2105 260 (118)
DFO - 2156 277 (126) DFC - 2156 291 (132)
6 350 (159)
DFO - 3156 466 (211) DFC - 3156 471 (214)
DFO - 3220 585 (266) DFC - 3220 604 (274)
8900 (408) DFO - 3220 1135 (515) DFC - 3220 1154 (523)

Model 360/361 Control Valves
Dyna-Flo Control Valve Services Ltd.
Phone: 780 •469 •4000 Toll Free: 1 •866 •396 •2356 Fax: 780 •469 •4035 Website: www.dynaflo.com
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Operation, Parts, and Instruction Manual
PERIODIC INSPECTION
Special Equipment Required:
• Bypass or block valves.
Before You Begin:
• Read Safety Caution (Page 2).
• Use safe work practices and lock out procedures.
• Disconnect supply lines (air or gas), electric power, or control
signal to the actuator. Sudden movement of actuator can
cause damage or injury, make sure actuator will not operate.
• Vent any pneumatic actuator loading pressure and relieve
any actuator spring preload if present.
• Relieve process pressure and drain the process fluid from up
and down stream of valve.
• Be aware of potentially hazardous process material that may
be present in-line and in-valve. Isolate the valve from
process pressure. Use a bypass or block valve if necessary,
or completely shut off the process.
Inspection Steps:
1Check for visible signs of leakage around all seal and
gasket areas.
2Check the valve for damage, especially damage caused by
corrosive fumes or process drippings.
3Clean and repaint the areas as required.
4Ensure all accessories, mounting brackets, and fasteners
are secure.
5Clean any dirt and foreign material from the valve stem
(Key 5).
ACTUATOR REMOVAL
Note: Actuator removal does not require that the valve be
removed from the pipeline.
Tools Needed:
• Properly Rated Lifting Straps or Chains
• Lifting Device (Example: Crane)
• Hammer and Blunted Chisel
Before You Begin:
• Read Safety Caution (Page 2).
• Use safe work practices and lock out procedures.
• Disconnect supply lines (air or gas), electric power, or control
signal to the actuator. Sudden movement of actuator can
cause damage or injury, make sure actuator will not operate.
• Vent any pneumatic actuator loading pressure and relieve
any actuator spring preload if present.
1Refer to the appropriate actuator instruction manual for
more information regarding the actuator being removed.
2If the valve has been removed from the pipeline, place
the valve assembly on a flat work surface that can support
the weight.
3Before the actuator is removed, support the actuator using
lifting hooks or straps rated to support the weight of the
actuator.
4If the actuator is a spring and diaphragm actuator,
determine if that actuator is fail open or fail closed. Fail
closed actuators will need to be energized to remove
downward force from the stem connector. Connect a supply
line to the inlet port of the actuator, be sure not to exceed
the maximum casing pressure. Refer to Figure 3 for
recommended needle valve and gauge setup.
5Remove the stem connector (Refer to Figure 5).
6Use a blunted heavy chisel to loosen the yoke nut (Key
44). Unscrew the yoke nut and remove the actuator from
the valve. If the actuator was energize during removal,
de-energize the actuator (Refer to Figure 4).
7Remove the jam nut and hex nut (Keys 42 & 43) and travel
indicator from the valve stem (Key 5).
Figure 3 Needle Valve with Gauge setup

