Emerson TARTARINI FL Series User manual

FL Series
Instruction Manual
Form 5733
D103068X012
March 2010
www.emersonprocess.com/regulators
Figure 1. Type FL Regulator with Type PRX Pilot
FL Series Pressure Reducing Regulators
!
WARNING
Failure to follow these instructions or
to properly install and maintain this
equipment could result in an explosion

personal injury or death.
Tartarini regulators must be installed,
operated, and maintained in accordance
with federal, state, and local codes, rules
and regulations, and Emerson Process
Management Regulator Technologies,
Inc. instructions.
If the regulator vents gas or a leak
develops in the system, service to the unit
may be required. Failure to correct trouble
could result in a hazardous condition.
Call a gas service person to service

install or service the regulator.
Introduction
Scope of the Manual
This manual provides instructions for installation,
adjustment, maintenance, and parts ordering
information for the FL Series regulators sold in
North America.
Description
The FL Series regulators are accurate pilot-operated,
pressure-balanced, soft-seated regulators designed
for high-pressure transmission/city gate, large
capacity distribution systems, and power plant feeds.
The FL Series provides smooth, quiet operation, tight
shutoff, and long life. The regulator utilizes a main
valve actuator, a Type PRX/120 pressure reducing
pilot, and a Type SA/2 pilot supply pressure regulator.
The Type PRX/120 pilot uses inlet pressure reduced
by a Type SA/2 supply pressure regulator, as loading
pressure to operate the main valve actuator. The
outlet pressure is sensed through a control line on
the main valve actuator and also on the Type PRX
pilot diaphragm.

The Specications section gives some general
specications for the FL Series regulators. The
nameplates give detailed information for a particular
regulator as it comes from the factory.
E0820

FL Series
2
1. The pressure/temperature limits in this Instruction Manual and any applicable standard or code limitation should not be exceeded.
2. When using a Type SA/2 pilot supply lter regulator, the differential pressure across the regulator must be at least 45 psid (3,1 bar d) for optimum regulator performance.
3. Types PRX and SA/2 Fluorocarbon (FKM) elastomer are limited to 0°F (-18°C).
4. At average ambient temperature.

Principle of Operation
The pilot-operated Type FL (Figure 2) uses inlet
pressure as the operating medium, which is reduced
through pilot operation to load the actuator diaphragm.
Outlet or downstream pressure opposes loading
pressure in the actuator and also opposes the pilot
control spring.
When outlet pressure drops below the setting of the
pilot control spring, pilot control spring force on the
pilot diaphragm opens the pilot valve plug, providing
additional loading pressure to the actuator diaphragm.
This diaphragm loading pressure opens the main valve
plug, supplying the required ow to the downstream

Type FL: Pilot-operated pressure reducing
regulator for medium to high outlet pressures
Body Sizes
Type FL: NPS 1, 2, 3, 4, 6, and 8
(DN 25, 50, 80, 100, 150, and 200)
Type FL with Type SRS Silencer
(Inlet x Outlet):
NPS 1 x 4, 2 x 6, 3 x 10, 4 x 10, and 6 x 12
(DN 25 x 100, 50 x 150, 80 x 250, 100 x 250, and
150 x 300)
Main Valve End Connection Style and
Pressure Ratings(1)
ASME CL300 RF: 740 psig (51,0) bar(4)
ASME CL600 RF: 1480 psig (102) bar(4)
system. Any excess loading pressure on the actuator
diaphragm escapes downstream through the exhaust
restriction in the pilot.
When the gas demand in the downstream system
has been satised, the outlet pressure increases.
The increased pressure is transmitted through the
downstream control line and acts on the pilot diaphragm.
This pressure exceeds the pilot spring setting and moves
the diaphragm, closing the orice. The loading pressure
acting on the main diaphragm bleeds to the downstream
system through the exhaust restriction in the pilot.
Maximum Inlet and Outlet (Casing) Pressure(1)
1480 psig (102 bar)(4)
Miminum Operating Differential Pressure(2)
Start Open: 7.3 psid (0,50 bar d)
Full Open: 14.5 psid (1,00 bar d)
Outlet Pressure Ranges
See Table 1
Pressure Registration
External
Temperature Capabilities(1)
-4° to 140°F (-20° to 60°C)(3)
Table 1. Outlet Pressure Ranges
TYPES OUTLET PRESSURE
RANGE, PSIG (bar) AC (ACCURACY CLASS)
PILOT CONTROL SPRING INFORMATION
Spring Color Part Number
PRX/120
PRX/125
14.5 to 26
23 to 44
41 to 80
73 to 123
(1,00 to 1,8)
(1,6 to 3,0)
(2,8 to 5,5)
(5,0 to 8,5)
2.5%
2.5%
2.5%
2.5%
Yellow
Green
Blue
Black
GD25524X012
GD25523X012
GD25518X012
GD25522X012
116 to 210
203 to 334
319 to 435
(8,0 to 14,5)
(14,0 to 23,0)
(22,0 to 30,0)
1%
1%
1%
Silver
Gold
Aluminum
GD25521X012
GD25520X012
GD25586X012
PRX/120-AP
PRX/125-AP 435 to 1160 (30,0 to 80,0) 1% Clear GD27379X012

FL Series
3
Adjustment
The adjustment of the regulator is performed by means
of the pilot adjusting screw, which varies the compression
of the control spring. Adjustment is performed while the
regulator is in operation with the aid of a test pressure
gauge of suitable range. The shut-off valve downstream
of the regulator must not be completely closed; it is
necessary that a small quantity of gas ows downstream
to allow the outlet side to vent down, when it is necessary
to lower the pressure.
Loosen the locknut and turn the adjusting screw slowly to
adjust outlet pressure. Use a pressure gauge to check
the outlet pressure until the desired pressure is reached.
Monitoring Systems
Monitoring regulation is overpressure protection
by containment, therefore, there is no relief valve
to vent to the atmosphere. When the working
regulator fails to control the pressure, a monitor
regulator installed in series, which has been sensing
the downstream and control pressure, goes into
operation to maintain the downstream pressure
at a slightly higher than normal pressure. During
an overpressure situation, monitoring keeps the
customer on line. Also, testing is relatively easy
and safe. To perform a periodic test on a monitoring
regulator, increase the outlet set pressure of the
working regulator and watch the outlet pressure to
determine if the monitoring regulator takes over at
the appropriate outlet pressure.
Wide-Open Monitoring Systems (Figure 3)
There are two types of wide-open monitoring
systems: upstream and downstream. The difference
between upstream and downstream monitoring is
that the functions of the regulators are reversed.
Systems can be changed from upstream to
downstream monitoring, and vice-versa, by simply
reversing the setpoints of the two regulators. The
decision to use either an upstream or downstream
monitoring system is largely a matter of personal
preference or company policy.
In normal operation of a wide-open conguration,
the working regulator controls the system’s outlet
TYPE FL
Figure 2. Type FL Single Pilot Operational Schematic
E0827
TYPE PRX/120
TYPE SA/2
INLET PRESSURE
OUTLET PRESSURE
LOADING PRESSURE
PILOT SUPPLY PRESSURE
ATMOSPHERIC PRESSURE
TYPE SA/2:
V - SENSING PORT
R - PILOT SUPPLY PORT
M - INLET PORT
TYPE PRX/120:
S - BLEED PORT
B - SUPPLY PORT
L - LOADING PORT
A - SENSING PORT
V
R
M
S
L
B
A

