Dyna-Flo 361 Parts list manual

Model 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-361S0615A 1
Operation, Parts, and Instruction Manual
Supplement
Figure 1 Model 361 Control Valve
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.
These instructions are meant to be used with the Dyna-Flo 361 Technical Sales Bulletin (P-361B0615B) and 360 Operation, Parts,
and Instruction Manual (P-360M0215A) as they refer to Instructions, Figures, Safety Information, and Tables therein. If you do not
have these documents, contact Dyna-Flo immediately, or visit www.dynaflo.com.
The Model 360 Operation, Parts, and Instruction Manual can be used to service Model 361 valves with the exception of
instructions pertaining to the seal ring (Key 34), backup ring (Key 35), and retaining ring (Key 40). Model 361 valves are equipped
with a piston ring (Key 41), or multiple piston rings in place of the above mentioned parts (Keys 34, 35, and 41). Piston rings have
specific assembly and disassembly instructions which are covered in this Supplement. All Safety Warnings, Cautions, and Notes
contained within the 360 Instruction Manual will apply to service of the 361 control valve and must be followed.

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 361 Control Valves
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Operation, Parts, and Instruction Manual
Supplement
CAUTION
To avoid personal injury or installation damage as a
result of the sudden release of process pressure or
the breaking of parts, do not install the valve
assembly where service conditions could exceed the
limits stated in this manual or on the equipment
nameplates. Use government codes, accepted
industry standards and good piping practices to
select pressure-relieving equipment for protection of
your installation. It is also important to wear the
proper protective equipment when performing any
installation or maintenance activity.
Refer to the 360 Instruction Manual for the following information:
Unpacking Valve From Shipping Container (Page 4)
Installation (Page 4)
Periodic Inspection (Page 5)
Maintenance (Page 5)
Packing Maintenance (Page 6)
Lapping (Page 8)
VALVE DISASSEMBLY
Instructions concerning Valve Disassembly (Page 7 of P-360M)
will be the same for Model 361 valves except for Step 1 of Trim
Parts Removal (plug / seat / cage).
1Piston ring:
Piston rings (Key S1) will be broken in half, simply pull
apart the sections of piston ring and remove them. Proceed
to Step 2 of P-360M Trim Parts Removal instructions. Refer
to Figure 1 of this document.
Note: Model 361 valves have a one-piece metal seat ring
(Key 21).
VALVE ASSEMBLY
Instructions concerning Valve Assembly (Page 9 of P-360M)
will be the same for Model 361 valves except for Step 1 of Trim
Parts Assembly. Refer to Figure 1 of this document.
1For one-piece metal seat ring (Key 21) refer to the Lapping
section (Page 8 of P-360M) before assembling the valve.
After lapping has been completed, assembly as follows:
NOTE
Use an anti-seize compound that is approved for
the service conditions that the valve is being
installed into.
ACoat the seat ring gasket with anti-seize compound
and insert it into the seat pocket in the body.
BInsert a one-piece seat ring (Key 21) into the seat
pocket.
CInsert the cage (Key 18) into the body (Key 15).
DInstall piston rings (Key S1):
NOTE
Replacement piston rings come in one piece.
Before installation it is necessary to break the
piston ring into two pieces. Do not saw or cut
piston rings. Use extreme caution when breaking
piston rings as they can be easily damaged.
Vise Break (See Figure 2)
Piston rings can be broken into two pieces using a vise with
smooth jaws or softeners. Wrap electrical tape once around
the outside diameter of the piston ring to contain it while it
is being snapped in half. Place the unbroken piston ring
into the jaws of the vise so that they will compress the
ring into an oval. Slowly compress the piston ring until the
ring snaps on both sides, if one side snaps first, simply
keep compressing until the other side snaps.
Scoring (See Figure 2)
If no vise is present, wrap electrical tape once around the
outside diameter of the piston ring to contain it while it is
being snapped in half. score (don’t cut) the piston ring and
snap it over a hard surface (such as the edge of a work
bench or table.
Proceed to Step 2 of the Trim Parts Assembly section of
the 360 Instruction Manual (P-360M).
Table 1
Valve Shutoff Clasifications
Valve Model Shut Off Capability Port Diameter Inch (mm) Seal Rings
361 Class II Standard 1-5/16 - 8 (33 - 203) Standard with Single Graphite Piston Rings Class III 3-7/16 (87) or larger Optional for Single Graphite Piston Rings
Class IV 4-3/8 (111) or larger Multiple Graphite Piston Rings

Model 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-361S0615A 3
Operation, Parts, and Instruction Manual
Supplement
Figure 1 Model 361 Piston Ring Detail (Refer to P-360M for Key Numbers)
Key 41 - Multiple
Graphite Piston Ring
(See Page 4)
1
17
18
16
21
26
15
24
25
18
1
22
15
Key 41 - Single
Graphite Piston Ring
(See Page 4)

