Samson 41-23 Series Service manual

Mounting and
Operating Instructions
EB 2512 EN
Translation of original instructions
Edition March 2016
Type 41-23 Pressure Reducing Valve
Self-operated Pressure Regulators
Type41-23 Universal Pressure Reducing Valve

Denition of signal words
DANGER!
Hazardous situations which, if not
avoided, will result in death or seri-
ous injury
WARNING!
Hazardous situations which, if not
avoided, could result in death or seri-
ous injury
NOTICE
Property damage message or mal-
function
Note:
Additional information
Tip:
Recommended action

2 EB 2512 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.
ÎFor the safe and proper use of these instructions, read them carefully and keep them for
later reference.
ÎIf you have any questions about these instructions, contact SAMSON‘s After-sales Service
Department (aftersalesser[email protected]).

Contents
EB 2512 EN 3
1 General safety instructions .............................................................................4
2 Process medium and scope of application .......................................................5
2.1 Transportation and storage.............................................................................5
3 Design and principle of operation ..................................................................5
4 Installation ....................................................................................................6
4.1 Assembly ......................................................................................................6
4.2 Mounting position..........................................................................................8
4.3 Control line, compensation chamber and needle valve......................................9
4.4 Strainer(lter)..............................................................................................10
4.5 Shut-off valve...............................................................................................10
4.6 Pressure gauge ............................................................................................10
5 Operation ...................................................................................................11
5.1 Start-up.......................................................................................................11
5.2 Adjusting the set point..................................................................................11
5.3 Decommissioning.........................................................................................12
6 Cleaning and maintenance .......................................................................... 13
6.1 Replacing the operating diaphragm ..............................................................13
7 Customer inquiries ......................................................................................15
8 Dimensions .................................................................................................15
9 Nameplate ..................................................................................................17
10 Technical data .............................................................................................18

4 EB 2512 EN
General safety instructions
1 General safety instructions
−The regulator is to be mounted, started up or serviced by fully trained and
qualiedpersonnelonly;theacceptedindustrycodesandpracticesareto
be observed. Make sure employees or third persons are not exposed to any
danger.
−All safety instructions and warnings given in these mounting and operating
instructions, particularly those concerning installation, start-up and mainte-
nance, must be strictly 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 dangers due to their specialized training, their
knowledge and experience as well as their knowledge of the applicable
standards.
−The regulators comply with the requirements of the European Pressure Equip-
ment Directive 97/23/EC. Devices with a CE marking have a declaration of
conformity, which includes information about the applied conformity assess-
ment procedure. This declaration of conformity can be provided on request.
−To ensure appropriate use, only use the regulator in applications where the
operatingpressureandtemperaturesdonotexceedthespecicationsused
for sizing the regulator at the ordering stage.
−The manufacturer does not assume any responsibility for damage caused by
external forces or any other external factors.
−Any hazards that could be caused in the regulator by the process medium,
operating pressure or by moving parts are to be prevented by taking appro-
priate precautions.
−Proper transport, storage, installation, operation and maintenance are as-
sumed.

