Dyna-Flo 570 Parts list manual

Model 570, 571, 573 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-570M1217B 1
Operation, Parts, and Instruction Manual
TABLE OF CONTENTS
General 2 Assembly 12
Scope 2 Bearing Assembly 12
Specifications 3 Ball / Shaft 13
Flange Stud Measuring Method - Figure 2 3 Packing 13
Valve Assembly / Dimensions - Figure 3 4 Ball Seal 14
570 Valve Dimensions - Table 2 5 Actuator Mounting 14
Mounting Pad Dimensions - Table 4 5 Packing Ring Installation - Figure 4 14
571 / 573 Valve Dimensions - Tables 3 - 11 5 Mounting - Figures 5 / 6 15
570 Flange Stud Lengths - Table 8 6 Mounting Styles and Positions - Table 12 16
571 / 573 Flange Stud Lengths - Table 9 7 Follower Shaft Pin Diagram - Figure 7 16
Flange Stud Diameters - Table 10 7 Ball Seals - Figure 8 17
Flange Stud Quantity - Table 11 7 Ball / Pin Diagrams - Figure 9 18
Unpacking 8 Bearing Driver Tool - Figure 10 / Table 13 19
Installation 8 Bearing Diagram - Figure 11 20
Periodic Inspection 9 570 Cross Section - Figure 12 and 13 21
Packing Maintenance 9 571 / 573 Cross Section - Figure 14 22
Disassembly 9 Packing - Figure 15 23
Valve / Actuator 10 Drive Shaft Pin Installation 25
Packing Removal 10 Follower Shaft Pin Installation 26
Ball Seal Removal 10 Ball / Shaft Assembly 27
Ball / Shaft / Bearings 11 Parts 28
Bearing Removal 12 Model Builder 36

Dyna-Flo Control Valve Services Ltd.
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Model 570, 571, 573 Control Valve
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Operation, Parts, and Instruction Manual
NOTICE These instructions are meant to be used with the Dyna-Flo 570 Series 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 570 Series 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
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 570 Series 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.
Table 1
Available Valve Configurations
Valve Model End Connection Body Material Valve Size
inch Valve Rating
570
Flangeless
Mates with ASME Class
150/300/600
Raised Face Flanges
LCC
CG8M
1 / 1-1/2 / 2 ASME Class 150/300/600
3 & 4 ASME Class 150
ASME Class 300/600
6 & 8 ASME Class 150/300/600
571 Flanged
Mates with ASME Class 150
Raised Face Flanges LCC / WCC / CG8M 1 / 1-1/2 / 2 / 3 / 4 / 6 / 8 / 10 / 12 ASME Class 150
573 Flanged
Mates with ASME Class 300
Raised Face Flanges LCC / WCC / CG8M 1 / 1-1/2 / 2 / 3 / 4 / 6 / 8 / 10 / 12 ASME Class 300

Model 570, 571, 573 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
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Operation, Parts, and Instruction Manual
MEASURE FROM FIRST FULL THREAD TO
FIRST FULL THREAD
Figure 2
Flange Stud Measuring
Method
SPECIFICATIONS
Maximum Pressure / Temperature Ratings
Consistent with applicable pressure / temperature ratings per
ASME B16.34. Refer to Tables 16 & 17 of Sales Bulletin.
Maximum Allowable Shutoff Pressure Drop
Refer to Table 17 of Sales Bulletin.
750 Psig (5,171 kPag) @ 100oF (38oC) (Standard Construction)
Material Temperature Capabilities
Valve Body:
Standard: -50oF to 450oF (-46oC to 232oC) LCC
Optional: High Temp -20oF to 800oF (-29oC to 427oC) WCC
Packing:
PTFE: -50oF to 450oF (-46oC to 232oC)
Graphite: -325oF to 1000oF (-198oC to 538oC)
Live Loaded PTFE: -50oF to 450oF (-46oC to 232oC)
(for 100 ppm service requirements)
Live Loaded Graphite: 20oF to 600oF (-7oC to 316oC)
(for 100 ppm service requirements)
20oF to 700oF (-7oC to 371oC)
(for non-environmental service requirements)
Refer to Tables 16 & 17 of Sales Bulletin.
Construction Materials
Refer to Parts for construction materials.
Contact your Dyna-Flo sales office for more information and
other options.
Flow Direction
Forward (through seal into ball).
Actuator Mounting
Right-hand, or Left-hand (as viewed from seal end of valve).
In one of 4 positions (12 (Std.), 3, 6, and 9 o’clock) with
respect to the valve body in a horizontal pipe.
Maximum Ball Rotation
90 degrees.
Shutoff Classification
• Composition Ball Seal: Class VI
•Metal Ball Seal: Class IV
• Classes and testing per ANSI/FCI 70-2 and IEC 60534-4.
• Tested at the service pressure drop, or 50 Psig (345 kPag),
whichever is lower
Valve Dimensions
Refer to Figures 2 & 3 for valve diagram.
Refer to Tables 2 - 11 for valve dimensions.
Refer to Tables 8, 9, 10, & 11 for bolting dimensions.
Valve and Actuator Assembly Weight
Refer to Table 2 of Sales Bulletin.
Options
Line Flange Bolting - Tables 8, 9, 10, & 11.
Stainless Steel Construction.
Internal Coatings.
Shaft Connections:
- Splined (Standard)
- Square (Optional - 1” to 6” Valves)
- Keyed (Optional - 8” to 12” Valves)
For more information and other options contact your Dyna-Flo
sales office.

