Instruction Manual
December 2013
T208VR Series
T208VR Series Tank Blanketing Vacuum Regulator
Table of Contents
Introduction .................................................................. 1
Specifications .............................................................. 2
Principle of Operation .................................................. 2
Installation ................................................................... 4
Startup, Adjustment and Shutdown .............................5
Maintenance ................................................................ 5
Parts Ordering ............................................................. 9
Parts List......................................................................9
Figure 1. Type T208VR Vacuum Regulator
Introduction
Scope of the Manual
This Instruction Manual provides instruction for
installation, startup, maintenance and parts list for the
T208VR Series tank blanketing vacuum regulator.
Instructions and parts lists for other equipment used
with these regulators are found in separate manuals.
Product Description
The T208VR Series vacuum regulators are used
for precise control of small capacity, low-pressure
service applications where a constant vacuum must be
maintained. These direct-operated vacuum regulators
come in 3/4 and 1-inch / DN 20 and 25 body sizes and
have a 7/16-inch / 11 mm ori ce and a 1/4-inch spring
case vent connection with optional umbrella vent
assembly. The individual products are described
as follows:
Type T208VR
The Type T208VR is a vacuum regulator with internal
pressure registration requiring no control line.
Type T208VRM
The Type T208VRM has a control line connection and
blocked throat for external pressure registration.
D103760X012
www.fisherregulators.com
T208VR Series
Specications
The Specications section lists the specications for T208VR Series Tank Blanketing Vacuum Regulator. Factory
specications, such as maximum temperature, maximum inlet and outlet pressures, spring range, orice size and
material and seat material are stamped on the nameplate fastened on the regulator at the factory.
Available Congurations
Type T208VR: Direct-operated vacuum regulator
with internal pressure registration
Type T208VRM: Direct-operated vacuum regulator
with blocked throat and control line connection for
external pressure registration
Body Sizes and End Connection Styles
BODY SIZE END CONNECTION STYLES
Inch DN Gray cast iron 316L/316 Stainless steel
3/4 or 1 20 or 25 NPT NPT or CL150 RF
Maximum (Casing) Pressure
(1)
(1)
35 psig / 2.41 bar
Maximum (Casing) Vacuum Pressure
(1)
Full Vacuum
Maximum Allowable Vacuum Pressure
(1)
See Table 1
Maximum Downstream Vacuum Pressure
(1)
Full Vacuum
1. The pressure/temperature limits in this Instructional Manual and any applicable standard or code limitation should not be exceeded.
!
WARNING
Vacuum Control Pressure Ranges
See Table 1
Pressure Registration
Type T208VR: Internal
Type T208VRM: External
Orice Size
7/16-inch / 11 mm
Control Line Connection
1/2 NPT
Material Temperature Capabilities
Nitrile (NBR):
-20 to 180°F / -29 to 82°C
Fluorocarbon (FKM):
40 to 300°F / 4 to 149°C
Spring Case Connection
1/4 NPT
Approximate Weight
19 pounds / 8.6 kg
performed by unqualied person may
result in improper adjustment and
unsafe operation. Either condition
Failure to follow these instructions or
to properly install and maintain this
equipment could result in an explosion,
re and/or chemical contamination
may result in equipment damage
or personal injury. Only a qualied
person shall install or service the
T208VR Series vacuum regulators.
causing property damage and personal
injury or death.
Fisher® vacuum 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. (Regulator
Technologies) instructions.
If the vacuum regulator discharges
process uid 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 qualied service person to
service the unit. Installation, operation
Principle of Operation
The T208VR Series vacuum regulators (Figure 2)
are used to maintain a constant vacuum at the
regulator inlet. A decrease in this vacuum (increase
in absolute pressure) beyond this value registers on
the diaphragm and opens the disk. This permits a
downstream vacuum of lower absolute pressure than
the upstream vacuum to restore the upstream vacuum
to its original pressure setting. On the Type T208VR,
pressure registers underneath the diaphragm. The
Type T208VRM has a control line connecting the
diaphragm casing to the vacuum line and an O-ring
stem seal blocking the throat causing registration
pressure to ow through the control line.