EB 2512 EN 5
Process medium and scope of application
2 Process medium and scope of application
Pressure regulators for set points from 0.05 to 28bar · Valve nominal sizes DN15 to 100
Nominal pressure PN16 to 40 · Suitable for liquids, gases and vapors up to 350°C
The valve closes when the downstream pressure rises.
NOTICE
The Type41-23 Pressure Reducing Valve is not a safety valve. If necessary, a suitable
overpressure protection must be installed on site in the plant section.
2.1 Transportation and storage
The regulator must be carefully handled, transported and stored. Protect the regulator against
adverseinuences,suchasdirt,moistureorfrost,duringstorageandtransportation.
When regulators are too heavy to be lifted by hand, fasten the lifting sling at a suitable place
on the valve body.
NOTICE
Do not attach any lifting equipment, slings or supports to mounting parts, such as the
adjusting screw or control line.
3 Design and principle of operation
See Fig.1 on page7.
TheType41-23PressureReducingValveconsistsofaType2412ClosingValveanda
Type2413Actuator.Thevalveandactuatoraredeliveredseparatelyandmustbeassembled
accordingtotheinstructionsinsection4.1.
The pressure reducing valve is used to maintain the pressure downstream of the valve to an
adjusted set point.
Theprocessmediumowsthroughthevalvebetweenseat(2)andplug(3)inthedirectionin-
dicatedbythearrowonthebody.Thepositionofthevalveplugdeterminestheowrate
and the pressure ratio across the valve. The plug stem is sealed by a frictionless bellows
(5.1).Thedownstreampressurep2istransmittedthroughthecompensationchamber(18)
andcontrolline(17)totheoperatingdiaphragm(12)whereitisconvertedintoapositioning
force. For actuator versions with a bellows, the pressure is transmitted to the operating bel-

6 EB 2512 EN
Installation
lows(12.1).Thepositioningforceisusedto
move the valve plug according to the force of
thepositioningsprings(7).Thespringforce
isadjustableatthesetpointadjuster(6).
Valves with KVS4andhigherfeatureabal-
ancingbellows(4).Theupstreampressure
acts on the outside of the bellows and the
downstream pressure on the inside of the
bellows. As a result, the forces produced by
the upstream and downstream pressures act-
ing on the plug are balanced.
Depending on the valve and actuator used,
the regulator can be upgraded to create a
pressurereducingvalveforlowowrates,a
steam pressure reducing valve or a pressure
reducing valve with increased safety.
4 Installation
4.1 Assembly
See Fig.1 on page7.
Valve and actuator can be assembled before
or after the valve has been installed in the
pipeline.
Pushthediaphragmactuator(10)withactu-
atorstem(11)throughtheholeinthecross-
beam(8)ontothespigotsofthebellows
(5.1).Alignitandfastenwithnuts(width
acrossats16,9)ontothevalveange(ap-
prox.25Nm).
For metal bellows actuators in DN15 to 50,
removethecrossbeam(8)fromthevalve.
Pushtheactuatorstem(11)ontothespigots
ofthebellows(5.1).Alignthepillars(8.1)
andfastenwithnuts(widthacrossats24,
8.2)totheactuator(max.60Nm).
For metal bellows actuators in DN65 to
100,removethecrossbeam(8)fromthe
valveandunscrewthepillars(8.1).Screw
thepillarsintothethreadedholes(8.3)ofthe
actuatorangeasfarastheywillgo.Push
theactuatorwithactuatorstem(11)ontothe
spigotsofthebellows(5.1).Fastenthepillars
withnuts(widthacrossats24,8.2)ontothe
valveange(max.60Nm).
1 Valve body
2 Seat
3 Plug
4 Balancing bellows
5 Plug stem
5.1 Bellows
6 Set point adjuster
7 Positioning springs
8 Crossbeam
8.1 Pillar
8.2 Nuts for pillar
8.3 Threaded holes
9 Fastening nuts
10 Diaphragm actuator
11 Actuator stem
12 Operating diaphragm
12.1 Operating bellows
13 Diaphragm plate
14 Nut
15 Nuts and bolts
16 Control line connection G ¼ (for steam including
screwjointwithrestriction)
17 Control line installed on site (control line kit avail-
able for tapping the pressure directly at the valve
body,seeT2595)
18 Compensation chamber
19 Filler plug
20 Anti-rotation clip