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Model 570, 571, 573 Control Valve
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Operation, Parts, and Instruction Manual
Figure 3 Typical Valve Assembly Diagram and Dimensions
A
MODEL 571 & 573
L
K
MODEL 570
I
MM
O
N
N
1 - 2” VALVE
3” to
12”
VALVES
J
S
SPLINED SHAFT
J
S
Q
Q
(SQUARE)
P
1” - 6” VALVES
SQUARE SHAFT
DETAIL
J
ST
U
W
8 - 12” VALVE KEYED SHAFT DETAIL
8 - 12” VALVE KEYED SHAFT DETAIL
Centering Studs
32 32 32

Model 570, 571, 573 Control Valve
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Table 3
Model 571 and 573 Valve Dimensions Inch (mm)
Valve / Actuator
Size
Dimensional Reference
A
1” / DFR026 4.00 (102)
1-1/2” / DFR026 4.50 (114)
2” / DFR026 4.88 (124)
3” / DFR047 6.50 (165)
4” / DFR070 7.62 (194)
6” / DFR156 9.00 (229)
8” / DFR156 9.56 (243)
8” / DFR220 9.56 (243)
10” / DFR220 11.69 (297)
12” / DFR220 13.31 (338)
ASME Class: 571 = 150, 573 = 300
•Envelope Dimensions are + / - 0.25 in. (6.4 mm)
•Face to Face Tolerance Per ASME
Table 2
Model 570 Valve Dimensions Inch (mm)
Valve / Actuator
Size
Dimensional Reference
A
1” / DFR026 4.00 (102)
1-1/2” / DFR026 4.50 (114)
2” / DFR026 4.88 (124)
3” / DFR047 6.50 (165)
4” / DFR070 7.62 (194)
6” / DFR156 9.00 (229)
8” / DFR156 9.56 (243)
8” / DFR220 9.56 (243)
ASME Class: 150 / 300 / 600
•Envelope Dimensions are + / - 0.25 in. (6.4 mm)
•Face to Face Tolerance Per ASME
Table 4
Valve Mounting Pad Dimensions Inch (mm) - Refer to Figure 3.
Valve Size
Inch Dimensional Reference
NMO
1 / 1-1/2 / 2 0.56 (14.2) 4.62 (117) —
3 / 4 / 6 0.56 (14.2) 6.00 (152) 1.25 (31.8)
8 / 10 / 12 0.69 (17.5) 9.25 (235) 1.81 (46.0)
Table 5
Model 570, 571, and 573 Square Shaft Dimensions Inch (mm) - Refer to Figure 3.
Valve Size
Inch Dimensional Reference
JSPQ
1 Consult Dyna-Flo Consult Dyna-Flo Consult Dyna-Flo Consult Dyna-Flo
1-1/2 Consult Dyna-Flo Consult Dyna-Flo Consult Dyna-Flo Consult Dyna-Flo
2 3.24 (82.3) 5/8 X 1/2
(15.9 X 12.7) 0.75 (19.1) 0.431 (11.0)
3 3.82 (97.0) 3/4 (19.1) 0.75 (19.1) 0.431 (11.0)
4 3.82 (97.0) 3/4 (19.1) 0.75 (19.1) 0.431 (11.0)
6 5.07 (128.8) 1 (25.4) 1.00 (25.4) 0.667 (16.9)

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Table 6
Model 570, 571, and 573 Splined Shaft Dimensions Inch (mm) - Refer to Figure 3.
Valve Size
Inch 570 571 573
JSJSJS
1 7.38 (188) 1/2 (12.7) 7.38 (188) 7.38 (188) 7.38 (188) 7.38 (188)
1-1/2 7.38 (188) 5/8 X 1/2
(15.9 X 12.7) 7.38 (188) 5/8 X 1/2 (15.9 X 12.7) 7.38 (188) 5/8 X 1/2 (15.9 X 12.7)
2 7.38 (188) 5/8 X 1/2
(15.9 X 12.7) 7.38 (188) 5/8 X 1/2 (15.9 X 12.7) 7.38 (188) 5/8 X 1/2 (15.9 X 12.7)
3 8.44 (214) 3/4 (19.1) 8.44 (214) 3/4 (19.1) 8.44 (214) 3/4 (19.1)
4 8.44 (214) 3/4 (19.1) 8.44 (214) 3/4 (19.1) 8.44 (214) 3/4 (19.1)
6 8.44 (214) 1 (25.4) 8.44 (214) 1 (25.4) 8.44 (214) 1 (25.4)
8 8.19 (208) 1-1/4 (31.8) 8.19 (208) 1-1/4 (31.8) 8.19 (208) 1-1/4 (31.8)
10 — — 8.19 (208) 1-1/4 (31.8) 8.19 (208) 1-1/4 (31.8)
12 — — 8.19 (208) 1-1/2 (38.1) 8.19 (208) 1-1/2 (38.1)
Table 7
Model 570, 571, and 573 Keyed Shaft Dimensions Inch (mm) - Refer to Figure 3.
Valve Size
Inch 570 571 & 573
JSUTWJSUTW
85.05
(128.3) 1-1/4 (31.8) 1.50 (38.1) 1-1/8 (28.6) 1.63 (41.4) 5.05 (128.3) 1-1/4 (31.8) 1.50 (38.1) 1-1/8 (28.6) 1.63 (41.4)
8” Valve Shafts use a 1/4” x 1.37” Key Stock.
10 —————
5.05
(128.3) 1-1/4 (31.8) 1.50 (38.1) 1-1/8 (28.6) 1.63 (41.4)
10” Valve Shafts use a 1/4” x 1.37” Key Stock.
12 —————
5.10
(129.5) 1-1/2 (38.1) 1.50 (38.1) 1-3/8 (34.9) 1.75 (44.5)
12” Valve Shafts use a 5/16” x 1.34” Key Stock.
Table 8
Model 570 Line Flange Stud Lengths Inch (mm) - Refer to Figures 2 & 3.
Valve Size
Inch
I
Class 150 Class 300 Class 600
1 6.94 (176) 7.94 (202) 7.94 (202)
1-1/2 7.44 (189) 8.81 (224) 8.81 (224)
2 8.31 (211) 9.31 (237) 9.31 (237)
3 10.00 (254) 11.25 (286) 11.25 (286)
4 11.25 (286) 13.50 (343) 13.50 (343)
6 13.50 (343) 14.25 (362) 16.25 (413)
8 13.50 (343) 15.25 (387) 16.75 (426)