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Operation, Parts, and Instruction Manual
MAINTENANCE
Note: Seals, soft parts, and packing (including live loaded
packing) should all be inspected frequently for leaks, wear and
damage. Maintenance to the valve can be performed while the
valve is still in-line, the actuator must be removed to replace
packing (Refer to Page 6 for Actuator Removal instructions).
Before you begin:
• Read Safety Caution (Page 2).
• Determine if valve has standard or live loaded packing (Refer
to Figures 27, 29, 30 & 31).
• Follow Steps 1 – 6 of Before You Begin from PERIODIC
INSPECTION (Page 7).
Packing Maintenance
If the packing is leaking, proper tightening of the packing may
correct the leak. If re-tightening the packing to the proper
specifications does not stop the leakage it is possible that the
stem or wall of the packing box is damaged. Replace or repair
parts as necessary. For instructions on packing removal only,
refer to the Disassembly, Packing Removal section on Page 9.
1Determine the type of packing installed in the valve. Refer
to Figures 27, 29, 30, and 31 for packing styles.
Figure 4 Yoke Nut being loosened with a Chisel
For Single PTFE V-Ring Packing (Spring-Loaded):
Tighten the packing nuts (Key 38) evenly in an alternating
pattern until the shoulder of the packing follower (Key 35)
makes contact with the top face of the bonnet (Key 26).
Proceed to tighten the packing nuts to the torque specification
listed in Table 6. Refer to Figure 27.
For Double PTFE V-Ring and Graphite Packing:
Tighten the packing nuts (Key 38) evenly in an alternating
pattern to the minimum recommended torque specifications
listed in Table 6 on Page 30, continue tightening until
leakage stops or the maximum torque specification is reached.
If leakage continues after reaching the maximum
recommended torque the packing will need to be replaced,
do not tighten the packing past the maximum recommended
torque as this will cause excessive packing friction.
For Live-Loaded Packing:
Refer to the Sliding Stem Live-Loaded Packing Manual (P-LLPS)
for proper maintenance procedures.
Figure 5 Packing Nut and Stem Connector Detail
44
45
38
STEM
CONNECTOR
42
43

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Operation, Parts, and Instruction Manual
DISASSEMBLY
Before You Begin:
• Read Safety Caution (Page 2).
• Use safe work practices and lock out procedures.
• Remove the actuator from the valve (Refer to Actuator
Removal Instructions, Page 7).
• Relieve process pressure and drain the process fluid from up
and down stream of valve.
• Be aware of potentially hazardous process material that may
be present in-line and in-valve. Isolate the valve from
process pressure. Use a bypass or block valve if necessary, or
completely shut off the process.
• For Angle Body Valves refer to Figure 34.
PACKING REMOVAL
For Live Loaded Packing refer to Figure 31 and the Live Loaded
Sliding Stem Packing Manual (P-LLPS).
Special Tools Required:
• Mechanics Pick Set
NOTE: Packing box parts are easier to remove after the bonnet
(Key 26) has been separated from the valve body (Key 1) and
the valve stem (Key 5) has been removed. If the packing is all
that needs to be removed, it is possible to extract packing box
parts carefully using a mechanics pick set.
WARNING: Process medium and pressure may become stored
in the packing, use caution when removing packing parts.
1Remove the packing nuts (Key 38).
2Remove the upper wiper (Key 36) if present, graphite
packing does not include an upper wiper.
3Remove the packing follower (Key 35).
4It is recommended to proceed to the Bonnet Removal
section to continue with valve disassembly. If the packing
is all that needs to be removed, remove the contents of the
packing box (Keys 30, 31, 32, 33, & 34) using a mechanics
pick set being careful not to damage the valve stem (Key
5) or wall of the packing box of the bonnet (Key 26). For
packing reassembly refer to Packing Installation section
(Page 21).
Figure 6 Packing Removal (Steps 1 - 3)
BONNET REMOVAL
WARNING: Process medium and pressure may be trapped
inside the valve body (Key 1). Use caution when removing the
valve bonnet (Key 26). Refer to Safety Caution on Page 2.
1Loosen the bonnet nuts (Key 28) 1 full turn after the
contact between the nuts and the top surface of the bonnet
(Key 26) has been broken. Do not remove the bonnet nuts
until any trapped process pressure has been vented. Refer
to Figure 7.
2Break the contact between the valve body (Key 1) and the
bonnet (Key 26), use a pry bar or blunt chisel to help with
the separation if necessary.
38
35
37
36
29
26
5

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DISASSEMBLY (Continued)
BONNET REMOVAL (Continued)
3If no process fluid or gas escapes from the body-to-bonnet
joint proceed by completely removing the bonnet nuts (Key
28). Refer to Figure 8.
4Carefully lift the bonnet (Key 26) from the valve body (Key
1), be sure that the valve stem (Key 5) and plug (Key 3)
assembly do not drop from the bonnet and get damaged.
Also, if the valve plug and stem assembly begin to lift when
lifting the bonnet, it may be necessary to gently tap the
stem from the bonnet using a rubber mallet as the bonnet
is being lifted.
5The bonnet gasket (Key 22) may stick to the bonnet during
removal. Remove the bonnet gasket.
Figure 7 Bonnet Removal (Steps 1 - 2)
Figure 8 Bonnet Removal (Steps 3 - 4)
28
26
29
22
5
2
1
28
26
STEP 1
CHISEL