EB 2512 EN 7
Installation
2
3
4
5
6
7
5.1
10
11
12
16
18
19
17
1
8
9
15
20
13 14
12.1
8.2 8.2
8.1
8.2
(25 Nm)
(40 Nm)
8.3
Fig.1: Functional diagram
Table1: Assignment of compensation chamber (18) to
regulator
Actuator area A in
cm²
Item number∙Compensation chamber
DN15 to 50 DN65 to 250
640 1190-8789 1190-8790
320 1190-8788 1190-8789
160/80/40 1190-8788
DN65to100
Type2413 Actuator with metal
bellowsfor2to6bar,5to10bar,
20to28barand10to22bar
DN15to50
Type 2412 Valve
Type2413
Diaphragm Actuator
Item 14: Apply Loctite 272 sealant
(SAMSONorderno.8121-4000)to
the bottom section of thread on the
actuator stem during assembly.
NOTICE: this does not apply to version
for oxygen service or the FDA-
compliant version.

8 EB 2512 EN
Installation
4.2 Mounting position
NOTICE
Protect the regulator from icing up
when controlling media that can
freeze. Remove the regulator from
the pipeline when the plant is shut
down if the regulator is not installed
areas free from frost.
Flush the pipeline thoroughly before install-
ing the regulator to ensure that any sealing
parts, weld spatter and other impurities car-
ried along by the process medium do not im-
pair the proper functioning of the valve,
above all the tight shut-off.
NOTICE
Install a strainer (e.g. SAMSON
Type2) upstream of the regulator.
Install the pressure reducing valve in hori-
zontal pipelines. On installing the valve,
makesurethedirectionofowcorresponds
with the arrow on the body. For media with
a tendency to condensate, install the pipeline
with a slight downward slope on both sides
so that the condensate can drain properly. If
the pipeline upstream and downstream of
the valve run vertically upwards, an auto-
matic water drainage (e.g. SAMSON
Type13ESteamTrap)isrequired.Choosea
place of installation that allows you to freely
access the regulator even after the entire
plant has been completed. The regulator
must be installed free of stress. If necessary,
supportthepipeneartheconnectingang-
es.
Standard mounting position
for gases, liquids and steam
Not for millibar pressure
regulator
(A=1200cm²)
Alternative mounting position
for gases and liquids at medium
temperatureupto80°C
Prescribed mounting position
for millibar pressure regulators
(A=1200cm²)
Not for steam
Not permissible! 1)
1) On request: Permissible for
regulatorswithxedplugstemguide
plus with medium temperature up to
80°C.Notforsteam.
Fig.2: Mounting position
NOTICE
Do not attach supports directly to the
valve or actuator.
If a bypass line is to be used, it must be con-
nected downstream of the pressure tapping
point. Install a shut-off valve in the bypass
line.
Note:
Do not install any instruments (e.g.
temperature regulators or shut-off
valves) that restrict the cross-section
of the pipe between the pressure tap-
ping point and the valve.


EB 2512 EN 9
Installation
4.3 Control line, compensation
chamber and needle valve
Control line · A control line must be provid-
ed at the site of installation, e.g. a
3
/
8
“ pipe
forsteamoran8x1or6x1mmpipefor
air/water.
Connect the control line to the downstream
line (p2)atleastonemeterawayfromthe
valveoutlet(Fig.3.1).Ifamanifoldislocat-
ed downstream of the pressure reducing
valve(Fig.3.2),connectthevalvetothe
manifold, even if it is several meters away. If
the downstream line behind the valve is ex-
tended by a conical expansion piece, con-
nect the control line in the expanded section
of the line. Weld the control line at the side
in the middle of the pipe, inclining at a ratio
of approximately 1:10 up to the compensa-
tion chamber.
Control line kit · A control line kit for tap-
ping pressure directly at the valve body is
available as an accessories part from
SAMSON.
Compensation chamber∙SeeTable1on
page7.Acompensationchamberisre-
quiredforliquidsabove150°Caswellas
for steam.
Fig.3: Examples of installation with steam 3.4 Connection above the middle of the ange
NOTICE
Always install the millibar pressure
regulator upright with the actuator
on top.
3.3 Control line connection below the
middle of the ange
3.2 Control line connection in manifold
3.1 Control line connection Min. pipe
diameter ½“
Additional
condensate
head
12 53 467
1235
6
8
1 Shut-off valve
2 Upstream pressure gauge
3 Strainer
4 Compensation chamber
5 Pressure reducing valve
6 Downstream pressure gauge
7 Shut-off valve
8 Steam trap

