EB 2430 EN
Translation of original instructions

Type 2430 Thermostat (adsorption principle)
mounted on a Type 2432 Valve (Type 43-2 Temperature
Regulator)

Type 2430-3 Thermostat (vapor
pressure principle)

Type 2430 Control Thermostat
Series 43 Self-operated Temperature Regulators

Edition July 2024

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 inthese instructions are for illustration purposes only. The actual product may vary.
Î For the safe and proper use of these instructions, read them carefully and keep them forlater reference.
Î If you have any questions about these instructions, contact SAMSON‘s After-sales Service(aftersalesservice@samsongroup.com).

Documents relating to the device, such as the mounting and operating
instructions, are available on our website at www.samsongroup.com >Downloads > Documentation.

Definition of signal words! DANGER
Hazardous situations which, if not avoided,
will result in death or serious injury! WARNING
Hazardous situations which, if not avoided,
could result in death or serious injury! NOTICE
Property damage message or malfunction
Note
Additional information
Tip
Recommended action

EB 2430 EN

Contents

1
1.1
1.2
1.3

Safety instructions and measures.................................................................1-1
Notes on possible severe personal injury.......................................................1-5
Notes on possible personal injury.................................................................1-5
Notes on possible property damage..............................................................1-7

2
2.1
2.2
2.3

Markings on the device...............................................................................2-1
Inscription...................................................................................................2-1
Location of the inscription.............................................................................2-1
Material identification number......................................................................2-2

3
3.1
3.2

Design and principle of operation................................................................3-1
Additional fittings.........................................................................................3-2
Technical data.............................................................................................3-3

4
4.1
4.2
4.3
4.4

Shipment and on-site transport....................................................................4-1
Accepting the delivered goods......................................................................4-1
Removing the packaging from the control thermostat......................................4-1
Transporting and lifting the control thermostat................................................4-1
Storing the control thermostat........................................................................4-2

5
5.1
5.2
5.3
5.4
5.4.1
5.4.2
5.5

Installation..................................................................................................5-1
Installation conditions...................................................................................5-1
Preparation for installation............................................................................5-4
Mounting....................................................................................................5-6
Testing the control thermostat........................................................................5-7
Leakage......................................................................................................5-7
Pressure test.................................................................................................5-8
Insulation....................................................................................................5-8

6
6.1
6.1.1
6.1.2

Start-up......................................................................................................6-1
Start-up and putting the device back into operation........................................6-2
Starting up the plant when vapors and liquids are controlled...........................6-2
Starting up the plant when vapors are controlled............................................6-2

7
7.1

Operation...................................................................................................7-1
Adjusting the temperature set point................................................................7-1

8
8.1
8.2

Malfunctions...............................................................................................8-1
Troubleshooting...........................................................................................8-1
Emergency action........................................................................................8-2

EB 2430 EN

Contents

9
9.1
9.2
9.3
9.4
9.5

Servicing....................................................................................................9-1
Preparing the valve for service work..............................................................9-3
Installing the control thermostat after service work..........................................9-3
Service work...............................................................................................9-3
Replacing the control thermostat....................................................................9-4
Ordering spare parts and operating supplies.................................................9-4

10

Decommissioning......................................................................................10-1

11
11.1

Removal...................................................................................................11-1
Removing the control thermostat..................................................................11-1

12
12.1

Repairs.....................................................................................................12-1
Returning devices to SAMSON...................................................................12-1

13

Disposal....................................................................................................13-1

14

Certificates................................................................................................14-1

15
15.1
15.2
15.3
15.4
15.5

Appendix..................................................................................................15-1
Tightening torques......................................................................................15-1
Tools.........................................................................................................15-1
Lubricants..................................................................................................15-1
Spare parts...............................................................................................15-1
After-sales service......................................................................................15-2

EB 2430 EN

Safety instructions and measures

1 Safety instructions and measures
Intended use
The SAMSON Type 2430 Control Thermostat is a control thermostat that functions according
to the vapor pressure principle or the adsorption principle. It is used in combination with avalve (Series 43 Regulators).
The control thermostat functioning according to the adsorption principle is used for liquids,
gases and steam. The control thermostat functioning according to the vapor pressure principle (Type 2430-3) is used in instantaneous water heaters. The control thermostats are used tocontrol the temperature of a plant in district heating supply networks to an adjusted set point.
The control thermostat is designed to operate under exactly defined conditions (e.g.
operating pressure, temperature etc.). Therefore, operators must ensure that the control
thermostat is only used in operating conditions that meet the specifications used for sizing at
the ordering stage. In case operators intend to use the control thermostat in applications orconditions other than those specified, contact SAMSON.
SAMSON does not assume any liability for damage resulting from the failure to use thedevice for its intended purpose or for damage caused by external forces or any otherexternal factors.
Î Refer to the technical data and inscription on the device for limits and fields of application as well as possible uses.
Reasonably foreseeable misuse
The control thermostat is not suitable for the following applications:− Use outside the limits defined during sizing and by the technical data
− Use outside the limits defined by the additional fittings mounted on the control thermostat
Furthermore, the following activities do not comply with the intended use:
− Use of non-original spare parts− Performing service and repair work not described
Safety features
The Type 2430 Control Thermostat does not have any special safety features.

EB 2430 EN

1-1

Safety instructions and measures

Qualifications of operating personnel
The control thermostat must be mounted, started up and serviced by fully trained and qualified personnel only; the accepted industry codes and practices must be observed. According
to these mounting and operating instructions, trained personnel refers to individuals who areable to judge the work they are assigned to and recognize possible hazards due to their specialized training, their knowledge and experience as well as their knowledge of the applicable standards.
Personal protective equipment
SAMSON recommends 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:
Î Protective clothing, safety gloves and eye protection in applications with hot, cold and/or
corrosive media
Î Wear hearing protection when working near the valve
Î Check with the plant operator for details on further protective equipment.
Revisions and other modifications
Revisions, conversions or other modifications 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. Furthermore, 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 control thermostat by the process medium, theoperating pressure or by moving parts by taking appropriate precautions. Plant operatorsand operating personnel must observe all hazard statements, warnings and caution notes inthese mounting and operating instructions.
Hazards resulting from the special working conditions at the installation site of the control
thermostat must be identified in a risk assessment and prevented through the corresponding
safety instructions drawn up by the operator.
SAMSON also recommends checking the hazards posed by the process medium being used
(e.g. u GESTIS (CLP) hazardous substances database).
Î Observe safety measures for handling the device as well as fire prevention and explosion
protection measures.