Dyna-Flo Control Valve Services Ltd.
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Model 361 Control Valves
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Operation, Parts, and Instruction Manual
Supplement
Our Commitment to Quality
Dyna-Flo is committed to continuous improvement. While all efforts have been made to ensure the accuracy of the content in
this document, modifications or improvements to the information, specifications, and designs may occur at any time without
notice. This document was published for informational purposes only, and does not express or imply suitability, a warranty,
or guarantee regarding the products or services described herein or their use or applicability.
Neither Dyna-Flo Control Valve Services Ltd., nor any of their affiliated entities assumes responsibility for the selection, use
and maintenance of any product. Responsibility for selection, use and maintenance of any product remains with the purchaser
and end-user.
Parts
Key Description Part Number
41
Piston Ring
Graphite
1-5/16” Port 1U2174X002D
1-7/8” Port 1U2216X002D
2-5/16” Port 1U2258X002D
2-7/8” Port 1U2300X002D
3-7/16” Port 1U2342X002D
4-3/8” Port 1U2392X002D
7” Port 1U5069X002D
8” Port 10A3262X03D
NOTE: For Model 361 valve plug (Key 16) part numbers contact Dyna-Flo.
Figure 2 Model 361 Piston Ring Electrical Tape Wrap and Vise Break

Model 360 Control Valve
Dyna-Flo Control Valve Services Ltd.
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P-360M0215A 1
Operation, Parts, and Instruction Manual
TABLE OF CONTENTS
Introduction 2 Assembly 9
General 2 Trim Parts 9
Scope 2 Bonnet Assembly 10
Specifications 3 Packing Assembly 10
Unpacking 4 Body to Bonnet Stud Torque - Table 1 11
Installation 4 Valve Stem Connection Torque - Table 2
Air Piping 4 Packing Diagram - Figure 8 & 9 12-13
Periodic Inspection 5 Packing Nut Torque - Table 3 14
Maintenance 5 Valve Seal Diagram - Figure 11 14
Removing Actuator 5 Control Valve Cross Section - Figure 12 15
Needle Valve Setup - Figure 2 5 Parts 16
Rigging Setup - Figure 3 6 Valve Plug - Table 4 20-21
Yoke Nut Loosening -Figure 4 6 Packing Box Parts - Table 5 22
Packing Maintenance 6 Valve Plug & Stem (2 Piece Seal Ring) - Table 6 23
Valve Disassembly 7 Cage - Table 7 24
Bonnet Removal 7 Valve Stem - Table 8 25
Trim Parts Removal 7 Gasket Descriptions - Table 9 26
Packing Parts Removal 8 Gasket Kits - Table 10 26
Body Gasket Removal 8 Packing Repair Kits - Table 11 27
Lapping 8 Model Builder 28
Figure 1 360 Control
Valve & DFC Actuator

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 Control Valve
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Operation, Parts, and Instruction Manual
NOTICE These instructions are meant to be used with the Dyna-Flo 360 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 Control Valves. Revisions and updates 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 fluid
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 maintaining the Dyna-Flo 360 Control Valve.
CAUTION
To avoid personal injury or installation damage as a result of the sudden release of process pressure or the breaking of
parts, do not install the valve assembly where service conditions could exceed the limits stated in this manual or on
the equipment nameplates. Use government codes, accepted industry standards and good piping practices to select
pressure-relieving equipment for protection of your installation. It is also important to wear the proper
protective equipment when performing any installation or maintenance activity.
INTRODUCTION
The Model 360 Control Valves are heavy duty globe style control valves used in many demanding oil and gas applications from well
head to gas plant and beyond. The Model 360 is also suited for any refinery or chemical process that requires a rugged and easy to
maintain control valve solution.
Model 360 control valves are cage guided, pressure balanced with push down to close plug action. The actuator typically used for
360 control valves are Dyna-Flo model DFC or DFO linear actuators. These heavy duty actuators are spring return diaphragm style,
and can be used for throttling or on/off service, with or without a valve positioner.
The Model 360 control valve is manufactured to a high level of quality specifications to ensure superior performance and customer
satisfaction.

