Samson 2432, 2403, 2430 Mounting And Operating Instructions
Mounting and
Operating Instructions
EB 2183 EN
Translation of original instructions
Edition June 2018
Type2432/2430/2403 TR/STM
Self-operated Temperature Regulators
Type 2403 Safety Temperature Monitor
(STM)
2 EB 2183 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.
Î For the safe and proper use of these instructions, read them carefully and keep them for
later reference.
Î If you have any questions about these instructions, contact SAMSON‘s After-sales Service
Department (aftersalesservice@samson.de).
The mounting and operating instructions for the devices are included in
the scope of delivery. The latest documentation is available on our website
(www.samson.de) > Product documentation. You can enter the document
number or type number in the [Find:] eld to look for a document.
Denition 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
Contents
EB 2183 EN 3
1 Safety instructions and measures ...................................................................4
1.1 Notes on possible severe personal injury .........................................................6
1.2 Notes on possible personal injury ...................................................................7
1.3 Notes on possible property damage ................................................................8
2 Markings on the device .................................................................................9
2.1 Material number ............................................................................................9
3 Design and principle of operation ................................................................10
3.1 Technical data .............................................................................................12
3.2 Process medium and scope of application ......................................................12
4 Measures for preparation ............................................................................18
4.1 Unpacking ..................................................................................................18
4.2 Transporting and lifting ................................................................................18
4.3 Storage .......................................................................................................18
4.4 Preparation for installation ............................................................................19
5 Mounting and start-up ................................................................................. 19
5.1 Mounting the safety temperature monitor onto the valve ..................................19
5.2 Additional ttings .........................................................................................20
5.3 Combination with control thermostat ..............................................................20
5.4 Installing the valve into the pipeline ...............................................................21
5.4.1 Installation conditions ...................................................................................21
5.4.2 Installing the temperature sensor ...................................................................21
5.5 Start-up ....................................................................................................... 23
5.5.1 Gases and liquids ........................................................................................23
5.5.2 Steam .........................................................................................................23
6 Operation ...................................................................................................24
6.1 Adjusting the limit temperature ......................................................................24
6.2 Fine adjustment of the limit temperature .........................................................25
7 Servicing.....................................................................................................26
7.1 Preparation for return shipment ..................................................................... 26
8 Malfunctions ...............................................................................................27
9 Decommissioning and disassembly ..............................................................28
9.1 Decommissioning .........................................................................................28
9.2 Disposal ......................................................................................................28
10 Appendix ....................................................................................................29
10.1 After-sales service and spare parts ................................................................29
10.2 Certicates ..................................................................................................29
4 EB 2183 EN
Contents
1 Safety instructions and measures
Intended use
The Type2403 Safety Temperature Monitor (STM) with valve is designed for temperature
monitoring and control of the energy supply to heat generators (e.g. heat exchangers) by
closing the valve. The connection of an additional Type2430 Control Thermostat converts the
safety temperature monitor (STM) into a temperature regulator with safety temperature
monitor (TR/STM).
The devices are designed to operate under exactly dened conditions (e.g. operating
pressure, process medium, temperature). Therefore, operators must ensure that the devices
are only used in operating conditions that meet the specications used for sizing the devices
at the ordering stage. In case operators intend to use the devices in other applications or
conditions than specied, contact SAMSON.
SAMSON does not assume any liability for damage resulting from the failure to use the
device for its intended purpose or for damage caused by external forces or any other
external factors.
Î Refer to the technical data and nameplate for limits and elds of application as well as
possible uses.
Reasonably foreseeable misuse
The devices are not suitable for use outside the limits dened during sizing and by the techni-
cal data. Furthermore, the following activities do not comply with the intended use:
− Use of non-original spare parts
− Performing service and repair work not described in these instructions
Qualications of operating personnel
The devices must be mounted, started up, serviced and repaired by fully trained and
qualied personnel only; the accepted industry codes and practices are to 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 specialized training, their knowledge and experience as well as their
knowledge of the applicable standards.
Personal protective equipment
We recommend checking the hazards posed by the process medium being used (e.g.
uGESTIS (CLP) hazardous substance database).
EB 2183 EN 5
Safety instructions and measures
Î Provide protective equipment (e.g. safety gloves, eye protection) appropriate for the pro-
cess medium used.
Î Wear hearing protection when working near the valve.
Î Check with the plant operator for details on further protective equipment.
Revisions and other modications
Revisions, conversions or other modications 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 device by the process medium, the operating
pressure or by moving parts by taking appropriate precautions. They must observe all hazard statements, warning and caution notes in these mounting and operating instructions, especially for installation, start-up and service work.
We also recommend checking the hazards posed by the process medium being used (e.g.
uGESTIS (CLP) hazardous substance database).
Î Observe safety measures for handling the device as well as re prevention and explosion
protection measures.
Responsibilities of the operator
The operator is responsible for proper operation 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, the operator must ensure that operating personnel or third persons are not exposed to any danger.
Responsibilities of operating personnel
Operating personnel must read and understand these mounting and operating instructions as
well as the referenced documents and observe the specied hazard statements, warnings
and caution notes. Furthermore, the operating personnel must be familiar with the applicable
health, safety and accident prevention regulations and comply with them.
6 EB 2183 EN
Safety instructions and measures
Referenced standards and regulations
The devices comply with the requirements of the European Pressure Equipment Directive
2014/68/EU. Devices 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 Appendix of these instructions (see section10.2).
Non-electric valve versions whose bodies are not lined with an insulating material coating do
not have their own potential ignition source according to the risk assessment stipulated in
EN13463-1:2009, section5.2, even in the rare incident of an operating fault. Therefore,
such valve versions do not fall within the scope of Directive 2014/34/EU.