Model 570, 571, 573 Control Valve
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Table 9
Model 571 and 573 Flange Stud Lengths Inch (mm) - Refer to Figures 2 & 3.
Valve Size
Inch 571 573
KLKL
1 2.88 (73) 3.12 (79) 3.69 (94) 3.94 (100)
1-1/2 3.12 (80) 3.62 (92) 4.25 (108) 4.50 (114)
2 3.44 (87) 3.94 (100) 3.94 (100) 4.19 (106)
3 3.94 (100) 4.19 (106) 4.75 (121) 5.25 (133)
4 3.94 (100) 4.69 (119) 5.00 (127) 5.50 (140)
6 4.50 (114) 5.00 (127) 5.50 (140) 6.00 (152)
8 5.00 (127) 5.25 (133) 6.00 (152) 6.50 (165)
10 5.25 (133) 5.75 (146) 6.81 (173) 7.31 (186)
12 5.25 (133) 6.00 (152) 7.31 (186) 7.81 (198)
Table 10
Flange Stud Diameters and Threads Per Inch (TPI)
Valve Size
Inch
TPI
Class 150 Class 300 Class 600
1 Consult Dyna-Flo Consult Dyna-Flo Consult Dyna-Flo
1-1/2 Consult Dyna-Flo Consult Dyna-Flo Consult Dyna-Flo
2 5/8” - 11 5/8” - 11 5/8” - 11
3 5/8” - 11 3/4” - 10 3/4” - 10
4 5/8” - 11 3/4” - 10 7/8” - 9
6 3/4” - 10 3/4” - 10 1” - 8
8 3/4” - 10 7/8” - 9 1-1/8” - 8
10 (571 & 573 ONLY) 7/8” - 9 1” - 8 N/A
12 (571 & 573 ONLY) 7/8” - 9 1-1/8” - 8 N/A
Table 11
Flange Stud Quantity
Valve Size
Inch
Number of Studs Required (Double for Models 571 & 573)
Class 150 Class 300 Class 600
1 / 1-1/2 / 2 / 3 4 8 8
4888
6 8 12 12
8 8 12 12
10 (571 & 573 ONLY) 12 16 N/A
12 (571 & 573 ONLY) 12 12 N/A

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UNPACKING VALVE FROM SHIPPING
CONTAINER
Check the packing list against materials received, while
unpacking the valve. The Packing List describes valve and
accessories in each shipping container.
When preparing valves and actuators for lifting, be sure to use
certified lifting equipment and proper rigging. Position any
lifting straps to avoid damage to the tubing and mounted
accessories.
INSTALLATION
WARNING
Refer to the General and Scope sections of this
Manual (See Page 2) prior to beginning Installation.
Before installing these valves, be sure to inspect the flange
mating surfaces on both the valve and the pipeline flanges.
Clean dirt, welding chips, scale or other foreign material from
the line and flange surfaces. Check the pipeline flanges for
alignment and look for signs of gasket leakage through the line
flanges, make repairs if necessary.
The Model 570 requires the use of long studs that span the
length of the valve and through both line flanges. The body
casting is designed to utilize the long studs to assist in
centering the valve in the line. Models 571 & 573 use shorter
studs to connect the valve flanges with the line flanges,
the studs do not center the valve in the pipeline.
CAUTION
Only well trained experienced technicians should
perform these procedures. Be sure to use safe work
practices and lockout procedures. Always be aware
of the hazards of spring-loaded actuators. Be sure
that they are in the failed (de-energized) 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 ball cannot rotate. Use safe work
practices and lock out procedures when isolating
valves and actuators. Always be aware of flammable
instrument gas.
1Install the valve with flow through the valve in the direction
as indicated by the arrow on the valve body (standard flow
direction has the seal protector ring (Key 10) facing
upstream). The valve assembly may be installed in any
position unless limited by vibration considerations, See
Figures 5 & 6. NOTE: Excessive wear to the valve may be
caused if the valve is installed with the drive shaft
(Key 16) in a vertical orientation.
WARNING
Keep hands, hair and clothing away from all moving
parts when operating the valve. Serious injury can
result from failure to do so.
Model 570 Installation
(Refer to Figures 2 and 3, and Tables 8, 10, and 11 for
flange stud (Key 32) dimensions)
1Coat the threads of two flange studs with anti-seize
lubricant and install them into the flanges before
placing the valve body. The two studs should be placed
appropriately to help center the bottom of the valve
body, See Figure 3.
2Set the appropriate line gaskets in place.
3Insert the valve into line centering the bottom of the
valve body between the two studs installed in Step 1.
Lubricate the remaining studs with anti-seize
compound and install them. Make sure the valve
is properly centered between the pipeline flanges and
then tighten the flange studs evenly in a criss-cross
pattern to the correct torque specifications.
Models 571 & 573 Installation
(Refer to Figures 2 and 3, and Tables 9, 10, and 11 for
flange stud (Key 32) dimensions)
NOTE
Longer flange studs are needed for the seal
protector ring (Key 10) side of the valve. DO NOT
use standard length studs for the seal protector
side of the valve, see Table 9.
1Lubricate the flange studs with anti-seize compound
and have them ready to hold the valve in line.
2Set the appropriate line gaskets in place.