and maintenance procedures
(1)
(1)
2
ADJUSTING NUT
T208VR Series
CONTROL SPRING
VENT
DIAPHRAGM
PIPE PLUG
INLET PRESSURE (CONTROLLED VACUUM)
OUTLET PRESSURE (HIGHER VACUUM SOURCE)
ATMOSPHERIC PRESSURE
PUSHER
POST
LEVER
TYPE T208VR WITH INTERNAL PRESSURE REGISTRATION
VACUUM
PUMP
VACUUM BEING
CONTROLLED
STEM
VALVE PLUG DISK
ORIFICE
HIGHER VACUUM SOURCE
ADJUSTING NUT
CONTROL SPRING
VENT
DIAPHRAGM
CONTROL LINE
CONNECTION PORT
PUSHER
POST
LEVER
INLET PRESSURE (CONTROLLED VACUUM)
OUTLET PRESSURE (HIGHER VACUUM SOURCE)
ATMOSPHERIC PRESSURE
TYPE T208VRM WITH EXTERNAL PRESSURE REGISTRATION
STEM SEAL
THROAT SEAL
STEM
VALVE PLUG DISK
ORIFICE
Figure 2. Type T208VR Operational Schematic
3
T208VR Series
Installation
!
WARNING
Personal injury, property damage,
equipment damage or leakage due to
escaping gas or bursting of pressurecontaining parts may result if this
equipment is overpressured or is
installed where service conditions
could exceed the limits given in the
Specications or where conditions
exceed any ratings of the adjacent piping
or piping connections. To avoid such
injury or damage, provide pressurerelieving or pressure-limiting devices
(as required by the appropriate code,
regulation or standard) to prevent
service conditions from exceeding
those limits.
Additionally, physical damage to this
equipment could cause personal injury
or property damage due to escaping
gas. To avoid such injury or damage,
install the equipment in a safe and well
ventilated location.
Note
If this equipment is shipped mounted on
another unit, install that unit according to
the appropriate instruction manual.
1. Only personnel qualied through training and
experience shall install, operate and maintain this
equipment. For T208VR Series equipment that
is shipped separately, make sure that there is no
damage to or foreign material in it. Also ensure that
all tubing and piping have been blown free.
!
WARNING
This equipment may vent some gas to the
atmosphere. In hazardous or ammable
gas service, vented gas may accumulate
and cause personal injury, death or
property damage due to re or explosion.
Vent equipment in hazardous gas service
to a remote, safe location away from air
intakes or any hazardous area. The vent
line or stack opening must be protected
against condensation or clogging.
2. This equipment may be installed in any position as
long as the ow through the body is in the direction
indicated by the arrow attached to the body. If
continuous operation is required during inspection
or maintenance, install a threeway bypass valve
around the equipment.
3. To keep the vent assembly (key 26) from being
plugged or the spring case (key 3) from collecting
moisture, corrosive chemicals or other foreign
material, point the vent down or otherwise protect
it. The diaphragm casing (key 4,Figure 6) may be
rotated in order to obtain desired positioning.
4. To remotely vent the regulator, remove the vent
assembly (key 26) and install obstruction-free
tubing or piping into the 1/4 NPT vent tapping.
Provide protection on a remote vent by installing
a screened vent cap into the remote end of the
vent pipe. If continuous operation of the system is
required during inspection or maintenance, install a
three-way bypass valve around the regulator.
5. The Type T208VRM requires a control line. Be sure
to install the control line before putting the regulator
into operation. Make the control line as short and
straight as possible and do not install it in a location
where ow may be turbulent. Signicant restrictions
in the control line can prevent proper pressure
registration. When using a hand valve, it should
be a full ow valve, such as a full port ball valve.
Install the control line sloping downward toward the
tank to prevent condensation buildup and avoid low
points (or traps) that could catch liquid. The sensing
line must enter the tank above the liquid level at a
point that senses the vapor space pressure and is
free from turbulence associated with tank nozzles
or vents. The control line pipe should be at least
1/2-inch / 13 mm in diameter and increase 1 pipe
size for every 10 feet / 3.05 m of control line, with
setpoint less than 5-inches w.c. / 12 mbar.