1-2

EB 2430 EN

Safety instructions and measures

These mounting and operating instructions cover the standard version of the devices and thestandard mounting parts. Components that differ to those described in this document can be
added or removed. Refer to the mounting and operating instructions of the components notcovered in this document for the safety instructions and measures that need to be observed.
Responsibilities of the operator
Operators are responsible for proper use and compliance with the safety regulations. Operators are obliged to provide these mounting and operating instructions as well as the referenced documents to the operating personnel and to instruct them in proper operation. Furthermore, operators must ensure that operating personnel or third parties are not exposed toany danger.
Operators are additionally responsible for ensuring that the limits for the product defined 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 andtemperatures) 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 aswell as the referenced documents and observe the specified hazard statements, warnings
and caution notes. Furthermore, operating personnel must be familiar with the applicablehealth, safety and accident prevention regulations and comply with them.
Referenced standards, directives and regulations
The control thermostat complies with the requirements of the European Pressure Equipment
Directive 2014/68/EU. Control thermostats with a CE marking have an EU declaration ofconformity, which includes information about the applied conformity assessment procedure.
The EU declaration of conformity is included in the 'Certificates' chapter.
According to the ignition hazard assessment performed in accordance with Clause 5.2 of
ISO 80079-36, the non-electrical control thermostats 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 thescope of Directive 2014/34/EU.
Î For connection to the equipotential bonding system, observe the requirements specified in
Clause 6.4 of EN 60079-14 (VDE 0165-1).

EB 2430 EN

1-3

Safety instructions and measures

Referenced documents
The following documents apply in addition to these mounting and operating instructions:− Mounting and operating instructions fore.g.

Temperature regulators for heating applications (Types 43-1, 43-2,
43-5 and 43-7)

u EB 2171

e.g.

Temperature regulators for cooling applications (Type 43-6)

u EB 2172

e.g.

Temperature regulators for mixing/diverting service (Type 43-3)

u EB 2173

e.g.

Type 43-8 Temperature Regulator with Hydraulic Controller for instantaneous water heaters

u EB 2178− Mounting and operating instructions as well as data sheets for additional fittings(e.g. shut-off valves, pressure gauges etc.).

1-4

EB 2430 EN

Safety instructions and measures

1.1 Notes on possible severe personal injury! DANGER
Risk of bursting in the regulator.
Regulators and pipelines are pressure equipment. Impermissible pressure in the components or improper opening of the regulator or control thermostat can lead to thecomponents bursting.
Î Observe the maximum permissible pressure for the regulator, control thermostat
and plant.
Î Before starting any work on the regulator and control thermostat, depressurize allplant sections affected.
Î Drain the process medium from the plant sections affected.

1.2 Notes on possible personal injury! WARNING
Damage to health relating to the REACH regulation.
If a SAMSON device contains a substance listed as a substance of very high concern
on the candidate list of the REACH regulation, this is indicated on the SAMSON delivery note.
Î Information on the safe use of the part affected. u https://www.samsongroup.
com/en/about-samson/environment-social-governance/material-compliance/reach-regulation/

EB 2430 EN

1-5

Safety instructions and measures

1.2 Notes on possible personal injury! WARNING
Risk of personal injury due to incorrect operation, use or installation as a result of
information on the control thermostat being illegible.
Over time, markings, labels and nameplates on the control thermostat may become
covered with dirt or become illegible in some other way. As a result, hazards may gounnoticed and the necessary instructions not followed. There is a risk of personal
injury.
Î Keep all relevant markings and inscriptions on the device in a constantly legible
state.
Î Immediately renew damaged, missing or incorrect nameplates or labels.
Risk of burn injuries due to hot or cold components and pipelines.
Depending on the process medium, the control thermostat components and pipelines
may get very hot or cold and cause burn injuries.
Î Allow components and pipelines to cool down or warm up to the ambient temperature.
Î Wear protective clothing and safety gloves.
Risk of fire or explosion as a result of hydrocarbons escaping due to leakage in theType 2430-3 Control Thermostat or Type 2403 Safety Temperature Monitor.
A small quantity of a flammable mixture of hydrocarbons is used as the operating medium in the Type 2430-3 Control Thermostat (vapor pressure principle) and theType 2403 Safety Temperature Monitor (STM).
Î Mount the control thermostat and safety temperature monitor in such a way that in
the event any operating medium escapes as a result of leakage, they cannot comeinto contact with hot surfaces, sparks, open flames or other ignition sources.

1-6

EB 2430 EN

Safety instructions and measures

1.3 Notes on possible property damage! NOTICE
Risk of control thermostat damage due to incorrectly attached slings.
Î Do not attach load-bearing slings to the control thermostat.
Risk of leakage and damage to the control thermostat due to over- or under-torquing.
Observe the specified torques when tightening control thermostat components. Excessive tightening torques lead to parts wearing out more quickly. Parts that are too loose
may cause leakage.
Î Observe the specified tightening torques (see the 'Tightening torques' chapter inthe Appendix).
Risk of control thermostat damage due to the use of unsuitable tools.
Certain tools are required to work on the control thermostat.
Î Only use tools approved by SAMSON.
When in doubt, consult SAMSON.
Risk of the process medium being contaminated through the use of unsuitable lubricants and/or contaminated tools and components.
Î Keep the control thermostat components and the tools used free from solvents andgrease.
Î Make sure that only suitable lubricants are used.
Incorrect control due to the formation of ice on the control thermostat.
Medium temperatures below 0 °C may cause ice to form on the control thermostat, depending on the air humidity. This may affect, in particular, the functioning of the plugor control thermostat stem guide.
Î Prevent the formation of ice by taking appropriate precautions (e.g. enclosure,trace heater etc.). The plant operator is responsible for selecting and implementing
appropriate precautions (see the 'Installation' chapter).

EB 2430 EN

1-7

Safety instructions and measures! NOTICE
Risk of irreparable damage to the control thermostat caused by the thermostat components being taken apart.
The control thermostat is an inseparable hydraulic unit consisting of a control thermostat, capillary tube and temperature sensor. If these components are dismantled (e.g.
removal of the capillary tube), the control thermostat will be irreparably damaged andwill no longer be able to fulfill its control task.
Î Do not dismantle the control thermostat.
Î Only perform allowed activities on the control thermostat.
Î Contact SAMSON's After-sales Service before replacing spare parts.

Note
SAMSON's After-sales Service can support you concerning lubricant, tightening torques
and tools approved by SAMSON.

1-8

EB 2430 EN

Markings on the device

2 Markings on the device
The inscription shown was up to date at the time of publication of this document. The inscription on the device may differ from the one shown.