10 EB 2512 EN
Installation
The mounting position of the compensation
chamber is indicated by an adhesive label
on the chamber itself as well as by an arrow
and the word "top" stamped on the top of
the chamber.
Thismountingpositionmustbeadheredto;
otherwise the safe functioning of the pressure
reducing valve cannot be guaranteed.
Weld the line coming from the pressure tap-
ping point to the
3
/
8
“ pipe socket on the
chamber. Install the compensation chamber
at the highest point of the pipeline. Conse-
quently, the control line between compensa-
tion chamber and actuator must also be in-
stalled with a downward slope. In this case,
use a
3
/
8
“pipewithscrewttings.
If the control line connection is located below
themiddleofthevalveoutletange,arrange
the compensation chamber at the same level
astheoutletange(Fig.3.3).Inthiscase,
use a pipe which is at least ½“ in size for the
control line from the tapping point to the
compensation chamber.
If the control line is connected above the
middleofthevalveoutletange,installthe
compensation chamber at the same level as
the downstream pressure tapping point
(Fig.3.4).Theadditionalpressureofthe
condensate head must be compensated for
by adjusting the set point to a higher value.
Needle valve · If the regulator tends to hunt,
we recommend installing a needle valve at
thecontrollineconnection(16)inadditionto
the standard SAMSON screw joint with re-
striction.
4.4 Strainer (lter)
Install the strainer (e.g. SAMSON
Type2N/2NI)upstreamofthepressurere-
ducingvalve(seeFig.3).
−Selectastrainer(meshsize)suitablefor
the process medium.
−Thedirectionofowmustcorrespondto
the arrow on the body.
−Thelterelementmustbeinstalledto
hang downwards or sideways for appli-
cations with steam.
−Remember to leave enough space to re-
movethelterelement.
4.5 Shut-off valve
Install a hand-operated shut-off valve both
upstream of the strainer and downstream of
the regulator. This allows the plant to be shut
down for cleaning and maintenance, and
when the plant is not used for longer periods
of time.
4.6 Pressure gauges
Install a pressure gauge both upstream and
downstream of the regulator to monitor the
pressures prevailing in the plant. Install the
pressure gauge on the downstream side be-
hind the downstream pressure tapping point
(not between the tapping point and the
valve).

EB 2512 EN 11
Operation
5 Operation
5.1 Start-up
See Fig.1 on page7.
Cleaning the pipeline
Before start-up, we recommend cleaning the
pipeline with the regulator installed.
−Unscrew the control line.
−SealthevalvebodywithaG¼stopper.
−Check the mesh size of the upstream
strainer to determine the maximum parti-
clesize.Useastrainer(meshsize)suit-
able for the process medium.
If a malfunction occurs in the regulator after
the cleaning process due to clogging up,
proceedasdescribedinTable3onpage
14.
First start up the regulator after mounting all
parts. Make sure the control line is open and
correctly connected.
Fill the plant slowly with the process medium.
Avoid pressure surges. Open the shut-off
valvesrstontheupstreampressureside.
Afterwards, open all the valves on the con-
sumerside(downstreamoftheregulator).
NOTICE
The pressure at the actuator must not
exceed the permissible pressure on
testing the pressure of the plant (see
section10).
Detach the control line and seal the
opening on the valve body with a
G¼ stopper. Alternatively, install a
shut-off valve in the control line.
Make sure that the pressure rises si-
multaneously upstream and down-
stream of the regulator to avoid dam-
aging the balancing bellows.
Do not exceed the maximum permis-
sible pressure (1.5 times the nominal
pressure of the valve body).
Regulation of steam
Unscrewllerplug(19)onthecompensation
chamber. Use the included plastic funnel or a
jugtopourinwateruntilitstartstooverow.
Screwthellerplugbackinandtightenit.
The pressure reducing valve is now ready for
operation. Open the hand-operated shut-off
valves slowly to prevent water hammer.
Regulation of liquids
To start up the pressure reducing valve, open
shut-off valves slowly. For temperatures
above150°C,rstllthecompensation
chamber with the process medium.
5.2 Adjusting the set point
See Fig.1 on page7.
The required downstream pressure is set by
turningthesetpointadjuster(6)usingan
open-endwrench(uptoDN50withwidth
acrossatsSW19andforDN65andlarg-
erwithSW24).Thesetpointofthestainless
steel regulator must be adjusted using the
rod included. Turn clockwise to increase the
downstream pressure and turn counterclock-
wise to reduce it.

