Emerson T124 User manual

www.SpenceValve.com
Spence Types T124 and T134 Temperature and
Pressure Pilots
▲ WARNING
Failure to follow these instructions or
to properly install and maintain this
equipment could result in an explosion,
fire and/or chemical contamination
causing property damage and personal
injury or death.
Emerson temperature pilot must be
installed, operated and maintained
in accordance with federal, state and
local codes, rules and regulations
and Emerson Process Management
Regulator Technologies, Inc.
(Emerson) instructions.
If the temperature pilot 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.
Installation, operation and maintenance
procedures performed by unqualified
personnel may result in improper
adjustment and unsafe operation. Either
condition may result in equipment
damage or personal injury. Only a
qualified person shall install or service
the Types T124 and T134.
Introduction
Scope of the Manual
This manual provides instructions for installation,
maintenance and parts information for the Types T124
and T134 temperature pilot.
Product Description
The steam pressure reducing valve and temperature
regulator in a single pilot-operated valve is a
combination of Type T124 or T134 Pilot and a Type
E or C Main Valve. Steam pressure is modulated
in proportion to temperature and load variations.
Pressure control provides fast, accurate adjustment of
heat transfer rate to demand requirements.
This pilot is primarily intended for use on
instantaneous heaters. By combining both temperature
and pressure control in one pilot, unusually close
regulation of temperature is achieved through the
anticipation of fast load changes. An additional benefit
of this pilot is that pressure reduction and temperature
control can be provided with a single regulator. For
pressures not to exceed 20 psi / 1.38 bar, Type T134
should be used. For pressures between 20 and
125 psi / 1.38 and 8.62 bar, Type T124 should
be used.
Figure 1. Types T124 and T134 Temperature Pilot
Instruction Manual
VCIMD-14980
November 2021
Types T124 and T134

Specications
The Specications section gives some general specications for the Types T124 and T134 temperature pilots.
The nameplates give detailed information for a specic pilot as built in the factory.
Available Configurations
Type T124: Operating pressures between 20 to
125 psi / 1.38 to 8.62 bar
Type T134: Operating pressures up to
20 psi / 1.38 bar
Maximum Inlet Temperature(1)
Cast Iron: 450°F / 232°C
Cast Steel (Type T134 only): 750°F / 400°C
Temperature Control Ranges(1)
20 to 120°F / -7 to 49°C
50 to 150°F / 10 to 66°C
70 to 170°F / 21 to 77°C
120 to 220°F / 49 to 104°C
150 to 300°F / 66 to 149°C
170 to 270°F / 77 to 132°C
250 to 350°F / 121 to 177°C
290 to 390°F / 143 to 199°C
300 to 400°F / 149 to 204°C
330 to 430°F / 166 to 221°C
400 to 500°F / 204 to 260°C
Maximum Inlet Pressure(1)
Cast Iron: 250 psi / 17.2 bar
Cast Steel (Type T134 only): 600 psi / 41.4 bar
Construction Materials
Body: Cast Iron, Steel
Stem, Disk, Seat and Diaphragm: Stainless steel
Gasket: Graphite
Spring: Steel
Approximate Weights
Type T124: 16 lbs / 7.3 kg
Type T134: 18 lbs / 8.2 kg
Options
Bronze or Stainless steel Thermostat
Tubing from 5 to 50 ft / 1.52 to 15.2 m
Thermostat Well
Dial Thermometer
Adjustment Indicator
Integral Mount Body
1. The pressure/temperature limits in this Instruction Manual or any applicable standard limitation should not be exceeded.
Principle of Operation
The regulator is operated by its initial steam pressure.
The main valve is normally closed, being held so
by initial pressure on the disk and by an internal
main spring. The pilot is opened by compressing the
pressure limit spring.
When steam is turned on, it flows to the pilot through
the connecting nipple and union (see Figure 2). At
No. 8B tee on the pilot outlet, the flow divides. One
branch is connected to bleedport No. 4A and the other
to restriction elbow No. 5A and the underside of the
main valve diaphragm. Bleedport No. 4A restricts
the flow, builds pressure under the diaphragm and
opens the main valve. Restriction No. 5A steadies the
operation of the regulator.
Steam flowing to the heater creates a rising delivery
pressure which is feed back through the control pipe to
the underside of the pilot diaphragm. As the pressure
on this diaphragm approaches a balance with the
thrust of the pressure limit spring, the pilot throttles.
This, in turn, allows the main valve to assume a
position where just enough steam flows to maintain the
set maximum delivery pressure.
Installation
▲ WARNING
Personal injury or system damage may
result if this pilot is installed, without
appropriate overpressure protection,
where service conditions could exceed
the limits given in the Specifications
section and/or pilot nameplate.
Additionally, physical damage to the
pilot may result in personal injury or
property damage due to escaping
of accumulated gas. To avoid such
injury and damage, install the pilot in a
safe location.
As the temperature of the heated medium rises, vapor
pressure is generated in the thermostat bulb and
transmitted to the pilot temperature diaphragm. When
the vapor pressure becomes sufficient to over-balance
the combined thrust of the temperature adjusting
and pressure limit springs, the regulator throttles to
maintain the set temperature.
2
Types T124 and T134

Figure 2. Typical Heater Installation
COLD WATER
SUPPLY
THERMOSTAT
CHECK
VALVE
HOT WATER
SERVICE
SAFETY
VALVE
FROM CIRCULATING PUMP
DRAIN
STRAINER
F AND T
STEAM TRAP
QUICK VENT
AIR VALVE AND
VACUUM BREAKER
INSTANTANEOUS HEATER
TO RETURN
CONTROL
PIPE GATE
VALVE
GATE
VALVE
GATE VALVE
STRAINER
STEAM
TRAP
INITIAL PRESSURE TYPE ET124 OR ET134
TEMPERATURE REGULATOR
DO NOT INSULATE
BELOW THIS LINE
Figure 3. Type T124 Tubing Bends Connection
PILOT
FLEXIBLE
ARMORED TUBING
TEMPERATURE
ADJUSTING SPRING
COWL BRACKET
SET SCREW
PRESSURE
LIMIT SPRING
DELIVERY PRESSURE
ADJUSTMENT SCREW
1/4" CONTROL PIPE
1/4" UNION
RESTRICTION BEND
MAIN VALVE
TYPE E OR E2
NO. 4A BLEED PORT
NO. 8B
TEE
BLEED PORT BEND
TEMPERATURE ADJUSTING
HAND WHEEL
THERMOSTAT BULB
3
Types T124 and T134

All pressure equipment should be
installed in a non-seismic area;
should not be exposed to fire; and
should be protected from thunderbolt
(lightning) strikes.
Hot water and similar liquid systems
require a relief valve to prevent
dangerous overpressure due to
expansion. Instantaneous heaters,
when operated on intermittent demand
(as in domestic water heating), require
the following conditions for best
temperature regulation.
• Constant forced recirculation of fluid
through the heater.
• Omission of thermostat well to reduce
temperature lag.
Note
Use of a thermostat compatible with the
heated medium is preferred over the
use of a standard thermostat installed
in a well which is compatible with the
heated medium. When the use of a well
is unavoidable, an appropriate heat
transfer medium should be installed
between the well and the thermostat.
△ CAUTION
The piping system must be
adequately designed and supported
to prevent extraordinary loads to the
pressure equipment.
Planning
1. Locate the regulator in a horizontal pipe. Provide
a trap ahead of the regulator to prevent water
hammer and erratic operation.
2. Use a strainer to avoid damaging effects of scale
and dirt in pipelines to protect the regulator.
3. Provide a three valve bypass to facilitate
inspection of the regulator without
interrupting service.
4. Position the thermostat horizontally. When
vertical or slanting, the tip end of the bulb must
point downward.
5. Locate the thermostat as close to the heater outlet
as practical. Expose the entire length of the bulb to
the active flow leaving the heater.
6. If the pressure rating of the heater or connected
equipment is less than the initial steam pressure,
provide a safety valve.
Figure 4. Type T124 with Valve Condensation Chamber Tubing Bends Connection
NO. 5A RESTRICTION
ELBOW
CONDENSATION CHAMBER
NO. 5B OPEN ELBOW
DO NOT INSULATE
BELOW THIS LINE
CONDENSATION
CHAMBER BEND
CONTROL PIPE
NO. 4A
BLEED PORT
NO. 8B TEE
RESTRICTION
BEND
4
Types T124 and T134

Main Valve
1. Flush the piping system thoroughly to clear it of
welding beads, scale, sand, etc.
2. Mount the main valve with diaphragm chamber
down and arrow on body pointing in the direction
of flow.
3. Mount screwed end valves in unions.
Pilot
1. Mount the pilot on either side of the main
valve by means of 1/4 in. / 6.35 mm nipple and
union provided.
2. Connect the 1/4 in. / 6.35 mm pipe tap at the inlet
side of the main valve as shown in Figure 3.
3. Screw No. 4A bleedport fitting into the 1/8 in. /
3.18 mm pipe tap at the outlet side of the main
valve body. Note that the bleed orifice in this fitting
is vital to operation of regulator.
4. Screw No. 8B tee into 1/8 in. / 3.18 mm pipe tap in
pilot. Select tap facing downstream.
5. Screw No. 5A elbow containing restriction orifice
into 1/8 in. / 3.18 mm pipe tap on the underside
of main valve diaphragm chamber. If the initial
pressure or pressure drop is less than 15 psi /
1.03 bar, use No. 5B open elbow without orifice.
6. Connect tubing bends as illustrated in Figure 3.
Valves with condensation chamber are fitted up
according to Figure 4.
Control Pipe
1. Use 1/4 in. / 6.35 mm pipe for this line which
connects the pilot pressure diaphragm chamber
(Figure 3) to the desired point of pressure control.
Note
On instantaneous heaters with steam in
shell, tap the control pipe into the shell.
Otherwise, enter the delivery steam pipe
at point of entrance to heater.
2. Pitch the control pipe away from the pilot and
avoid water pockets.
Insulation (If Required)
Insulation may be applied to the upper portion (globe
and flanges) of the main valve. Do not insulate the
diaphragm chamber or any part of pilot. See Figure 2.
Start-up and Setting
▲ WARNING
The pilot may be handling hazardous
fluids. Only qualified personnel, who are
familiar with the installation, should be
permitted to install, readjust, inspect or
maintain the pilot.
△ CAUTION
Insulation, may be applied to the pilot
body only. Do not insulate the bonnet.
Best temperature control will result when the delivery
pressure setting is the lowest steam pressure capable
of sustaining the desired temperature at maximum
load. Perform the following adjustments under full load
conditions or as near to such as possible.
1. Close bypass, open 1/4 in. / 6.35 mm control
pipe valve turn up the temperature adjusting
wheel (Figure 2) until 1/2 in. / 12.7 mm of thread
is exposed.
2. Back off pressure adjusting screw to remove all
compression from pressure limit spring.
3. Crack open the outlet stop valve.
4. Crack open the inlet stop valve, blow down
strainer and then slowly open the inlet valve wide.
5. Slowly turn up the pressure adjustment.
6. When steam begins to flow, gradually open the
outlet stop valve.
7. Continue delivery pressure adjustment until heater
output temperature is 5°F / -15°C above required.
If the temperature adjustment made at the
beginning of this procedure limits this operation,
set the adjusting wheel a little higher. Lower the
temperature adjusting wheel until the desired
operating temperature is reached.
8. If the adjustment is made at partial load, the
temperature will sag under heavier loads. When
maximum load occurs, increase the pressure
setting just enough to restore the temperature
to normal.
5
Types T124 and T134

Maintenance
▲ 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 first isolating the
pilot from system pressure and relieving
all internal pressure from the pilot.
Pilots that have been disassembled
for repair must be tested for proper
operation before being returned to
service. Only parts manufactured by
Emerson should be used for repairing
this pilot.
Due to normal wear or damage that may
occur from external sources, this pilot
should be inspected and maintained
periodically. The frequency of inspection
and replacement of parts depends upon
the severity of service conditions or the
requirement of local, state and federal
rules and regulations.
△ CAUTION
Do not, under any circumstances, loosen
the bolts on the diaphragm chamber of
the Type T124 or T134 Temperature Pilot
or attempt to dismantle the thermostat
element. The system is filled with
volatile fluid which, if lost, will render the
pilot inoperative.
Dismantling
1. Remove diaphragm nuts (key 4) and lift off top
works and diaphragms.
2. Remove the blind flange bolts (key 7) and
take off the blind flange (key 26). Remove the
screen (key 46) and gasket (key 45 ).
3. Hold the pusher plate (key 41) with a socket
wrench and remove stem nuts (key 25). The disk
(key 24) will drop off.
4. Lift out the stem (key 22) and valve spring
(key 43).
Assembly
1. Reassemble the pilot in the reverse of the
Dismantling procedure.
2. Ensure that diaphragm screw (key 37) and cowl
bracket (key 19) are centered on diaphragm flange
of the pilot body (key 44). Misalignment can cause
erratic performance.
3. When replacing diaphragms, apply sealing
compound (High pressure, high-temperature
sealant) sparingly to the shoulder of the diaphragm
screw (key 37). For steel pilot only, apply sealing
compound to the diaphragm flange of the
pilot body.
Seat, Disk and Stem Replacement
1. Examine the seat and disk sealing surfaces for
nicks or other signs of damage by pipeline debris.
Replace the sealing surfaces if damaged.
2. When seat or disk is replaced, ensure that the
sealing surfaces are lapped. After the sealing
surfaces are lapped in, disassemble and clean
all parts.
Note
Lap sparingly using 500 grit lapping
compound and light pressure. Heavy
grinding may cause galling, wide sealing
surfaces and a grooved disk, all of which
tend to produce leakage.
Figure 5. Travel Setting
GAGE PRICK PUNCH
STEM PROJECTION "B" TO BE
REMOVED AS PER INSTRUCTIONS
6
Types T124 and T134

3. Remove the seat ring (key 15) from the body with
a socket wrench.
4. Clean the body threads of old sealing compound
using a wire brush.
5. Apply new sealing compound (high-pressure, high-
temperature sealant) sparingly to the threads and
shoulder of the new seat ring. Let stand until tacky
before assembling into the pilot body.
6. Lap in joint between new stem (key 22) and disk
(key 24).
7. Apply lapping compound to the disk, place it on
the stem and secure with a stem nut (key 25). Slip
the stem into it’s normal position and lap the disk
to seat joint.
8. Screw on the pusher plate (key 41), omitting the
valve spring. Hold the disk on the seat and adjust
the pusher plate until dimension (C=11/64 in. /
4.37 mm) is obtained. See Figure 5).
9. Remove stem nut, being careful not to disturb the
pusher plate adjustment and lift stem out the top
of the pilot. Grind off stem projection B flush with
upper surface of pusher plate.
10. Reinsert stem in the pilot with disk and a stem
nut attached. Check dimension c and, if correct,
lock the position by prick punching the thread at
several points. Work carefully to avoid bending the
stem.
11. Scrape away burrs raised by prick punching.
Upper surface must be smooth and flat.
12. Check that valve travel is A=3/64 in. / 1.19 mm.
This need not be exact. Stem should move
smoothly. Binding indicates a bent stem.
13. Remove stem nut and disk and withdraw stem.
Install stem with valve spring, disk and both stem
nuts in place.
Thermostat Replacement
To replace thermostat, proceed as follows:
1. Cool the thermostat bulbs of original and
replacement elements below the low end of their
temperature range (See range tag on flexible
tubing). Maintain bulbs at this temperature during
replacement process.
2. Back off temperature adjusting wheel (key 14)
to within a turn or two of the barrel nut (key 1).
Back off pressure adjusting screw (key 20) to
remove all compression from spring. This will allow
temperature diaphragm plate (key 7) to remain
seated in correct alignment on balls (key 10) after
disengagement of thermostat assembly. Unless
pilot is upright, balls will fall out of position.
3. Remove diaphragm nuts (key 8) and detach
thermostat assembly from pilot. Similarly, detach
shipping plate from replacement thermostat. When
removing diaphragm nuts, be sure cowl assembly
(key 29) does not turn in threaded joint at barrel
nut (key 1). If movement is observed, reset
position as per instructions for temperature stem
position adjustment.
4. Install replacement thermostat on pilot and install
shipping plate on original thermostat. Tighten
bolts evenly.
Temperature Adjustment
The temperature stem adjustment is factory set
and locked by a barrel nut (key 1). If the setting is
accidentally disturbed, readjust as follows:
1. Remove thermostat assembly per
instructions in Thermostat Replacement section.
2. Clamp a flat bar to the cowl (key 29) so that the
pressure plate (key 7) is flush with the cowl’s
pinch ring.
3. Loosen cowl bracket set screw (key 30) and
turn cowl assembly (key 29) up about one turn.
Remove putty from barrel nut set screw (key 1),
loosen set screw and back off barrel nut about
one turn.
4. Crack inlet stop valve or apply shop air to the pilot
inlet. Turn up pressure adjusting screw (key 20)
until flow issues from pilot outlet tee. Rotate the
cowl assembly (key 29) down until flow stops.
5. Lock this adjustment with the cowl bracket’s set
screw (key 30). Turn down the barrel nut (key 1)
to jam against cowl bracket and lock with it’s set
screw (key 5).
6. Reinstall the thermostat assembly.
7
Types T124 and T134

Troubleshooting
▲ 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 troubleshooting or
disassembly without first isolating the
pilot from system pressure and relieving
all internal pressure from the pilot.
Pilots that have been disassembled
for repair must be tested for proper
operation before being returned to
service. Only parts manufactured by
Emerson should be used for repairing
this pilot.
Failure to Open or Sagging
Delivery Pressure
1. Adjusting spring on pilot may have been
tampered with.
2. Initial pressure may be down due to partially
closed supply valve, clogged strainer or
other obstruction.
3. Bleedport may have been omitted and an open
coupling substituted.
4. Orifice in No. 5A restriction elbow may be plugged.
5. Control pipe may be plugged. Most likely points
of obstruction are at shutoff valve and entrance to
delivery main.
6. Make sure heater is properly trapped and free
of condensate.
7. Pilot or main valve diaphragm may be broken.
Check for leakage around stem between
lever and diaphragm on pilot. Check the main
valve with air pressure in diaphragm chamber
before dismantling.
8. Leak in the thermostat bulb may allow heated fluid
pressure if sufficiently high to back up into the
thermal system to hold pilot closed.
Failure To Close – Overheating
1. Adjusting spring on pilot may have been
tampered with.
2. By-pass may be leaking.
3. Thermostat located too far from instantaneous
heater outlet.
4. Thermostat may be kinked or broken or have lost
its fill. Alternately warm and cool thermostat 10°F /
-12°C above and below its set point. If thermostat
is operative, the pin between the lever and
pressure diaphragm will become loose and snug
as the temperature stem on opposite end of the
lever moves up and down.
5. Orifice in bleedport may be plugged.
6. A lift of condensate to a hot well may require
more pressure in heater than the heated medium.
Arrange drainage of the heater by gravity or install
a pump to lift condensate.
7. Main valve or pilot may be held open by foreign
matter. To determine which valve leaks:
a. Close inlet stop valves and 1/4 in. / 6.35 mm
control valve.
b. Remove bleedport bend so pilot will exhaust
to atmosphere.
c. Remove all compression from pressure
adjusting spring.
If steam issues from the end of the bleedport bend on
the pilot, there is an obstruction between it’s seat and
disk. Steam blowing back from the bleedport on the
downstream side of the valve indicates that the main
valve disk is held open by foreign matter. Leakage
of either valve requires dismantling. See Dismantling
section for instructions.
Erratic Temperature Control
1. Thermostat installed too far from heater outlet.
2. Improper trapping or erratic discharge of trap.
3. Lift of condensate to hot well may require more
pressure than that called for by the medium
flowing through the heater. Arrange to drain
condensate by gravity or lift it with a pump.
4. Sticky check valve in return line.
5. Poor circulation through heater. Constant
circulation should be employed.
6. Valve too large for the heater or heater too large
for the load.
7. Valve installed too far from heater.
8
Types T124 and T134

Parts Ordering
When ordering parts, it is essential that the pilot type,
service and serial number be stated.
Select part by item number, but order by part number.
Specify complete part number when ordering.
Parts List
Key Description Part Number
1 Barrel Nut, Aluminum WAL04-02908-00
2 Set Screw Pivot Pin, Steel WAL05-04875-00
3 Cotter Pin, Steel WAL05-03265-00
4 Diaphragm Nut, Steel
Type T124 WAL05-02890-00
Type T134 WAL05-02871-00
5 Diaphragm Bolt, Steel
Type T124 WAL05-04879-00
Type T134 WAL05-04764-00
6 Pipe Plug, Ledloy WAL04-03769-00
7 Temperature Plate, Ledloy WAL04-03602-01
8 Temperature Diaphragm Nut, Steel WAL05-02992-00
9 Temperature Diaphragm Bolt, Steel WAL05-05634-00
10 Temperature Plate Ball, Steel WAL05-00553-00
11 Temperature Spring Button, Ledloy WAL04-01052-00
12 Temperature Spring, Oil Temperature Steel WAL05-05122-00
13 Thrust Bearing, Steel WAL05-00550-00
14 Handwheel, Cast Iron WAL04-02502-00
15 Set Screw Barrel, Steel WAL05-04874-00
16 Spring Button, Upper, Ledloy WAL04-01039-01
17 Pressure Spring, Oil Temperature Steel
Type T124 WAL05-05076-00
Type T134 WAL05-04980-00
18 Spring Button, Lower, Ledloy WAL04-01079-00
19 Cowl Bracket
Type T124, Cast Iron WAL04-01014-00
Type T134
Cast Iron WAL04-01016-00
Ductile Iron WAL04-01017-00
20 Adjusting Screw, 416 Stainless steel WAL04-04756-01
21 Stem Bushing, 203 PB WAL04-01080-00
22 Stem, 303 Stainless steel
Standard WAL04-05229-00
Composition Disk WAL04-05381-00
23 Seat Ring
Standard, 420 FH Stainless steel WAL04-04057-90
Composition Disk, 303 Stainless steel WAL04-04060-00
24 Disk
Standard, 440 CH WAL04-01772-90
Composition Disk, Brass Hycar WAL07-53512-00
25 Stem Nut
Steel WAL05-02888-00
Brass WAL05-02886-00
26 Blind Flange
Cast Iron WAL04-02151-00
Cast Steel WAL04-11678-00
27 Blind Flange Bolt
Steel and Iron WAL05-04803-00
Steel and Steel WAL05-11720-00
28 Temperature Plate Center, Ledloy WAL04-03715-00
29 Cowl, Steel WAL04-01525-00
30 Cowl Pin, Steel WAL05-03243-00
31 Barrel, Aluminum WAL04-01247-00
32 Temperature Stem, Aluminum WAL04-05653-00
33 Pivot Pin, 416 Stainless steel WAL04-03273-00
34 Set Screw Pressure Stem, Steel WAL05-04850-00
35 Lever, Steel
Type T124 WAL04-02758-00
Type T134 WAL04-02760-00
36 Pressure Stem, 416 Stainless steel WAL04-05426-00
37* Diaphragm Screw, Ledloy
Type T124 WAL04-02926-00
Type T134 WAL04-04822-00
38* Pressure Plate, Ledloy (Type T134 only) WAL04-03679-00
39* Diaphragm, 301 Stainless steel WAL04-01623-00
40* Floating Plate, Iron (Type T134 only) WAL04-03710-00
41* Pusher Plate, Ledloy WAL04-03718-00
42* Vacuum Spring,
302 Stainless steel (Type T134 only) WAL05-05055-00
43* Valve Spring, Inconel
Type T124 WAL05-09353-00
Type T134 WAL05-04985-00
44 Body, Cast Iron
Type T124, Cast Iron WAL04-00950-00
Type T134
Cast Iron WAL04-00630-00
Cast Steel WAL04-10439-01
45* Gasket
Graphite WAL05-02378-01
Flexitalic WAL05-11718-00
46* Screen, 301 Stainless steel
Steam Service WAL04-04700-00
Water Service WAL04-04701-00
47* Diaphragm Nut, Ledloy WAL04-02925-00
48 Adjusting Indicator Plate, Aluminum WAL05-03512-00
49 Adjusting Indicator Pointer, Aluminum WAL05-03513-00
Key Description Part Number
*These parts furnished in Repair Kit.
9
Types T124 and T134

'E'
'F'
TYPE T134 SIDE VIEW
FRONT VIEW
Figure 6. Type T124 Assembly
THERMOSTAT ASSEMBLY, VARIES
1/8 NPT
10
Types T124 and T134

COMPOSITION DISK
ADJUSTMENT INDICATOR
Figure 7. Type T124 Options Assembly
11
Types T124 and T134

SD4512B
Emerson Automation Solutions
VCIMD-14980 © 2021 Emerson Electric Co. All rights reserved. 11/21
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Solutions business unit of Emerson Electric Co. The Emerson logo is a
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and while every e󰀨ort 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. All sales are
governed by our terms and conditions, which are available upon request. We
reserve the right to modify or improve the designs or specications of such
products at any time without notice.
Emerson Electric Co. does not assume responsibility for the selection, use
or maintenance of any product. Responsibility for proper selection, use
and maintenance of any Emerson Electric Co. product remains solely with
the purchaser.
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Types T124 and T134
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