Samson 43-1, 43 Series, 43-2 Mounting And Operating Instructions
Temperature Regulators Series 43
Type 43-1
Type 43-2
Type 43-1 ⋅ Ver sio n w ith
female thread
Temperature regulator versions
Fig. 1
⋅
Type 43-2 ⋅ Ver si on wi th fl ang ed va lv e b od y
DN 32 to 50
Ty pe 4 3- 2 ⋅ Version with
weld-on fittings
Mounting and
operating instructions
EB 2171 EN
Edition August 2003
Contents
Contents Page
1. Design and principle of operation
. . . . . . . . . . . . . . . . . . . . . .
1.1 Temperature regulator . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
1.2 Version with safety thermostat . . . . . . . . . . . . . . . . . . . . . . . . 4
1.3 Version with double adapter and/or manual adustment . . . . . . . . . . . . 4
2. Installation
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2.1 Installing the valve . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2.1.1 Strainer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2.1.2 Additional installation instructions . . . . . . . . . . . . . . . . . . . . . . 6
2.2 Installing the temperature sensor . . . . . . . . . . . . . . . . . . . . . . . 6
2.2.1 Capillary tube . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
3. Operation
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
3.1 Set point adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
4. Maintenance Replacing parts
. . . . . . . . . . . . . . . . . . . . . . . 8
4.1 Cleaning or replacing the plug . . . . . . . . . . . . . . . . . . . . . . . . 8
5. Troubleshooting
6. Dimensions in mm and weights
7. Customer inquiries
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
. . . . . . . . . . . . . . . . . . . . . . . 10
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
4
2
Typetesting
The Type 43-1 and Type 43-2 Temperature Regulators are typetested accord ing to DIN 3440 by the German technical surveillance association TÜV.
Register number available on request
EB 2171 EN
Safety instructions
General safety instructions
The temperature regulators may only be mounted, started up or serviced by
fully trained and qualified personnel, observing the accepted industry codes
and practices. Make sure employees or third persons are not exposed to any
danger.
All safety instructions and warnings in these mounting and operating instruc tions, particularly those concerning assembly, start-up and maintenance, must
be observed.
The control valves fulfil the requirements of the European Pressure Equipment
Directive 97/23/EC. Valves with a CE marking have a declaration of con formity which includes information about the applied conformity assessment
procedure. The declaration can be viewed and downloaded on the Internet at
http://www.samson.de.
For appropriate operation, make sure that the temperature regulators are
only used in areas where the operating pressure and temperatures do not ex ceed the operating values which are based on the valve sizing data submitted
in the order. The manufacturer does not assume any responsibility for dam age caused by external forces or any other external influence!
Any hazards which could be caused in the temperature regulator by the pro cess medium, the operating pressure or by moving parts are to be prevented
by means of the appropriate measures.
Proper shipping and appropriate storage are assumed.
Caution!
Do not start up the temperature regulators before the valve and control
thermostat have been installed.
Prior to removing the regulator from the pipeline, make sure the relevant sec -
tion of the pipeline is depressurized and drained.
Allow the plant to fill up slowly on start-up.
Make sure regulators are frost protected when used to control freezing media.
If the sensor is used in combination with a thermowell, only SAMSON thermo-
wells should be used.
EB 2171 EN
3
Design and principle of operation
1. Design and principle of operation
1.1 Temperature regulator
The temperature regulators consist of a
valve with the Type 2430 K Thermostat
screwed onto it.
The valve consists of a valve body, seat and
a pressure-balanced plug. The thermostat
contains a positioning bellows, set point
spring, capillary tube and temperature sensor.
1.2 Version with safety thermostat
When a Type 2439 K/ 2403 K Safety
Thermostat is attached to the valve or regulator, these versions are used as safety temperature limiters STL or safety temperature
monitors STM.
Refer to the mounting and operating instructions EB 2185 EN for more details.
1.3 Version with double adapter
and/or manual adjustment
The temperature regulator can be equipped
with a double adapter and/or manual adjustment to control a further control variable.
Refer to the mounting and operating instructions EB 2176 EN for more details.
Principle of operation:
The temperature regulator functions according to the adsorption principle. The tempera ture of the medium to be controlled creates
a pressure in the sensor which corresponds
with the temperature measured. This press ure is transferred over the capillary tube
(10) to the operating element (13) where it
is converted into a positioning force.
The force acts over the positioning bellows
(9) and pin of the operating element (12)
on the plug stem and plug (3).
By turning the set point adjuster (8), the
point of response over the spring (7) is
changed. As a result, the valve plug moves
through its full travel range within a higher
or lower temperature range measured by
the sensor.
Note:
Thermostats that function according to the
vapor pressure principle are described in
EB 2430-3 EN.
4
EB 2171 EN
Loading...