2.1 Inscription

1 Model number
12
3

2 Type designation

7

3 Material number/configuration ID

9

4 Temperature range in °C and °F
8

5 Register number (device function)
6 DIN-tested marking

4

7 Year of manufacture
8 –
6

5

9 CE marking

Fig. 2-1: Inscription on the control thermostat

2.2 Location of the inscription
Location of theinscription
Top view
Type 2430/-3

Fig. 2-2: Location of the inscription on the control thermostat

EB 2430 EN

2-1

Markings on the device

2.3 Material identification
numberSpecifying the configuration ID, you can contact us to find out which material is used. The
material number is included in the inscription(“Material number/configuration ID”,
item 3).
For more details on the inscription, see
Chapter 2.1.

2-2

EB 2430 EN

Design and principle of operation

3 Design and principle of operation
Î See Fig. 3-1
The Type 2430 Control Thermostat with set
point adjuster, capillary tube and temperature sensor is mounted to a valve (Series 43
Regulators). The control thermostat for standard temperature control operates according
to the adsorption principle. The control thermostat for instantaneous water heating operates according to the vapor pressure principle.

Version with safety thermostat
When a Type 2439 or Type 2403 Safety
Thermostat is attached to the control thermostat, this combination functions as a safety
temperature limiter (TR/STL) or a safety temperature monitor (TR/STM).
Details in mounting and operating instructions
u EB 2185 (STL); u EB 2083 (STM).

The temperature of the medium creates apressure in the sensor (19) which is proportional to the measured temperature. Thispressure is transferred through the capillary
tube (10) to the operating element (13) andconverted into a positioning force. The valve
stem is moved by the operating bellows (9)and pin of the operating element (12).
By turning the set point adjuster (8), thepoint of response and the set point arechanged over the spring (7).
The control thermostat operating according
to the adsorption principle is filled with CO2,
whereas the control thermostat operating
according to the vapor pressure principle
contains a hydrocarbon mixture.
Due to their design, control thermostats functioning according to the adsorption principle
can be mounted in any position. The designof vapor pressure thermostats necessitates acertain mounting position of the sensor anduse without thermowell.

EB 2430 EN

3-1

Design and principle of operation

10

15

14

16
18

7

17

8

20
19

9
12
13

Type 2430 Control Thermostat

7
8
9
10
12

Set point springSet point adjuster
Operating bellows
Capillary tube
Pin of operating element

13
14
15
16
17

Sensor (adsorption
principle) (standard)

Operating element
Lead-seal hole
Coupling nut
Screw
Seal with clamping rings

Sensor (vapor pressure
principle)

18 Packing
19 Temperature sensor
20 Thermowell (optional)

Fig. 3-1: Functional diagram of Type 2430 Control Thermostat

3.1 Additional fittings
Thermometer

Insulation

Install a thermometer (4) downstream of theregulator to monitor the temperature prevailing in the plant.

Control thermostats can be insulated to reduce heat energy transfer. Refer to the instructions in the 'Installation' chapter.

3-2

EB 2430 EN

Design and principle of operation

3.2 Technical data
The inscription on the control thermostat includes information on the device version (seethe 'Markings on the device' chapter).
Process medium and scope of application
Temperature regulators for district heating
systems, heat generators, heat exchangers
and other HVAC and industrial applications.
The Type 2430 Control Thermostat is designed to maintain the temperature to theadjusted set point.
− Suitable for liquids, gases and steam− Temperature set points from 0 to
150 °C/32 to 300 °F
Conformity
The Type 2430 Control Thermostat bears theCE mark of conformity.

EB 2430 EN

Noise emissions
SAMSON is unable to make general statements about noise emissions. The noise emissions depend on the regulator version, plantfacilities, process medium and operating
conditions.
Temperature range
Depending on how the Type 2430 Control
Thermostat is configured, it can be used up
to max. 150 °C/300 °F. Permissible ambient
temperature –20 to +80 °C/–4 to +176 °F(see Table 3-1).
Dimensions and weights
Table 3-3 provides a summary of the dimensions and weights. The lengths and heights
in the dimensional drawings are shown on
page 3-6.

3-3

Design and principle of operation

Table 3-1: Technical data · All pressures in bar (gauge)
Type 2430 Control Thermostat
Set point range 1)(continuously adjustable)

DIN

0 to 35 °C · 25 to 70 °C · 40 to 100 °C
50 to 120 °C · 70 to 150 °C

ANSI

32 to 95 °F · 77 to 158 °F · 104 to 212 °F
122 to 248 °F · 158 to 302 °F

Capillary tube

2 m · 5 m 2)/6.56 ft · 16.4 ft 2)

Max. perm. temperature at the sensor

50 K above the adjusted set point

Permissible ambient temperature range–20 to +80 °C 3)/–4 to +176 °F 3)

Perm. pressure at sensor

PN 25/Class 150

Permissible pressure at thermowellPN 40 or 100 2)/Class 300 or 600 2)

Conformity
1)
2)

Further set point ranges on request
Special version

3)

At temperatures below freezing: ice formation may
damage the plant and especially the valve

Table 3-2: Materials · Material number according to DIN EN
Type 2430 Control Thermostat
Set point adjuster

PTFE, glass fiber reinforced

Packing
Temperature
sensor

3-4

EPDM soft seal for water · NBR soft seal for oil
Capillary tube

Copper

Thermowell

Copper or stainless steel 1.4310

EB 2430 EN

Design and principle of operation

Table 3-3: Dimensions in mm and weights in kg
Type 2430 Control
Thermostat

Adsorption principle
DIN

For nominal valve size
Screw gland S
Length

LF and LFa

DN 15 to 25

Vapor pressure principle
ANSI

DIN

DN 32 to 50 ½ NPT to 1 NPT

DN 15 to 50

G½

G¾

½ NPT

G½·G¾

G½·G¾

185 mm

220 mm7.28 inch–

170 mm
–7.48 inch

190 mm · 160 mm

Ø dT

LFt
12 mm

190 mm
19 mm

0.47 inch

–

–

Ø dFa

9.5 mm

16 mm

0.37 inch

–

10 mm

0.47 inch

12 mm

–

Ø dFt

12 mm

Weight of Type 2430 Control Thermostat
Control thermostat(approx.)

0.7 kg/1.5 lb

Thermowell (approx.)

0.2 kg/0.4 lb

EB 2430 EN

3-5

Design and principle of operation

Dimensional drawings
Controlthermostat

ØdTSensor withthermowell(adsorption
principle)

LFt

LFa

LT

S
Î Thermostats for shell-andtube or coaxial heatexchangers for
instantaneous water
heating: sensor with
Ø10x170 mm

Î Thermostats for horizontal
mounting position for plate
heat exchanger in
combination with Type 438 for instantaneous water
ØdFa
ØdFt
heating: sensor
Standard sensor
Sensor forØ12x190 mm orwith stuffing box instantaneous water
Ø12x160 mm
gland
heating (vapor(adsorption
pressure principle)
principle)

Fig. 3-2: Dimensions in mm

3-6

EB 2430 EN

Shipment and on-site transport

4 Shipment and on-site transport
The work described in this chapter is to be
performed only by personnel appropriately
qualified to carry out such tasks.