12 EB 2512 EN
Operation
The pressure gauge located on the down-
stream pressure side allows the adjusted set
point to be monitored.
An adjustment of the set point can also be
made by turning the set point adjuster until
thedistancex(seeFig.4)isreached.
Fig.4: Set point adjustment with dimension x
Table2liststhesetpointsandtheirassigned
distance x for the regulators and their vari-
ous set point ranges.
Note:
Note that only a rough set point ad-
justment is performed by turning the
set point adjustment until the distance
x is reached. The special properties
of the process medium and plant are
not taken into account in this case.
Check the pressure at the pressure
gauge downstream of the regulator
for a precise set point adjustment.
Table2: Set point adjustment – Dimension x
Set point
range Nominal size DN
8 to 16bar 15 to 25 32 to 50 65 to 100
10bar x=89mm
x=106mm x=133mm
12bar x=97mm
x=117mm x=150mm
14bar
x=104mm x=128mm x=168mm
4.5 to 10bar
Set point
5.9bar x=85mm x=100mm x=131mm
7.3bar x=93mm
x=112mm x=152mm
8.6bar
x=101mm x=123mm x=172mm
2 to 5bar
Set point
2.8bar x=83mm x=97mm x=126mm
3.5bar x=92mm
x=110mm x=170mm
4.3bar
x=100mm x=122mm x=184mm
0.8 to 2.5bar
Set point
1.2bar x=79mm x=92mm x=117mm
1.7bar x=89mm
x=106mm x=142mm
2.1bar x=99mm
x=121mm x=167mm
0.2 to 1.2bar
Set point
0.45bar x=71mm x=81mm x=98mm
0.70bar x=83mm x=98mm x=127mm
1.0bar x=95mm
x=117mm x=157mm
0.1 to 0.6bar
Set point
0.23bar x=71mm x=81mm x=98mm
0.35bar x=83mm x=98mm x=127mm
0.48bar x=95mm
x=115mm x=157mm
0.05 to 0.25bar
Set point
0.10bar x=70mm x=80mm x=92mm
0.15bar x=81mm x=95mm x=116mm
0.20bar x=91mm
x=110mm x=139mm
5.3 Decommissioning
Closersttheshut-offvalveontheupstream
side of the valve and then on the down-
stream side of the valve.
Set point
adjuster(6)