Model 360 Control Valve
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-360M0215A 3
Operation, Parts, and Instruction Manual
SPECIFICATIONS
Configurations
The Model 360 control valve is a high capacity single port,
globe style valves, with a bolted type bonnet. The standard
valve plug action is push down to close.
PTFE Seat and Metal Seat Available.
Consult your Dyna-Flo sales office for other available
configurations.
Sizes and Connection Styles
Models: 360
Size: 1”, 1-1/2”, 2”, 3”, 4”, 6”, 8”
Rating: ASME 150 / 300 / 600
Connections: RF / RTJ - All Sizes
NPT - 1”, 1-1/2” and 2”
Maximum Inlet Temperature and Pressures
Flanged valves consistent with ASME Class rating as per
ASME B16.34, unless limited by either material pressure
and temperature limitations.
Maximum Pressure Drops
Maximum pressure drop is the same as maximum inlet
pressure unless otherwise rated by a specific trim
construction.
Standard Shut-off Classifications
In accordance with ASME / FCI 70.2 Metal Seated:
Standard Class IV.
Class V-VI options available, consult Factory.
Anti-Cavitation 1 Stage Trim: Standard Class IV.
Optional Class V.
Anti-Cavitation 2 Stage Trim: Standard Class V
PTFE Seated: Standard Air Test.
(maximum leakage 0.05 ML/min/psid/inch port diameter)
NOTE: Standard Air Test is a special non-ASME/FCL leakage
class.
Flow Direction
Flow Down (Low Noise Trim - Flow Up).
Dimensions
Valve and Actuator Outline Dimension Diagram
See Figure 2 of Sales Bulletin.
Valve and Actuator Assembly Dimensions
See Table 2, 3, and 4 of Sales Bulletin.
Approximate Valve Body and Actuator Weights
See Table 2 of Sales Bulletin.
Materials
Body and bonnet material options include LCC, WCC, and
CF8M. See Figure 5 of Sales Bulletin for typical construction
materials. See Table 8 of Sales Bulletin for trim selections.
Cross-Section of the Model 360 Control Valves
See Figure 3 of Sales Bulletin.
Port Diameters and Maximum Valve Plug Travel
See Table 1 of Sales Bulletin.
Packing Type
The Standard packing is PTFE V-ring. Live-loaded low
emission, graphite and other packing arrangements are
available.
Valve Sizing Coefficients
See Table 12 - 15 of Sales Bulletin.
Actuator Sizing
Fail Open Actuator
See Table 16 of Sales Bulletin.
Fail Close Actuator
See Table 17 of Sales Bulletin.
Service Application
See Table 8, 9, 10, and 11 of Sales Bulletin.
For more information and other options contact your Dyna-Flo
sales office.

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Phone: 780 •469 •4000 Toll Free: 1 •866 •396 •2356 Fax: 780 •469 •4035 Website: www.dynaflo.com
Model 360 Control Valve
P-360M0215A 4
Operation, Parts, and Instruction Manual
UNPACKING VALVE FROM SHIPPING CONTAINER
Check the packing list against materials received, while unpacking the valve. The Packing List describes the valve and accessories in
each shipping container.
When lifting the valve from shipping container, look for factory installed lifting hooks on the actuator casing. If there are no lifting
hooks, it is advisable to remove 2 actuator casing bolts, 180oapart, and temporarily replace them with eyebolts and nuts.
See Figure 3 for details. Position the lifting straps through the eyebolts to avoid damage to the tubing and mounted accessories.
INSTALLATION
Before installing the valve, clean dirt, welding chips, scale or other foreign material from the line.
Inspect flange gasket surfaces for damage.
Check packing box bolting for proper tightness. Packing nuts should be slightly over finger-tight; however, tighten only as necessary
to prevent stem leakage.
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.
1Install the valve with flow through the valve in the direction indicated in Specifications (Page 3). The valve assembly may be
installed in any position unless limited by vibration considerations.
CAUTION
The normal method is with the actuator vertical above the valve body. In some non-vertical applications, the
actuator may need to be supported.
WARNING
Keep hands, hair and clothing away from all moving parts when operating the valve! Serious injury can result
from failure to do so!
2When possible, stroke the valve and check for smooth operation through the full-stroke. Unsteady valve stem movement could
be an indication of an internal problem.
Air Piping
The actuators are designed to accept 1/4” NPT connection. Use 3/8” OD tubing (or equivalent) for all air lines. All connections must
be free of leaks.
CAUTION
Do not exceed maximum casing pressure indicated on serial plate located on the yoke of the actuator or in the
Technical (Sales) Bulletin appropriate for the actuator type.
CAUTION
Do not over tighten packing! This can cause excessive packing wear and high stem friction that may impede stem
movement! Refer to Table 2 for Packing Torque.
WARNING
The following maintenance procedures require removing the control valve from service. To avoid personnel injury,
only qualified technicians should perform the following procedures. Always ensure the control valve is fully
released of pressure or process fluid before starting maintenance.