4.1 Accepting the deliveredgoods

Î Do not open or remove the packaging
until immediately before lifting to install
the control thermostat into the pipeline.
Î Leave the control thermostat in its transport container or on the pallet to transport it on site.
Î Dispose and recycle the packaging in accordance with the local regulations.

After receiving the shipment, proceed as follows:

4.3 Transporting and lifting thecontrol thermostat

1. Check the scope of delivery. Check thatthe specifications on the inscription
match the specifications in the delivery
note. See the 'Markings on the device'chapter for inscription details.

Due to the low service weight, lifting equipment is not required to lift and transport thecontrol thermostat (e.g. to install it into thepipeline).

2. Check the shipment for transportation
damage. Report any damage to
SAMSON and the forwarding agent(refer to delivery note).
3. Determine the weight and dimensions of
the units to be lifted and transported inorder to select the appropriate lifting
equipment and lifting accessories. Referto the transport documents and the 'Design and principle of operation' chapter.

4.2 Removing the packaging
from the control thermostat
The control thermostat is delivered as single
component.

EB 2430 EN

Î Leave the control thermostat in its transport container or on the pallet to transport it.
Î Observe the transport instructions.
Transport instructions
Î Protect the control thermostat against external influences (e.g. impact).
Î Do not damage the corrosion protection(paint, surface coatings). Repair any
damage immediately.
Î Protect the control thermostat against
moisture and dirt.
Î The permissible ambient temperature of
the control thermostat is between –20
and +80 °C/–4 to +175 °F.

4-1

Shipment and on-site transport

4.4 Storing the control
thermostat! NOTICE
Risk of damage to the control thermostat
due to improper storage.
Î Observe the storage instructions.
Î Avoid longer storage periods.
Î Contact SAMSON in case of different
storage conditions or longer storage
times.

Note
We recommend to regularly check the control thermostat and the prevailing storage
conditions during long storage periods.
Tip
SAMSON's After-sales Service can provide
more detailed storage instructions on request.

Storage instructions
Î Protect the control thermostat against external influences (e.g. impact).
Î Secure the control thermostat in thestored position against slipping or tipping over.
Î Do not damage the corrosion protection(paint, surface coatings). Repair any
damage immediately.
Î Protect the control thermostat against
moisture and dirt. Store it at a relative
humidity of less than 75 %. In damp
spaces, prevent condensation. If necessary, use a drying agent or heating.
Î Make sure that the ambient air is free ofacids or other corrosive media.
Î The permissible storage temperature of
the control thermostat is between –20
and +65 °C/–4 to +150 °F.
Î Do not place any objects on the control
thermostat.

4-2

EB 2430 EN

Installation

5 Installation
The work described in this chapter is to be
performed only by personnel appropriately
qualified to carry out such tasks.
Valve and control thermostat can be assembled before or after the valve has been installed in the pipeline. We recommend first
installing the valve without the control thermostat into the pipeline.

5.1 Installation conditionsple) for Type 2430”, “Temperature sensor(vapor pressure principle) for Type 24303” and “Installation with thermowell”.
Î Install the regulator allowing sufficientspace to remove the control thermostat
and valve or to perform service work on
them.

Mounting orientation
For gases and liquids above
80 °C/175 °F and steam

Work position
The work position for the control thermostat
is the front view onto the operating controlson the regulator (including any additional fittings) seen from the position of operating
personnel.
Plant operators must ensure that, after installation of the device, the operating personnel
can perform all necessary work safely andeasily access the device from the work position.
Pipeline routing
Î Observe the recommended inlet and outlet lengths (see the mounting and operating instructions of the corresponding regulator as listed under 'Referenced documents' in the 'Safety instructions andmeasures' chapter).
Î Install the regulator and control thermostat free of stress and with the least
amount of vibrations as possible. Read
information under “Mounting position”,“Temperature sensor (adsorption princi-

EB 2430 EN

Mounting orientation
For gases and liquids at
medium temperature up to
80 °C/175 °F

Fig. 5-1: Mounting position

Mounting position
To ensure that the control thermostat andregulator function properly, proceed as follows:Î The control thermostat can be mounted inany position on the valve when the medium temperature is up to 80 °C/175 °F.
Î At medium temperatures above
80 °C/175 °F and with steam, install thevalve with the control thermostat suspended downward in horizontal pipelines (see Fig. 5-1).

5-1

Installation

Î Contact SAMSON if the mounting position is not as specified above.

Temperature sensor (vapor pressure principle) for Type 2430-3− See Fig. 5-3 and Table 5-1

Temperature sensor (adsorption principle)
for Type 2430
Î See Fig. 5-2 and Table 5-1! NOTICE
Galvanic corrosion due to incorrectly selected materials of the mounting parts.
On installing the sensor or thermowell, only
combine the same kind of materials (e.g.
stainless steel with stainless steel or copper
together with other copper materials).
The temperature sensor (19), even together
with a thermowell (20), can be installed inany position as required. However, makesure its entire length is immersed in the process medium to be controlled. It must be installed in a location where overheating or
considerable idling times cannot occur.
Note
If the sensor is to be used with a thermowell,only use original SAMSON thermowells.
Weld a welding socket with G ½ or G ¾ female thread (to match the screw gland) at
the place of installation.
Î Seal the screw gland of the sensor.

! WARNING
Risk of fire or explosion as a result ofhydrocarbons escaping due to leakage in
the Type 2430-3 Control Thermostat orType 2403 Safety Temperature Monitor.
A small quantity of a flammable mixture ofhydrocarbons is used as the operating medium in the Type 2430-3 Control Thermostat(vapor pressure principle) and theType 2403 Safety Temperature Monitor(STM).
Î Mount the control thermostat and safety
temperature monitor in such a way thatin the event any operating medium escapes as a result of leakage, they cannot
come into contact with hot surfaces,
sparks, open flames or other ignition
sources.
The mounting position of the temperature
sensor (19) depends on the installation situation. The sensor must be immersed in theprocess medium up to the marking on it. It
must be installed in a location where overheating or considerable idling times cannot
occur. Additionally, observe the mounting
position of the sensor (see Fig. 5-3).
Weld a welding socket with G ½ or G ¾ female thread (to match the screw gland) at
the place of installation or screw in a sensor
pocket (when installed in a heat exchanger).
Î Seal the screw gland of the sensor.