FL Series
4
BB
SS
AA
LL
B
S
A
L
B S
A
L
B
S
A
L
B
S
A
L
SINGLE PILOT SYSTEM INSTALLATION
TYPE PRX/120 OR
PRX/120-AP
TYPE SA/2
A
TYPE PRX/120 OR
PRX/120-AP
TYPE PRX/120 OR
PRX/120-AP
TYPE SA/2
A
UPSTEAM OR DOWNSTREAM WIDE-OPEN MONITORING SYSTEM INSTALLATION
E0825
TYPE PRX/120 OR
PRX/120-AP
TYPE SA/2
TYPE SA/2
TYPE PRX/120 OR
PRX/120-AP
TYPE PRX/125 OR
PRX/125-AP
A
WORKING MONITORING SYSTEM INSTALLATION
Figure 3. Installation Drawings
B
A
L
S
B
LS
A
B
A
LS
B
A
LS
B
A
LS
B
A
LS
4 x A
6 x A
4 x A
6 x A
4 x A
6 x A
V
R
M
V
R
M
V
R
M
V
R
M

FL Series
5
pressure. With a higher outlet pressure setting,
the monitor regulator senses a pressure lower than
its setpoint and tries to increase outlet pressure by
going wide-open. If the working regulator fails, the
monitoring regulator assumes control and holds the
outlet pressure at its outlet pressure setting.
Working Monitoring Regulators (Figure 3)
In a working monitoring system, the upstream
regulator requires two pilots and it is always the
monitoring regulator. The additional pilot permits
the monitoring regulator to act as a series regulator
to control an intermediate pressure during normal
operation. In this way, both units are always operating
and can be easily checked for proper operation.
In normal operation, the working regulator controls
the outlet pressure of the system. The monitoring
regulator’s working pilot controls the intermediate
pressure and the monitoring pilot senses the system’s
outlet pressure. If the working regulator fails, the
monitoring pilot will sense the increase in outlet
pressure and take control.
Note
The working regulator must be
rated for the maximum allowable
operating pressure of the system
because this will be its inlet pressure
if the monitoring regulator fails.
Also, the outlet pressure rating of
the monitoring pilot, and any other
components that are exposed to the
intermediate pressure must be rated
for full inlet pressure.
Working monitor installations require a Type FL main
valve with a Type PRX/120 or PRX/120-AP working
pilot and a Type PRX/125 or PRX/125-AP monitoring
pilot for the upstream regulator and a Type FL with the
appropriate Type PRX/120 or PRX/120-AP pilot for the
downstream regulator.
Installation
!
WARNING
Personal injury or equipment damage,
due to bursting of pressure-containing
parts may result if this regulator is
overpressured or is installed where
service conditions could exceed the

and on the appropriate nameplate,
or where conditions exceed any
rating of the adjacent piping or piping
connections. To avoid such injury or
damage, provide pressure-relieving or
pressure-limiting devices to prevent
service conditions from exceeding those
limits. Also, be sure the installation is
in compliance with all applicable codes
and regulations.
Additionally, physical damage to the
regulator could break the pilot off the
main valve, causing personal injury
and property damage due to bursting
of pressure-containing parts. To avoid
such injury and damage, install the
regulator in a safe location.
All Installations
A Type FL regulator bleeds no gas to atmosphere
during normal operation, thus making the regulator
suitable for installation in pits and other enclosed
locations without elaborate venting systems. This
regulator also can be installed in pits subject to
ooding by venting the pilot spring case above the
expected ood level so that the pilot setting can be
referenced to atmospheric pressure.
1. Only personnel qualied through training and
experience should install, operate, and maintain
a regulator. Before installation, make sure that
there is no damage to, or debris in the regulator.
Also, make sure that all tubing and piping are
clean and unobstructed.
2. Install the regulator so that the ow arrow on
the main valve matches the ow direction of
process uid through the regulator.
3. Apply pipe compound to the external pipeline
threads before installing a regulator with threaded
NPT end connections. Use gaskets between
pipeline and regulator anges when installing a
regulator with anged end connections. When
installing butt weld end connections, remove trim
before welding and make sure to use approved
welding practices. Use approved piping
procedures when installing the regulator.
!
WARNING
A regulator may vent some gas to
the atmosphere. In hazardous or


FL Series
6
may accumulate, causing personal
injury, death, or property damage
due to bursting of pressure-retaining
parts. Vent a regulator in hazardous
gas service to a remote, safe location
away from air intakes or any hazardous
location. The vent line or stack opening
must be protected against condensation
or clogging.
4. Type PRX pilots have a 1/4 NPT vent
connection in the spring case. To remotely
vent gas from the spring case, remove the
screened vent, and connect 1/4-inch (6,4 mm)
piping or tubing to the spring case connection.
The piping or tubing should vent to a safe location,
have as few elbows as possible, and have a
screened vent on its exhaust. Install the regulator
and any remote vent piping or tubing so that the
vent is protected from condensation, freezing, or
substances that may clog it.
CAUTION
To avoid freeze up because of pressure
drop and moisture in the gas, use anti-
freeze practices, such as heating the
supply gas or adding a de-icing agent to
the supply gas.
5. The Type PRX pilot connections are
1/4 NPT. Connect a downstream control (sense)
line to a straight run of pipe 6 to 10 pipe
diameters from the regulator outlet as shown in
Figure 3, using 3/8-inch (9,5 mm) or larger
outside diameter tubing. If such a distance is not
practical, connect the control line away from
elbows, swages, nipples, or any area where
abnormal ow velocities occur. Connect the other
end of the control line to the “A” port on the bottom
of the Type PRX pilot.
6. The Type PRX pilot connections are 1/4 NPT.
Connect a downstream bleed line from the “S”
port on the Type PRX pilot to a straight run of pipe
6 to 10 pipe diameters from the regulator outlet as
shown in Figure 3, using 3/8-inch (9,5 mm) or
larger outside diameter tubing.
CAUTION
To prevent damage to the pilot during
startup, the sense and bleed lines
should be located on the same side of
the downstream block valve.
7. Install hand valves in the downstream sense
and bleed lines if desired. If hand valves are
installed, they should be full ow valves, such as
a full port ball valve.
8. For optional remote pneumatic loading of a
Type PRX pilot, make the spring case piping
connections just as they would be made for
remote venting.
Wide-Open Monitor Regulator
1. Follow the procedures in the All Installations
section, and then continue with step 2 of
this section. The sense and bleed control lines
of both the upstream and downstream pilots will
be connected to the downstream piping (see
Figure 3).
2. Connect the pilot supply line for the downstream
regulator to the outlet “R” port of the Type SA/2
pilot supply lter regulator (both upstream and
downstream pilots are connected to a single
Type SA/2).
Working Monitor Regulator
1. Follow the procedure in the All Installations
section, and then continue with step 2 of this
section. The sense line of the upstream monitor
pilot and the bleed and sense lines of the
downstream pilot will be connected to the
downstream piping (see Figure 3).
2. Connect an inlet supply line from the upstream
piping to the inlet “M” port of the downstream
Type SA/2 pilot supply lter regulator.
3. Connect a control (sense) line from the “A” port of
the upstream working Type PRX pilot to the
intermediate pressure portion of piping, using
3/8-inch (9,5 mm) or larger outside diameter tubing.
4. Connect a downstream bleed line from the “S”
port of the upstream working Type PRX pilot to the
intermediate pressure portion of piping, using
3/8-inch (9,5 mm) or larger outside diameter tubing.
Startup and Adjustment
Prestartup Considerations
Each regulator is factory-set for the outlet pressure
specied on the order. If no setting was specied,
outlet pressure was factory-set at the mid-range of
the pilot control spring. Before beginning the startup
procedure in this section, make sure the following
conditions are in effect:

FL Series
7
• Block valves isolate the regulator
• Vent valves are closed
• A bypass, if any, is in operation
In all cases, check the control spring setting to make
sure it is correct for the application.
CAUTION
Be sure to slowly introduce pressure
into the system to prevent downstream
overpressure due to potential rapid
pressure increase. Pressure gauges
should always be used to monitor
downstream pressure during startup.
Procedures used in putting this
regulator into operation must be planned
accordingly if the downstream system is
pressurized by another regulator or by a
manual bypass.
Note
When using a Type SA/2 pilot supply

across the regulator must be at least
45 psid (3,1 bar d) for optimum regulator
performance. The Type SA/2 can be
removed if differential pressure across
the regulator is less than 45 psid
(3,1 bar d) and inlet pressure stays at
or below 200 psig (13,8 bar).
Startup
1. Make sure all block valves, vent valves, and
control line valve(s) are closed.
2. Back out the pilot adjusting screw(s).
3. Slowly open the valves in the following order:
a. Pilot supply and control line valve(s), if used.
b. Inlet block valves.
4. Crack open the outlet block valve or bypass valve
to allow minimum ow.
5. For a single regulator, set the pilot to the
desired outlet (control) pressure according to the
Pilot Adjustment procedure.
For a wide-open downstream monitor installation,
adjust the upstream working pilot until intermediate
pressure is higher than the desired setpoint of the
monitor pilot. Adjust the downstream monitoring pilot to
the desired monitoring takeover pressure. Reduce the
upstream pilot to the normal outlet pressure setting.
For a wide-open upstream monitor installation,
adjust the downstream working pilot to a setpoint
higher than the setpoint of the monitor pilot. Adjust
the upstream monitoring pilot to the desired monitoring
takeover pressure. Reduce the downstream pilot to
the normal outlet pressure setting.
For a working monitor installation, adjust the
setpoint of the upstream monitor pilot to the desired
maximum pressure. Adjust the upstream working pilot
to the desired intermediate pressure setting. Adjust
the downstream pilot to a pressure setting slightly
above the upstream monitor pilot pressure setting.
Adjust the upstream monitor pilot to its desired
setpoint. Establish nal desired downstream pressure
by adjusting the downstream working regulator pilot.
6. After adjusting the Type PRX pilot(s) to the desired
pressure setting(s), slowly open the downstream
block valve wide-open.
7. Close the bypass valve, if used.
Pilot Adjustment
For PRX Series pilots (Figure 8), loosen locknut
(key 2) and turn the adjusting screw into the spring
case to increase (or out of the spring case to
decrease) the downstream pressure. When the
required downstream pressure is maintained for
several minutes, tighten the locknut to lock the
adjusting screw in position.
Type PRX Pilot Restrictor and Damper
Screw Adjustment
Note
Recommended initial setting of the
restrictor screw is turned completely in
(clockwise) and then turned out 1/2 turn.
The damper screw initial setting is turned
completely out (counterclockwise).
Note
The Type PRX/125 (upstream monitor
pilot in working monitor installations)
does not have a restrictor screw.
The Restrictor and Damper screws on the PRX Series
pilot control the regulator’s proportional band (droop)
and speed of response. For additional tuning follow
the steps outlined below:
1. Start with the restrictor screw 1 turn
counterclockwise from fully seated (turn restrictor

FL Series
8
fully clockwise then 1 turn counterclockwise) and the
damper screw fully counterclockwise.
2. Turn damper screw clockwise until desired
performance is achieved. This reduces the ow path
of the damper. If the damper becomes fully seated
(no longer able to turn clockwise) and the desired
performance has not been achieved, return the
damper screw to the fully counterclockwise position.
3. Turn the restrictor screw an additional turn
counterclockwise from fully seated. This increases
the ow path of the restrictor. If additional tuning is
required, repeat step 2. Follow this method until
desired performance is achieved.
Shutdown
CAUTION
If the pilot bleed control line pressure is

may be subjected to full inlet pressure.
1. If the pilot setting must be disturbed, be sure to keep
some tension on the spring. This will prevent
trapping inlet pressure during blow down.
2. Slowly close the valves in the following order:
a. Inlet block valve
b. Outlet block valve
c. Control line valve(s), if used.
3. Open the vent valves to depressurize the system.
Maintenance
The regulator parts are subject to normal wear
and must be inspected periodically and replaced
as necessary. The frequency of inspection and
replacement depends on the severity of service
conditions and on applicable federal, state and local
codes and regulations.
!
WARNING
To avoid personal injury or property
damage from sudden release of pressure,
isolate the regulator from the pressure
system, and release all pressure from the
pilot and main valve before performing
maintenance operations.
Main Valve (Refer to Figure 4)
Main Valve Pad/Disk Replacement
1. Remove outlet ange (key 22) by removing socket
head cap screws (key 5).
2. Remove pad/disk holder assembly and O-ring
(key 18).
3. Remove pad/disk (key 20) from pad/disk holder
(key 19) by removing cap screw (key 25) and
pad/disk retainer (key 21), replace pad/disk
if necessary.
4. Reinstall the pad.
5. Reassemble in reverse order. Refer to Table 2
for torque values. Tighten all bolts using a star
pattern and repeat 2 to 3 times to ensure
proper torque.
Main Valve Diaphragm Maintenance
1. Place main valve with inlet side up.
2. Remove the travel indicator assembly by
removing the indicator cover (key 40) and
indicator bushing (key 38). Check O-ring
(key 37), replace if necessary. Remove the
indicator support (key 36). Check O-ring
(key 35), replace if necessary. Lift out indicator
stem assembly (keys 33 and 34).
3. Remove inlet ange (key 1) by removing socket
head cap screws (key 5). Due to force created
by the spring (key 6), take care when removing
inlet ange.
4. Lift out spring (key 6). Remove hex head cap
screws, washers, and nuts (keys 9, 14, and 15).
Lift off the inlet cover (key 11).
5. Remove diaphragm assembly by removing screws
(key 27) to separate the outlet and the inlet plates
(keys 12 and 8). Check diaphragm (key 10) and
O-rings (keys 26 and 28) for damage and replace
if necessary. Check sleeve (key 16) seating
surface for damage. Check O-rings (keys 3
and 4) and anti-friction rings (key 2), replace
if necessary.
6. Reassemble in reverse order. Refer to Table 2
for torque values. Tighten all bolts using a star
pattern and repeat 2 to 3 times to ensure
proper torque.

FL Series
9
Figure 4. Outlet Flange Spacer Installation
BODY SIZE, NPS (DN)
m)
Flange Bolt (key 9) Socket Head Screw (key 5 / 64) Socket Head Screw (key 25) Socket Head Screw (key 27)
1(25) 51.6 (70) 14.7 (20) 8.11 (11) 4.42 (6,0)
2(50) 73.6 (100) 22.1 (30) 36.9 (50) 5.16 (7,0)
3(80) 258 (350) 59.0 (80) 66.4 (90) 5.16 (7,0)
4 (100) 516 (700) 73.8 (100) 66.4 (90) 11.8 (16)
6(150) 295 (400) 51.6 (70) 147 (199) 20.0 (27)
8(200) 295 (400) 51.6 (70) 147 (199) 14.7 (20)
Table 2. Maximum Torque Values
OUTLET FLANGE
(KEY 22)
SOCKET HEAD SCREW
(KEY 5 OUTLET SIDE)
O-RING
(KEY 4 OR 18 DEPENDING ON SIZE)
PAD-HOLDER
(KEY 19)
SPACER DETAILS FOR
NPS 6 TO 12 (DN 150 TO 300)
SPACER DETAILS
FOR SIZES SMALLER THAN
NPS 6 (DN 150)

