Samson 43-1 Service manual

Temperature Regulators Series 43

Type 43-1

Type 43-2

Mounting and

operating instructions

EB 2171 EN

Edition August 2003

Type 43-1 ⋅ Version with

female thread

Type 43-2 ⋅ Version with

weld-on fittings

Type 43-2 ⋅ Version with flanged valve body

DN 32 to 50

Fig. 1 ⋅Temperature regulator versions

Contents Page

1. Design and principle of operation 4

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. Trou leshooting 9

6. Dimensions in mm and weights 10

7. Customer inquiries 11

Contents

Typetesting

The Type 43-1 and Type 43-2 Temperature Regulators are typetested accord -

ing to DIN 344 by the German technical surveillance association TÜV.

2EB 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

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 sen -

sor

1.2 Version with safety thermostat

When a Type 2439 K/ 2403 K Safety

Thermostat is attached to the valve or regu-

lator, these versions are used as safety tem-

perature limiters STL or safety temperature

monitors STM

Refer to the mounting and operating instruc-

tions EB 2185 EN for more details

1.3 Version with dou le adapter

and/or manual adjustment

The temperature regulator can be equipped

with a double adapter and/or manual ad-

justment to control a further control vari-

able

Refer to the mounting and operating instruc-

tions EB 2176 EN for more details

Principle of operation:

The temperature regulator functions accord-

ing 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 243 -3 EN.

4EB 2171 EN

Design and principle of operation

Fig. 2 ⋅Sectional drawing

1.1

(20 Nm)

Type 43-2

Type 2432 K Valve

Type 43-1

Type 2431 K Valve (female thread)

Type 2439 K Thermostat

1Valve body

1 1 Connection nut with

gasket and weld-on

fitting

2Seat

3Plug

4Plug stem

5 Valve spring

7 Positioning spring

8 Set point adjuster

9Positioning bellows

10 Capillary tube

12 Pin of operating element

13 Operating element

14 Lead-sealed bore

15 Coupling nut

EB 2171 EN 5

Design and principle of operation

2. Installation

Make sure that the permissible ambient tem-

perature of 80 °C is not exceeded

2.1 Installing the valve

The valve must be installed in a horizontal

pipeline with the thermostat suspended

downwards Other installation positions are

also possible for temperatures lower than

110 °C

The direction of flow must correspond with

the arrow on the valve body

2.1.1 Strainer

Install a strainer (SAMSON Type 1 or

Type 2, refer to Data Sheet T 1010 EN and

1015 EN) upstream of the valve to prevent

any sealing parts, weld spatter or other im-

purities carried along by the process me-

dium from impairing the proper functioning

of the valve, particularly tight shut-off

The filter element of the strainer must be sus -

pended downwards

Make sure sufficient space is left to allow

the filter element to be removed

2.1.2 Additional installation instruc-

tions

We recommend installing a hand-operated

shut-off valve both upstream of the strainer

and downstream of the regulator to be able

to shut down the plant for cleaning and

maintenance, and when the plant is not

used for long periods of time

For checking the adjusted set point, it is ad-

visable to install a thermometer which is sub -

mersed in the controlled medium close to

the sensor

2.2 Installing the temperature sen-

sor

The Type 2430 K Temperature Sensor can

be installed in any position The instructions

of the corresponding mounting and opera-

ting instructions must be observed for the

Type 2430 K-3 Vapor Pressure Sensor The

entire length of the sensor must be immersed

in the medium which is being controlled Se-

lect a point of installation where overheating

and considerable delays cannot occur Weld

in a welding sleeve with G 1/2 or G 3/4 fe-

male thread at the point of installation

Seal the screw gland or thermowell into the

welded-in sleeve Insert the sensor and fix

into place using a clamping screw

Note: To prevent damage caused by corro-

sion, make sure that the same kinds of ma-

terials are used when installing the sensor

or thermowell. For example, do not use a

temperature sensor or thermowell made of

non-ferrous metal in a stainless steel heat ex-

changer. In this case, use a stainless steel

thermowell for the sensor.