4
T208VR Series
Table 1. Vacuum Control Pressure Ranges
VACUUM CONTROL
PRESSURE RANGE
psig / bar psig / bar Inch / mm Inch / mm psig / bar psig / bar
0 to 4 inches w.c. /
0 to 10 mbar
0.05 to 0.75 /
3.5 to 52 mbar
0.15 to 1.75 /
10 to 121 mbar
0.25 to 2.75 /
17 to 190 mbar
1.5 to 4.75 /
0.10 to 0.33
3 to 12.8 /
0.21 to 0.88
1. Do not use uorocarbon (FKM) diaphragm with this spring at diaphragm temperatures lower than 60°F / 16°C.
SPRING PART
NUMBER
0N039427222 Unpainted 1E984637022
(1)
0N086027022 Unpainted
0N086127022 Unpainted
0N022027022 Dark green
0N004327022 Yellow
1D141827012 Blue
SPRING
COLOR
BACK DISK
SPRING PART
NUMBER
18B0911X012
CHANGE IN
CONTROL PRESSURE
TO WIDE-OPEN
1 inch w.c./
2 mbar
5.5 inches w.c. /
14 mbar
0.44 /
0.03
0.63 /
0.043
1.44 /
0.10
3.88 /
0.27
SPRING WIRE
DIAMETER
0.062 /
1.57
0.105 /
2.67
0.125 /
3.17
0.135 /
3.43
0.162 /
4.12
0.207 /
5.26
SPRING FREE
LENGTH
3.063 /
77.80
2.500 /
63.50
2.500 /
63.50
2.500 /
63.50
2.500 /
63.50
2.500 /
63.50
MAXIMUM
INLET
VACUUM
5.1 psig /
0.35 bar
5.7 psig /
0.39 bar
6.5 psig /
0.45 bar
7.4 psig /
0.51 bar
9.2 psig /
0.63 bar
12.0 psig /
0.83 bar
MAXIMUM
OUTLET
VACUUM
7.5 psig /
0.52 bar
7.5 psig /
0.52 bar
7.5 psig /
0.52 bar
7.5 psig /
0.52 bar
7.5 psig /
0.52 bar
12.0 psig /
0.83 bar
Startup, Adjustment and Shutdown
Note
The Specications section and
Table 1 provide the maximum
pressure capabilities for each vacuum
regulator construction. Use pressure
gauges to monitor inlet pressure and
outlet pressure during startup and
adjustment procedures.
Startup
1. Slowly open the downstream (outlet) shutoff valve,
if used, to vacuum regulator and leave it fully open.
2. Slowly open the upstream (inlet) shutoff valve
(for Type T208VRM, open the control line shutoff
valve rst followed by the upstream shutoff valve)
between the tank and vacuum regulator.
3. Use gauges to monitor pressure.
Adjustment
1. Remove the closing cap (key 22) and turn the
adjusting nut (key 20) clockwise to increase the
pressure setting or counterclockwise to decrease
the setting. Use gauges to monitor pressure.
2. Replace the closing cap (key 22) after making
this adjustment.
3. If desired, the closing cap (key 22) may be wired
to the hole provided in the spring case (key 3) to
discourage tampering.
Shutdown
1. Close the nearest upstream shutoff valve.
2. Close the nearest downstream shutoff valve.
3. Open the vent valve between the equipment and
the downstream shutoff valve nearest to it. All
pressure between these shutoff valves is released
through the open vent valve.
Maintenance
Equipment parts are subject to normal wear and must
be inspected and replaced as necessary. The frequency
of inspection and replacement of parts depends upon
the severity of service conditions or the requirements
of local, state and federal regulations. Due to the
care Regulator Technologies takes in meeting all
manufacturing requirements (heat treating, dimensional
tolerances, etc.), use only replacement parts
manufactured or furnished by Regulator Technologies.
5
T208VR Series
!
WARNING
To avoid personal injury, property
damage or equipment damage caused by
sudden release of pressure or explosion
of accumulated gas, do not attempt any
maintenance or disassembly without
rst isolating the regulator from system
pressure and relieving all internal
pressure from the equipment.
Vacuum regulators that have been
disassembled for repair must be
tested for proper operation before
being returned to service. Only
parts manufactured by Regulator
Technologies should be used for
repairing Fisher® vacuum regulator.
Restart gas utilization equipment
according to normal startup procedures.
General Maintenance
1. Visually inspect the vacuum regulators and its
parts for any damage.
2. Ensure tight connections, tight seals and safe
operation. If there is an evidence of leakage
or unstable internal motion, a rebuild with seal
replacement and relubrication may be necessary.
3. Observe the controlled upstream vacuum pressure
and downstream vacuum source pressure.
Body Area
To gain access to the disk assembly and body gasket,
follow this procedure. Before the following steps can be
performed, release all pressure from the diaphragm case.
Key numbers are referenced in Figures 3 and 4.
1. To inspect and replace the disk holder assembly
(key 13), remove the body cap assembly (key 43).
2. If it is necessary to replace the disk holder
assembly (key 13), remove it from the disk spacer
(key 44).
3. To inspect the orice (key 5) on Types T208VR
and T208VRM or throat seal O-ring (key 31) and
machine screw (key 34) on the Type T208VRM,
remove the cap screws (key 2) and separate the
lower casing (key 4) from the body (key 1).
4. Remove and inspect the body seal O-ring (key 11).
For Type T208VRM, also inspect the throat seal
O-ring (key 31) by removing the machine screw
(key 34). Replace if necessary. To install a throat
seal, place the O-ring on the machine screw and
thread into guide insert (key 18) to seal.
5. Inspect the orice (key 5) by carefully running your
nger along the edges to check for nicks or dents;
replace if necessary. Lightly lubricate the threads
of the replacement orice with a good grade of light
grease and tighten using 340 to 470 inch-pounds /
38.5 to 53.1 N•m.
6. If necessary, install the replacement backup ring
(key 49) and body seal O-ring (key 11) into the
body (key 1).
7. Replace the body (key 1) on the diaphragm casing
(key 4) and secure with the cap screws (key 2) using
90 to 126 inch-pounds / 10.2 to 14.2 N•m of torque.
Note
The disk holder assembly (key 13) is
comprised of the disk and disk holder.
8. Install the disk holder assembly (key 13) and
secure it to the disk spacer (key 44).
9. Place the back disk spring (key 41) and a new
back body seal O-ring (key 11) on the back body
cap (key 43).
10. Lightly lubricate the threads when replacing the
body cap assembly. Use 340 to 470 inch-pounds /
38.5 to 53.1 N•m of torque.
Diaphragm and Spring Case Area
To gain access to the control spring, diaphragm
assembly, valve stem and stem O-ring, follow this
procedure. All pressure must be released from the
diaphragm case before performing the following steps.
6
T208VR Series
Type T208VR Vacuum Regulator
Key numbers are referenced in Figure 3.
1. Remove the closing cap (key 22) and turn the
adjusting nut (key 20) counterclockwise until all
compression is removed from the control spring
(key 6). If the only further maintenance is to
change the control spring, skip to step 11.
2. Remove the spring case cap screws (key 24)
and hex nuts (key 23) and lift off the spring case
assembly (key 3).
3. Remove the diaphragm (key 10) and attached
parts by tilting it so that the pusher post (key 8)
slips off the lever assembly (key 16). To
separate the diaphragm from the attached parts,
unscrew the hex nut (key 21). If the only further
maintenance is to replace the diaphragm parts,
skip to step 8.
4. To replace the lever assembly (key 16), remove
the machine screws (key 17).
5. To replace the valve stem (key 14), perform steps 1
through 3 of Body Area Maintenance then pull valve
stem (key 14) out of the guide insert (key 18).
6. Install the stem (key 14) into the guide insert
(key 18) and perform Body Area Maintenance
procedure steps 6 through 10 as necessary.
7. Install the lever assembly (key 16) into the valve
stem (key 14) and secure the lever assembly
(key 16) with the machine screws (key 17) using
14 to 19 inch-pounds / 1.6 to 2.1 N•m of torque.
8. Reassemble the diaphragm assembly in the
following order:
• Pusher post (key 8)
• Diaphragm head gasket (key 45)
• Lower Diaphragm head (key 7)
• Diaphragm (key 10)
• Upper Diaphragm head (key 7)
• Washer (key 36)
Secure the parts with hex nut (key 21) using
60 to 72 inch-pounds / 6.8 to 8.1 N•m of torque.
9. Install the pusher post (key 8) plus attached
diaphragm parts onto the lever assembly (key 16).
10. Install the spring case assembly (key 3) and
control spring (key 6) on the lower casing (key 4)
so that the vent assembly (key 26) is correctly
oriented and secure them with the spring case
cap screws (key 24) and hex nuts (key 23) to
ngertightness only.
11. Install the upper spring seat (key 19) and the
adjusting nut (key 20). Turn the adjusting nut
clockwise until there is enough control spring
(key 6) force to provide proper slack to the
diaphragm (key 10) and attached parts. Using a
crisscross pattern, nish tightening the spring case
cap screws (key 24) and hex nuts (key 23) to 90
to 126 inch-pounds / 10.2 to 14.2 N•m of torque.
Adjust the control pressure to the desired pressure
setting, refer to Adjustment section.
12. Install a replacement closing cap gasket (key 25)
if necessary and then install the closing cap
(key 22).
Type T208VRM Vacuum Regulator
Key numbers are referenced in Figure 4.
1. Remove the closing cap (key 22) and turn the
adjusting nut (key 20) counterclockwise until all
compression is removed from the control spring
(key 6). If the only further maintenance is to
change the control spring, skip to step 10.
2. Remove the spring case cap screws (key 24)
and hex nuts (key 23) and lift off the spring case
assembly (key 3).
3. Remove the diaphragm (key 10) and attached
parts by tilting it so that the pusher post (key 8)
slips off the lever assembly (key 16). To
separate the diaphragm from the attached parts,
unscrew the hex nut (key 21). If the only further
maintenance is to replace the diaphragm parts or
change the control spring (key 6), skip to step 8.
4. To replace the lever assembly (key 16), remove
the machine screws (key 17).
5. To replace the valve stem (key 14) and stem seal
O-ring (key 30), perform steps 1 through 3 of Body
Area Maintenance and then pull the valve stem out
of the guide insert (key 18).
6. Lightly grease the replacement stem seal O-ring
(key 30) and install on the valve stem (key 14).
Install the valve stem by pushing it into the guide
insert (key 18). Perform Body Area Maintenance
procedure steps 6 through 10 as necessary.
7. Install the lever assembly (key 16) into the valve
stem (key 14) and secure the lever assembly with
the machine screws (key 17) using 14 to
19 inch- pounds / 1.6 to 2.1 N•m of torque.
7
T208VR Series
Table 2. Body Part Numbers (Key 1)
BODY MATERIAL END CONNECTION STYLE
Gray cast iron NPT ERSA03695A0 ERSA03697A0
316L/316 Stainless steel
1. All anges are welded on. All ange dimensions are 14-inches / 356 mm face-to-face.
NPT (standard) ERSA00231A0 ERSA00764A0
CL150 RF ERSA01470A6 ERSA01470A7
(1)
3/4-Inch / DN 20 Body 1-Inch / DN 25 Body
PART NUMBER
8. Reassemble the diaphragm assembly in the
following order:
• Pusher post (key 8)
• Diaphragm head gasket (key 45)
• Lower Diaphragm head (key 7)
• Diaphragm (key 10)
• Upper Diaphragm head (key 7)
• Washer (key 36)
Secure the parts with hex nut (key 21) using
60 to 72 inch-pounds / 6.8 to 8.1 N•m of torque.
9. Install the pusher post (key 8) plus attached
diaphragm parts onto the lever assembly (key 16).
10. Install the spring case (key 3) and control spring
(key 6) on the lower casing (key 4) so that the
vent assembly (key 26) is correctly oriented and
secure them with the spring case cap screws
(key 24) and hex nuts (key 23) to ngertightness
only. Install upper spring seat (key 19) and
adjusting nut (key 20).
11. Turn the adjusting nut (key 20) clockwise until
there is enough control spring (key 6) force
to provide proper slack to the diaphragm
(key 10) and attached parts. Using a crisscross
pattern, nish tightening the spring case cap
screws (key 24) and hex nuts (key 23) to 90 to
126 inch- pounds / 10.2 to 14.2 N•m of torque.
Adjust the control pressure to the desired pressure
setting, refer to Adjustment section.
12. Install a replacement closing cap gasket (key 25)
if necessary and then install the closing cap
(key 22).
To Convert Constructions
The Type T208VR to the Type T208VRM:
New parts required: keys 30, 31 and 34
1. Remove pipe plug (key 27, Figure 3) from the
diaphragm casing (key 4).
2. Refer to steps 1 and 3 in the Body Area
Maintenance section.