Î For connection to the equipotential bonding system, observe the requirements specied in
section 6.4 of EN60079-14 (VDE0165 Part 1).
Referenced documentation
The following documents apply in addition to these mounting and operating instructions:
− Mounting and operating instructions for valves, e.g. uEB2171, uEB2172 and
uEB2173
− Mounting and operating instructions for the control thermostats, e.g. uEB2430 and
uEB2430-3
− Mounting and operating instructions for the safety temperature limiter, e.g. uEB2185
1.1 Notes on possible severe personal injury
DANGER
!
Risk of bursting in pressure equipment.
Valves and pipelines are pressure equipment. Improper opening can lead to valve
components bursting.
Î Before starting any work on the valve, depressurize all plant sections concerned as
well as the valve.
Î Drain the process medium from all the plant sections concerned as well as the
valve.
Î Wear personal protective equipment.
EB 2183 EN 7
Safety instructions and measures
1.2 Notes on possible personal injury
WARNING
!
Risk of personal injury due to residual process medium in the valve.
While working on the valve, residual process medium can escape and, depending on
its properties, may lead to personal injury, e.g. (chemical) burns.
Î If possible, drain the process medium from all the plant sections concerned and the
valve.
Î Wear protective clothing, safety gloves and eyewear.
Risk of burn injuries due to hot or cold components and pipelines.
Depending on the process medium, valve components and pipelines may get very hot
or cold and cause burn injuries.
Î Allow components and pipelines to cool down or heat up.
Î Wear 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 indicated on the SAMSON delivery note.
Î Information on safe use of the part affected,
see uhttp://www.samson.de/reach-en.html.
8 EB 2183 EN
Safety instructions and measures
1.3 Notes on possible property damage
NOTICE
!
Risk of irreparable regulator damage caused by the regulator components being
taken apart.
The thermostat, set point adjuster and capillary tube form an inseparable hydraulic
unit. 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 fulll its monitoring
and control task.
Î Do not dismantle the regulator.
Î Only perform allowed activities on the regulator.
Î Contact SAMSON's After-sales Service department before replacing spare parts.
Risk of valve damage due to contamination (e.g. solid particles) in the pipeline.
The plant operator is responsible for cleaning the pipelines in the plant.
Î Flush the pipelines before start-up.
Î Observe the maximum permissible pressure for valve and plant.
Risk of valve damage due to unsuitable medium properties.
The valve is designed for a process medium with dened properties.
Î Only use the process medium specied during sizing.
Risk of leakage and valve damage due to excessively high or low tightening
torques.
Observe the specied torques on tightening valve components.
Excessively tightened torques lead to parts wearing out quicker. Parts that are too loose
may cause leakage.
Î Observe the specied tightening torques.
EB 2183 EN 9
Markings on the device
2 Markings on the device
SAMSON
2750-5
2403
... °C
...°F
STM 60104
1
2
3
Specications on the scaled cap on the adjustment knob to adjust the limit
1 Model number
2 Limit value range in °C and °F
3
Register number (type test
according to DINEN14597)
Specications on the valve
1 Type designation (valve)
2 Conguration ID
3 Date of manufacture
4 K
VS/CV
5 Max. permissible temperature
6 Nominal pressure (valve)
7 Max. permissible differential
pressure ∆p
SAMSON 1
2710 - 2 3
4 5
6 7
Fig.1: Nameplate
2.1 Material number
Specifying the conguration ID, you can contact us to nd out which material is used. The
conguration ID is specied on the nameplate (2, conguration ID). For more details on the
nameplate, see Fig.1.
10 EB 2183 EN
Design and principle of operation
3 Design and principle of oper-
ation
The Type2403 Safety Temperature Monitor
(STM) with a valve operates without auxiliary energy and is designed for extended safety according to DINEN14597. The safety
temperature monitor is used to limit the temperature by closing a SAMSON Series43
Valve connected to the safety thermostat.
The safety temperature monitor mainly
consists of a valve and safety thermostat with
capillary tube (8) and bulb sensor (9).
The connection of an additional Type2430
Control Thermostat (20) converts the safety
temperature monitor (7) into a temperature
regulator with safety temperature monitor
(TR/STM). See Fig.2.
The valve is closed by a spring mechanism
when the temperature reaches the adjusted
limit, when the capillary tube breaks or
when leakage occurs in the sensor system.
The safety temperature monitor works according to the vapor pressure principle. The
temperature of the medium creates a pressure in the temperature sensor (9) which is
proportional to the measured temperature.
This pressure is transferred through the capillary tube (8) to the bellows of the operating
element (10) and converted into a position-
ing force. The force is transferred over the
pin (11) of the operating element to the plug
stem (4) of the valve and the plug (3). The
position of the plug determines the ow rate
of the heat transfer medium across the area
released between the seat (2) and plug.
The safety temperature monitor closes the
valve when the temperature reaches the ad-
justed limit temperature. The safety tempera-
ture monitor resets itself automatically when
the temperature has fallen to a value of ap-
prox. 5K below the adjusted limit tempera-
ture.
Fail-safe position
When the capillary tube ruptures or there is
a leak in the sensor, the spring mechanism
reacts to the reduced system pressure and
the pin of the operating element (11) closes
the valve. The valve cannot be reset. In this
case, the Type2403 Safety Temperature
Monitor must be replaced.
The adjusted limit temperature must have a
minimum temperature difference of 15K to
the set point of the temperature regulator.
Note
Loading...