Model 360 Control Valve
Dyna-Flo Control Valve Services Ltd.
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Operation, Parts, and Instruction Manual
PERIODIC INSPECTION
CAUTION
Use safe work practices and lock out procedures
when isolating valves and actuators! Always be
aware of flammable instrument gas!
1 Avoid personal injury from sudden release of process
pressure! Before performing any maintenance operation:
A Disconnect any power supply media lines providing air
/ gas pressure, electric power, or a control signal to
the actuator. Ensure the actuator cannot suddenly
operate the valve.
B Isolate the valve from process pressure with bypass
valves or completely shut off the process. Relieve
process pressure, and drain the process fluid from the
up and down stream of the valve.
C Vent the pneumatic actuator loading pressure and
relieve any actuator spring preload.
D Use Safety lock-out procedures to be sure that the
above provisions stay in effect while you complete the
work on your equipment.
2 Check for process fluid leakage to the atmosphere through
the body to bonnet joint and (if equipped) any NPT
connection.
3Examine the valve for damage caused by corrosive fumes
or process drippings.
4Clean the valve and repaint areas of severe oxidation.
5Make sure positioner linkage (if equipped) and stem
connector are securely fastened. If the stem connector is
loose, check plug thread engagement and retighten. Refer
to the Dyna-Flo Model DFC, or DFO Manual for detailed
instructions.
6Ensure all accessories, mounting brackets and fasteners
are secure.
7Clean any dirt and foreign material from the valve stem.
MAINTENANCE
Only “Certified Technicians” should be dissasembling
and inspecting these valves and actuators.
CAUTION
Actuator spring is under compression. The actuator
is also under pneumatic / gas pressure. Ensure
actuator has been disconnected from supply lines
before starting any work on the actuator.
The actuator needs to be supported before the yoke
nut can be removed, failure to support actuator
could result in actuator damage and/or personal
injury.
Removing Actuator from Valve
Refer to the Dyna-Flo Model DFC/DFO Manual for detailed
instructions.
1Disconnect all pneumatic/gas supply lines and any other
lines that might supply pressure to the actuator.
ON MODEL DFC (FAIL CLOSED) ACTUATORS
Connect a supply line to the inlet port of the actuator.
Be sure not to exceed the maximum casing pressure.
This will open the valve and take downward force off the
stem connector.
Figure 2 Needle Valve with Gauge setup

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Operation, Parts, and Instruction Manual
MAINTENANCE (Continued)
Removing Actuator from Valve (Continued)
2Remove the stem connector (Refer to the DFC / DFO
Instruction Manual for stem connector removal
instructions).
3Support the actuator - the actuator may be able to be
removed manually on the smaller sizes. It is recommended
the lifting hooks attached to the actuator casing be used
(see Figure 3). If there are no lifting hooks, it is advisable
to remove 2 actuator casing bolts, 180oapart, and
temporarily replace them with eye bolts and nuts. Position
the lifting straps through the lifting hooks or eye bolts to
avoid damage to the tubing and mounted accessories.
5Remove the jam nuts and travel indicator from the valve
stem. Refer to DFC / DFO actuator manual for disassembly
procedures for actuators.
6Once actuator has been removed from the valve the air
pressure in the actuator can be released.
(DFC actuator only)
NOTE
For Actuator to Valve Mounting (Assembly) see
appropriate Actuator Instruction Manual.
Packing Maintenance
Refer to Figures 9, 10, & 12 for packing orientation and Key
numbers for the following section. For live loaded packing
instructions, refer to the P-LLPS Instruction Manual.
For single (spring-loaded) packing:
A Spring-loaded packing has constant force applied to the
packing set (Key 2) through a spring (Key 5) in the
packing bore. Ensure that the packing follower (Key 8) is
in contact with the bonnet (Key 1), if not tighten the packing
nuts (Key 12) until the packing follower comes in contact
with the bonnet. If this does not stop the leak then the
packing will need to be replaced. In some cases the bonnet
and/or stem (Key 17) may need to be polished or replaced.
BRefer to Valve Disassembly section for Packing Removal
and Inspection.
CAUTION
Do not tighten the packing nuts past the
recommended maximum torque value as this will
cause high stem friction and could cause the valve to
operate incorrectly.
For double packing / graphite ring packing:
A Double packing consists of two packing sets (Key 2)
separated by a lantern ring (Key 6). Both styles of packing
require that the packing nuts (Key 12) be kept tight to
keep force on the packing. If leakage is detected from the
packing, the packing nuts can be tightened to apply more
force on the packing set (make sure not to exceed the
maximum allowable torque values, see Table 2). If this
does not seal off the leak then the packing will need to be
replaced. In some cases the bonnet (Key 1) and/or stem
(Key 17) may need to be polished or replaced.
BRefer to Valve Disassembly section for Packing Removal
and Inspection. Refer to Figures 9 and 10 for double and
graphite packing arrangements.
Figure 3 Actuator Lifting Hooks
Figure 4 Yoke Nut being loosened with a Chisel
4Use a blunted heavy chisel to loosen yoke nut (See Figure
4), unscrew yoke nut off of bonnet. Lift actuator off of
valve and store in a safe place.