FL Series
10
PRX Series Pilot Maintenance
CAUTION
Always remove spring (key 7) tension
before performing maintenance on this
unit. To remove spring tension, loosen
locknut (key 2) and back out adjusting
screw (key 1) until compression is
removed from the spring.
Note
Apply an anti-seize compound to the
adjusting screw threads and other areas
as needed.
Lower Case Maintenance
1. Remove pressure from the pilot.
2. Remove screws (key 10) from lower cover
(key 21) and the separate lower cover from the
body (key 16).
3. Use a wrench to hold the stem (key 23) and break
loose the stem nut (key 20). Remove the stem nut
and washer (key 11).
4. Remove the diaphragm plate (key 13),
diaphragm (key 14), pad holder (key 22), and
O-ring (key 18). Inspect the parts for damage
or wear, and replace if necessary.
5. Remove orice (key 19) and O-ring (key 17).
Inspect the parts for damage or wear, and replace
if necessary. Lightly lubricate the O-ring and
place in the body (key 16). Install the orice.
6. Set the pad holder (key 22) in the body (key 16).
7. Lightly lubricate the rims of the diaphragm (key 14)
and place it on top of the pad holder (key 22). Set
the diaphragm plate (key 13) on the diaphragm
(key 14).
8. Lightly lubricate the O-ring (key 18) and place it in
the lower case (key 21).
9. Place the washer (key 11) and stem nut
(key 20) on the stem (key 23) and tighten. If also
performing Upper Case Maintenance, skip to
step 2 of the Upper Case Maintenance section.
10. Insert machine screws (key 10) in the lower
cover (key 21) and tighten uniformly to ensure
proper seal.
Upper Case Maintenance
1. Remove pressure from the pilot.
2. Loosen locknut (key 2) and back out adjusting
screw (key 1) until compression is removed
from the spring. Remove cap (key 3).
3. Lift the spring carrier (key 6), spring (key 7),
and O-ring (key 4) out of the upper cover (key 8).
Inspect O-ring and replace if necessary.
4. Remove machine screws (key 10) from lower
cover (key 21) and the separate lower cover
from the body (key 16), unless removed during
lower diaphragm maintenance. Use a wrench
to hold stem (key 23) securely while removing
the stem nut (key 26).
5. Remove remaining loose components:
washer, upper diaphragm plate, diaphragm,
lower diaphragm plate, and O-rings
(keys 11, 13, 14, 15, 18, and 25). Inspect
diaphragm and O-rings for damage or wear,
and replace if necessary.
6. Lightly lubricate the O-ring (key 25). Place O-ring
over the stem (key 23) and press it down into the
body (key 16).
7. Set the lower diaphragm plate (key 15) into the
body (key 16).
8. Lightly lubricate the rims of the diaphragm
(key 14) and place it in the body (key 16) on top of
the lower diaphragm plate (key 15).
9. Set the upper diaphragm plate (key 13) on top of
the diaphragm (key 14).
10. Place washer (key 11) and stem nut (key 26)
on the stem (key 23) and tighten using a wrench
to hold the stem.
11. Set the spring carrier (key 6).
Damper and Restrictor Maintenance
1. Remove screw (key 31) and plate (key 29).
2. Remove ring nuts (key 30).
3. Remove damper adjusting screw (key 27).
Remove and inspect O-ring (key 28) for damage
or wear, and replace if necessary. Lightly
lubricate O-ring before placing on the adjusting
screw. Insert damper adjusting screw into the
body (key 16) and tighten. Insert ring nut
(key 30) and tighten. Back out damper adjusting
screw until it stops.

FL Series
11
4. Remove restrictor adjusting screw (key 32).
Remove and inspect O-ring (key 28)
for damage or wear, and replace if necessary.
Lightly lubricate O-ring before placing on the
adjusting screw. Insert restrictor adjusting screw
into the body (key 16) and completely tighten.
Insert ring nut (key 30) and completely tighten.
Back out restrictor adjusting screw 1/2 turn.
Note
When using a Type PRX/120 pilot with a
Type PRX/125 pilot as a monitor, use the
following settings:
   
then back out three full turns.
  
5. Install plate (key 29) and screw (key 31).
Type SA/2
Note
The ports marked H in the top view of
Figure 9 are optional heating ports.
1. Remove pressure from the Type SA/2.
2. Remove bolts, washers, and nuts (keys 2, 9,
and 10) from body (key 7) and the separate
upper and lower covers (keys 11 and 19) from
the body (key 7). When separating the covers
from the body, be aware of loose components:
(keys 1, 3, 4, 8, 12, 18, 20, and 21).
3. Remove and inspect O-ring (key 13) for damage
or wear, and replace if necessary. Lightly lubricate
the O-ring before placing it back in the cover
(key 11).
4. Clean screens (key 8). Replace lter pad (key 12).
5. Inspect diaphragm (key 18) for damage or wear,
and replace if necessary. Check the seating
surface of the orice in the screw unit (key 17)
for erosion, scratches, spurs, or other damage,
and replace if necessary.
6. Unscrew and remove the seat (key 5). Inspect
O-ring (key 6) for damage or wear, and replace if
necessary. Lightly lubricate the O-ring and place
it on the seat (key 5).
7. Pull the pad holder unit (key 15) out of the body
(key 7). Inspect the seat for damage, and
replace if necessary.
8. Set the pad holder unit (key 15) on the spring
(key 14) and insert the seat (key 5). Tighten the
seat (key 5) until it stops.
9. Lightly lubricate the outer and inner rims of
the diaphragm (key 18). Place the diaphragm
assembly on top of the seat (key 5). The screw
unit (key 17) will slide into the seat (key 5).
Use care to avoid damage to parts
when reassembling.
10. Set the spring (key 1) on top of the nut (key 21).
11. Align the cover (key 19) over the body (key 7)
with the sensing port (V) opposite the pilot supply
port (R).
12. Place the lter pad (key 12) and screens
(key 8), one on each side of the lter pad, on
the inlet cover (key 11).
13. Pick up the body (key 7) and place it on the
inlet cover (key 11) with the inlet port (M)
aligned vertically with the sensing port (V).
14. Insert bolts (key 2). Place washers (key 9) and
nuts (key 10) on the end of the bolts. Tighten
the nuts.
Parts Ordering
Each regulator is assigned a serial number, which
can be found on the nameplate. Refer to the number
when contacting your local Sales Ofce for technical
information or when ordering parts.
When ordering replacement parts, reference the key
number of each needed part as found in the following
parts list. Separate kit containing all recommended
spare parts is available.