Set point
X

EB 2512 EN 13
Cleaning and maintenance
6 Cleaning and maintenance
See Fig.1 on page7.
The regulator does not require any mainte-
nance. Nevertheless, it is subject to natural
wear, particularly at the seat, plug and oper-
ating diaphragm.
Depending on the operating conditions,
check the regulator at regular intervals to
avoid possible malfunctions. Details on faults
and how to remedy them can be found in
Table3.
WARNING!
Before performing any work on the
regulator, make sure the relevant
plant section has been depressurized
and, depending on the process medi-
um, drained as well. We recommend
removing the valve from the pipeline.
When used at high temperatures, al-
low the plant section to cool down to
ambient temperature.
Disconnect or shut off the control line
to prevent the risk of moving regula-
tor parts. As valves are not free of
cavities, remember that residual pro-
cess medium might still be contained
in the valve.
6.1 Replacing the operating
diaphragm
If the downstream pressure deviates consid-
erably from the set point, check if the dia-
phragm is leaking and, if necessary, replace
it as follows.
−Shut down the plant by slowly closing the
shut-off valves. Depressurize the relevant
section of the pipeline and, if necessary,
drain it as well.
−Unscrewthecontrolline(17)andclean
it.
−Loosenthebolts(15)attheactuatorand
remove the casing.
−Unscrewthenut(14)andliftoffthedia-
phragmplate(13).
−Replacetheoperatingdiaphragm(12)
with a new one.
−Proceed in the reverse order to reassem-
ble the regulator. For start-up, proceed
as described in section 5.1.
Tightenthebolts(15)withmax.tightening
torqueof25Nm.Tightenthenuts(14)with
max.tighteningtorqueof40Nm.Duringas-
sembly, apply Loctite 272 sealant (SAMSON
orderno.8121-4000)tothebottomsection
of thread on the actuator stem during assem-
bly.
NOTICE: this does not apply to version for
oxygen service or the FDA-compliant ver-
sion.
NOTICE
Make absolutely sure that no torque
is applied to the bellows seal (5.1)
during assembly or disassembly.
Otherwise, the metal bellows will be
destroyed. On disassembling the
valve, push the anti-rotation clip (20
in Fig.1) to “entriegelt” (unlock).
Push it back again to “verriegelt”
(lock) on reassembly. See also the
note on the crossbeam (8).

14 EB 2512 EN
Cleaning and maintenance
Table3: Troubleshooting
Malfunction Possible reasons Recommended action
Pressure exceeds the
adjusted set point.
Insufcientpressurepulsesontheop-
erating diaphragm.
Clean the control line and the screw joint with re-
striction.
Seat and plug worn down by deposits
or foreign particles.
Disassemble the regulator and replace damaged
parts.
Pressure tapped at the wrong place. Reconnect control lines at a different place. Do not
tap pressure at pipe bends or necks.
With steam: compensation chamber in
the wrong position or too small.
Reconnect chamber at a different place or replace
it(seeTable1andsection4.3).
Control response too slow. Install larger screw joint at the diaphragm actuator.
Foreign particles blocking the plug Disassemble the regulator and replace damaged
parts.
Pressure drops be-
low the adjusted set
point.
Valveinstalledagainsttheow;see
arrow on body.
Checkdirectionofow.Installvalvecorrectly.
Pressure tapped at the wrong place. Reconnect control line at a different place.
Valve or KVScoefcienttoosmall Check valve sizing. Install larger valve, if neces-
sary.
Control response too slow. Install larger screw joint at the diaphragm actuator.
With steam: compensation chamber in
the wrong position or too small.
Reconnect chamber at a different place or replace
it(seeTable1andsection4.3).
Foreign particles blocking the plug. Disassemble the regulator and replace damaged
parts.
Jerky control
response
Increased friction, e.g. due to foreign
particles between seat and plug.
Remove foreign particles. Replace damaged parts.
Slow control
response
Restriction in the screw joint of the
actuator dirty or too small.
Clean screw joint or install larger screw joint.
Dirt in the control line. Clean the control line.
Downstream
pressure hunts
Valve too large Check valve sizing. Select smaller KVScoefcient,if
necessary.
Restriction in the screw joint of the
actuator too large.
Install smaller screw joint.
Pressure tapped at the wrong place. Select better place for pressure tapping.
Loud noises Highowvelocity,cavitation. Checksizing.Installowdividerwithgasesand
steam.