5-2

EB 2430 EN

Installation

Installation with thermowell
When a thermowell is used, a welding socket with G 1 female thread must be used.
1. Seal the thermowell into the welding
socket.
2. Insert the sensor and tighten it with theclamping screw.
Note
For temperature regulators with safety temperature limiter (TR/STL), install the sensor of
the limiter near the sensor of the regulator.
Dynamic behavior of Type 2430 andType 2430-3 Control Thermostats

Support and suspension
Note
The plant engineering company is responsible for selecting and implementing a suitablesupport or suspension of the installed regulator with control thermostat and the pipeline.
Depending on the regulator version andmounting position, the regulator and pipeline must be supported or suspended.
! NOTICE
Do not attach supports directly to the regulator or control thermostat.

The dynamics of the regulator are mainly determined by the response of the sensor with
its characteristic time constant. Table 5-1
shows the dynamic behavior of theType 2430 and Type 2430-3 Control Thermostats measured in water.
Capillary tube
Carefully run the capillary tube without
bending or twisting it. Avoid locations withconsiderable ambient temperature fluctuations along the entire length of the tube.
Note
Do not damage or shorten the capillary
tube. Roll up any capillary tube that is not
used. The smallest permissible bending radius is 50 mm.

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5-3

Installation

5.2 Preparation for installation
Before installation, make sure the following
conditions are met:
− The control thermostat is clean.
− The control thermostat is not damaged.
− The data of the control thermostat on theinscription (type designation and temperature range) match the plant conditions (medium temperature etc.). See the'Markings on the device' chapter for inscription details.
− The requested or required additional fittings have been installed or prepared asnecessary before installing the valve andcontrol thermostat (see the 'Design andprinciple of operation' chapter).

Proceed as follows:Î Lay out the necessary material and tools
to have them ready during installationwork.
Î Flush the pipeline before installing theregulator.
The plant operator is responsible forcleaning the pipelines in the plant.
Î Check any mounted thermometers tomake sure they function properly.

Note
The plant operator is responsible for cleaning the pipelines in the plant.

Table 5-1: Dynamic behavior and mounting position of Type 2430 and Type 2430-3
Control ThermostatsType

Principle ofoperation

2430

Adsorption
principle

Time constant [s]Sensor mounting position

Any mounting position possible

Sensor Ø

Without
thermowellWith
thermowell9.5 mm/0.37 in

15

40

16 mm

30

80

Air sensor

8

10 mm/0.39 in

2430-3

1)

Vapor pressure
principle− Horizontal mounting position− Vertical mounting position with:
Sensor tip pointing upwards
orSensor tip pointing downwards

3

– 1)

12 mm/0.47 in

Thermowell not possible

5-4

EB 2430 EN

Installation

5 4
1

2

3

1 Shut-off valve
2 Strainer
Valve with3
control thermostat
4 Thermometer5 Temperature sensor
6 Shut-off valve

6

Fig. 5-2: Installation example: Type 2430 Control Thermostat with Type 2436 Valve (Type 43-6
Regulator) in a cooler_L>↓ View A ↓

_L
>

Ft

2)

Et

A

Screw fitting
Clamping screw

LAt1)
Connecting piecewith temperature
sensor
Installation dimensions of the sensor pocket with heatexchanger
Length1)
2)

LFt≥140 mmLEt≥125 mm 2)

LAt

5 mm 1)Marking indicating
the minimum
immersion depth
Notch indicating themounting position

Marking
indicating themounting position

Plate heat exchanger <130 mm
Plate heat exchanger >130 mm

Fig. 5-3: Installing the Type 2430-3 Control Thermostat (vapor pressure principle)

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5-5

Installation

5.3 Mounting

Installing the control thermostat

The control thermostat is delivered as single
component. The activities listed below arenecessary for installation and before start-upof the regulator with control thermostat.

1. Close the shut-off valves upstream anddownstream of the point where the sensor is installed while the control thermostat is being installed. Drain the process
medium from this pipe section, if necessary.

! NOTICE
Risk of damage to the control thermostat
due to over- or under-torquing.
Observe the specified torques when tightening control thermostat components. Excessive
tightening torques lead to parts wearing out
more quickly.
Î Observe the specified tightening torques(see the 'Tightening torques' chapter inthe Appendix).

2. Fasten the sensor with packing gland or
thermowell in the pipeline. When installed in a heat exchanger, use a sensor
pocket to fasten the sensor with packing
gland.
3. Make sure that the correct gaskets areused.
4. Slowly open the shut-off valves in thepipeline after the control thermostat has
been installed.

! NOTICE
Risk of control thermostat damage due tothe use of unsuitable tools.
Î Only use tools approved by SAMSON(see the 'Tools' chapter in the Appendix).

5-6

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Installation

5.4 Testing the control thermostat
Re!
DANGER
Risk of personal injury due to process medium escaping.
Î Do not start up the regulator and control
thermostat until all parts have been
mounted.
! DANGER
Risk of bursting due to incorrect opening ofpressurized equipment or components.
Regulators and pipelines are pressure equipment that may burst when handled incorrectly. Flying projectile fragments or the release of process medium under pressure cancause serious injury or even death.
Before working on the regulator:
Î Depressurize all plant sections concerned
and the regulator.
Î Drain the process medium from the plant
sections affected as well as from thevalve.
! WARNING
Risk of burn injuries due to hot or very cold
components and pipelines.
Depending on the process medium, the regulator and pipelines may get very hot or coldand cause burn injuries.
Î Wear protective clothing and safety
gloves.

EB 2430 EN

SAMSON control thermostats are delivered
ready for use. To test the functioning of theregulator and control thermostat before startup or putting back the regulator and control
thermostat into operation, perform the following tests:

5.4.1

Leakage

The plant operator is responsible for performing the leak test and selecting the test
method. The leak test must comply with therequirements of the national and international standards that apply at the site of installation.
Tip
SAMSON's After-sales Service can support
you to plan and perform a leak test for yourplant.
1. Slowly open the shut-off valve installed
upstream of the sensor.
2. Apply the required test pressure.
3. Check the screw gland of the sensor orthermowell for leakage.
4. Depressurize the pipeline section where
the sensor is installed.
5. Rework any parts that leak and repeat
the leak test.

5-7

Installation

5.4.2

Pressure test

Note
The plant operator is responsible for
performing the pressure test. SAMSON's
After-sales Service can support you to planand perform a pressure test for your plant.
During the pressure test, make sure the following conditions are met:Î Do not allow the pressure to exceed the
1.5 times the pressure rating of the sensor or thermowell.