FL Series
12
Key Description Part Number
7 Tube Fitting - - - - - - - - - - -
8 Inlet Plate
NPS 1 (DN 25) M0194440X12
NPS 2 (DN 50) M0194620X12
NPS 3 (DN 80) M0192080X12
NPS 4 (DN 100) M0194740X12
NPS 6 (DN 150) M0302910X12
NPS 8 (DN 200) M0302950X12
9 Flange Bolt
NPS 1 (DN 25) (16 required) M5007026X12
NPS 2 (DN 50) (16 required) M5007045X12
NPS 3 (DN 80) (16 required) M5007077X12
NPS 4 (DN 100) (16 required) M5007100X12
NPS 6 (DN 150) (24 required) M5007141X12
NPS 8 (DN 200) (30 required) M5007193X12
10* Diaphragm, PVC Coated Nitrile (NBR)
NPS 1 (DN 25) GD19445X012
NPS 2 (DN 50) GD19463X012
NPS 3 (DN 80) GD19209X012
NPS 4 (DN 100) M0194750X12
NPS 6 (DN 150) M0238490X12
NPS 8 (DN 200) M0296620X12
11 Inlet Body Cover
NPS 1 (DN 25) M0268640X12
NPS 2 (DN 50) M0268680X12
NPS 3 (DN 80) M0268720X12
NPS 4 (DN 100) M0268740X12
NPS 6 (DN 150) M0302930X12
NPS 8 (DN 200) M0302970X12
12 Outlet Plate
NPS 1 (DN 25) M0194480X12
NPS 2 (DN 50) M0194660X12
NPS 3 (DN 80) M0192120X12
NPS 4 (DN 100) M0194780X12
NPS 6 (DN 150) M0302920X12
NPS 8 (DN 200) M0302960X12
13 Outlet Body Cover
NPS 1 (DN 25) M0268650X12
NPS 2 (DN 50) M0268690X12
NPS 3 (DN 80) M0268730X12
NPS 4 (DN 100) M0268750X12
NPS 6 (DN 150) M0302940X12
NPS 8 (DN 200) M0302980X12
14 Washer
NPS 1 (DN 25) (16 required) M5001007X12
NPS 2 (DN 50) (16 required) M5001009X12
NPS 3 (DN 80) (16 required) M5001012X12
NPS 4 (DN 100) (16 required) M5001015X12
NPS 6 (DN 150) (24 required) M5001015X12
NPS 8 (DN 200) (30 required) M5001015X12
15 Nut
NPS 1 (DN 25) (16 required) M5002007X12
NPS 2 (DN 50) (16 required) M5002009X12
NPS 3 (DN 80) (16 required) M5002012X12
NPS 4 (DN 100) (16 required) M5002014X12
NPS 6 (DN 150) (24 required) M5002014X12
NPS 8 (DN 200) (30 required) M5002014X12
16 Sleeve
NPS 1 (DN 25) M0247720X12
NPS 2 (DN 50) M0230761X12
NPS 3 (DN 80) M0230621X12
NPS 4 (DN 100) M0230631X12
NPS 6 (DN 150) M0238340X12
NPS 8 (DN 200) M0296700X12
17 Tube Fitting - - - - - - - - - - -
18* O-Ring
Nitrile (NBR)
NPS 1 to 4 (DN 25 to 100) See Key 4
NPS 6 (DN 150) M6010083X12
NPS 8 (DN 200) M6010087X12
Parts List
Type FL Main Valve (Figure 5)
Key Description Part Number
Parts kit ( includes Key number: 2, 3, 4, 10, 18, 20, 26, 28, 35, 37,
46, 47. Key 46 is only used for Type SR/SRS. Not all parts are
used for all sizes.) See Table 4
Repair kit (includes key numbers 4,18 20, 46, and 47. Key 46 is
only used for Type SR/SRS. Not all parts are used for
all sizes.) See Table 3
1 Inlet Flange
CL300 RF
NPS 1 (DN 25) M0268280X12
NPS 2 (DN 50) M0268410X12
NPS 3 (DN 80) M0268520X12
NPS 4 (DN 100) M0268580X12
NPS 6 (DN 150) M0298170X12
NPS 8 (DN 200) M0298330X12
CL600 RF
NPS 1 (DN 25) M0268260X12
NPS 2 (DN 50) M0268430X12
NPS 3 (DN 80) M0268540X12
NPS 4 (DN 100) M0268600X12
NPS 6 (DN 150) M0298160X12
NPS 8 (DN 200) M0296890X12
2* Anti-Friction Ring, Polytetrauoroethylene (PTFE)
NPS 1 (DN 25) (6 required) M0194530X12
NPS 2 (DN 50) (6 required) M0194690X12
NPS 3 (DN 80) (6 required) M0192170X12
NPS 4 (DN 100) (6 required) M0194830X12
NPS 6 (DN 150) (6 required) M0207640X12
NPS 8 (DN 200) (6 required) M0296300X12
3* O-Ring, Fluorocarbon (FKM)
NPS 1 (DN 25) (3 required) M6020019X12
NPS 2 (DN 50) (3 required) M6020029X12
NPS 3 (DN 80) (3 required) M6020036X12
NPS 4 (DN 100) (3 required) M6020044X12
NPS 6 (DN 150) (3 required) M6020050X12
NPS 8 (DN 200) (3 required) M6020053X12
4* Body O-Ring
Nitrile (NBR)
NPS 1 (DN 25) (2 required) M6010108X12
NPS 2 (DN 50) (2 required) M6010119X12
NPS 3 (DN 80) (2 required) M6010195X12
NPS 4 (DN 100) (2 required) M6010157X12
NPS 6 (DN 150) M6010084X12
NPS 8 (DN 200) M6010084X12
Fluorocarbon (FKM)
NPS 1 (DN 25) (2 required) M6020084X12
NPS 2 (DN 50) (2 required) M6020101X12
NPS 3 (DN 80) (2 required) M6020128X12
NPS 4 (DN 100) (2 required) M6020090X12
NPS 6 (DN 150) M6020072X12
NPS 8 (DN 200) M6020072X12
5 Socket Head Screw
NPS 1 (DN 25) (16 required) M5011044X12
NPS 2 (DN 50) (16 required) M5011062X12
NPS 3 (DN 80) (16 required) M5011086X12
NPS 4 (DN 100) (16 required) M5011094X12
NPS 6 (DN 150) (16 required) M5011115X12
NPS 8 (DN 200) (24 required) M5011115X12
6 Spring
NPS 1 (DN 25) M0194590X12
NPS 2 (DN 50) M0191440X12
NPS 3 (DN 80) M0192240X12
NPS 4 (DN 100) M0194880X12
NPS 6 (DN 150) M0249030X12
NPS 8 (DN 200) M0296460X12
*Recommended Spare Parts.