EB 2512 EN 15
Customer inquiries
7 Customer inquiries
Contact SAMSON's After-sales Service department for support when malfunctions or defects
arise.
E-mail address: [email protected]
The addresses of SAMSON AG, its subsidiaries, representatives and service facilities world-
wide can be found on the SAMSON website (uwww.samson.de),inallSAMSONproduct
catalogs or on the back of these Mounting and Operating Instructions.
To assist diagnosis and in case of an unclear mounting situation, specify the following details:
−Type and nominal size of the valve
−Model number with index
−Upstream and downstream pressure
−Temperature and process medium
−Min.andmax.owrate
−Is a strainer installed?
−Installation drawing showing the exact location of the regulator and all the additionally
installedcomponents(shut-offvalves,pressuregauge,etc.)
8 Dimensions
Fig.5: Dimensions
Type2413
Metal Bellows
Actuator
H
Type 2412 Valve
Type41-23
Universal Pressure
Reducing Valve
Type2413
Diaphragm Actuator
ØD
H
H1
H3
L

16 EB 2512 EN
Customer inquiries
Table4: Dimensions in mm and weights
Pressure reducing valve Type41-23
Valve size DN 15 20 25 32 40 50 65 80 100
Length L 130 150 160 180 200 230 290 310 350
Height H1 335 390 510 525
Height H3 Forged steel 53 – 70 – 92 98 – 128 –
Other materials 55 72 100 120
Standard version with rolling diaphragm
0.05 to
0.25bar
Height H 445 500 620 635
Actuator ØD=380mm,A=640cm²
0.1 to
0.6bar
Height H 445 500 620 635
Actuator ØD=380mm,A=640cm²
0.2 to
1.2bar
Height H 430 480 600 620
Actuator ØD=285mm,A=320cm²
0.8 to
2.5bar
Height H 430 485 605 620
Actuator ØD=225mm,A=160cm²
2 to
5bar
Height H 410 465 585 600
Actuator ØD=170mm,A=80cm²
4.5 to
10bar
Height H 410 465 585 600
Actuator ØD=170mm,A=40cm²
8 to
16bar
Height H 410 465 585 600
Actuator ØD=170mm,A=40cm²
Weight for version with rolling diaphragm
0.05 to
0.6bar Weight,
based on cast
iron 1), approx.
kg
22.5 23.5 29.5 31.5 35 51 58 67
0.2 to
2.5bar 16 18 23.5 25.5 29 45 52 61
2 to
16bar 12 13 18.5 21 24 40 47 56
Special version with metal bellows actuator
2 to
6bar
Height H 550 605 725 740
Actuator A=62cm²
5 to
10bar
Height H 550 605 725 740
Actuator A=62cm²
10 to
22bar
Height H 535 590 710 725
Actuator A=33cm²
20 to
28bar
Height H 535 590 710 725
Actuator A=33cm²
Weight for version with metal bellows actuator
A=33cm² Based on cast
iron1), approx. kg
16.5 17.9 18 23.5 25.5 29 48 56 66
A=62cm² 20.9 21.5 22 27.5 29.5 33 54 65 75
1)+10%forcaststeel,spheroidalgraphiteironandforgedsteel
Set point rangesSet point rangesSet point ranges