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Figure 9 Standard Trim Parts Removal (Steps 1 - 6)
DISASSEMBLY (Continued)
TRIM PARTS REMOVAL
For Reduced Trim:
A Remove the cage adapter ring (Key 24). Refer to Figure
37. NOTE: 6x4 inch valve do not use a cage adapter.
BRemove the cage adapter gasket (Key 25), metal shim
(Key 21), and spiral wound gasket (Key 20).
For 8 inch valve assemblies:
ARemove the load ring (Key 23). Refer to Figure 38.
1 Remove the metal shim (Key 21) and spiral wound
gasket (Key 20) if they haven’t already been removed.
Refer to Figure 9.
2Remove the valve stem (Key 5) / valve plug (Key 3)
assembly from the valve body (Key 1), refer to Figure 9.
Refer to Plug Seal Removal section for disassembly
instructions.
3 Carefully remove the cage (Key 19).
4Remove the seat ring (Key 15) and seat ring gasket (Key
12). For Soft Seat valves: Remove the disk retainer (Key
18), PTFE disk (Key 17), disk seat (Key 16), and seat ring
gasket (Key 12). Refer to Figure 38.
5For Reduced Trim: Remove the seat ring adapter (Key
13) and seat ring adapter gasket (Key 14). Refer to Figure
37. NOTE: 6x4 inch valves do not use a seat ring adapter.
6Clean and inspect all parts for damage, especially gasket
seal surfaces. Replace all damaged parts and gaskets with
new parts as necessary, gaskets cannot be reused.
PACKING PARTS REMOVAL
WARNING: Compressed gasses could be trapped between
packing rings.
NOTE: For Live Loaded Packing refer to Figure 31 and the Live
Loaded Sliding Stem Packing Manual (P-LLPS).
1 Using a blunt or rounded tool or rod, carefully tap the
packing parts (Keys 30, 31, 32, 33, and 34) out of the
packing bore of the bonnet (Key 26). A mechanic’s pick
set can also be used to pull packing parts from the bore.
For other packing arrangements, refer to Figures 29 to 31.
PLUG / STEM
ASSEMBLY
5
3
20
19
12
21
2
1
15

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PLUG SEAL REMOVAL
For Model 360 Two-Piece Plug Seal Ring Assemblies:
1Carefully remove the seal ring (Key 7) from the plug
groove, a pick set or flat screw driver may be required.
Refer to Figure 11.
2Carefully remove the backup ring (Key 6) from the plug
groove, a pick set or flat screw driver may be required.
Figure 10 Packing Parts Removal (Step 1)
DISASSEMBLY (Continued)
PACKING PARTS REMOVAL (Continued)
2Clean and inspect the bonnet for damage, pay particular
attention to the packing bore surface and the gasket
sealing surface. Replace or repair the bonnet as necessary.
Metal packing parts can be reused if they are not
damaged, all other packing parts should be replaced.
Figure 11 Two-Piece Plug Seal Ring Removal (Model 360)
For Model 360 Three-Piece Seal Ring Assemblies:
NOTE: 8 inch valve assemblies have only one-piece plug seals,
they only use a seal ring (Key 8).
1Carefully remove the retaining ring (Key 10) from the plug
groove, a pick set or flat screw driver may be required.
Refer to Figure 12.
2Remove the backup ring (Key 9).
3Remove the seal ring (Key 8).
BLUNT
ROD
26
5
7
6
3