FL Series
13
Key Description Part Number
18* O-Ring (continued)
Fluorocarbon (FKM)
NPS 6 (DN 150) M6020122X12
NPS 8 (DN 200) M6020167X12
19 Disk Holder
Type FL
NPS 1 (DN 25) M0250720X12
NPS 2 (DN 50) M0242810X12
NPS 3 (DN 80) M0251580X12
NPS 4 (DN 100) M0251640X12
NPS 6 (DN 150) M0250550X12
NPS 8 (DN 200) M0296660X12
Type FL/SR or FL/SR/SRS
NPS 1 (DN 25) M0274770X12
NPS 2 (DN 50) M0274750X12
NPS 3 (DN 80) M0269210X12
NPS 4 (DN 100) M0274320X12
NPS 6 (DN 150) M0274780X12
NPS 8 (DN 200) - - - - - - - - - - -
20* Disk
Nitrile (NBR)
NPS 1 (DN 25) M0250770X12
NPS 2 (DN 50) M0242820X12
NPS 3 (DN 80) M0251650X12
NPS 4 (DN 100) M0251600X12
NPS 6 (DN 150) M0250560X12
NPS 8 (DN 200) M0296690X12
Fluorocarbon (FKM)
NPS 1 (DN 25) M0276650X12
NPS 2 (DN 50) M0276670X12
NPS 3 (DN 80) M0276690X12
NPS 4 (DN 100) M0276700X12
NPS 6 (DN 150) M0276710X12
NPS 8 (DN 200) M0298670X12
21 Disk Retainer
Type FL
NPS 1 (DN 25) M0194520X12
NPS 2 (DN 50) M0230750X12
NPS 3 (DN 80) M0230591X12
NPS 4 (DN 100) M0230601X12
NPS 6 (DN 150) M0238350X12
NPS 8 (DN 200) M0296670X12
Type FL/SR or FL/SR/SRS
NPS 1 (DN 25) M0264370X12
NPS 2 (DN 50) M0264390X12
NPS 3 (DN 80) M0269090X12
NPS 4 (DN 100) M0264400X12
NPS 6 (DN 150) M0264410X12
NPS 8 (DN 200) - - - - - - - - - - -
22 Outlet Flange
Type FL or FL/SR only
CL300 RF
NPS 1 (DN 25) M0268290X12
NPS 2 (DN 50) M0268420X12
NPS 3 (DN 80) M0268530X12
NPS 4 (DN 100) M0268590X12
NPS 6 (DN 150) M0298190X12
NPS 8 (DN 200) M0298310X12
CL600 RF
NPS 1 (DN 25) M0268270X12
NPS 2 (DN 50) M0268440X12
NPS 3 (DN 80) M0268550X12
NPS 4 (DN 100) M0268610X12
NPS 6 (DN 150) M0298180X12
NPS 8 (DN 200) M0296880X12
Key Description Part Number
22 Outlet Flange (continued)
Type FL/SR/SRS
CL300 RF
NPS 1 x 4 (DN 25 x 100) M2006489X12
NPS 2 x 6 (DN 50 x 150) M2006493X12
NPS 3 x 10 (DN 80 x 250) M2006497X12
NPS 4 x 10 (DN 100 x 250) M2006499X12
NPS 6 x 12 (DN 150 x 300) M2007260X12
CL600 RF
NPS 1 x 4 (DN 25 x 100) M2006490X12
NPS 2 x 6 (DN 50 x 150) M2006494X12
NPS 3 x 10 (DN 80 x 250) M2006498X12
NPS 4 x 10 (DN 100 x 250) M2006500X12
NPS 6 x 12 (DN 150 x 300) M2007261X12
23 Gasket
Type FL or FL/SR only
NPS 1 (DN 25) M0136180X12
NPS 2 (DN 50) M0136210X12
NPS 3 (DN 80) M0136230X12
NPS 4 (DN 100) M0136250X12
NPS 6 (DN 150) M0136270X12
NPS 8 (DN 200) M0136280X12
Type FL/SR/SRS
NPS 1 x 4 (DN 25 x 100) M0136250X12
NPS 2 x 6 (DN 50 x 150) M0136270X12
NPS 3 x 10 (DN 80 x 250) M0136290X12
NPS 4 x 10 (DN 100 x 250) M0136290X12
NPS 6 x 12 (DN 150 x 300) M0136300X12
24 Spacer
Type FL or FL/SR only
CL300 RF
NPS 1 (DN 25) M0267180X12
NPS 2 (DN 50) M0208080X12
NPS 3 (DN 80) M0208090X12
NPS 4 (DN 100) M0208100X12
NPS 6 (DN 150) M2007602X12
NPS 8 (DN 200) M2007604X12
CL600 RF
NPS 1 (DN 25) M0267210X12
NPS 2 (DN 50) M0267230X12
NPS 3 (DN 80) M0267250X12
NPS 4 (DN 100) M0267260X12
NPS 6 (DN 150) M2007603X12
NPS 8 (DN 200) M2007605X12
Type FL/SR/SRS
CL300 RF
NPS 1 x 4 (DN 25 x 100) M0208100X12
NPS 2 x 6 (DN 50 x 150) M2007602X12
NPS 3 x 10 (DN 80 x 250) M2007606X12
NPS 4 x 10 (DN 100 x 250) M2007606X12
NPS 6 x 12 (DN 150 x 300) M0299740X12
CL600 RF
NPS 1 x 4 (DN 25 x 100) M0267260X12
NPS 2 x 6 (DN 50 x 150) M2007603X12
NPS 3 x 10 (DN 80 x 250) M2007607X12
NPS 4 x 10 (DN 100 x 250) M2007607X12
NPS 6 x 12 (DN 150 x 300) M0299750X12
25 Socket Head Screw
Type FL
NPS 1 (DN 25) M5011015X12
NPS 2 (DN 50) M5011044X12
*Recommended Spare Parts.

FL Series
14
Key Description Part Number
25 Socket Head Screw
Type FL (continued)
NPS 3 (DN 80) M5011061X12
NPS 4 (DN 100) M5011139X12
NPS 6 (DN 150) M5011103X12
NPS 8 (DN 200) M5011105X12
Type FL/SR or FL/SR/SRS
NPS 1 (DN 25) M5009010X12
NPS 2 (DN 50) M5009028X12
NPS 3 (DN 80) M5009037X12
NPS 4 (DN 100) M5009080X12
NPS 6 (DN 150) M5009095X12
NPS 8 (DN 200) - - - - - - - - - - -
26* O-Ring
Nitrile (NBR)
NPS 1 (DN 25) M6010029X12
NPS 2 (DN 50) M6010105X12
NPS 3 (DN 80) M6010115X12
NPS 4 (DN 100) M6010121X12
NPS 6 (DN 150) M6010226X12
NPS 8 (DN 200) M6010140X12
Fluorocarbon (FKM)
NPS 1 (DN 25) M6020021X12
NPS 2 (DN 50) M6020095X12
NPS 3 (DN 80) M6020073X12
NPS 4 (DN 100) M6020098X12
NPS 6 (DN 150) M6020116X12
NPS 8 (DN 200) M6020117X12
27 Socket Head Screw
NPS 1 (DN 25) (6 required) M5011005X12
NPS 2 (DN 50) (6 required) M5011014X12
NPS 3 (DN 80) (12 required) M5011140X12
NPS 4 (DN 100) (12 required) M5011125X12
NPS 6 (DN 150) (8 required) M5011043X12
NPS 8 (DN 200) (16 required) M5011125X12
28* O-Ring
Nitrile (NBR)
NPS 1 (DN 25) M6010104X12
NPS 2 (DN 50) M6010116X12
NPS 3 (DN 80) M6010126X12
NPS 4 (DN 100) M6010132X12
NPS 6 (DN 150) M6010140X12
NPS 8 (DN 200) M6010212X12
Fluorocarbon (FKM)
NPS 1 (DN 25) M6020120X12
NPS 2 (DN 50) M6020096X12
NPS 3 (DN 80) M6020127X12
NPS 4 (DN 100) M6020097X12
NPS 6 (DN 150) M6020117X12
NPS 8 (DN 200) M6020168X12
29 Nameplate - - - - - - - - - - -
30 Nameplate Sticker - - - - - - - - - - -
31 Drive Screw (4 required)
NPS 1 (DN 25) GD50002X012
NPS 2 (DN 50) GD50002X012
NPS 3 (DN 80) GD50002X012
NPS 4 (DN 100) GD50002X012
NPS 6 (DN 150) GD50002X012
NPS 8 (DN 200) 1A368228982
32 Flow Arrow GD20909X012
33 Spring Collet
NPS 1 (DN 25) GD19218X012
NPS 2 (DN 50) GD19218X012
NPS 3 (DN 80) GD19218X012
NPS 4 (DN 100) GD19218X012
NPS 6 (DN 150) GD19218X012
NPS 8 (DN 200) M0296750X12
Key Description Part Number
34 Indicator Stem
NPS 1 (DN 25) M0194560X12
NPS 2 (DN 50) M0269410X12
NPS 3 (DN 80) M0238270X12
NPS 4 (DN 100) M0269430X12
NPS 6 (DN 150) M0245830X12
NPS 8 (DN 200) M0290220X12
35* O-Ring
Nitrile (NBR)
NPS 1 to 4 (DN 25 to 100) M6010010X12
NPS 6 and 8 (DN 150 and 200) M6010012X12
Fluorocarbon (FKM)
NPS 1 to 4 (DN 25 to 100) M6020004X12
NPS 6 and 8 (DN 150 and 200) M6020005X12
36 Indicator Support
NPS 1 (DN 25) M0194570X12
NPS 2 (DN 50) M0194570X12
NPS 3 (DN 80) M0269400X12
NPS 4 (DN 100) M0269400X12
NPS 6 (DN 150) M0194990X12
NPS 8 (DN 200) M0299220X12
37* O-ring, Fluorocarbon (FKM) M6020066X12
38 Indicator Bushing M0194550X12
39 Indicator Label GD20199X012
40 Indicator Cover
NPS 1 (DN 25) M0194580X12
NPS 2 (DN 50) M0194710X12
NPS 3 (DN 80) GD19222X012
NPS 4 (DN 100) M0194870X12
NPS 6 (DN 150) M0210910X12
NPS 8 (DN 200) M0210910X12
43 Type SR Silencer
Type FL/SR or FL/SR/SRS
NPS 1 (DN 25) M0258950X12
NPS 2 (DN 50) M0258930X12
NPS 3 (DN 80) M0258390X12
NPS 4 (DN 100) M0258900X12
NPS 6 (DN 150) M0258990X12
NPS 8 (DN 200) - - - - - - - - - - -
46* O-Ring
Type FL/SR or FL/SR/SRS, Nitrile (NBR)
NPS 1 (DN 25) M6010014X12
NPS 2 (DN 50) M6010026X12
NPS 3 (DN 80) M6010193X12
NPS 4 (DN 100) M6010108X12
NPS 6 (DN 150) M6010052X12
NPS 8 (DN 200) - - - - - - - - - - -
Type FL/SR or FL/SR/SRS, Fluorocarbon (FKM)
NPS 1 (DN 25) M6020007X12
NPS 2 (DN 50) M6020019X12
NPS 3 (DN 80) M6020131X12
NPS 4 (DN 100) M6020084X12
NPS 6 (DN 150) M6020041X12
NPS 8 (DN 200) - - - - - - - - - - -
47* O-Ring
Nitrile (NBR)
NPS 1 (DN 25) - - - - - - - - - - -
NPS 2 (DN 50) - - - - - - - - - - -
NPS 3 (DN 80) M6010102X12
NPS 4 (DN 100) M6010113X12
NPS 6 (DN 150) M6010123X12
NPS 8 (DN 200) M6010136X12
Fluorocarbon (FKM)
NPS 1 (DN 25) - - - - - - - - - - -
NPS 2 (DN 50) - - - - - - - - - - -
NPS 3 (DN 80) M6020082X12
NPS 4 (DN 100) M6020124X12
NPS 6 (DN 150) M6020123X12
NPS 8 (DN 200) M6020166X12
*Recommended Spare Parts.