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INSTALLATION (Continued)
Models 571 & 573 Installation (Continued)
3Insert the valve in line and make sure the valve is
properly centered between the pipeline flanges.
Tighten all the flange studs and nuts evenly in a criss-
cross pattern to the correct torque specifications.
Air Piping
Standard actuators are designed to accept a 1/4” (6 mm) NPT
connection. Use 3/8” OD tubing (or equivalent) for all air
lines. Always follow good piping practices when installing
piping or tubing, install all required line vents, valves,
drains, seals, and filters. For more information refer to the
appropriate actuator instruction manual for your product.
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 yoke of the actuator.
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 packing 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.
6Ensure all accessories, mounting brackets and fasteners
are secure.
7Clean any dirt and foreign material from the stem.
PACKING MAINTENANCE
If the packing is leaking, and tightening the packing flange
does not stop the leak, then it is recommended that you
remove the valve from the line. Refer to Valve Disassembly /
Packing Removal for maintenance instructions. For live loaded
packing, refer to the live loaded packing instructions for proper
adjustment procedures.
DISASSEMBLY
CAUTION
Only well trained experienced technicians should
perform these procedures. Be sure to use safe work
practices and lockout procedures. Always be aware
of the hazards of spring-loaded actuators. Be sure
that they are in the failed (de-energized) 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 ball cannot rotate.
1Isolate the valve from the process by completely
shutting off the process pressure or use bypass valves if
necessary. Drain the process fluid from upstream and
downstream of the valve.
2Disconnect any power supply media lines providing air /
gas pressure, electric power, or a control signal to the
actuator. Isolate and bleed off any instrument gas from
the actuator and instruments. Ensure the actuator cannot
suddenly operate the valve.
CAUTION
Use safe work practices and lock out procedures
when isolating valves and actuators! Always be
aware of flammable instrument gas!

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DISASSEMBLY (Continued)
3Secure the valve and actuator assembly and remove them
from the pipeline by removing the flange studs (Key 32).
Valve / Actuator Disassembly
1Replacing the ball seal can be accomplished without
removing the actuator. Place the valve assembly on a
flat work surface that can support the assembly
weight, the valve seal protector ring (Key 10) should
be facing up. Relieve any actuator spring preload and
refer to the appropriate actuator instruction manual
for actuator disassembly instructions.
2Take note of the ball position relative to the
actuator lever where the spline of the shaft goes
through. This will assure proper ball position during
reassembly. A digital camera works well for this. You
can remove the travel indicator arrow, (DFR 026 and
DFR 047) or the cover plate, (DFR 070, DFR 156 and
DFR 220) from the actuator and mark the shaft and
lever with a punch or take a digital picture showing
the ball position and the lever position. For Dyna-Flo
Model DFR 026 actuators there is no clamp on the
lever. For the DFR 047, DFR 070, DFR 156 and the DFR
220 you will have to remove the cover and loosen the
clamp on the lever.
3Remove the actuator mounting bolt (Key 30) and slide
the valve body assembly from the actuator. This may
require the use of a pry bar between the body and the
actuator mounting pad. The lever on the DFR 070, DFR
156 and DFR 220 will sometimes bind when trying to
remove the valve body assembly. A wedge driven into
the slot in the lever will help to loosen the clamp on
the lever. CAUTION: Using a hammer to drive the
actuator off of the valve shaft can seriously damage
the valve.
WARNING
To Avoid personal injury and property damage
use caution when separating the actuator from
the valve body, during removal the valve ball
may rotate in the body.
Packing Removal
For live loaded packing, refer to the Live Loaded Packing
instruction manual (P-LLPR) for assembly instructions.
1Remove the packing nuts (Key 27), note any corrosion
or roughness in the threads. Remove the packing
follower (Key 23) by sliding it over the drive shaft
(Key 16).
NOTE
Valve shaft packing (Key 22) may be removed
without removing the drive shaft (Key 16) from
the valve however it is easier to remove the
packing and inspect the valve shaft and packing
bore when the drive shaft is removed. Refer to
Ball / Shaft Removal for drive shaft disassembly
instructions.
2Using a mechanics pick set or wire hook, remove the
packing box parts (Keys 21 & 22) from the packing
bore. Be extremely cautious not to damage the drive
shaft or the packing bore while removing packing as
this will cause new packing to leak.
3Inspect all packing parts, drive shaft, and packing bore
for damage, polish or replace as necessary. Refer to
Assembly / Packing for packing assembly instructions.
Ball Seal Removal
NOTE
During seal removal, the valve actuator may
remain mounted to the valve body.
1Rotate the valve ball (Key 3) to the open position.
For PTFE Composition Ball Seals
ARemove the seal protector ring screws (Key 12 &
12A) and seal protector clips (Key 11 & 11A).
Carefully remove the seal protector ring (Key 10)
and gasket (Key 9).
BRemove the seal (Key 5) from the valve body.
For 1, 1-1/2, & 2 inch valves remove the back-up
ring (Key 4) as well.
CClean and inspect all seating, sealing, and gasket
surfaces for damage. If there is excessive wear
or damage to the seal ring, check the valve ball
(Key 3) for damage in corresponding areas. It is
also a good opportunity to inspect the flange
gasket surfaces for damage while the valve is
out of line.