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DISASSEMBLY (Continued)
PLUG SEAL REMOVAL (Continued)
For Model 360 Three-Piece Plug Seal Ring Assemblies
with Anti-Extrusion Rings:
1Carefully remove the retaining ring (Key 10) from the plug,
a pick set or flat screw driver may be required to pry the
spiral rings of the retaining ring apart to assist removal.
Refer to Figure 12.
2Remove the backup ring (Key 9).
3 Remove the anti-extrusion ring (Key 11). The anti-
extrusion ring is only included in valve assemblies rated
for over 450°F (232°C).
4Remove the seal ring (Key 8).
For Model 361 Valves (Refer to Figure 13):
1Remove the piston rings (Key 48). NOTE: Piston rings are
broken in half and can be easily pulled apart.
Figure 12
Three-Piece Plug Seal
Removal (Model 360 Only)
For All Models:
Clean and inspect all parts for damage, especially the stem
(Key 5) and plug (Key 3) surfaces. Minor scratches can be
buffed or lapped out, major scratches (scratches that will stop
a finger nail) will need to be machined or replaced. Replace all
damaged parts and soft parts with new parts.
Figure 13 Model 361 Piston Ring Removal
LAPPING
Expect a certain amount of leakage in valves with metal
seats. In some cases where leakage has become excessive,
lapping can improve sealing performance. Before performing
the lapping process, insure all trim parts have been thoroughly
cleaned and are free of debris. Do not lap soft seat valves.
NOTE: Spiral wound gaskets (Key 20) make their seal by being
crushed and cannot be reused, this includes gaskets required to
be used during the lapping process. It may be desirable to use
an already crushed gasket in the lapping process to be replaced
with new gaskets during reassembly.
CAUTION: Once lapping has been performed with a previously
crushed gasket, it is important to mark the position and
alignment of all trim parts (Keys 3, 15, and 19) before
removal and reassembly. If trim parts are reassembled out of
their lapped alignment excessive leakage may result.
10
9
8
3
5
11*
*Only included in valve
assemblies rated over
450°F (232°C).
5
48
3

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Model 360/361 Control Valves
P-360M1019A 14
Operation, Parts, and Instruction Manual
LAPPING (Continued)
Special Tools Required:
• Soft felt marker
• Two wrenches that will slide over the valve stem (Key 5)
• 400 – 600 grit (fine grit) Loctite®Clover®compound (Key D)
Lapping Procedure
1Install the used seat ring gasket (Key 12) into the valve
body (Key 1).
2Install the seat ring (Key 15). Mark the position of seat
ring using the marker.
3Install the cage (Key 19). Mark the position of cage using
the marker.
4Do not install any plug seals into the valve plug (Key 3).
Apply fine grit Clover®compound to the seating surface of
the valve plug. Install the valve plug / stem assembly
(Keys 3, 4, 5) into the valve. Mark the position of the
plug / stem assembly using the marker.
5Install used bonnet gaskets (Keys 20, 21, & 22).
6Carefully lift the bonnet (Key 26) into place and secure the
bonnet using half of the bonnet nuts (Key 28). Mark the
position of the valve plug (Key 3) on the bonnet (Key 26)
using the marker.
7Install the packing follower (Key 35).
8Install the jam nut (Key 42) on to the valve stem (Key 5)
and build a handle as shown in Figure 14 and 16
using the two wrenches and the hex nut (Key 43).
9Rotate the valve plug (Key 3) back and forth about
a quarter of a full rotation (only a small amount of
movement is required, do not make full rotations)
over the seat ring (Key 15) using the wrench handles.
10 If a seat leak test is to be performed after lapping to test
valve shut off, disassemble the lapping setup after a few
cycles of back and forth plug movement. Replace the used
gaskets (Keys 12, 20, 21, & 22) with new gaskets and
reassemble the valve for testing. NOTE: Another set of
new gaskets will need to be used for the final valve
assembly if the lapping procedure needs to be repeated
after seat leak testing.
Figure 14 Lapping Procedure Setup (Steps 1 - 8)
Figure 15 Lapping Compound Application
42
35
26
5
43
28
2
1
20 19
3
12
15
WRENCH
WRENCH
5
3
APPLY FINE
GRIT CLOVER®
COMPOUND
(KEY D) TO
THE SEATING
SURFACE OF
THE PLUG