FL Series
15
Key Description Part Number
48 Washer
Type FL/SR or FL/SR/SRS
NPS 1 (DN 25) M5055001X12
NPS 2 (DN 50) M5055003X12
NPS 3 (DN 80) M5055004X12
NPS 4 (DN 100) M5055005X12
NPS 6 (DN 150) M5055006X12
NPS 8 (DN 200) - - - - - - - - - - -
59 Eyebolt
NPS 6 (DN 150) (2 required) M5040008X12
NPS 8 (DN 200) (2 required) M5040007X12
61 Pin (NPS 6 (DN 150) only) (8 required) M0249050X12
62 Screw (NPS 8 (DN 200) only) (6 required) M5007160X12
63 Washer (NPS 8 (DN 200) only) (6 required) M5077001X12
64 Socket Head Screw
NPS 6 (DN 150) (16 required) M5011150X12
NPS 8 (DN 200) (20 required) M5011117X12
65 Spring Washer (NPS 8 (DN 200) only) M4501106X12
Type SRS Main Valve (Figure 6)
Key Description Part Number
200 Body
CL300 RF
NPS 1 (DN 25) M0272850X12
NPS 2 (DN 50) M0273070X12
NPS 3 (DN 80) M0273290X12
NPS 4 (DN 100) M0273420X12
NPS 6 (DN 150) M0298210X12
NPS 8 (DN 200) - - - - - - - - - - -
CL600 RF
NPS 1 (DN 25) M0272860X12
NPS 2 (DN 50) M0273080X12
NPS 3 (DN 80) M0273300X12
NPS 4 (DN 100) M0273430X12
NPS 6 (DN 150) M0298240X12
NPS 8 (DN 200) - - - - - - - - - - -
201 Retainer
NPS 1 (DN 25) M0272870X12
NPS 2 (DN 50) M0273090X12
NPS 3 (DN 80) M0273310X12
NPS 4 (DN 100) M0273440X12
NPS 6 (DN 150) M0273550X12
NPS 8 (DN 200) - - - - - - - - - - -
Key Description Part Number
202 Stud
NPS 1 (DN 25) M5002004X12
NPS 2 (DN 50) M5002006X12
NPS 3 (DN 80) M5002007X12
NPS 4 (DN 100) M5002007X12
NPS 6 (DN 150) M5002007X12
NPS 8 (DN 200) - - - - - - - - - - -
203 Atenuator Plate
NPS 1 (DN 25) M0272880X12
NPS 2 (DN 50) M0273100X12
NPS 3 (DN 80) M0290400X12
NPS 4 (DN 100) M0282670X12
NPS 6 (DN 150) M0286300X12
NPS 8 (DN 200) - - - - - - - - - - -
204 Spring Pin
NPS 1 (DN 25) (2 required) M4501106X12
NPS 2 (DN 50) (2 required) M4501106X12
NPS 3 (DN 80) (2 required) M4501106X12
NPS 4 (DN 100) M4501106X12
NPS 6 (DN 150) - - - - - - - - - - -
NPS 8 (DN 200) - - - - - - - - - - -
205 Ring
CL300 RF
NPS 1 (DN 25) M0272890X12
NPS 2 (DN 50) M0273000X12
NPS 3 (DN 80) M0273330X12
NPS 4 (DN 100) M0273330X12
NPS 6 (DN 150) - - - - - - - - - - -
NPS 8 (DN 200) - - - - - - - - - - -
CL600 RF
NPS 1 (DN 25) M0272900X12
NPS 2 (DN 50) M0273010X12
NPS 3 (DN 80) M0273340X12
NPS 4 (DN 100) M0273340X12
NPS 6 (DN 150) - - - - - - - - - - -
NPS 8 (DN 200) - - - - - - - - - - -
206 Nut (3 required)
NPS 1 (DN 25) M5006014X12
NPS 2 (DN 50) M5006002X12
NPS 3 (DN 80) M5006003X12
NPS 4 (DN 100) M5006003X12
NPS 6 (DN 150) M5006003X12
NPS 8 (DN 200) - - - - - - - - - - -
Table 3. FL Series Start-Up Repair Kit Part Numbers
DESCRIPTION MATERIAL NPS 1 (DN 25) NPS 2 (DN 50) NPS 3 (DN 80) NPS 4 (DN 100) NPS 6 (DN 150) NPS 8 (DN 200)
FL Nitrile (NBR) M2600305X12 M2600309X12 M2600584X12 M2600586X12 M2600588X12 M2600948X12
FL/SR or FL/SR/SRS M2600750X12 M2600754X12 M2600758X12 M2600762X12 M2600766X12 NA
FL Fluorocarbon (FKM) M2600306X12 M2600581X12 M2600585X12 M2600587X12 M2600589X12 M2600988X12
FL/SR or FL/SR/SRS M2600751X12 M2600755X12 M2600759X12 M2600763X12 M2600767X12 NA
DESCRIPTION MATERIAL NPS 1 (DN 25) NPS 2 (DN 50) NPS 3 (DN 80) NPS 4 (DN 100) NPS 6 (DN150) NPS 8 (DN200)
FL Nitrile (NBR) GD89984X012 GD89985X012 GD89986X012 GD89987X012 GD89988X012 M2200948X12
FL/SR or FL/SR/SRS GD89973X012 GD89972X012 GD89971X012 GD89970X012 GD89969X012 NA
FL Fluorocarbon (FKM) GD89984X022 GD89985X022 GD89986X022 GD89987X022 GD89988X022 M2200988X12
FL/SR or FL/SR/SRS GD89973X022 GD89972X022 GD89971X022 GD89970X022 GD89969X022 NA
Table 4. FL Series Parts Kit Part Numbers
Table 5. FL Series Travel Indicator Assemblies Part Numbers
DESCRIPTION MATERIAL NPS 1 (DN 25) NPS 2 (DN 50) NPS 3 (DN 80) NPS 4 (DN 100) NPS 6 (DN 150) NPS 8 (DN 200)
FL, FL/SR, or FL/SR/SRS Fluorocarbon (FKM) M2007104X12 M2007117X12 M2007137X12 M2007598X12 M2007599X12 M2007600X12

FL Series
16
Key Description Part Number
207 Atenuator Plate
NPS 1 (DN 25) M0272910X12
NPS 2 (DN 50) M0273130X12
NPS 3 (DN 80) M0273350X12
NPS 4 (DN 100) M0273480X12
NPS 6 (DN 150) M0273570X12
NPS 8 (DN 200) - - - - - - - - - - -
208 Atenuator Plate
NPS 1 (DN 25) M0272920X12
NPS 2 (DN 50) M0273140X12
NPS 3 (DN 80) M0273360X12
NPS 4 (DN 100) M0273490X12
NPS 6 (DN 150) M0273580X12
NPS 8 (DN 200) - - - - - - - - - - -
209 Spacer
NPS 1 (DN 25) M0272930X12
NPS 2 (DN 50) M0273150X12
NPS 3 (DN 80) M0273370X12
NPS 4 (DN 100) M0273500X12
NPS 6 (DN 150) M0273590X12
NPS 8 (DN 200) - - - - - - - - - - -
210 Spring Cage
NPS 1 (DN 25) M0272940X12
NPS 2 (DN 50) M0273160X12
NPS 3 (DN 80) M0273380X12
NPS 4 (DN 100) M0273510X12
NPS 6 (DN 150) M0273600X12
NPS 8 (DN 200) - - - - - - - - - - -
211 Spring
NPS 1 (DN 25) (50 required) M0273680X12
NPS 2 (DN 50) (50 required) M0273680X12
NPS 3 (DN 80) (600 required) M0273680X12
NPS 4 (DN 100) (3250 required) M0273680X12
NPS 6 (DN 150) (3250 required) M0273680X12
NPS 8 (DN 200) - - - - - - - - - - -
PRX Series Pilots (Figure 8)
Key Description Part Number
Parts Kits
Elastomer Parts Kits (includes keys: 4, 5, 14, 17,
18, 25, and 28)
Types PRX/120 and PRX/125
Nitrile (NBR) RPRX00X0N12
Fluorocarbon (FKM) RPRX00X0F12
Types PRX/120-AP and PRX/125-AP
Nitrile (NBR) RPRXAPX0N12
Fluorocarbon (FKM) RPRXAPX0F12
1 Adjusting Screw GD25334X012
2 Locknut GD03600X012
3 Cap GD25335X012
4* Upper Cover O-ring See Parts Kits
5* O-ring See Parts Kits
6 Spring Carrier Plate GD25336X012
7 Spring See Table 1
8 Upper Cover GD29854X012
9 Spring Carrier Plate GD25338X012
10 Machine Screw M5011018X12
11 Washer GD05500X012
12 Filter GD50036X012
13 Diaphragm Plate GD25339X012
14* Diaphragm See Parts Kits
15 Diaphragm Plate GD25341X012
16 Body GD25331X012
17* Orice O-ring See Parts Kits
18* Lower Cover O-ring See Parts Kits
19 Orice GD25344X012
20 Nut GD00200X012
Key Description Part Number
21 Lower Cover GD29860X012
22* Pad Holder
Nitrile (NBR) GD25340X012
Fluorocarbon (FKM) M0279950X12
23 Stem GD25343X012
24 Nameplate GD26808X012
25* Stem O-ring See Parts Kits
26 Upper Diaphragm Nut GD02800X012
27 Damper Adjusting Screw with Hole GD25348X012
28* Restrictor/Damper O-ring See Parts Kits
29 Damper/Restrictor Plate
Types PRX/120 and PRX/120-AP GD25440X012
Types PRX/125 and PRX/125-AP GD25793X012
30 Ring Nut GD25349X012
31 Nameplate Screw GD06100X012
32 Restrictor Adjusting Screw with Hole GD25348X012
33 Plug (Types PRX/125 and PRX/125-AP Only) GD25792X012
34 Plug (Types PRX/125 and PRX/125-AP Only) GD50032X012
35 Spring Barrel Extension for AP GD27410X012
Mounting Parts (Figure 7)
Standard Congurations for Single Pilot
Key Description Part Number
50 Mounting Bracket - - - - - - - - - - -
51 Lifting Bracket - - - - - - - - - - -
52 Pipe Nipple (4 required) - - - - - - - - - - -
53 Tube Elbow (2 required) - - - - - - - - - - -
54 Male Tube Connector (4 required) - - - - - - - - - - -
55 Pipe Cross - - - - - - - - - - -
56 Tubing - - - - - - - - - - -
57 Female 45° Pipe Elbow (2 required) - - - - - - - - - - -
Type SA/2 Pilot Supply Filter Regulator
(Figure 9)
Key Description Part Number
Parts Kits
Elastomer Parts Kits (includes keys: 6, 12, 13,
15, and 18)
Nitrile (NBR) GD89995X012
Fluorocarbon (FKM) GD89995X022
1 Spring M0192560X12
2 Socket Head Cap Screw M5058003X12
3 Washer M0248490X12
4 Plate M0174470X12
5 Regulator Seat M0200830X12
6* O-ring See Parts Kits
7 Body M0297920X12
8 Filter Net M0102200X12
9 Washer M5057002X12
10 Nut M5060005X12
11 Filter Cover M0174411X12
12* Felt See Parts Kits
13* O-ring See Parts Kits
14 Spring M0105970X12
15* Pad Holder Unit See Parts Kits
16 Nameplate M0300470X12
17 Screw Unit M0200790X12
18* Diaphragm See Parts Kits
19 Regulator Cover M0239890X12
20 Spring Washer M5001003X12
21 Nut M5006012X12
*Recommended Spare Parts.

FL Series
17
9
7
8
546
3
2
10 11 13 14 15 17
5/64 4/18 22 23 24
26
27
28
12
293032313334353637383940
1
16
43
19
20
21
25
48
46
43
19
20
21
25
48
46
47
19
20
21
25 47
25
21
20
19
9
7
8
546
3
2
10 11 13 14 15 17
5/64 4/18 22 23 24
26
27
28
12
293032313334353637383940
1
16
43
19
20
21
25
48
46
43
19
20
21
25
48
46
47
19
20
21
25 47
25
21
20
19
Figure 5. Type FL Main Valve Assembly
NPS 1 AND 2 (DN 25 AND 50)
WITH TYPE SR
NPS 3, 4, AND 6 (DN 80, 100, AND 150)
WITH TYPE SR
NPS 1 AND 2
(DN 25 AND 50)
NPS 3, 4, 6, AND 8
(DN 80, 100, 150, AND 200)
NOTE: KEYS 18 AND 64 FOR NPS 6 AND 8 (DN 150 AND 200)
SPACER DETAILS
FOR SIZES SMALLER THAN
NPS 6 (DN 150)
SPACER DETAILS
FOR NPS 6 TO 12
(DN 150 TO 300)

FL Series
18
Figure 6. Type SRS Assembly
211 210 206 209 208 206 207 206
200 201 202 203 204 205 23 24
200
SPACER DETAILS
FOR NPS 6 TO 12
(DN 150 TO 300)
SPACER DETAILS
FOR SIZES SMALLER THAN
NPS 6 (DN 150)

FL Series
19
50
57
54
53
55
“L” PORT
NPS 1 AND 2 (DN 25 AND 50)
“A” PORT
TYPE PRX/120
“B” PORT
TYPE SA/2
56
52
GE46220_A
Figure 7. Type FL Single Pilot Mounting Assembly

FL Series
20
Figure 7. Type FL Single Pilot Mounting Assembly (continued)
53
56
55
50
54
TYPE SA/2
TYPE PRX/120
“A” PORT
“L” PORT
“B” PORT
NPS 3 AND 4 (DN 80 AND 100)
GE45181_B