Fig. 3 ⋅Example of installation in a water-heated boiler

1123 54

1Shut-off valve

2Strainer

3Temp regulator

4 Thermometer

5 Temperature sensor

6EB 2171 EN

Installation

2.2.1 Capillary tu e

The capillary tube must be run without ben-

ding or twisting it The smallest bending

radius should not be less than 50 mm

Do not damage or shorten the capillary

tube Roll up any excess tube to form a ring

Make sure no considerable temperature fluc-

tuations occur along the entire length of the

tube

3. Operation

3.1 Set point adjustment

Use the black plastic ring (set point adjus-

ter 8) to set the set point while watching

the reference thermometer

The adjustment diagrams are intended to

help you find a rough initial value

Turning the adjuster clockwise results in

a lower temperature and turning it

counterclockwise a higher temperature

The adjusted value can be lead-sealed at

the bore (14) in the set point adjuster

Set point range

°C

Change in set

point per turn

Sensor

diameter

0 to 35 2 5 9 5

216

25 to 70 395

216

40 to 100 495

316

50 to 120 495

4 5 16

70 to 150 4 5 9 5

516

Fig. 4 ⋅Adjustment diagrams

100

120

140

150

01234

70...150

50...120

40...100

25...70

0...35

˚C

100

120

140

150

01234

˚C

70...150

50...120

40...100

25...70

0...35

Tur ns ( sc a le m ar ki ng s)

Set point ranges for DN 15 to 25

with sensor Ø 9 5

Set point ranges for DN 32 to 50

with sensor Ø 16

EB 2171 EN 7

peration

4. Maintenance - Replacing parts

The temperature regulator is maintenance

free Nevertheless, it is subject to natural

wear, particularly at the seat and plug

Depending on the operating conditions, the

regulator needs to be checked at regular in -

tervals to avoid possible malfunctions

If the valve does not shut off tightly, this may

be due to dirt on the seat and plug, or the

valve seat and plug have become untight

due to natural wear

The valve can be removed from the pipeline

to repair it

Note

If you intend carrying out mainten-

ance work on the temperature regu-

lator, first relieve the corresponding

plant section of pressure and, de-

pending on the process medium,

drain it as well.

Let the plant section cool down to

reach ambient temperature, if

necessary.

We recommend removing the regu-

lator from the pipeline.

4.1 Cleaning or replacing the plug

To change the plug section (3), a special

socket wrench is needed:

For DN 15 to 25 Order no 1280-3001,

For DN 32 to 50 Order no 1280-3007

For nominal sizes DN 15 to 25, this wrench

can be made, for example, from a

GEDORE screwdriver bit (IN 19-19) by drill-

ing a hole into the 19 mm hexagon bit as

shown in Fig 5

Note: To replace the seat, a special tool is

additionally required. Refer to the

EB 29 EN (formerly WA 29 EN) for the

product numbers 271 to 273 (also avail-

able on the Internet at http://www.sam-

son.de/pdf_en/e 29 en.pdf).

1 Unscrew the coupling nut (15) and take

the control thermostat off the valve

2 Use the socket wrench to unscrew the

entire plug section

3 Thoroughly clean the seat and plug

If the seat is damaged, use the seat

wrench (EB 029 EN) to replace the

seat

If the plug is damaged, the entire plug

section as well as the seal ring in the

body must be replaced with new ones

4 Proceed in the reverse order to reas-

semble the valve

Insert a new seal ring for the plug sec-

tion in the body

Apply a drop of "Omnifit 222" before

screwing on the plug section (tightening

torque 80 Nm)

Tighten the coupling nut of the thermo-

stat on the valve with 20 Nm

Fig. 5 ⋅Socket wrench

Ø 17

SW 19

19 mm hexagon bit

8EB 2171 EN

Maintenance - Replacing parts

5. Trou leshooting

Pro lem Possi le source Remedy

The value at

the sensor

exceeds or falls

below the set

point

Leakage at the seat and

plug

Remove the valve Clean the seat and plug

Contact SAMSON after-sales service if the

regulator is defective

Valve is too small or too

big for the control task

Recalculate the KVS value and contact

SAMSON

Sensor is installed in the

wrong place

Check whether the entire length of the sensor

is immersed in the medium or whether it is in-

stalled where delays can occur or heat can

accumulate

Safety device, e g STL

or STM has been

triggered

Check the plant and unlock safety device

Insufficient cooling or

warming energy

available

Draw up an energy balance

The value at

the sensor

exceeds the

set point

Thermostat defective Send the thermostat to SAMSON for repair

Strainer is blocked Empty strainer filter and clean it

The medium flows

through the valve in the

opposite direction than

indicated by the arrow

Remove the valve and reinstall it so that the

medium flows through the valve in the

direction indicated by the arrow

Control loop

is unstable

Valve is too big for the

control task

Recalculate KVS value and contact SAMSON

Time constant is too

large for the control

loop

Fill the thermowell with conductive paste, or

remove thermowell or use a sensor with a

smaller time constant

EB 2171 EN 9

Troubleshooting

6. Dimensions in mm and weights

Type 43-1 Nom size G 1/2 3/4 1

Length L 65 75 90

Weight



App kg 1 4 1 5 1 6

Type 43-2 Nom sizeDN152025324050

Pipe Ød 21 3 26 8 33 7 42 48 60

R G 3/4 G 1 G 1 1/4 G 1 3/4 G 2 G 2 1/2

Width across flats SW 303646596582

Length L 65 70 75 100 110 130

L1 with weld-on fittings 210 234 244 268 294 330

Weight



App kg17 2 23445159

Special version with threaded ends (male thread)

Length L2 129 144 159 180 196 228

Male thread A G 1/2 G 3/4 G 1 G 1 1/4 G 1 1/2 G 2

Weight



App kg17 2 23445159

Special version with flanges PN 16/25

Length L3 130 150 160 180 200 230

Weight App kg 3 1 4 4 8 7 6 9 1



Version with flanged valve body

L3  200 230

Weight



App kg  10 13 2



For versions with bulb sensor and thermowell, versions without thermowell: minus 0 2 kg

10 EB 2171 EN

Dimensions in mm and weights

Other manuals for 43-1

This manual suits for next models

Table of contents

Other Samson Controllers manuals

Samson

Samson 3374 Service manual

Samson

Samson EB 2090 User manual

Samson

Samson 3730-4 User manual

Samson

Samson 3381 Series Service manual

Samson

Samson TROVIS 5757-3 Service manual

Samson

Samson 3275A Service manual

Samson

Samson 2422 series Service manual

Samson

Samson TROVIS 5757-7 Service manual

Samson

Samson 3375 Service manual

Samson

Samson 3277-5 Service manual

Samson

Samson Trovis 6493 Service manual

Samson

Samson TROVIS 5433 Service manual

Samson

Samson 3277 Service manual

Samson

Samson TROVIS 5573 Service manual

Samson

Samson 3372 Service manual

Samson

Samson 4765 Service manual

Samson

Samson 2469 Service manual

Samson

Samson 3222/5724 Service manual

Samson

Samson 2371-10 Service manual

Samson

Samson SAM -01 Service manual

Samson

Samson 42-36 Service manual

Samson

Samson 3371 Series Service manual

Samson

Samson 3374 Service manual

Samson

Samson 3277 Service manual

Popular Controllers manuals by other brands

Digiplex

Digiplex DGP-848 Programming guide

YASKAWA

YASKAWA SGM series user manual

Sinope

Sinope Calypso RM3500ZB installation guide

Isimet

Isimet DLA Series Style 2 Installation, Operations, Start-up and Maintenance Instructions

LSIS

LSIS sv-ip5a user manual

Rockwell Automation

Rockwell Automation 1769-L31 installation instructions

Airflow

Airflow Uno hab Installation and operating instructions

ABB

ABB ACS580-01 drives Hardware manual

Panasonic

Panasonic GM1 Series Reference manual

Emerson

Emerson SW93 owner's manual

AutoAqua

AutoAqua Smart ATO micro SATO-120P manual

Panasonic

Panasonic FP? Positioning Unit RTEX Technical manual

Alpha IP

Alpha IP MIOB 21001 manual

Siemens

Siemens OpenAir GMA 1 Series Mounting instructions

Surecom

Surecom SR-629 user manual

Fishman

Fishman TriplePlay installation guide

Regulus

Regulus SRS1 T Installation and operation manual

3M MicroTouch EX113 reference guide