Model 360 Control Valve
Dyna-Flo Control Valve Services Ltd.
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Operation, Parts, and Instruction Manual
VALVE DISASSEMBLY
CAUTION
If maintenance is to be performed on the valve
inline, relieve process pressure and drain the
process media from the upstream and downstream
sides of the valve. Check that bypass valves are used
or the process has been completely shut down.
Bonnet Removal
1Loosen the packing nuts (Key 12) until the packing follower
(Key 8) is loose. Loosen the bonnet nuts (Key 28) one turn
after contact with the bonnet is broken. The bonnet may
need to be rocked loose or loosened from the body by
prying at the bonnet-to-body joint (See Figure 5). Take
care not to damage the gasket-sealing surface when
separating the bonnet. If no process medium leaks from
the bonnet-to-body joint removal of the bonnet nuts
(Key 28) can proceed.
2When removing the bonnet (Key 1) ensure that the stem /
plug assembly (Key 19) does not drop out of the bonnet.
This could damage the plug seating surface.
3A razor or a pick-set can be used to remove old gaskets.
Inspect the gasket-sealing surface for scratches or dents
that may cause the gasket to leak.
NOTE
Spiral wound gaskets (Key 24) make their seal by
being crushed. Spiral wound gaskets cannot be
reused.
4Inspect threads on bonnet studs (Key 27) and on packing
studs (Key 11) for any damage.
Trim Parts Removal (plug/seat/cage)
Refer to Figures 11 & 12.
NOTE
For instructions on Cavitation and Noise Reduction
Trim contact the Dyna-Flo Sales Office.
1 For one-piece seal ring (spring-loaded): To remove the
seal ring (Key 34), first pry the retaining ring (Key 40) out
of the groove, then remove the metal backup ring (Key
35). Finally remove the seal ring from the plug.
For two-piece seal rings: These rings (Keys 34 & 35)
can be cut with a sharp knife; this will allow you to remove
the rings without damaging the sealing surface on the
plug.
On 8-inch valves the load ring (Key 36) will need to be
removed from the cage.
2Inspect the valve stem (Key 17) for any deep scratching or
corrosion also inspect the threads for any damage. Minor
scratching or corrosion is acceptable. A minor scratch can
be defined as a scratch that will not stop your fingernail
when you run it across the scratch. Anything other then a
minor scratch will need to be sent to the factory to be
refurbished back to the 4μin finish.
3Inspect the seating area on the plug (Key 16). Some minor
scratching or corrosion can be lapped out of the plug. The
plug can be machined and lapped to remove damage
caused by normal wear, corrosion or erosion. Care must be
taken not to machine the seat surface back to far as this
will effect the position of the seal ring in the cage and may
cause failure.
4Inspect the seal ring sealing surface on the plug for any
scratching.
5For one-piece metal seat ring (Key 21): Inspect the
metal seat surface for any damage caused by erosion,
corrosion or deep scratching. Minor scratching or corrosion
can be removed by lapping or machining. Seat ring will need
to be replaced if lapping or machining cannot remove the
damage. Also inspect the gasket-sealing surface for any
damage.
For three-piece soft seat ring disassembly (Keys 31,
32 & 33): The disk seat (Key 32), PTFE disk (Key 33) and
disk retainer (Key 31) will need to be inspected for any
damage. Minor scratching is acceptable on these parts.
Figure 5 Body being separated with a chisel

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Operation, Parts, and Instruction Manual
VALVE DISASSEMBLY (Continued)
Trim Parts Removal (plug/seat/cage) (Continued)
5For three-piece soft seat ring disassembly
(Keys 31, 32 & 33) (Continued: The angle on the disk
seat that supports the PTFE disk must be in good condition
in order to seal effectively. If the PTFE disk cannot seal the
imperfections on the disk seat, the valve will leak. These
parts will need to be replaced if there is deep scratching
or corrosion. The PTFE disk would normally be replaced
during routine maintenance.
6Inspect the inside diameter of the cage (Key 18) for signs
of erosion, corrosion or deep scratching. Cages can be
polished, but any deep scratching or corrosion is cause for
replacement.
7Inspect the gasket surfaces on the load ring (Key 36) for any
damage.
Packing and Packing Parts Removal
CAUTION
Concentrated gases could be trapped in the packing!
For live loaded packing removal instructions refer to
the P-LLPS manual.
1 Remove all packing parts (Keys 2 through 9, & 14) from
the packing bore. Use a rounded tool to remove the
packing set (Keys 2 & 3) from the packing bore. Clean
all metal parts; if they are not damaged they can be
reused.
2Inspect the packing bore for any scratching or corrosion;
minor scratching or pitting in the packing bore can be
polished out.
Body Gasket Removal
1A razor or a pick-set can be used to remove old gaskets.
CAUTION
Care must be taken to avoid damaging these
surfaces.
NOTE
Spiral wound gaskets (Key 24) make their seal by
being crushed. Spiral wound gaskets cannot be
reused.
2 Inspect all gasket surfaces for damage.
3Inspect the internal body surfaces for any signs of
corrosion, erosion or irregular wear.
LAPPING
Hand lapping is typically performed on new metal seats to
optimize sealing performance. In some cases during
maintenance, sealing performance of metal seats can be
improved by hand lapping. Dyna-Flo recommends the
lapping of metal seats on all Model 360 valves when new
trim is installed or when seats have been re-machined.
Before proceeding with LAPPING process, inspect the plug /
stem and seat as described in Trim Parts Removal (page 7).
1Ensure all valve parts have been thoroughly cleaned before
lapping. If the valve plug (Key 16) and seat ring (Key 21)
have minor scratches on the seating surface, lapping can
remove thes scratches without having to replace or
machine the plug or seat ring.
2The seat ring (Key 21) and valve plug (Key 16) can be
lapped with the seat in or out of the body. Having the seat
ring out of the body will ensure that no lapping compound
will be left behind in the body that may get in between the
seats causing the valve to leak.
3Coat the seating surface of the seat ring (Key 21) with fine
grit lapping compound (400-600). Place the valve plug
(Key 16) onto the seat ring without the seal ring (Key 34)
or backup ring (Key 35) installed.
4Lubricate the inner diameter of the cage with light
assembly grease. Place the cage (Key 18) over the valve
plug (Key 16) and down onto the seat. Refer to Figure 6.
This will ensure that no lapping compound gets between
the cage and plug.
Figure 6 Plug going into Cage

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LAPPING (Continued)
5Carefully place bonnet (Key 1) over the stem (Key 17) and
down on top of cage (Key 18). Place packing follower (Key
8) over the stem and into the packing bore. The bonnet
and packing follower act as a guide while you are lapping,
these parts will keep the plug centered while lapping. Use
two jam nuts and two and two wrenches to make a lapping
handle. Refer to Figure 7 for lapping handle setup.
ASSEMBLY
Ensure that all parts have been cleaned and inspected as
per disassembly section.
Trim Parts Assembly
1 For one-piece metal seat ring refer to Lapping section
(page 8) for instructions before assembling valve. After
lapping has been completed assemble as follows.
For a three piece soft seat ring design:
NOTE
Use an anti-seize compound that is approved
for the service conditions that the valve is
being installed into.
A Coat the seat ring gasket with nickel anti-seize
compound and insert it into the seat pocket in the
body.
BInsert a one-piece seat ring (Key 21) or a three-
piece (Keys 31, 32, & 33) seat ring assembly into
seat pocket.
CInsert the cage (Key 18) into the body (Key 15).
DInstall one-piece or two-piece seal ring (Key 34)
onto plug.
Figure 8 Lap-line
Figure 7 Lapping Handle
6Rotate the valve plug (Key 16) in a clockwise direction and
then a counter clockwise direction (only a small amount of
rotation is required), apply a light downward force while
rotating the valve plug back and forth. After 3 full cycles of
turning the valve plug and stem (Key 19), lift the valve
plug off of the seat ring (Key 21) to allow for fresh lapping
compound to get in between the seats.
CAUTION
If while lapping the seats you start to hear a
squeaking noise as you rotate the plug / stem, you
will need to add more lapping compound to the seats
as this noise is caused by shortage of lapping
compound.
7Remove the packing follower (key 8) and bonnet (Key 1),
wipe the lapping compound off of all parts, inspect plug
sealing surface, there should be a fine “lap-line” around the
plug. Refer to Figure 8 for “lap-line”. If this “lap-line” is not
symmetrical all the way around the plug and seat ring then
they will both need to be lapped further or possibly
replaced. Any deep scores will require that the plug be
machined or replaced.

Dyna-Flo Control Valve Services Ltd.
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Model 360 Control Valve
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Operation, Parts, and Instruction Manual
ASSEMBLY (Continued)
Trim Parts Assembly (Continued)
1 For one-piece seal ring:
A Refer to assembly diagram (Figure 11). Lubricate
plug seal diameter and install seal ring (Key 34) with
cup facing the correct direction as shown in
diagram. Install back up ring (Key 35) and retaining
ring (Key 40) as shown.
NOTE
On 8 inch valves the seal ring will need to be
gently stretched over the top edge of the plug.
Use a constant force when stretching the ring
over the plug, failure to do so will cause the
ring to get damaged. Refer to Figure 12 for 8
inch seal ring orientation.
C Allow time for the PTFE material to shrink back to its
original size before installing the plug into the cage.
For two-piece seal ring:
ALubricate the backup ring (Key 35) and seal ring
(Key 34) with silicone-based grease. Slide the
backup ring down over the plug and into the groove.
BCarefully slide the seal ring over the edge of the
plug and down into the groove. Allow time for the
seal ring to shrink back to its original size after
installation.
2Lubricate the valve plug / stem (Key 19) assembly with light
assembly grease and insert into the cage (Key 18).
NOTE
Ensure the seal ring (Key 34) does not shift out of
the plug groove when installing the plug into the
cage.
Bonnet Assembly
1Coat gasket sealing surface on bonnet with nickel based
anti-seize compound. Place bonnet (Key 1) over stem
(Key 17) and tighten bonnet nuts (Key 28) to specified
torque values. Follow standard torque sequence when
tightening bolts. Refer to Table 1 for specific torque values.
Packing Assembly
Refer to Figure 10 for packing orientation and
Key numbers for the following section. For live loaded
packing instructions refer to the P-LLPS manual.
1 Ensure all parts have been cleaned and inspected prior to
replacing packing. (See Disassembly section for inspection
procedures).
For single style (spring-loaded) packing:
A Lubricate the packing box ring (Key 13) and lower
wiper (Key 14) with silicone-based lubricant. Insert
both parts into the packing bore followed by spring
(Key 5) and special washer (Key 7).
BLubricate the packing set (Key 2) with silicone-based
lubricant and insert on top of the washer (Key 7) in
the packing bore.
CPlace the packing follower (Key 8) on top of the
packing set followed by the upper wiper (felt)
(Key 9) and packing flange (Key 10).
DTighten the packing nuts (Key 12) until the packing
follower comes into contact with the bonnet (Key 1).
For double style packing:
A Lubricate packing box ring (Key 13), lower wiper
(Key 14) and lower packing set (Key 2) with
silicone-based lubricant. Insert these parts into the
packing bore followed by the lantern ring (Key 6).
BLubricate the upper packing set (Key 2) and place it
into the packing bore followed by the packing
follower (Key 8).
CInsert the upper wiper (felt) (Key 9) and the packing
flange (Key 10) over the stem (Key 17) and tighten
the packing nuts (Key 12) to the proper torque value
as specified in Table 2.
For double style graphite packing:
A Refer to Figures 9 & 10 for single and double
packing arrangements. Choose proper arrangement
based on stem size and single or double
configurations. Install bonnet as described in the
Assembly section. Install packing box ring and
packing arrangement as shown. Note that Key 4 is
graphite filament wound material that typically looks
like rope. Key 3 is graphite ribbon compressed into
rings and not split as the graphite filament ring is.
Install packing follower (Key 8) and flange (Key 10)
and torque as per Table 3.
CAUTION
Graphite ribbon packing damages easily, care is to
be taken when installing it into the packing bore.

Model 360 Control Valve
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-360M0215A 11
Operation, Parts, and Instruction Manual
Table 1
Body to Bonnet Stud Torque
Valve Sizes (Inch)
Bolt Torques
B7M
B8M (annealed)
S17400 DH1150
B7
B8M (strain hardened)
N•m lbf-ft. N•m lbf-ft.
1 63-65 46-48 126-132 93-97
1-1/2, 1-1/2 x 1, 2, or 2 x 1 44-46 32-34 94-98 70-73
3, 3 x 2 86-90 63-66 166-172 123-128
4, 4 x 3 153-159 113-117 266-276 196-204
6 359-373 265-275 538-560 397-413
8 518-540 382-398 731-761 542-558
Table 2
Valve Stem Connection Assembly Torque and Pin Replacement
VSC Diameter
Inches (mm)
Torque
lbf-ft. (N•m)
Hole Size
Inches (mm)
3/8 (9.5) 25 - 35 (34 - 47) 0.095 - 00.97 (2.41 - 2.46)
1/2 (12.7) 60 - 85 (81 - 115) 0.126 - 0.128 (3.20 - 3.25)
3/4 (19.1) 175 - 250 (237 - 339) 0.189 - 0.192 (4.80 - 4.88)
1 (25.4) 310 - 355 (420 - 481) 0.251 - 0.254 (6.38 - 6.45)
1-1/4 (31.8) 610 - 670 (827 - 908) 0.251 - 0.254 (6.38 - 6.45)
Bolting Material and Designations
Stud Material Temperature Limitation
B7 (Standard) -50OF to 900OF (-46OC TO 482OC)
B7M (NACE 150-300 ASME Class) -50OF TO 900OF (-46OC TO 482OC)
B8M (Annealed) -325OF to 1500OF (-198OC to 816OC)
B8M (Strain Hardened) -325OF to 1500OF (-198OC to 816OC)
S17400 DH1150 (NACE 600 ASME Class) -50OF TO 650OF (-46OC TO 343OC)
Inconel 718
B7 FLUOROKOTE #1 -50OF to 500OF (-46OC TO 260OC)
B7M FLUOROKOTE #1 -50OF TO 500OF (-46OC TO 260OC)
S17400 FLUOROKOTE #1 -50OF TO 500OF (-46OC TO 260OC)

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 Control Valve
P-360M0215A 12
Operation, Parts, and Instruction Manual
Figure 9 Model 360 Control Valve PTFE Packing Diagrams
3/8” (9.5 mm) Stem
1/2” (12.7 mm) Stem
3/4” (19.1 mm) Stem
1” (25.4 mm) Stem
1-1/4” (31.8 mm) Stem
SINGLE STYLE
PTFE PACKING DOUBLE STYLE
PTFE PACKING
3/8” (9.5 mm) Stem
*NOTE: For 3/8” stems remove a
packing ring from the lower set for
a total of 4 rings.
1/2” (12.7 mm) Stem
3/4” (19.1 mm) Stem
1” (25.4 mm) Stem
1-1/4” (31.8 mm) Stem
DOUBLE STYLE
PTFE PACKING
10
9
8
2
7
5
13
14
10
9
8
2
6
2*
13 14
10
9
8
2
6
2
13 14

Model 360 Control Valve
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-360M0215A 13
Operation, Parts, and Instruction Manual
Figure 10 Model 360 Control Valve Single Style Graphite Packing Diagrams
10
8
8
8
10
10
6
6
6
6A
3/8” (9.5 mm) Stem 3/4” (19.1 mm) Stem
1” (25.4 mm) Stem
1-1/4” (31.8 mm) Stem
1/2” (12.7 mm) Stem
6
6
4
4
3
4
4
3
4
4
4
3
3
13 13 13
SINGLE STYLE
GRAPHITE PACKING
SINGLE STYLE
GRAPHITE PACKING
SINGLE STYLE
GRAPHITE PACKING

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 Control Valve
P-360M0215A 14
Operation, Parts, and Instruction Manual
Table 3
Packing Nut Torque Values
Valve Stem
Diamter
Inch (mm)
ASME
Class
PTFE Single and Double Type Packing Graphite Single and Double Type Packing
Min. Torque Max. Torque Min. Torque Max. Torque
lbf-in. N•m lbf-in. N•m lbf-in. N•m lbf-in. N•m
3/8 (9.5)
150 9 1172273445
300 172273354536
600 273354536718
1/2 (12.7)
150 172354445718
300 2734455878910
600 35 4 58 7 80 9 124 14
3/4 (19.1)
150 44 5 71 8 97 11 150 17
300 62 7 97 11 133 15 204 23
600 89 10 133 15 186 21 274 31
1 (25.4) 300 106 12 159 18 230 26 336 38
600 150 17 221 25 310 35 469 53
1-1/4 (31.8) 300 150 17 230 26 319 36 478 54
600 212 24 319 36 434 49 655 74
Figure 11 Model 360 Control Valve Seal Diagrams
ONE-PIECE SEAL RING
Spring-Loaded
Flow Down
(Cup Faces Down)
16 40
35
34
35
16
34
TWO-PIECE SEAL RING
16 40
35
34
ONE-PIECE SEAL RING
Spring-Loaded
Flow Up
(Cup Faces Up)

Model 360 Control Valve
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-360M0215A
18
22
15
25
1
24
DETAIL A
17
20
STEM/ VALVE PLUG/PIN DETAIL
DYNA-FLO MODEL 360 CONTROL VALVE
NACE PACKING ARRANGEMENT
35
DETAIL A
15
28
27
1
10
9
YOKE NUT
34
2
6
2
17
8
11
12
26
21
METAL SEAT
31
33
32
Soft (PTFE) Seat
34
35
26
18
15
Operation, Parts, and Instruction Manual
Figure 12 Model 360 Control Valve Cross Section

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 Control Valve
P-360M0215A 16
Operation, Parts, and Instruction Manual
Figure 13 Detail ‘A’ From
Figure 12 - 8 Inch Valve
with Load Ring
Figure 14 Detail ‘A’ From
Figure 12 with Restricted
Trim
22
36
1
15
18
16
15
26
21
17
1
39
37
21
41
35
34
23
25
24
18
16
26
26 38
15
21