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DISASSEMBLY (Continued)
Ball Seal Removal (Continued)
For Metal Ball Seals
ARemove the seal protector ring screws (Key 12 &
12A) and seal protector washers (Key 11A).
Carefully remove the seal protector ring (Key 10)
and gasket (Key 9). NOTE: Caution when
removing the seal protector ring the metal ball
seal can fall out and damage itself or the ball.
BCarefully remove the metal ball seal (Key 6) by
pushing it away from the flange gasket side of the
seal protector ring.
CRemove the wave spring (Key 8) and the radial
seal (Key 7) from the seal protector ring.
DClean and inspect all seating, sealing, and gasket
surfaces for damage. It is also a good
opportunity to inspect the flange gasket surfaces
for damage while the valve is out of line.
Ball / Shaft and Bearing Removal
CAUTION
If the bearings (Key 20) require removal special
tooling may be required. In most cases the bearings
can be removed with a standard punch, a standard
punch may also damage the bearings. If the bearings
are to be reused, see Figures 10 & 11 and Table 13
for drawings and information on bearing removal
tools that will not damage the bearings.
NOTE
Before the bearings can be removed from the valve
both the drive shaft (Key 16) and follower shaft
(Key 13) must be removed from the valve body
(Key 1). The ball seals must be removed prior to
removing the valve ball and valve shafts.
The follower shaft to ball connection uses a follower shaft pin
(Key 14) in a stepped hole and can only be installed and
removed in one direction. (See Figure 7)
For 3 through 12 inch valves the valve shaft / valve ball
connection is made using a shaft key (Key 18), see Figure 9.
The shaft / ball connection is factory set, but if the shaft or key
needs to be replaced or if the connection is loose it will need to
be reset. Refer to the Assembly instructions.
Always use caution and protect the flange gasket surfaces from
damage during disassembly.
For 1. 1-1/2, and 2 Inch Valves
1Mark the shaft to show the orientation of the ball
before beginning disassembly, this will help to
re-install the shaft properly on reassembly. It is
possible to install the valve shaft 180 degrees out of
alignment which will make it difficult to mount the
actuator.
2Rotate the ball to the ‘open’ position and locate the
smaller of the pin holes on the ball (see Figure 7).
To keep the ball and shaft in proper position it may
be necessary to support the ball using a wood or soft
block during disassembly. Using a 3/16” pin punch,
drive the shaft pin (Key 15) out of the ball / drive shaft
(Key 2) connection by driving the shaft pin out the
larger side of the pin hole.
3Using the same 3/16” pin punch, remove the follower
shaft pin (Key 14) from the valve ball / follower shaft
(Key 13) connection.
4Remove the pipe plug (Key 28) if present and drive the
follower shaft into the ball towards the drive shaft. If
the drive shaft cannot be pulled out by hand, continue
to drive the follower shaft into the drive shaft until it
loosens. Being careful not to allow the ball to drop,
pull the drive shaft from the valve body through the
actuator mounting end of the valve.
5Remove and inspect the valve ball for damage. Inspect
the valve shafts and valve body for damage as well.
For 3 through 12 Inch Valves
1Mark the shaft to show the orientation of the ball
before beginning disassembly, this will help to
re-install the shaft properly on reassembly. It is
possible to install the valve shaft 180 degrees out of
alignment which will make it difficult to mount the
actuator.
2Rotate the ball to the ‘open’ position and locate the
smaller end of the keyhole on the valve ball / drive
shaft (Key 16) connection. To keep the ball and shaft
in proper position it may be necessary to support the
ball using a wood or soft block during disassembly.

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Operation, Parts, and Instruction Manual
DISASSEMBLY (Continued)
Ball / Shaft and Bearing Removal (Continued)
For 3 through 12 Inch Valves (Continued)
3Using an appropriately sized pin punch, drive the shaft
key (Key 18) out of the ball / drive shaft connection by
driving through the smaller of the keyholes pushing
the key away. See Figure 9.
4Using the a 3/16” pin punch, remove the follower shaft
pin (Key 14) from the valve ball / follower shaft (Key
13) connection. Be sure to check the ball / follower
shaft connection for a stepped hole, always drive the
follower shaft pin from the smaller hole out the larger.
5Remove the pipe plug (Key 28) and drive the follower
shaft inward towards the drive shaft. If the drive
shaft cannot be pulled out by hand, continue to drive
the follower shaft into the drive shaft until it loosens.
Be very careful not to allow the ball to drop
especially with larger valves! Pull the drive shaft
from the valve body through the actuator mounting
end of the valve.
6Remove and inspect the valve ball for damage. Inspect
the valve shafts and valve body for damage as well.
Bearing Removal
NOTE
If the bearings (Key 20) need to be replaced, please
note that Dyna-Flo bearing configurations have
changed for 570 series control valves and new
replacement bearing kits will reflect this change.
Inboard and outboard bearings are only present for valve sizes
6” through 12” with S17400 bearing material. All other bearing
combinations and sizes utilize two identical bearings.
Thrust washers (Key 19) are only required for valves sizes 6”
through 12” with S17400 bearing material. All other bearing
combinations and sizes no longer require a thrust washer.
1Inspect the bearings, remove the bearings only if they
are damaged and require removal.
2Remove the bearings by hand. If the bearings are
unable to be removed by hand refer to Table 12 for
bearing removal tool dimensions and instructions.
CAUTION: If the bearings require removal special
tooling may be required. In most cases the bearings
can be removed with a standard punch, a standard
punch may also damage the bearings.
3Remove and replace the thrust washer (Key 19) if
required.
4Inspect internal surfaces for evidence of wear and
repair if required.
ASSEMBLY
Ensure that all parts have been thoroughly cleaned and
inspected as per disassembly section prior to assembly.
Replace damaged parts and always replace packing and
gaskets.
Bearing Assembly
NOTE
If the bearings (Key 20) need to be replaced, please
note that Dyna-Flo bearing configurations have
changed for 570 series control valves and new
replacement bearing kits will reflect this change.
Valve sizes 6, 8, 10, and 12 inch use specific inboard
and outboard bearings. Pay close attention when
ordering parts and assembling these sizes. All other
sizes use identical inboard /outboard bearings.
Thrust washers (Key 19) are only required for valves sizes 6”
through 12” with S17400 bearing material. All other bearing
combinations and sizes no longer require a thrust washer.
1See Figure 11 to determine placement of inboard and
outboard bearings if they are used. Install the bearings
appropriately by hand or by using the appropriate bearing
tool as indicated in Table 13. The flange of the bearing
should be in contact with the valve body.

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P-570M1217B 13
Operation, Parts, and Instruction Manual
ASSEMBLY (Continued)
Ball / Shaft Assembly
CAUTION
To avoid dropping and damaging the valve ball
(Key 3) when inserting the ball into the valve body
(Key 1) it may be necessary to support the ball
using a wood or soft block during assembly.
NOTE
For 3 through 12 inch valves the valve shaft / valve
ball connection is made using a flat key (Key 18)
and set screws (Key 17), see Figure 9. The shaft
/ ball connection is factory set, but if the shaft or key
needs to be replaced or if the connection is loose it
will need to be reset prior to assembly. See Page 27.
1For valve sizes 3 through 12, set the drive shaft to ball
connection prior to assembly. Refer to Page 27 for
instructions to set the shaft / ball connection.
2Carefully insert the valve ball into the valve body.
Insert the follower shaft (Key 13) through the valve
body and into the valve ball.
3Align the pin hole of the follower shaft with the follower
shaft pin hole on the valve ball. Insert the follower
shaft pin (Key 14) into the ball / follower shaft assembly.
4Install the drive shaft (Key 16) through the bearing
and into the valve ball. Set the valve shaft to the
original orientation as per Step 1 of Ball / Shaft and
Bearing Removal. Install the shaft key (Key 18) or
shaft pin (Key 15) for 1”, 1-1/2”, 2” valves, and refer
to Pages 25, 26, and 27 for shaft pin and shaft key
installation instructions.
5With the follower shaft pins and flat key installed
beneath the hole on the surface of the ball ear, stake
the pins and/or flat key on both the drive shaft and
follower shaft using a center punch. See Pages 25 - 27
for further instructions.
Packing Installation
1Ensure all parts have been cleaned and inspected prior
to replacing the packing. Refer to the Disassembly
section for inspection procedures. For Live Loaded
packing refer to the Live Loaded Packing instruction
manual for rotary valves (P-LLPR).
NOTE
To prevent trapping air when installing packing
rings it is recommended that packing rings be
installed one at a time. Do not force packing
rings below the chamfer of the packing bore
before adding another ring. See Figure 4.
2Install the packing parts as shown in Figure 15. For
PTFE packing, lubricate the packing with a silicone-
based lubricant.
3Install the packing follower (Key 23).
4Thread the packing nuts (Key 27) onto the packing
studs (Key 26) and tighten them in an alternating
pattern until the packing follower is secured. The
packing nuts should be tightened enough to stop
leakage under operating conditions.
Ball Seal Assembly
1Have all parts and seal surfaces cleaned and inspected
prior to assembly. Refer to Disassembly section for
inspection procedures.
2Rotate the ball (Key 3) to the closed position. Inspect
the position of the ball along the axis of the shaft
(Key 16). The ball should be no more than 0.005
inches (0.13 mm) off the center line. It may be
necessary to use a feeler gauge between the
clearance angles just below where the ball seal sits,
using a feeler gage the maximum difference would be
0.010 inches (0.254 mm). For 1, 1-1/2, & 2 inch
valves the back-up ring (Key 4) will need to be
installed to check the position of the ball. If the ball is
not centered it may be due to some wear on the ears
of the ball or the thrust face of the bearings, re-inspect
all surfaces for damage.
For PTFE Composition Ball Seals
AInstall the ball seal (Key 5), gasket (Key 9) and
seal protector ring (Key 10).
BInstall the seal protector clips (Key 11/11A) and
seal protector ring screws (Key 12/12A), tighten
them completely in an alternating pattern.

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Model 570, 571, 573 Control Valve
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Operation, Parts, and Instruction Manual
ASSEMBLY (Continued)
Ball Seal Assembly (Continued)
For Metal Ball Seals
ALubricate the radial seal (Key 7) with white
petroleum grease and install it into the groove in
the seal protector ring (Key 10).
BInstall the wave spring (Key 8) into the seal
protector ring.
CInsert the metal seal (Key 6) into the seal
protector ring, take extra care not to damage the
radial seal when inserting the metal seal. Try to
keep the metal seal ring from binding as you insert
it by keeping it even and parallel.
DInstall the gasket (Key 9), then install the metal
seal / protector ring assembly over the gasket.
EInstall the seal protector clips (Key 11) or washer
(Key 11A) and seal protector ring screws (Key 12)
or washer screws (Key 12A), tighten them
completely in an alternating pattern.
ACTUATOR MOUNTING
Refer to the appropriate actuator instruction manual for
additional mounting instructions. For mounting and fail position
orientations see Figures 5 & 6.
1Set the valve to the desired fail position.
2Clean the splines of the drive shaft and using the marks
made in Step 2 of Valve / Actuator Disassembly insert
the drive shaft (Key 16) into the actuator lever.
3Adjust the position of the valve, lever, and actuator so
that the lever is centered and the actuator shaft is
vertically parallel within the actuator housing. The lever
should be able to move within the housing freely and
unobstructed. Tighten the lever clamp to the drive shaft.
4Insert the actuator mounting bolt (Key 30) and bolt
the valve and actuator together using the actuator
mounting nuts (Key 31). Once the mounting bolts are
tight, the valve may need to be readjusted in order
to center the valve ball. Refer to the appropriate
actuator instruction manual for information on
adjusting the actuator turnbuckle to re-center
the ball.
5 Re-install the actuator cover plate and travel indicator
arrow.
top of packing ring
pushed down to be
even with bottom of
packing bore chamfe
r
top of packing ring
pushed down to be
even with bottom of
packing bore chamfer
installing first
packing ring
installing second
packing ring
Figure 4 Packing Ring Installation
16
23
1

Model 570, 571, 573 Control Valve
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P-570M1217B 15
Operation, Parts, and Instruction Manual
Left Hand Mount
Right Hand Mount
A
B
C
D
Figure 5 Mounting Orientation Diagram
Figure 6 Actuator/Valve Position Chart
2
3
4
CLOSE
CLOSE
CLOSE
CLOSE
2
3
4
CLOSE
CLOSE
CLOSE
CLOSE
ACTUATOR
(diagrams shown using DFR model actuators) VALVE OPEN
2
3
4
CLOSE
CLOSE
CLOSE
CLOSE
2
3
4
CLOSE
CLOSE
CLOSE
CLOSE
STYLE A
PUSH DOWN TO CLOSE
(PDTC)
STYLE B
PUSH DOWN TO OPEN
(PDTO)
STYLE C
PUSH DOWN TO CLOSE
(PDTC)
STYLE D
PUSH DOWN TO OPEN
(PDTO)
RIGHT-HAND MOUNTED ACTUATOR
LEFT-HAND MOUNTED ACTUATOR
ACTUATOR POSITIONS
ACTUATOR POSITIONS
ACTUATOR POSITIONS
ACTUATOR POSITIONS
FLOW
FLOW
FLOW
FLOW

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Model 570, 571, 573 Control Valve
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Operation, Parts, and Instruction Manual
FOLLOWER SHAFT
PIN ( )
Follower Shaft Pin Removal Diagram
FOLLOWER SHAFT ( )
BALL ( )
Drive the follower shaft
pin out of the ball/shaft
from the direction of the
smaller shaft pin hole.
Figure 7 Proper Follower Shaft Pin Removal Diagram
Key 3
Key 14
Key 13
Table 12
Mounting Styles and Positions
Mounting Action Position
(See Figure 5)
Right Hand Mount Fail Open Style A
Right Hand Mount Fail Close Style B
Left Hand Mount Fail Open Style C
Left Hand Mount Fail Close Style D

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P-570M1217B 17
Operation, Parts, and Instruction Manual
SEAL PROTECTOR
RING
GASKET
SEAL
VALVE BODY
BALL
SIZE 3 - 12 INCH
TCM BALL SEAL
SEAL PROTECTOR
RING
GASKET
VALVE BODY
METAL BALL
SEAL
WAVE SPRING
RADIAL SEAL
BALL
APPLY LUBRICANT*
SIZE 3 - 8 INCH
METAL BALL SEAL
SEAL PROTECTOR
RING
GASKET
BALL SEAL
VALVE BODY
BACKUP RING
BALL
1 - 2 INCH TCM BALL SEAL
& BACKUP RING
SEAL PROTECTOR
RING
GASKET
RADIAL SEAL
METAL BALL
SEAL
VALVE BODY
APPLY
LUBRICANT*
WAVE SPRING
BALL
1 - 2 INCH METAL BALL SEAL
* Lubricate with white petroleum grease.
SIZE 10 - 12 INCH
METAL BALL SEAL
METAL BALL
SEAL
BALL
WAVE SPRING
RADIAL SEAL
VALVE BODY
GASKET
SEAL PROTECTOR
RING
FLOW RING
GASKET
VALVE BODY
BALL
SIZE 1 - 12 INCH
TCM BALL SEAL
Figure 8 Ball Seal Assembly Diagrams for Valve Sizes 1 Through 12 Inch
(Key 10)
(Key 9)
(Key 5)
(Key 1)
(Key 4)
(Key 3)
(Key 10)
(Key 9)
(Key 1)
(Key 7)
(Key 8)
(Key 6) (Key 3)
(Key 1)
(Key 10)
(Key 9)
(Key 5)
(Key 3)
(Key 1)
(Key 10)
(Key 9) (Key 8)
(Key 7)
(Key 3)
(Key 6)
(Key 10)
(Key 9)
(Key 1)
(Key 8)
(Key 3)
(Key 7)
(Key 6)
(Key 10A) (Key 1)
(Key 9)
(Key 3)

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Model 570, 571, 573 Control Valve
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Operation, Parts, and Instruction Manual
Figure 9 Ball / Pin Assembly Diagrams for Valve Sizes 1 Through 12 Inch
1 THRU 2 INCH BALL/PIN ASSEMBLY 3 THRU 4 INCH BALL/PIN ASSEMBLY
6 THRU 12 INCH BALL/PIN ASSEMBLY
SET SCREW ( )
SHAFT KEY ( )
SHAFT KEY
( ) SET SCREW
( )
BALL ( )
BALL ( ) SHAFT PIN
( ) DRIVE SHAFT
( )
DRIVE ( )
SHAFT
SHAFT KEY ( )
BALL ( )
DRIVE SHAFT ( )
3 THRU 12 INCH BALL/PIN
ASSEMBLY (SIDE VIEW)
DRIVE ( )
SHAFT
Key 2
Key 2 Key 15
Key 3
Key 18
Key 16
Key 17
Key 18
Key 16
Key 3
Key 18
Key 17
Key 16

Model 570, 571, 573 Control Valve
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P-570M1217B 19
Operation, Parts, and Instruction Manual
AØ
BØ
C
D
0.015” Radius Max (or Under Cut)
Chamfer 0.015” all Corners
Table 13
Bearing Driver Construction Dimensions
Valve Size
(Inch) AØ Inch (mm) BØ Inch (mm) C Inch (mm) D Inch (mm)
10.490 (12.5) 0.675 (17.2) 0.750 (19.1) 1.500 (38.1)
1-1/2 0.620 (15.8) 0.800 (20.3) 0.750 (19.1) 1.500 (38.1)
20.620 (15.7) 0.740 (18.8) 0.750 (19.1) 1.500 (38.1)
30.740 (18.8) 0.900 (22.9) 0.750 (19.1) 1.500 (38.1)
40.740 (18.8) 0.900 (22.9) 0.750 (19.1) 1.500 (38.1)
60.990 (25.0) 1.130 (28.7) 1.000 (25.4) 2.000 (50.8)
81.240 (31.5) 1.485 (37.7) 1.000 (25.4) 2.000 (50.8)
Figure 10 Bearing Driver Diagram
* Note: for removal this driver will only work if the outboard bearing has a large enough pipe plug to allow access.

Dyna-Flo Control Valve Services Ltd.
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Model 570, 571, 573 Control Valve
P-570M1217B 20
Operation, Parts, and Instruction Manual
Figure 11 Old Style Inboard and Outboard Bearing Diagram
NOTE: DIFFERENTIATION BETWEEN THE INBOARD AND OUTBOARD BEARINGS
CAN BE PERFORMED THROUGH VISUAL INSPECTION. THE INBOARD BEARING HAS
A SMALLER RIDGE (SHOWN ABOVE) THAT ALLOWS FOR THE PRESSENCE OF THE
THRUST WASHER (KEY 18) BETWEEN THE INBOARD BEARING (KEY 19) AND THE BALL (KEY 3).
INBOARD BEARING
OUTBOARD BEARING
SMALLER BEARING RIDGE
LARGER BEARING RIDGE
THRUST WASHER
SHAFT KEY ( )
SETSCREW ( )
SHAFT ( )
INBOARD BEARING ( )
THRUST WASHER ( )
BALL ( )
FOLLOWER SHAFT ( )
FOLLOWER SHAFT PIN ( )
OUTBOARD BEARING ( )
VALVE BODY ( )
Key 20
Key 19
Key 16
Key 17
Key 18
Key 3
Key 13
Key 14
Key 20
Key 1