EB 2512 EN 17
Nameplate
9 Nameplate
Nameplates are attached to the valve and the actuator.
Valve nameplate
DIN version
ANSI version
Actuator nameplate
Fig.6: Nameplates
SAMSON
DN
Made in Germany
˚C
T
bar
∅p
PN
K
vs
No
No
∅p
Made in Germany
Size SAMSON
psi T˚F Cv Cl
12
910 11
8 7
5
4
1
3
2
9
8
710 11 12
5
4
1
3
2
psi
psi psi
size
cm²
Var.-ID No
SAMSON sq.in
bar bar
DN
Made in Germany
bar
2002
0062
97710
1
3
2
9
4
6
DIN version
1 Valve type
2 Model number with index
3CongurationID(Var.-ID)
4 Order number or date
5 KVS coefcient
7 Spring force
8 Valve size
9 Nominal pressure
10 Perm. differential pressure
11 Perm. temperature
12 Body material
ANSI version
5 Nominal size
7 Spring force
8 Perm. differential pressure
9Perm.temperature(°F)
10 Body material
11 CVcoefcient(KVSx1.17)
12 ANSIClass(pressurerating)
DIN/ANSI version
1Actuatorarea(DIN/ANSI)
2 Type
3CongurationID(Var.-ID)
4 ID number
6 Max. perm. pressure (pexceed)atthe
actuator based on the max.
adjustablesetpoint(DIN/ANSI)
SeeTable6
7Valvesize(DIN/ANSI)
9Setpointrange(DIN/ANSI)
10 Diaphragm material

18 EB 2512 EN
Technical data
10 Technical data
Table5: Technical data · All pressures in bar (gauge)
Valve Type2412
Nominal pressure PN16,25or40
Nominal size DN15to50 DN65to80 DN100
Max. permissible differential
pressure∆p 25bar 20bar 16bar
Max. permissible
temperature See pressure-temperature diagram in uT2500
Valve plug Metalseal:max.350°C·PTFEsoftseal:max.220°C·EPDMorFPM
softseal:max.150°C·NBRsoftseal:max.80°C1)
Leakage class according to
IEC60534-4
Metalseal:leakageclassI(≤0.05%ofKVScoefcient)
Softseal:leakageclassIV(≤0.01%ofKVScoefcient)
Diaphragm actuator Type2413
Set point ranges 0.05to0.25bar·0.1to0.6bar·0.2to1.2bar·0.8to2.5bar3)
2 to 5 bar · 4.5 to 10 bar · 8 to 16 bar
Max. permissible
temperature
Gases350°C,however,max.80°Cattheactuator1)
Liquids150°C,withcompensationchambermax.350°C
Steamwithcompensationchambermax.350°C
Metal bellows actuator Type2413
Effective area 33cm² 62cm²
Set point ranges 10to22bar
20to28bar
2to6bar2)
5to10bar
Set point spring 8000N
1) Withoxygen:max.60°C
2) Setpointspring:4400N
3) Versionwithactuatorwithtwodiaphragms:1to2.5bar

EB 2512 EN 19
Technical data
Table6: Maximum permissible pressure at actuator
Set point range · Actuator with rolling diaphragm
0.05 to
0.25bar
0.1 to
0.6bar
0.2 to
1.2bar
0.8 to
2.5bar 2to5bar 4.5 to 10bar 8to16bar
Max. permissible pressure (pexceed)abovethesetpointadjustedattheactuator
0.6bar 0.6bar 1.3bar 2.5bar 5bar 10bar 10bar
Set point range·Metalbellowsactuator
2to6bar 5to10bar 10to22bar 20to28bar
Max. permissible pressure (pexceed)abovethesetpointadjustedattheactuator
6.5bar 6.5bar 8bar 2bar
The maximum permissible pressure at the actuator depends on the adjusted set point. The
valuespeciedinthetablemustbeaddedtothissetpoint.
Example:
Setpointrange:0.2to1.2bar,adjustedsetpoint:0.8bar
Max. permissible pressure at the actuator:
0.8bar+1.3bar=2.1bar
Note:
Conversion from chromate coating to iridescent passivation
We at SAMSON are converting the surface treatment of passivated steel parts in our
production. As a result, you may receive a device assembled from parts that have
been subjected to different surface treatment methods. This means that the surfaces of
some parts show different reections. Parts can have an iridescent yellow or silver
color. This has no effect on corrosion protection.
For further information go to uwww.samson.de/chrome-en.html


SAMSON AG · MESS- UND REGELTECHNIK
Weismüllerstraße 3 · 60314 Frankfurt am Main, