Samson EB 2111 Setup guide

Translation of original instructions
EB2111/2121/2123 EN
Type1, Type4 and Type4u Temperature Regulators
Self-operated Regulators
Type1
Type4 Type4u
Edition April 2022

Definition of signal words
Hazardous situations which, if not avoided,
will result in death or serious injury
Hazardous situations which, if not avoided,
could result in death or serious injury
Property damage message or malfunction
Additional information
Recommended action
DANGER
!
WARNING
!
NOTICE
!
Note
Tip
EB2111/2121/2123 EN
Note on these mounting and operating instructions
These mounting and operating instructions assist you in mounting and operating the device
safely. The instructions are binding for handling SAMSON devices. The images shown in
these instructions are for illustration purposes only. The actual product may vary.
ÎFor the safe and proper use of these instructions, read them carefully and keep them for
later reference.
ÎIf you have any questions about these instructions, contact SAMSON‘s After-sales Service
([e-mail]).
The mounting and operating instructions for the devices are included
in the scope of delivery. The latest documentation is available on our
website at www.samsongroup.com > Service & Support > Downloads >
Documentation.

Contents
EB2111/2121/2123 EN
1 Safety instructions and measures ................................................................1-1
1.1 Notes on possible severe personal injury ......................................................1-5
1.2 Notes on possible personal injury ................................................................1-5
1.3 Notes on possible property damage.............................................................1-7
2 Markings on the device ..............................................................................2-1
2.1 Valve nameplate .........................................................................................2-1
2.2 Nameplate of the control thermostat .............................................................2-2
2.3 Location of the nameplates ..........................................................................2-2
2.4 Materialidenticationnumber .....................................................................2-2
2.4.1 Type2111andType2422Valve .................................................................2-2
2.4.2 Types2231to2235ControlThermostat .......................................................2-2
3 Design and principle of operation ...............................................................3-1
3.1 Accessories ................................................................................................3-3
3.2 Additionalttings........................................................................................3-5
3.3 Technical data ............................................................................................3-6
4 Shipment and on-site transport ...................................................................4-1
4.1 Accepting the delivered goods .....................................................................4-1
4.2 Removing the packaging from the regulator ..................................................4-1
4.3 Transporting and lifting the regulator............................................................4-2
4.3.1 Transporting the regulator............................................................................4-2
4.3.2 Lifting the regulator.....................................................................................4-3
4.4 Storing the regulator ...................................................................................4-4
5 Installation .................................................................................................5-1
5.1 Installation conditions..................................................................................5-1
5.2 Preparation for installation...........................................................................5-4
5.3 Installation..................................................................................................5-4
5.4 Installing the regulator.................................................................................5-6
5.4.1 Installing the valve.......................................................................................5-6
5.4.2 Installing the control thermostat ....................................................................5-7
5.4.3 Installing the reversing device.......................................................................5-7
5.5 Cleaningthepipeline ..................................................................................5-8
5.6 Testing the regulator....................................................................................5-8
5.6.1 Leak test.....................................................................................................5-9
5.6.2 Pressure test..............................................................................................5-10
5.6.3 Filling the plant.........................................................................................5-11
5.7 Insulation .................................................................................................5-11
5.8 Mounting accessories ................................................................................5-11

Contents
EB2111/2121/2123 EN
6 Start-up .....................................................................................................6-1
6.1 Start-up and putting the device back into operation .......................................6-2
6.2 Starting up the plant when vapors and liquids are controlled..........................6-2
6.3 Starting up the plant when vapors are controlled...........................................6-2
7 Operation ..................................................................................................7-1
7.1 Adjusting the temperature set point...............................................................7-1
7.2 Correctingthesetpointdial .........................................................................7-2
7.3 Excess temperature safeguard of the thermostat.............................................7-2
8 Malfunctions ..............................................................................................8-1
8.1 Troubleshooting ..........................................................................................8-1
8.2 Emergency action .......................................................................................8-5
9 Servicing....................................................................................................9-1
9.1 Preparing the valve for service work.............................................................9-4
9.2 Installing the regulator after service work ......................................................9-4
9.3 Service work...............................................................................................9-5
9.4 Replacing the control thermostat...................................................................9-5
9.5 Replacing the seat and plug.........................................................................9-6
9.6 Ordering spare parts and operating supplies ................................................9-6
10 Decommissioning .....................................................................................10-1
11 Removal ..................................................................................................11-1
11.1 Removing the control thermostat.................................................................11-1
11.2 Removing the regulator from the pipeline....................................................11-1
12 Repairs ....................................................................................................12-1
12.1 Returning devices to SAMSON ..................................................................12-1
13 Disposal ...................................................................................................13-1
14 Certicates ...............................................................................................14-1
15 Annex......................................................................................................15-1
15.1 Tightening torques.....................................................................................15-1
15.2 Lubricant..................................................................................................15-1
15.3 Tools ........................................................................................................15-1
15.4 Accessories ..............................................................................................15-1
15.5 Spare parts ..............................................................................................15-2
15.5.1 Valve .......................................................................................................15-2
15.5.2 Controlthermostat.....................................................................................15-4
15.6 After-sales service.....................................................................................15-4

EB2111/2121/2123 EN 1-1
Safety instructions and measures
1 Safety instructions and measures
Intended use
TheSAMSONType1,Type4andType4uRegulatorsaretemperatureregulators.Theycon-
sistofaType2111orType2422ValveandaType2231,Type2232,Type2233,
Type2234orType2235ControlThermostat.Theseregulatorcomponentsaredeliveredsep-
arately.
The self-operated regulators are used to control the temperature in plants. Liquids, gases and
vapors in district heating system, extended heating systems or industrial plants can be con-
trolled by the regulators.
Theregulatorsaredesignedtooperateunderexactlydenedconditions(e.g.operatingpres-
sure, process medium, temperature). Therefore, operators must ensure that the regulators are
onlyusedinoperatingconditionsthatmeetthespecicationsusedforsizingthedevicesat
the ordering stage. In case operators intend to use the regulators in applications or condi-
tionsotherthanthosespecied,contactSAMSON.
SAMSON does not assume any liability for damage resulting from the failure to use the de-
vice for its intended purpose or for damage caused by external forces or any other external
factors.
ÎRefertothetechnicaldataandnameplateforlimitsandeldsofapplicationaswellas
possible uses.
Reasonably foreseeable misuse
The regulators are not suitable for the following applications:
−Useoutsidethelimitsdenedduringsizingandbythetechnicaldata
−Useoutsidethelimitsdenedbytheadditionalttingsmountedontheregulator
Furthermore, the following activities do not comply with the intended use:
−Use of non-original spare parts
−Performing service and repair work not described
Qualications of operating personnel
The regulator must be mounted, started up, serviced and repaired by fully trained and quali-
edpersonnelonly;theacceptedindustrycodesandpracticesmustbeobserved.According
to these mounting and operating instructions, trained personnel refers to individuals who are
abletojudgetheworktheyareassignedtoandrecognizepossiblehazardsduetotheirspe-
cializedtraining,theirknowledgeandexperienceaswellastheirknowledgeoftheapplica-
ble standards.

1-2 EB2111/2121/2123 EN
Safety instructions and measures
Personal protective equipment
Werecommendcheckingthehazardsposedbytheprocessmediumbeingused(e.g.
uGESTIS(CLP)hazardoussubstancesdatabase). Depending on the process medium and/
or the activity, the protective equipment required includes:
−Protective clothing, safety gloves and eye protection in applications with hot, cold and/or
corrosive media
−Wear hearing protection when working near the valve
−Hard hat
−Safety harness when working at height
−Safety footwear, ESD (electrostatic discharge) footwear, if necessary
ÎCheckwiththeplantoperatorfordetailsonfurtherprotectiveequipment.
Revisions and other modications
Revisions,conversionsorothermodicationsoftheproductarenotauthorizedbySAMSON.
Theyareperformedattheuser'sownriskandmayleadtosafetyhazards,forexample.Fur-
thermore, the product may no longer meet the requirements for its intended use.
Warning against residual hazards
To avoid personal injury or property damage, plant operators and operating personnel must
preventhazardsthatcouldbecausedintheregulatorbytheprocessmedium,theoperating
pressure or by moving parts by taking appropriate precautions. Plant operators and operat-
ingpersonnelmustobserveallhazardstatements,warningandcautionnotesinthese
mounting and operating instructions.
Hazardsresultingfromthespecialworkingconditionsattheinstallationsiteoftheregulator
mustbeidentiedinariskassessmentandpreventedthroughthecorrespondingsafetyin-
structions drawn up by the operator.
Wealsorecommendcheckingthehazardsposedbytheprocessmediumbeingused(e.g.
uGESTIS(CLP)hazardoussubstancesdatabase).
ÎObservesafetymeasuresforhandlingthedeviceaswellasrepreventionandexplosion
protection measures.
These mounting and operating instructions deals with the standard version of the device.
Componentsofthedevicethatdiffertothoseusedforthestandardversiondescribedinthis
documentcanbeexchangedwithothercertainSAMSONcomponents.Theresidualhazards
of these components are described in the associated mounting and operating instructions
(see documents listed under 'Referenced documentation').

EB2111/2121/2123 EN 1-3
Safety instructions and measures
Safety features
TheType1,Type4andType4uRegulatorsdonothaveanyspecialsafetyfeatures.When
relievedofpressure,theType1andType4Regulatorsareopenedbytheforceoftheset
pointsprings.Whenrelievedofpressure,theType4uRegulatorisclosedbytheforceofthe
set point springs in the reversing device.
Responsibilities of the operator
Operators are responsible for proper use and compliance with the safety regulations. Opera-
tors are obliged to provide these mounting and operating instructions as well as the refer-
enced documents to the operating personnel and to instruct them in proper operation. Fur-
thermore, operators must ensure that operating personnel or third parties are not exposed to
any danger.
Operatorsareadditionallyresponsibleforensuringthatthelimitsfortheproductdenedin
the technical data are observed. This also applies to the start-up and shutdown procedures.
Start-up and shutdown procedures fall within the scope of the operator's duties and, as such,
are not part of these mounting and operating instructions. SAMSON is unable to make any
statements about these procedures since the operative details (e.g. differential pressures and
temperatures) vary in each individual case and are only known to the operator.
Responsibilities of operating personnel
Operating personnel must read and understand these mounting and operating instructions as
wellasthereferenceddocumentsandobservethespeciedhazardstatements,warnings
and caution notes. Furthermore, operating personnel must be familiar with the applicable
health, safety and accident prevention regulations and comply with them.
Referenced standards, directives and regulations
The regulators comply with the requirements of the European Pressure Equipment Directive
2014/68/EU.RegulatorswithaCEmarkinghaveanEUdeclarationofconformity,which
includes information about the applied conformity assessment procedure. This EU declaration
ofconformityisincludedinthe'Certicates'section.
AccordingtotheignitionhazardassessmentperformedinaccordancewithClause5.2of
ISO80079-36,thenon-electricalregulatorsdonothavetheirownpotentialignitionsource
even in the rare incident of an operating fault. As a result, they do not fall within the scope of
Directive 2014/34/EU.
ÎForconnectiontotheequipotentialbondingsystem,observetherequirementsspeciedin
Clause6.4ofEN60079-14(VDE0165-1).

1-4 EB2111/2121/2123 EN
Safety instructions and measures
Referenced documentation
The following documents apply in addition to these mounting and operating instructions:
−Mounting and operating instructions for
e.g. Type2231 and Type2232 Control Thermostats (bulb sensors)
Type2233, Type2234 and Type2235 Air Sensors uEB2231
e.g. Type 2213 Safety Temperature Monitor (STM) uEB2043
e.g. Safety temperature limiters (STL) with Type2212 Safety
Thermostat uEB2046
e.g. Type2N or NI Strainer uEB1015
−Data sheets for
e.g. Double adapter Do2, Do2S·Manual adjuster Ma, MaS
for temperature, differential pressure and ow regulators uT2036
e.g. Typetested safety devices Type1/…, 4/…, 9/… uT2040
e.g. Type 2213 Safety Temperature Monitor (STM) uT2043
e.g. Safety temperature limiters (STL) with Type2212 Safety
Thermostat uT2046
e.g. Type2N or NI Strainer uT1015
−Mountingandoperatinginstructionsaswellasdatasheetsforadditionalttings
(e.g. shut-off valves, pressure gauges etc.).

EB2111/2121/2123 EN 1-5
Safety instructions and measures
1.1 Notes on possible severe personal injury
DANGER
!
Risk of bursting in pressure equipment.
Regulators and pipelines are pressure equipment. Impermissible pressure or improper
opening can lead to regulator components bursting.
ÎObserve the maximum permissible pressure for regulator and plant.
ÎIf necessary, a suitable overpressure protection must be installed on site in the plant
section.
ÎBeforestartinganyworkontheregulator,depressurizeallplantsectionsaffected
as well as the regulator.
ÎDrain the process medium from all the plant sections affected as well as the regula-
tor.
ÎWear personal protective equipment.
1.2 Notes on possible personal injury
WARNING
!
Risk of personal injury through incorrect operation, use or installation as a result of
information on the regulator being illegible.
Over time, markings, labels and nameplates on the regulator may become covered
withdirtorbecomeillegibleinsomeotherway.Asaresult,hazardsmaygounno-
ticed and the necessary instructions not followed. There is a risk of personal injury.
ÎKeep all relevant markings and inscriptions on the device in a constantly legible
state.
ÎImmediately renew damaged, missing or incorrect nameplates or labels.

1-6 EB2111/2121/2123 EN
Safety instructions and measures
WARNING
!
Risk of hearing loss or deafness due to loud noise.
The noise emissions depend on the valve version, plant facilities and process medium.
ÎWear hearing protection when working near the valve. Follow the instructions giv-
en by the plant operator.
Risk of personal injury due to pressurized components and process medium being
discharged.
Incorrect opening of pressure equipment or mounting parts may lead to the process
medium escaping to the atmosphere.
ÎDonotloosenthecontrolthermostatwhilethevalveispressurized.
ÎDo not start up the regulator until all parts have been mounted.
Risk of burn injuries due to hot or cold components and pipelines.
Depending on the process medium, regulator components and pipelines may get very
hot or cold and cause burn injuries.
ÎAllow components and pipelines to cool down or warm up to the ambient tempera-
ture.
ÎWear protective clothing and safety gloves.
Damage to health relating to the REACH regulation.
If a SAMSON device contains a substance which is listed as being a substance of very
highconcernonthecandidatelistoftheREACHregulation,thiscircumstanceisindi-
cated on the SAMSON delivery note.
ÎInformation on safe use of the part affected uwww.samsongroup.com/en/
about-samson/material-compliance/reach-regulation/.
Risk of personal injury due to residual process medium in the regulator.
While working on the regulator, residual process medium can escape and, depending
on its properties, may lead to personal injury, e.g. (chemical) burns.
ÎIf possible, drain the process medium from all the plant sections affected and the
regulator.
ÎWear protective clothing, safety gloves and eye protection.

EB2111/2121/2123 EN 1-7
Safety instructions and measures
1.3 Notes on possible property damage
NOTICE
!
Risk of regulator damage due to incorrectly attached slings.
ÎDo not attach load-bearing slings to the control thermostat (see information under
'Lifting the regulator' in the 'Shipment and on-site transport' section).
Risk of regulator damage due to unsuitable medium properties.
Theregulatorisdesignedforaprocessmediumwithdenedproperties.
ÎOnlyusetheprocessmediumspeciedforsizingtheequipment.
Risk of regulator damage due to contamination (e.g. solid particles) in the pipeline.
The plant operator is responsible for cleaning the pipelines in the plant.
ÎFlush the pipelines before start-up.
Risk of regulator damage due to the use of unsuitable lubricants.
The lubricants to be used depend on the regulator material. Unsuitable lubricants may
corrode and damage surfaces.
ÎOnly use lubricants approved by SAMSON.
When in doubt, consult SAMSON.
Risk of leakage and regulator damage due to excessively high or low tightening
torques.
Observethespeciedtorqueswhentighteningregulatorcomponents.Excessivetight-
ening torques lead to parts wearing out more quickly. Parts that are too loose may
cause leakage.
ÎObservethespeciedtighteningtorques(see'Tighteningtorques'inAnnex).
Risk of regulator damage due to the use of unsuitable tools.
Certaintoolsarerequiredtoworkontheregulator.
ÎOnly use tools approved by SAMSON.
When in doubt, consult SAMSON.

1-8 EB2111/2121/2123 EN
Safety instructions and measures
NOTICE
!
Risk of the process medium being contaminated through the use of unsuitable lubri-
cants and/or contaminated tools and components.
ÎKeep the regulator and the tools used free from solvents and grease.
ÎMake sure that only suitable lubricants are used.
Risk of excess pressure damaging plant sections due to construction-related seat
leakage through the regulator.
ÎAlways install a safety device (e.g. safety excess pressure valve or safety relief
valve) in the plant.
Risk of irreparable regulator damage caused by the regulator components being
taken apart.
The control thermostat is an inseparable hydraulic unit consisting of a control thermo-
stat, capillary tube and temperature sensor. If these components are dismantled (e.g.
removal of the capillary tube), the regulator will be irreparably damaged and will no
longerbeabletofulllitscontroltask.
ÎDo not dismantle the regulator.
ÎOnly perform allowed activities on the regulator.
ÎContactSAMSON'sAfter-salesServicebeforereplacingspareparts.
SAMSON's After-sales Service can support you concerning lubricant, tightening torques
and tools approved by SAMSON.
Note

EB2111/2121/2123 EN 2-1
Markings on the device
2 Markings on the device
Severalnameplatesareafxedtothedevice.Thenameplatesareusedtoidentifythesepa-
rateregulatorcomponents(seesection2.1).
2.1 Valve nameplate
Nameplates of Type2111 and Type2422 Valves
DIN version
2314 5
11109876
ANSI version
2314 5
11109876
ANSI version · DIN version
1 Valve type
2 Model number with index
3 Material no.
4 Order number or date
5 KVS/CV
6 Unassigned
7Valvesize
8 Pressure rating
9 Perm. differential pressure
10 Perm. temperature
11 Body material
Fig.2-1: Nameplate for Type2111 and Type2422 Valves

2-2 EB2111/2121/2123 EN
Markings on the device
2.2 Nameplate of the control
thermostat
SAMSON
x
Gr. DN Made in Germany
bar
°C
bar
°C
123
5
67 8
4
1 Type
2 Material no.
3 Date
4 Limit
5 TÜV or DIN number
6Size
7Valvesize
8 Pressure or temperature range
Fig.2-2: Nameplate of the Type2231 to
Type2235 Control Thermostats
2.3 Location of the nameplates
Location of the
nameplate on the
regulator
components
Fig.2-3: Nameplate of the Type2111 or
Type2422 Valve and Type2231 to
Type2235 Control Thermostats
2.4 Material identication
number
2.4.1 Type2111 and
Type2422 Valve
See the nameplate (11 for DIN/ANSI ver-
sion, body material) for the material used.
For more details on the nameplate, see sec-
tion2.1.
2.4.2 Types2231 to 2235
Control Thermostat
Specifying the material number, you can
contactustondoutwhichmaterialisused.
Thisisspeciedonthenameplateinthe
'MNo.'eld(2).Formoredetailsonthe
nameplate,seesection2.1.

EB2111/2121/2123 EN 3-1
Design and principle of operation
3 Design and principle of oper-
ation
ÎSee Fig.3-1
Type1/Type4: the valve closes as the medi-
um temperature rises and when the tempera-
ture rises above the adjusted set point.
Type4u: the valve opens as the medium tem-
perature rises and when the temperature ris-
es above the adjusted set point.
The temperature regulators consist of the
valve (1), thermostat (temperature sensor)
(19) and capillary tube (11).
The valve mainly consists of the body with
seat (2), plug (3) and plug stem (5). Depend-
ing on the application, different thermostats
can be attached to the valve.
The thermostat comprises the temperature
sensor (19), set point adjuster (12.2), capil-
lary tube (11) and operating element (8).
The temperature regulators operate accord-
ing to the liquid expansion principle. When,
for example the temperature at the tempera-
ture sensor (19) increases, the liquid con-
tained in the sensor expands, causing the pin
(9) of the operating element to be pushed up-
ward by the bellows (10). During this pro-
cess, the pin pushes the plug stem (5) togeth-
er with the plug (3) towards the valve seat as
the temperature at the sensor continues to
rise until the valve is fully closed.
The Type1 Temperature Regulator is
equipped with an unbalanced valve. In con-
trast, Type4 has a valve balanced by a met-
al bellows (4.1).
In this case, the upstream pressure is trans-
ferred through the hole in the plug stem to
the outer surface of the bellows and the
downstream pressure to the inside of the bel-
lows.
As a result, the forces acting on the plug are
balanced out and the valve is fully balanced.
Consequently,anypressurechangesinthe
process medium do not affect the position of
the valve plug.
The Type4u Temperature Regulator acts in
the reverse direction and is used in plants for
cooling. Its principle of operation is reverse
to that of the standard version, i.e. the valve
opens when the temperature at the sensor
rises. To achieve this, a reversing device is
installed between the valve and the operat-
ingelementinType4u.
The set point can be adjusted at the set point
adjuster (12.2) using the key (12.1). By turn-
ing the key, a spindle moves the piston (18)
up or down. The resulting change in volume
in the sensor (19) causes the valve plug to
travel according to the adjusted set point
within a higher or lower temperature range
measured by the sensor.
Version with safety thermostat
WhenaType2212orType2213Safety
Thermostat is attached to the valve or the
regulator, this combination functions as a
safety temperature limiter (TR/STL) or a safe-
ty temperature monitor (TR/STM).
Details in mounting and operating instruc-
tions
uEB2046(STL);uEB2043 (STM).

3-2 EB2111/2121/2123 EN
Design and principle of operation
Type1 with Type2111 Valve Flanged valve body 1.0619, 1.4408
Flanged valve body EN-GJS-400-18-LT,
EN-GJL-250
3
4
5
7
8
10
6
9
2
1
-
13
11 19
15
18
14
16
17
12.1
12.2
Type2231
Thermostat
(bulb sen-
sor)
2
3
5
1
6
5.1
7
Type4/Type4u with Type2422 Valve
Type4u with reversing device
Flanged valve body EN-GJL-250,
EN-GJS-400-18-LT, 1.0619, 1.4408
1
2
3
4
9
7
8
6
5
4.1
Fig.3-1: Functional diagram

EB2111/2121/2123 EN 3-3
Design and principle of operation
3.1 Accessories
ÎSee Fig.3-2
Version with double adapter
The temperature regulator can be equipped
with a double adapter to connect an addi-
tional control thermostat to control a further
control variable.
See Data Sheet uT2036.
Version with handwheel
For the manual operation of the valve. The
manual adjuster can either be attached di-
rectly to the valve or at the double adapter
instead of a control thermostat.
See Data Sheet uT2036.
Extension piece
An extension piece is installed between valve
and thermostat to protect the operating ele-
ment against high temperatures.
Type1:DN15to50for220°Candhigher;
withType2212STL/Type2213STM:with
valve made of spheroidal graphite iron and
castironfor150°Candhigher.
Type 4:DN15to100for220°Candhigh-
er,DN125to250for220°Candhigher
already mounted to the valve, up to max.
350°C.
Separating piece
Mounted between the operating element and
valve. It protects the operating element
againstoverallpressuresabove16bar.In
stainless steel regulators, it separates the op-
erating element made free of non-ferrous
metals from the medium in the valve. In ad-
dition, it prevents the medium from escaping
on removing the thermostat.
Version A1:thespindle(2)isttedwith
O-rings and seals the operating element
against the process medium.
Version A2: a metal bellows is used as a
sealing element.
The Type1, Type4 and Type4u Regulators
are not safety valves. If necessary, a suitable
overpressure protection must be installed on
site in the plant section.
Table 3-1: Design of Type1 and Type4
Temperature
regulator
Valve Thermostat
Type1 Type2111
Type2231to
Type2235
Type4 Type2422
Type4u Type2422with
reversing device
Note
1 Valve body
2 Seat
3 Plug
4 Bottom section
4.1 Balancing bellows
5 Plug stem
5.1 Spring
6Threaded connection for
operating element
7Couplingnut
8 Operating element
9 Pin of operating element
10 Operating bellows
11 Capillarytube
12.1 Set point adjustment key
12.2 Set point adjuster
13 Set point dial
14 Spindle
15 Excess temperature protection
16 Couplingnut
17 Double nipple
18 Piston
19 Thermostat with bulb sensor

3-4 EB2111/2121/2123 EN
Design and principle of operation
Extension piece Separating piece Double adapter Reversing device
A1 with seals 1
3
4
1
3
4
5
6
7
8
2
A2 with bellows
2
1 Valve
2 Spindle
3 Stem
4 Lever
5 Wooden bolt
6 Washer
7Couplingnut
8 Spring
Fig.3-2: Accessories · Type1, Type4 and Type4u
Sensor installation
124.1 6 4.2 5
Correct Correct
Heat exchanger
Partly
permissible Incorrect
1 Shut-off valve
2 Strainer
4.1 Valve (temperature regulator)
4.2 Controlthermostat(temperatureregulator)
5 Thermometer
6 Shut-off valve
Fig.3-3: Type1 or Type4 (installation example) · Mounting position of the temperature sensor

EB2111/2121/2123 EN 3-5
Design and principle of operation
3.2 Additional ttings
ÎSee Fig.3-3
Strainers
We recommend installing a SAMSON
strainer (2) upstream of the valve. It prevents
solid particles in the process medium from
damaging the regulator.
ÎDo not use the strainer to permanently
ltertheprocessmedium.
ÎSelectastrainer(meshsize)suitablefor
the process medium.
Any impurities carried along by the process
medium may impair the proper functioning
of the regulator. We recommend installing a
strainer (e.g. SAMSON Type2NI) upstream
of the temperature regulator (uEB1015).
Thermometer
Install a thermometer (3 and 5) at suitable
points to monitor the temperatures prevailing
in the plant.
Bypass and shut-off valves
We recommend installing a shut-off valve (1
and 6) both upstream of the strainer and
downstream of the regulator and installing a
bypass line. The bypass ensures that the
plant does not need to be shut down for ser-
vice and repair work on the regulator.
Note
Insulation
Regulators can be insulated to reduce heat
energy transfer.
Refer to the instructions in the 'Installation'
section.

3-6 EB2111/2121/2123 EN
Design and principle of operation
Leakage class
The metal-seated regulator has the leakage
classIaccordingtoIEC60534-4.
The soft-seated regulator has the leakage
classIVaccordingtoIEC60534-4.
Temperature range
Dependingonhowtheregulatoriscong-
ured, it can be used up to temperatures of
350°C/660°F(seeTable 3-2). The mini-
mum temperature is limited by the accesso-
ries used and the actuator's diaphragm ma-
terial (uT2121 and uT2123).
Noise emissions
SAMSON is unable to make general state-
ments about noise emissions. The noise emis-
sions depend on the regulator version, plant
facilities, process medium and operating
conditions.
Dimensions and weights
Table 3-7 to Table 3-9 provide an overview
of the dimensions and weights. The lengths
and heights in the dimensional drawings are
shownonpages3-12 and 3-13.
3.3 Technical data
The valve and actuator nameplates provide
information on the valve and actuator ver-
sions (see the 'Markings on the device' sec-
tion).
More information is available in Data Sheets
uT2111, uT2121 and uT2123.
Process medium and scope of application
The temperature regulators are designed to
maintain the temperature to the adjusted set
point.
−For liquids, gases and vapors
−Max. temperature 350°C/175°F
−Set points from –10 to +250°C/15 to
480°F
−ValvesizesDN15 to 150/NPS½ to 6
−Pressure ratings PN40 to 40/Class150
to 300
TheType1andType4Regulatorsareopen
when relieved of pressure. The valve closes
when the temperature rises.
TheType4uRegulatorisclosedwhenre-
lieved of pressure. The valve opens when the
temperature rises.
Conformity
TheType1,Type4andType4uRegulators
bearboththeCEandEACmarksofconfor-
mity.
Note