5.5 Insulation
To insulate cold systems, SAMSON recommends first filling the plant and carefully rinsing it. The regulator must not yet be insulated
at this stage.
! NOTICE
Risk of regulator damage due to incorrect
insulation.
Î Only insulate the regulator up to the control thermostat for medium temperatures
below 0 °C/32 °F or above
80 °C/175 °F.
1. Start up the plant and adjust the set point(see the 'Start-up' chapter).
2. Shut down the plant again and let it heatup until the condensation water has
dried off.
3. Insulate the regulator and pipes conveying the process medium using insulationmaterial with a water vapor barrier. If an
external control line is to be routed
through the insulation, special care must
be taken with the sealing since slightchanges in shape may occur. The insulation thickness depends on the medium
temperature and the ambient conditions.
50 mm is a typical thickness.

5-8

EB 2430 EN

Start-up

6 Start-up
The work described in this chapter is only tobe performed by personnel appropriately
qualified to carry out such tasks.
Re!
DANGER
Risk of personal injury due to process
medium escaping.
Î Do not start up the regulator and control
thermostat until all parts have been
mounted.
! WARNING
Risk of burn injuries due to hot or cold
components and pipeline.
Control thermostat components and the pipeline may become very hot or cold. Risk ofburn injuries.
Î Allow components and pipelines to cool
down or warm up to the ambient temperature.
Î Wear protective clothing and safety
gloves.

Before start-up or putting the regulator backinto service, make sure the following conditions are met:
− The regulator and control thermostat areproperly installed into the pipeline (seethe 'Installation' chapter).
− The leak and function tests have been
completed successfully (see the 'Testing
the control thermostat' chapter).
− The prevailing conditions in the plant
section concerned meet the control
thermostat sizing requirements (seeinformation under 'Intended use' in the'Safety instructions and measures'
chapter).

! NOTICE
Risk of overheating due to excessive
ambient temperatures or insufficient heatdissipation when components are insulated.
− Do not include the control thermostat in theinsulation of the pipeline.

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6-1

Start-up

6.1 Start-up and putting thedevice back into operation
1. Depending on the field of application,
allow the regulator and control thermostat to cool down or warm up to reachambient temperature before start up.
2. Check the control thermostat to ensure it
functions properly.

6.1.1

Starting up the plant
when vapors andliquids are controlled

1. Open the shut-off valves slowly preferably starting from the upstream pressure
side of the regulator and control thermostat. Afterwards, open all the valves on
the consumer side (downstream of theregulator).
2. Fill the plant slowly with the process medium. Avoid pressure surges.

6.1.2

Starting up the plant
when vapors arecontrolled

1. Completely drain and dry steam lines toprevent water hammering.
2. Slowly allow the steam to enter the plant
to ensure that the pipes and valves warm
up evenly and to avoid excessive flow
velocities.
3. Before the full capacity is reached, drain
off the start-up condensate.
4. Make sure that the air contained in theplant escapes as quickly as possible.
5. Open the shut-off valves slowly preferably starting from the upstream pressure
side of the regulator.
6. Avoid pressure surges.
7. Check the adjusted temperature set pointat the thermometer installed near thetemperature sensor.

3. Make sure that the pressure rises simultaneously upstream and downstream of theregulator and control thermostat to avoid
damaging it.
4. To start up the regulator and control thermostat, open shut-off valves slowly.
5. Check the adjusted temperature set pointat the thermometer installed near thetemperature sensor.

6-2

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Operation

7 Operation
Immediately after completing start-up or
placing the regulator and control thermostat
back into service (see the 'Start-up' chapter),the regulator is ready for use.
! WARNING
Risk of burn injuries due to hot or cold components and pipeline.
Control thermostat components and the pipeline may become very hot or cold. Risk ofburn injuries.
Î Allow components and pipelines to cool
down or warm up to the ambient temperature.
Î Wear protective clothing and safety
gloves.

7.1 Adjusting the temperature
set point
Adjust the required set point by turning theset point adjuster (43) by hand. The adjustment diagrams (see Fig. 7-4) can be used asa guide to find the first approximate value.
Set point adjusterÎ Turn the set point adjuster clockwise ()to reduce the temperature set point.
Î Turn the set point adjuster counterclockwise () to increase the temperature set
point.
The thermometer (4) installed on the downstream side on site allows the adjusted set
point to be monitored.
Note
Control thermostats (adsorption principle):higher set point temperatures can be
adjusted in increments as required. However,to lower the set point temperature, proceed
in steps of 10 to 20 °C/50 to 68 °F. When
doing so, wait for the process medium tocool down before continuing. Watch thethermometer.

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7-1

Operation

Type 2430 (adsorption principle, DIN)
Set point ranges for G ½ to G 1 and
DN 15 to 25 with sensor Ø9.5 mm
70...150

°C
150
140

Set point ranges for DN 32 to 50
with sensor Ø16 mm
70...150

°C
150
140

120

50...120

120

50...120

100

40...100

100

40...100

80

25...70

60
40

0...3520
080

25...70

60
40

0...35

20
0

1

2

3

4 Scale marking 1)

Type 2430 (adsorption principle, ANSI)
Set point ranges for ½ NPT to
1 NPT with sensor Ø0.37 in
158…302

°F
302
284
248

122…248212

104…212

176

77…158

140
104

32…95

68
32

0

1

2

3

4 Scale marking 1)

0

0

1

3

4 Scale marking 1)

Table 7-2: Set point ranges for Type 2430
Control Thermostat (adsorption principle)
Set point change
per turn

Sensor Ø

0 to 35 °C
32 to 95 °F

2.5 °C/36.5 °F

9.5 mm/0.37 in

2 °C

16 mm

25 to 70 °C
77 to 158 °F

3 °C/37.4 °F

9.5 mm/0.37 in

2 °C

16 mm

40 to 100 °C
104 to 212 °F

4 °C/39.2 °F

9.5 mm/0.37 in

3 °C

16 mm

50 to 120 °C
122 to 248 °F

4 °C/39.2 °F

9.5 mm/0.37 in

4.5 °C

16 mm

70 to 150 °C
158 to 302 °F

4.5 °C/40.1 °F

9.5 mm/0.37 in

5 °C

16 mm

Set point range

Fig. 7-4: Adjustment diagrams for Type 2430 Control Thermostat(adsorption principle)

7-2

2

1)

On the thermostat headEB 2430 EN

Operation

Type 2430 (vapor pressure, DIN)
°C Set point
80
75
70
65
60
55
50
45
40
0

55 to 75 °C (special version)
45 to 65 °C

0

1

2

3 3,5 4 Scale marking 1)°C Set point
70
65
60

With Type 43-8
45 to 65 °C

50
45
40
0

0

1

2

3 3,5 4 Scale marking 1)

Fig. 7-5: Adjustment diagrams for Type 2430 Control Thermostat (vapor
pressure principle)

EB 2430 EN

1)

On the thermostat head

7-3

7-4

EB 2430 EN

Malfunctions

8 Malfunctions
8.1 Troubleshooting
To identify the exact cause for the malfunction and to rectify it, the associated valve must also
be taken into account. Full troubleshooting instructions are listed in the corresponding mounting and operating instructions of the regulator (see documents listed under 'Referenced documentation' in the 'Safety instructions and measures' chapter).
Malfunction
Temperature at thesensor exceeds orfalls below the set
point.

Temperature at thesensor fluctuates.

Possible reasons

Recommended action

Sensor installed in the wrong location.

Î Change the mounting position.

Sensor installed incorrectly.

Î Immerse the temperature sensor with its entire
immersion depth in the process medium.
Î Avoid an installation site where idle times orheat buildup can occur.

Control thermostat defectiveÎ Replace the control thermostat.

Sensor installed in the wrong location.

Î Change the mounting position.

Sensor installed incorrectly.

Î Immerse the temperature sensor with its entire
immersion depth in the process medium.
Î Avoid an installation site where idle times orheat buildup can occur.

Time constant is too large for the controlloop.

Î Fill the thermowell with thermal paste or remove the thermowell.
Î Use a sensor with smaller time constant (e.g.
vapor pressure thermostat).

Sensor installed incorrectly.

Î Immerse the temperature sensor with its entire
immersion depth in the process medium.
Î Avoid an installation site where idle times orheat buildup can occur.

Valve seal defective

Î Contact SAMSON's After-sales Service.

Slow control response

Leak between control thermostat and
valve

Note
Contact SAMSON's After-sales Service for malfunctions not listed in the table.

EB 2430 EN

8-1

Malfunctions

The malfunctions listed in Chapter 8.1 arecaused by mechanical faults and incorrect
regulator sizing. In the simplest case, thefunctioning can be restored following therecommended action. Special tools may berequired to rectify the fault.
Exceptional operating and installation conditions may lead to changed situations that
may affect the control response and lead tomalfunctions. For troubleshooting, the conditions, such as installation, process medium,
temperature and pressure conditions, must
be taken into account.
Tip
SAMSON's After-sales Service can support
you in drawing up an inspection and test
plan for your plant.

8.2 Emergency action
Plant operators are responsible for emergency action to be taken in the plant.
We recommend removing the regulator andcontrol thermostat from the pipeline before
repairing it.
In the event of a regulator or control thermostat malfunction:
1. Close the shut-off valves upstream anddownstream of the regulator and control
thermostat to stop the process medium
from flowing through the regulator.
2. Perform troubleshooting (see Chapter 8.1).
3. Rectify those malfunctions that can be
remedied based on the instructions
provided here and in the documents
listed under 'Referenced documentation'in the 'Safety instructions and measures'
chapter. Contact SAMSON's After-sales
Service in all other cases.
Putting the regulator back into operation
after a malfunction
See the 'Start-up' chapter.

8-2

EB 2430 EN

Servicing

9 Servicing
The control thermostat does not require any
maintenance. Nevertheless, it is subject tonatural wear. Depending on the operating
conditions, check the control thermostat at
regular intervals to avoid possible malfunctions. Plant operators are responsible fordrawing up an inspection and test plan. Details on faults and how to remedy them canbe found in the 'Malfunctions' chapter.
The work described in this chapter is only tobe performed by personnel appropriately
qualified to carry out such tasks.

! NOTICE
Risk of control thermostat damage due toexcessively high or low tightening torques.
Observe the specified torques when tightening control thermostat components. Excessive
tightening torques lead to parts wearing out
more quickly. Parts that are too loose may
cause leakage.
Î Observe the specified tightening torques(see 'Tightening torques' in the Appendix).

We recommend removing the regulator andcontrol thermostat from the pipeline before
performing any maintenance or service
work.

! NOTICE
Risk of control thermostat damage due tothe use of unsuitable tools.
Î Only use tools approved by SAMSON(see 'Tools' in the Appendix).

! WARNING
Risk of burn injuries due to hot or cold
components and pipeline.
Control thermostat components and the pipeline may become very hot or cold. Risk ofburn injuries.
Î Allow components and pipelines to cool
down or warm up to the ambient temperature.
Î Wear protective clothing and safety
gloves.

Note
The control thermostat was checked by
SAMSON before it left the factory.
− The product warranty becomes void ifservice or repair work not described inthese instructions is performed without
prior agreement by SAMSON's After-sales
Service.
− Only use original spare parts by
SAMSON, which comply with the original
specifications.
Tip
SAMSON's After-sales Service can support
you in drawing up an inspection and test
plan for your plant.

EB 2430 EN

9-1

Servicing

10

15

14

16
18

7

17

8

20
19

9
12
13

Type 2430 Control Thermostat

7
8
9
10
12

Set point springSet point adjuster
Operating bellows
Capillary tube
Pin of operating element

13
14
15
16
17

Sensor (adsorption
principle) (standard)

Operating element
Lead-seal hole
Coupling nut
Screw
Seal with clamping rings

Sensor (vapor pressure
principle)

18 Screw gland
19 Temperature sensor
20 Thermowell (optional)

Fig. 9-1: Functional diagram of Type 2430 Control Thermostat

9-2

EB 2430 EN

Servicing

9.1 Preparing the valve forservice work
1. Lay out the necessary material and tools
to have them ready for the service work.
2. Put the control thermostat out of operation (see the 'Decommissioning' chapter).
Tip
We recommend removing the regulator andcontrol thermostat from the pipeline before
performing any service work (see the 'Removing the control thermostat from the pipeline' chapter).
The following service work can be performed after preparation is completed:− Replacing the control thermostat (seeChapter 9.4)

EB 2430 EN

9.2 Installing the control
thermostat after service
workÎ Put the control thermostat back into operation (see the 'Start-up' chapter). Make
sure the requirements and conditions forstart-up or putting the device back into
operation are met.

9.3 Service work
Î Before performing any service work,
preparations must be made to the regulator and control thermostat (see Chapter 9.1).
Î After all service work is completed, checkthe regulator and control thermostat before putting them back into operation(see the 'Testing the control thermostat'chapter).

9-3Servicing

9.4 Replacing the control thermostat! NOTICE
Risk of control thermostat damage due toexcessively high or low tightening torques.
Observe the specified torques when tightening control thermostat components. Excessive
tightening torques lead to parts wearing out
more quickly.
Î Observe the specified tightening torques(see 'Tightening torques' in the Appendix).
! NOTICE
Risk of control thermostat damage due tothe use of unsuitable tools.
Only use tools approved by SAMSON (see'Tools' in the Appendix).
Î Refer to Fig. 9-1.
Removing the control thermostat
1. Unscrew the coupling nut (15) from thevalve and remove the control thermostat.
2. Pull the sensor out of the thermowell. In
cases where a thermowell is not used ora sensor pocket is used, unscrew thescrew gland and pull out the sensor.

9-4

Mounting the control thermostat
1. Insert the sensor into the thermowell. In
cases where a thermowell is not used ora sensor pocket is used, insert the sensor
and tighten the screw gland.
2. Fasten the control thermostat on the valve
using the coupling nut (15). Observe thespecified tightening torques (see 'Tightening torques' in the Appendix).

9.5 Ordering spare parts andoperating supplies
Contact your nearest SAMSON subsidiaryor SAMSON's After-sales Service for information on spare parts, lubricants and tools.
Spare parts
There are no spare parts available for thecontrol thermostats.
LubricantsContact SAMSON's After-sales Service formore information on lubricants.
Tools
Contact SAMSON's After-sales Service formore information on tools.

EB 2430 EN

Decommissioning

10 Decommissioning
The work described in this chapter is only tobe performed by personnel appropriately
qualified to carry out such tasks.
! DANGER
Risk of bursting due to incorrect opening ofpressurized equipment or components.
Regulators and pipelines are pressure equipment that may burst when handled incorrectly. Flying projectile fragments or the release of process medium under pressure cancause serious injury or even death.
Before starting any work on the regulator
and control thermostat:Î Depressurize all plant sections concerned
and the regulator.
Î Drain the process medium from all theplant sections affected as well as the regulator.

To decommission the control thermostat forservice work or before removing it, proceed
as follows:
1. Close the shut-off valve (1) installed on
the downstream and upstream side of thesensor if a thermowell is not used.
2. Completely drain the pipelines and regulator.
3. Depressurize the plant.
4. If necessary, allow the pipeline and control thermostat components to cool downor warm up to the ambient temperature.

! WARNING
Risk of burn injuries due to hot or cold components and pipeline.
Control thermostat components and the pipeline may become very hot or cold. Risk ofburn injuries.
Î Allow components and pipelines to cool
down or warm up to the ambient temperature.
Î Wear protective clothing and safety
gloves.

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10-1

10-2

EB 2430 EN

Removal

11 Removal
The work described in this chapter is only tobe performed by personnel appropriately
qualified to carry out such tasks.
! WARNING
Risk of burn injuries due to hot or cold components and pipeline.
Control thermostat components and the pipeline may become very hot or cold. Risk ofburn injuries.
Î Allow components and pipelines to cool
down or warm up to the ambient temperature.
Î Wear protective clothing and safety
gloves.

11.1 Removing the control thermostat
1. Pull the sensor out of the thermowell. In
cases where a thermowell is not used ora sensor pocket is used, unscrew thescrew gland and pull out the sensor.
2. Unscrew the coupling nut (15) from thevalve and remove the control thermostat.

Before removing the valve, make sure thefollowing conditions are met:
− The control thermostat is put out of operation (see the 'Decommissioning' chapter).

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11-1

11-2

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Repairs

12 Repairs
If the control thermostat does not function
properly according to how it was originallyconfigured or does not function at all, it isdefective and must be exchanged.

12.1 Returning devices to
SAMSON
Defective devices can be returned to SAMSON for repair.
Proceed as follows to return devices:

3. Attach the RMA (together with the
Declaration on Decontamination) to theoutside of your shipment so that the
documents are clearly visible.
4. Send the shipment to the address givenon the RMA.
Note
Further information on returned devices andhow they are handled can be found at
u www.samsongroup.com > Service > Aftersales Service.

1. Exceptions apply concerning somespecial device models
u www.samsongroup.com > Service >After-sales Service.
2. Send an e-mail u retouren@
samsongroup.com to register the return
shipment including the following
information:– Type– Article number– Configuration ID– Original order– Completed Declaration on
Contamination, which can be
downloaded from our website atu www.samsongroup.com > Service> After-sales Service.
After checking your registration, we will
send you a return merchandise authorization (RMA).

EB 2430 EN

12-1

12-2

EB 2430 EN

Disposal

13 Disposal
We are registered with theGerman national register for
waste electric equipment (stiftungear) as a producer of electricaland electronic equipment,
WEEE reg. no.: DE 62194439

Î Observe local, national and international refuse regulations.
Î Do not dispose of components, lubricantsand hazardous substances together withyour other household waste.
Note
We can provide you with a recycling
passport according to PAS 1049
on request. Simply e-mail us ataftersalesservice@samsongroup.com giving
details of your company address.
Tip
On request, we can appoint a service provider to dismantle and recycle the product.

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13-1

13-2

EB 2430 EN

Certificates

14 Certificates
The EU declarations of conformity are listed
in the corresponding mounting andoperating instructions (see section'Referenced documents' in the 'Safety
instructions and measures' chapter).

EB 2430 EN

14-1

1

14-2

EB 2430 EN

Appendix

15 Appendix
15.1 Tightening torques
Table 15-1: Tightening torqueComponent
Coupling nut (15)

Width across flats

Nominal size

Tightening torque in Nm

A/F 36All

20

15.2 Tools
SAMSON's After-sales Service can support
you concerning tools approved by SAMSON.

15.3 Lubricants
SAMSON's After-sales Service can support
you concerning lubricants and sealants approved by SAMSON.

15.4 Spare parts
There are no spare parts available for thecontrol thermostats.

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15-1

Appendix

15.5 After-sales service
Contact SAMSON's After-sales Service forsupport concerning service work or whenmalfunctions or defects arise.
E-mail contact
You can reach our after-sales service ataftersalesservice@samsongroup.com.
Addresses of SAMSON AG and its subsidiaries
The addresses of SAMSON, its subsidiaries,
representatives and service facilities
worldwide can be found on our website(u www.samsongroup.com) or in all
SAMSON product catalogs.
Required specifications
Please submit the following details:− Valve type and nominal size
− Type ... Control Thermostat− Model number or material number− Temperature and process medium− Installation drawing showing the exact
location of the regulator, sensor of thecontrol thermostat and all the
additionally installed components (shutoff valves, pressure gauge etc.)

15-2

EB 2430 EN

SAMSON AKTIENGESELLSCHAFT
Weismüllerstraße 3 · 60314 Frankfurt am Main, Germany
Phone: +49 69 4009-0 · Fax: +49 69 4009-1507
samson@samsongroup.com · www.samsongroup.com

2024-09-06 · English

EB 2430 EN