3. Insert the throat seal O-ring (key 31, Figure 4) and
one machine screw (key 34).
4. Insert the stem seal O-ring (key 30) by following
steps 1 through 7 and 9 through 12 in the
Diaphragm and Spring Case Area Maintenance
(Type T208VRM Vacuum Regulator) section.
The Type T208VRM to the Type T208VR:
New parts required: key 27
1. Insert pipe plug (key 27, Figure 3) in the
diaphragm casing (key 4).
2. Follow steps 1 through 7 in the Diaphragm and
Spring Case Area maintenance procedure under
Type T208VR section. Make sure to remove the
stem seal O-ring (key 30, Figure 4) right after
step 5. After removing the stem seal O-ring,
continue steps 9 through 12.
3. Follow steps 1 through 10 of Body Area
maintenance section making sure to remove the
throat seal (key 31, Figure 4) and machine screw
(key 34, Figure 4) in step 4.
8
Parts Ordering
T208VR Series
When corresponding with the local Sales Ofce or
Sales Representative about this regulator, include
the type number and all other pertinent information
Parts List
Key Description Part Number
Spare Parts Kit, included are keys 10, 11, 12,
25, 42 and 45)
Nitrile (NBR) (standard) RT208XXDD12
Fluorocarbon (FKM) RT208XXVV12
1 Body See Table 2
2 Cap Screw (2 required)
For gray cast iron body 1C856228992
For stainless steel body 18B3456X012
3 Spring Case Assembly
Gray cast iron ERSA01074A1
Stainless steel ERSA01074A0
4 Lower Casing
Gray cast iron 47B2271X012
316L/316 Stainless steel ERSA00196A0
5 Orice, 316 Stainless steel
7/16-inch / 11 mm 0L0832X0012
6 Control Spring See Table 1
7 Diaphragm Head (2 required)
304 Stainless steel 17B9723X032
8 Pusher Post, 316 Stainless steel 18B3462X012
10* Diaphragm
Nitrile (NBR) (standard) 17B9726X012
Fluorocarbon (FKM) 23B0101X052
11* Body Seal O-ring
Nitrile (NBR) (standard) 1H993806992
Fluorocarbon (FKM) 1H9938X0012
12* Insert Seal O-ring
Nitrile (NBR) (standard) 1B885506992
Fluorocarbon (FKM) 1B8855X0012
13 Disk Holder Assembly
316 Stainless steel with
Nitrile (NBR) (standard) ERSA01112A0
Fluorocarbon (FKM) ERSA01112A1
14 Stem, 316 Stainless steel ERSA00200A0
16 Lever Assembly, 302 Stainless steel 1B5375000B2
17 Machine Screw (2 required)
18-8 Stainless steel 19A7151X022
18 Guide Insert, 316 Stainless steel 27B4028X022
19 Upper Spring Seat, Steel 1A201824092
20 Adjusting Nut, Brass 17B9740X012
21 Hex Nut, Steel 1A345724122
stamped on the nameplate. Specify the elevencharacter part number when ordering new parts from
the following parts list.
Key Description Part Number
22 Closing Cap
Zinc (standard) 1B541644012
Steel 1K797024092
23 Hex Nut (8 required)
For gray cast iron body, Steel 1A345724122
For stainless steel body, Stainless steel 1A3457K0012
24 Spring Case Cap Screw (8 required)
For gray cast iron body, Steel 1A579724052
For stainless steel body, Stainless steel 1A5797T0012
25* Closing Cap Gasket, Neoprene (CR) 1P753306992
26 Vent Assembly
Spring Case Up (Type Y602-11) (standard) 17A5515X012
Spring Case Down (Type Y602-2) 17A6571X012
27 Pipe Plug (Type T208VR only)
For stainless steel body
316 Stainless steel 1A369235072
For gray cast iron body, Steel 1A369224492
30* Stem Seal O-ring (Type T208VRM only)
Nitrile (NBR) (standard) 1H2926G0012
Fluorocarbon (FKM) 1H2926X0022
31* Throat Seal O-ring (Type T208VRM only)
Nitrile (NBR) (standard) 1D682506992
Fluorocarbon (FKM) 1D6825X0012
34 Machine Screw
(Type T208VRM only)
18-8 Stainless steel 18A0703X022
36 Washer, Steel 18B3440X012
41 Back Disk Spring See Table 1
42* Back Body Seal O-ring
Nitrile (NBR) (standard) 13A1584X012
Fluorocarbon (FKM) 13A1584X022
43 Back Body Cap
316 Stainless steel 1F2737X0012
44 Disk Spacer
316 Stainless steel ERSA00198A0
45* Diaphragm Head Gasket, Composition 18B3450X012
46 Nameplate - - - - - - - - - - -
47 Drive Screw (4 required)
18-8 Stainless steel 1A368228982
48 Flow Arrow - - - - - - - - - - 49 Backup Ring, 302 Stainless steel 18B3446X012
51 Connector Thread Stud, Steel 17B9741X012
*Recommended spare part
9
T208VR Series
7
36 25
19 20 51
L2
6
21 18 14
L2
5
13
41
10 7 45 8
16
17
22
46
26
24
23
27
4
ERSA02741
□ APPLY LUBRICANT
L1 = SILICONE GREASE
L2 = ANTI-SEIZE COMPOUND
1. Lubricants must be selected such that they meet the temperature requirements.
(1)
:
12
L1
L1 L1
11 49 44
42
3
47
48
43
1
2
Figure 3. Type T208VR (Internal Registration) Assembly
10
T208VR Series
7 362519 5120
L2
6
21 14 4118 31
L1
34 5
L2
10 7 45 8 16 17 3012 11 49 44 13
L1
L1 L1
22
46
26
24
23
4
ERSA02742
□ APPLY LUBRICANT
L1 = SILICONE GREASE
L2 = ANTI-SEIZE COMPOUND
1. Lubricants must be selected such that they meet the temperature requirements.
(1)
:
3
47
48
43
1
2
42
L1
Figure 4. Type T208VRM (External Registration) Assembly
11
T208VR Series
Industrial Regulators
Emerson Process Management
Regulator Technologies, Inc.
USA - Headquarters
McKinney, Texas 75070 USA
Tel: +1 800 558 5853
Outside U.S. +1 972 548 3574
Asia-Paci c
Shanghai 201206, China
Tel: +86 21 2892 9000
Europe
Bologna 40013, Italy
Tel: +39 051 419 0611
Middle East and Africa
Dubai, United Arab Emirates
Tel: +011 971 4811 8100
Natural Gas Technologies
Emerson Process Management
Regulator Technologies, Inc.
USA - Headquarters
McKinney, Texas 75070 USA
Tel: +1 800 558 5853
Outside U.S. +1 972 548 3574
Asia-Paci c
Singapore 128461, Singapore
Tel: +65 6770 8337
Europe
Bologna 40013, Italy
Tel: +39 051 419 0611
Chartres 28008, France
Tel: +33 2 37 33 47 00
Middle East and Africa
Dubai, United Arab Emirates
Tel: +011 971 4811 8100
TESCOM
Emerson Process Management
Tescom Corporation
USA - Headquarters
Elk River, Minnesota 55330-2445, USA
Tels: +1 763 241 3238
+1 800 447 1250
Europe
Selmsdorf 23923, Germany
Tel: +49 38823 31 287
Asia-Paci c
Shanghai 201206, China
Tel: +86 21 2892 9499
The distinctive diamond shape cast into every spring
case uniquely identifies the regulator as part of the
Fisher® brand and assures you of the highest-quality
engineering, durability, performance, and support.
For further information visit www.fisherregulators.com
The Emerson logo is a trademark and service mark of Emerson Electric Co. All other marks are the property of their prospective owners. Fisher is a mark owned by Fisher Controls International LLC,
a business of Emerson Process Management.
The contents of this publication are presented for informational purposes only, and while every effort has been made to ensure their accuracy, they are not to be construed as warranties or
guarantees, express or implied, regarding the products or services described herein or their use or applicability. We reserve the right to modify or improve the designs or specifi cations of such
products at any time without notice.
Emerson Process Management Regulator Technologies, Inc. does not assume responsibility for the selection, use or maintenance of any product. Responsibility for proper selection, use and
maintenance of any Emerson Process Management Regulator Technologies, Inc. product remains solely with the purchaser.
©Emerson Process Management Regulator Technologies, Inc., 2013; All Rights Reserved
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