Model 360/361 Control Valves
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P-360M1019A 15
Operation, Parts, and Instruction Manual
Figure 16 Lapping Procedure Setup (Steps 8 - 10)
STUD INSTALLATION
1If the studs (Key 2) were replaced, removed, or never
installed, apply nickel anti-seize (Key A) to the threads
of the end of the stud without a material stamp.
2Thread the studs (Key 2) into the valve body (Key 1)
nickel anti-seize coated end first, until they are completely
threaded into the valve body.
PLUG SEAL ASSEMBLY
For Model 360 Two-Piece Plug Seal Ring Assemblies:
Note: Two-piece seals are not available for 8 inch valves.
1Apply Lubriplate®No. 105 (Key C) to the surface of the
backup ring (Key 6).
2Carefully slide the backup ring (Key 6) over the top of the
valve plug (Key 3) and into the groove. Refer to Figure
17.
3Apply Lubriplate®No. 105 (Key C) to the seal ring (Key
7). Carefully slide the seal ring over the top edge of the
valve plug (Key 3) and into the groove, refer to Figure 17.
4Allow time for the seal ring (Key 7) to shrink back to its
original size after installation.
5Before installing the plug/stem assembly into the valve,
apply Lubriplate®No. 105 (Key C) to the outside surface of
the plug (Key 3) as shown in Figure 17.
For Model 360 Three-Piece Plug Seal Ring Assemblies:
1Apply Lubriplate®No. 105 (Key C) to the surface of the
seal ring (Key 8).
2Install the seal ring (Key 8) onto the valve plug (Key 3),
refer to Figure 18 for proper seal ring orientation. NOTE:
8 inch valves are technically one-piece plug seals, 8 inch
valve assemblies use a seal ring only and do not make use
of a backup ring (Key 9) or retaining ring (Key 10).
4Apply Lubriplate®No. 105 (Key C) to the backup ring
(Key 9) and install the backup ring onto the valve plug
(Key 3).
5Apply Lubriplate®No. 105 (Key C) to the retaining ring
(Key 10) and install the retaining ring into the retaining
ring groove on the valve plug (Key 3).
6Allow time for the seal ring material to shrink back to its
original size after being stretched over the valve plug
before installing the plug assembly into the cage (Key 19).
ASSEMBLY
Before You Begin:
• Read Safety Caution (Page 2).
• Use safe work practices and lock out procedures.
• Clean and inspect all parts.
• Replace or repair damaged parts. Replace all soft parts
(Seals, o-rings, gaskets, live loaded packing).
Lubricants Required:
• Permatex®Nickel Anti-Seize or equivalent (Key A)
• Dow Corning Molykote®111 or equivalent (Key B)
• Lubriplate®No. 105 Grease or equivalent (Key C)
43
42
28
1
26
2
29
35
5
WRENCH
WRENCH

Dyna-Flo Control Valve Services Ltd.
Phone: 780 •469 •4000 Toll Free: 1 •866 •396 •2356 Fax: 780 •469 •4035 Website: www.dynaflo.com
Model 360/361 Control Valves
P-360M1019A 16
Operation, Parts, and Instruction Manual
Figure 17 Two-Piece Plug Seal Assembly (Model 360 Only)
Figure 18 Three-Piece Plug Seal Assembly (Model 360 Only)
10C
9C
8C
3C
9
10
8
SPRING-LOADED SEAL RING
FOR FLOW DOWN VALVES -
THE “CUP” OF THE SEAL RING
(KEY 8) FACES DOWN.
SPRING-LOADED
SEAL RING
FOR FLOW UP
VALVES - THE “CUP”
OF THE SEAL RING
(KEY 8) FACES UP.
NOTE: APPLY
GREASE TO
ENTIRE
OUTSIDE
SURFACE OF
PLUG.
SPRING-LOADED SEAL RING
FOR BI-DIRECTIONAL
VALVES - THE “CUP” OF THE
SEAL RINGS (KEY 8) FACE
EACH OTHER.
9
9
5
5
7 C
6 B
33C
NOTE: APPLY GREASE
TO ENTIRE OUTSIDE
SURFACE OF PLUG
BEFORE INSTALLATION.
6
7

