Flowserve TRG 5-11 User Manual
GESTRA Steam Systems
TRG 5-11
TRG 5-41
Installation Instructions 818697-00
Temperature Sensor
TRG 5-11, TRG 5-41
1
Contents
Page
Important Notes
Usage for the intended purpose .............................................................................................................4
Safety note ............................................................................................................................................ 4
Danger ...................................................................................................................................................4
PED (Pressure Equipment Directive) ........................................................................................................4
ATEX (Atmosphère Explosible) .................................................................................................................4
Explanatory Notes
Scope of supply ......................................................................................................................................5
Description ........................................................................................................................................... 5
Function ................................................................................................................................................5
System components ..............................................................................................................................5
Design ...................................................................................................................................................5
Technical Data
TRG 5-11, TRG 5-41 ...............................................................................................................................
Corrosion resistance ...............................................................................................................................7
Sizing .....................................................................................................................................................7
Name plate /marking ..............................................................................................................................7
Dimensions ............................................................................................................................................8
Component Parts
TRG 5-11, TRG 5-41 ...............................................................................................................................
Key ....................................................................................................................................................... 10
Installation
TRG 5-11 ..............................................................................................................................................
TRG 5-41 .............................................................................................................................................. 11
Attention .............................................................................................................................................. 11
Note .....................................................................................................................................................11
Tools ....................................................................................................................................................11
Heat treatment of welds .......................................................................................................................11
Examples of installation ........................................................................................................................12
Key ....................................................................................................................................................... 13
Wiring
TRG 5-11, TRG 5-41 ............................................................................................................................. 13
Note .....................................................................................................................................................13
Tools ....................................................................................................................................................13
Wiring diagram .....................................................................................................................................14
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9
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Contents – continued –
Page
Commissioning
Check wiring ........................................................................................................................................15
Apply mains voltage ............................................................................................................................. 15
Measure fluid temperature ...................................................................................................................15
Operation
TRG 5-11, TRG 5-41 ............................................................................................................................. 16
Note .....................................................................................................................................................16
Troubleshooting
Fault-finding list for malfunctions .........................................................................................................16
Maintenance
Spare parts .......................................................................................................................................... 17
Replace sensing element ......................................................................................................................17
Decommissioning
Danger ................................................................................................................................................17
Disposal ...............................................................................................................................................17
Annex
Declaration of Conformity CE ................................................................................................................18
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Important Notes
Usage for the intended purpose
Use temperature sensors TRG 5-11 and TRG 5-41 only in conjunction with temperature switch TRS 5-7
for measuring temperatures.
Safety note
The equipment must only be installed and commissioned by qualified and competent staff.
Retrofitting and maintenance work must only be performed by qualified staff who – through adequate
training – have achieved a recognised level of competence.
Danger
The temperature sensors TRG 5-11 and TRG 5-41 are fixed in vessels or pipes. When
loosening the temperature sensor hot water, steam, gas, corrosive or toxic fluids might
escape. This presents the danger of poisoning or severe scalding and acid burns to the
whole body. Installation and maintenance work should only be carried out when the
system is depressurized! If necessary wear protective clothing.
The temperature sensor becomes hot during operation. This presents the risk of severe
burns to hands and arms.
All installation and maintenance work must only be performed when the system is cold!
PED (Pressure Equipment Directive)
The equipment complies with the requirements of the Pressure Equipment Directive PED 97/23/CE.
TRG 5-11 and TRG 5-41 can be used with fluids of group 2. With CE marking.
ATEX (Atmosphère Explosible)
According to the European Directive 94/9/EC the equipment must not be used in explosion risk areas!
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Explanatory Notes
Scope of supply
TRG 5-11
1 Temperature sensor TRG 5-11, PN 1
1 Installation manual
TRG 5-41
1 Temperature sensor TRG 5-41, PN 160
1 Installation manual
Description
TRG 5-11 and TRG 5-41 are temperature sensors with integral thermocouples to DIN EN 60584.
The temperature sensors work in conjunction with the temperature switch TRS 5-7 and serve as safety
temperature limiters according to DIN 3440/prEN 14597 for signalling excessively high temperatures.
Application in combination with GESTRA safety temperature limiter TRS 5-7 in steam boilers,
(pressurized) hot water plants and furnaces according to DIN 30683 up to 1000 °C , e. g. for limiting
furnace or flue gas temperatures.
Function
The temperature sensors feature an exchangeable temperature sensing element, consisting of two
thermocouples type K (NiCr-Ni, Chromel-alumel) according to DIN IEC 584, class 2. To ensure short
response times the temperature sensors are installed without an additional thermowell. The voltage
generated in the thermocouple as a function of the temperature reading is compared in the safety
temperature limiter with the adjusted switch-off temperature. When the adjusted temperature limit
is exceeded, the follow-up function that has to be provided on site (e. g. a temperature alarm) will be
triggered.
System components
TRS 5-7
Temperature switch TRS 5-7. Two-channel (redundancy) limiter with periodic self-checking routine to
VDE 0116.
Design
TRG 5-11
Temperature sensor with protection tube to DIN IEC 751.
The temperature sensing element B can be removed.
TRG 5-41
Temperature sensor with weld-in protection sleeve to DIN IEC 751.
The temperature sensing element B can be removed.
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Technical Data
TRG 5-11, TRG 5-41
Type approval
DIN · STW (STB) · 986 98S
EG 01 202 931-B-01 000 7
Service pressure
TRG 5-11: 1 bar g (14.5 psi g)
TRG 5-41: 150 bar g (2176 psi g)
Max. service temperature
TRG 5-11: 1000 °C (1832 °F)
TRG 5-41: 650 °C (1202 °F)
Admissible flow velocities
TRG 5-41: in water 5 m/s
in gases 60 m/s
Connections
TRG 5-11: Protection tube (stop flange or screwed socket optional)
TRG 5-41: Protection weld-in tube
Length of sensor
TRG 5-11: 710 mm nominal length
TRG 5-41: 200 mm length of protection tube
Materials
TRG 5-11: Protection tube made of X 10 CrAl 24 (1.4762)
Screwed sockets made of 9 SMnPb 28 (1.0718)
TRG 5-41: Protection weld-in tube made of X 8 CrNiNb 16-13 (1.4961)
Max. admissible ambient temperature at terminal box
120 °C (248 °F)
Protection of terminal box
IP 54
Temperature sensing element
Thermocouple type K (NiCr-Ni) to DIN IEC 584, class 2.
Weight
TRG 5-11: approx. 1.02 kg at nominal length 710 mm
TRG 5-41: approx. 1.1 kg
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