Model 360/361 Control Valves
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P-360M1019A 17
Operation, Parts, and Instruction Manual
Figure 19 Plug Seal Assembly with Anti-Extrusion Ring
ASSEMBLY (Continued)
PLUG SEAL ASSEMBLY (Continued)
For Model 360 Three-Piece Plug Seal Ring Assemblies
with Anti-Extrusion Rings:
1Apply Lubriplate®No. 105 (Key C) to the surface of the
seal ring (Key 8).
2Install the seal ring (Key 8) onto the valve plug (Key 3),
refer to Figure 18 for proper seal ring orientation. NOTE:
8 inch valves are technically one-piece plug seals, 8 inch
valve assemblies use a seal ring only and do not make use
of a backup ring (Key 9) or retaining ring (Key 10).
3Apply Lubriplate®No. 105 (Key C) to the anti-extrusion
ring (Key 11) and install the anti-extrusion ring on to the
valve plug as shown in Figure 19. NOTE: Anti-extrusion
rings are only used for valve assemblies rated to exceed
450ºF (232ºC).
4Apply Lubriplate®No. 105 (Key C) to the backup ring
(Key 9) and install the backup ring onto the valve plug
(Key 3).
5Apply Lubriplate®No. 105 (Key C) to the retaining ring
(Key 10) and install the retaining ring into the retaining
ring groove on the valve plug (Key 3).
6Allow time for the seal ring material to shrink back to its
original size after being stretched over the valve plug
before installing the plug assembly into the cage (Key 19).
For Model 361 Valves:
NOTE: Replacement piston rings (Key 48) come in one piece.
Before installation it is necessary to break the piston ring into
two pieces. Do not saw or cut the piston rings. Use caution
when breaking piston rings as they can be easily damaged.
Piston Ring Vise Break Method:
Piston rings (Key 48) can be broken into two pieces using a vise
with smooth jaws or jaw softeners.
Special Tools Required:
• Vise
• Electrical Tape
1Wrap electrical tape once around the outside diameter of
the piston ring (Key 48). Electrical tape will help contain
the piston ring while it is being broken. Refer to Figure 21.
2Place the piston ring into the jaws of the vise as shown in
Figure 22.
3Slowly compress the piston ring in the vise until the ring
snaps on both sides. If one side of the piston ring snaps
first, continue compressing the piston ring until the other
side snaps as well.
Piston Ring Scoring Break Method:
If no vise is available, piston rings (Key 48) can be scored with
a knife and broken over a hard surface. Do not saw or cut the
piston rings in half.
1Wrap electrical tape once around the outside diameter of
the piston ring (Key 48). Electrical tape will help contain
the piston ring while it is being broken. Refer to Figure 21.
2Score (do not cut) the top surface of the piston ring.
3Place half of the piston ring over the edge of a hard surface
(such as a table edge) so that the score marks are in a
parallel line with the edge of the hard surface.
4Apply downward pressure to both sides of the piston ring
until it snaps in half.
5Remove the electrical tape. Install each half of the broken
piston ring into the piston ring groove in the valve plug
(Key 3). Refer to Figure 20.
10
C
9
C
11
C
8
3
NOTE: KEY
11 IS TWO
PIECES AND
MUST BE
ARRANGED
AS SHOWN.
FLOW DOWN
ORIENTATION
FLOW UP
ORIENTATION

Dyna-Flo Control Valve Services Ltd.
Phone: 780 •469 •4000 Toll Free: 1 •866 •396 •2356 Fax: 780 •469 •4035 Website: www.dynaflo.com
Model 360/361 Control Valves
P-360M1019A 18
Operation, Parts, and Instruction Manual
Figure 21 Model 361 Piston Ring Vise Break Method (Step 1) Figure 22 Model 361 Piston Ring Vise Break Method (Step 2)
Figure 20 Model 361 Piston Ring Installation
NOTE: APPLY GREASE TO ENTIRE OUTSIDE SURFACE
OF PLUG.
485
C
3
NOTE: STAGGER THE
BREAKS IN THE PISTON
RINGS.

Model 360/361 Control Valves
Dyna-Flo Control Valve Services Ltd.
Phone: 780 •469 •4000 Toll Free: 1 •866 •396 •2356 Fax: 780 •469 •4035 Website: www.dynaflo.com
P-360M1019A 19
Operation, Parts, and Instruction Manual
ASSEMBLY (Continued)
TRIM PARTS ASSEMBLY
NOTE: Spiral wound gaskets (Keys 20) make their seal by
being crushed and cannot be reused.
1Apply nickel anti-seize (Key A) to the seat ring pocket
of the valve body (Key 1) and top surface of the seat ring
gasket (Key 12). Install the seat ring gasket into the valve
body (Key 1). Refer to Figure 23.
2 For Reduced Trim: Install the seat ring adapter (Key
13) into the valve body. Apply nickel anti-seize (Key A)
to the top of the seat ring adapter and top of the second
seat ring gasket (Key 14) and install it onto the seat ring
adapter. Refer to Figure 37. NOTE: 6x4 inch reduced trim
does not use a seat ring adapter, 6x4 inch valves have a
special seat ring (Key 15).
3Install the seat ring (Key 15) into the valve body (Key 1).
Refer to Figure 34 for Angle Body valve assemblies.
For Soft Seat Valves: Install the disk seat (Key 16) onto
the seat ring gasket (Key 12). Install the PTFE disk (Key
17) onto the disk seat. Install the disk retainer (Key 18)
onto the PTFE disk. Refer to Figure 36.
4Install the cage (Key 19). Install the baffle (Key 50) and
cage retainer for Low-Noise trim, refer to Figure 35 for
Low-Noise trim.
5Apply Lubriplate®No. 105 (Key C) to the side of the valve
plug (Key 3) (Refer to Figures 17, 18, & 20). Install the
valve plug assembly into the cage (Key 19) (Refer to Figure
23).
6Apply nickel anti-seize (Key A) to the gasket surface of
the cage (Key 19) or cage retainer (Key 49) and top
surface of the spiral wound gasket (Key 20), metal shim
(Key 21), and bonnet gasket (Key 22). Install the gaskets
and shim as shown in Figure 23 or 35 for Low-Noise trim.
For Low-Noise Valves: Install the bonnet spacer (Key
26A) as shown in Figure 35. Apply nickel anti-seize (Key A)
to the gasket seating surface of the bonnet spacer
(Key 26A) and top surface of the bonnet gasket (Key 22)
and install. Install the load ring (Key 23).
For 8 Inch Valves: Apply nickel anti-seize (Key A)
to the gasket seating surface of the valve body (Key 1)
and top surface of the bonnet gasket (Key 22) and install.
Install the load ring (Key 23). Refer to Figure 38.
Figure 23 Trim Parts Assembly
BONNET INSTALLATION
Before You Begin:
• Read Safety Caution (Page 2).
• Clean and inspect all parts.
• Replace or repair damaged parts. Replace all soft parts
(Seals, o-rings, gaskets, live loaded packing).
7 For Reduced Trim: Install the cage adapter (Key 24).
Apply nickel anti-seize (Key A) to the top of the cage
adapter and top surface of the cage adapter gasket (Key
25) and install. Refer to Figure 37. NOTE: 6x4 inch
reduced trim does not use a cage adapter, 6x4 inch
valves have a special cage (Key 19).
A 22
21 A
A 20
A
A
15
19 2
5
7
3
12 A
1

Dyna-Flo Control Valve Services Ltd.
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Model 360/361 Control Valves
P-360M1019A 20
Operation, Parts, and Instruction Manual
ASSEMBLY (Continued)
BONNET INSTALLATION (Continued)
1Apply nickel anti-seize (Key A) to the gasket sealing
surface of the valve bonnet (Key 26).
2Lift and lower the valve bonnet (Key 26) into place over
the valve stem (Key 5). Be careful not to damage either
the stem, bonnet, or valve body (Key 1).
3Apply nickel anti-seize (Key A) to the threads of the
bonnet studs (Key 2). Thread the bonnet nuts (Key 28)
onto the bonnet studs until hand tight.
4Stroke the valve a few times to center the valve trim.
5It may help to install the packing follower (Key 22) during
bonnet installation to act as a visual cue to indicate areas
of over or under tightening. If the packing follower begins
to bind or appear lop-sided, this is an indication that
torquing procedures in Steps 6 & 7 need to be altered to
correct areas that need more tightening or less. The
packing follower should remain centered during the
torquing process.
6Follow proper body-to-bonnet bolting procedures. Begin to
torque the bonnet nuts (Key 28) ¼ (25%) of the torque
value listed in Table 5, torque the nuts in a crisscross
pattern as shown in Figure 25. Hot torquing the valve nuts
is not recommended.
7Continue tightening the bonnet nuts (Key 28), increasing
the torque by ¼ (25%) of the final torque specification
each round of tightening while repeating the crisscross
pattern until the final torque specification is reached.
8Double check the tightness of all nuts by torquing the
nuts to the final torque specification one more time after
the final torque value was reached.
Figure 24 Bonnet Installation
1
2
3
4
1
2
3
45
6
1
2
34
5
6
7
8
Figure 25 Bolt Tightening Pattern Diagram
SAMPLE BOLT CONFIGURATION
2 A
5
28
26
1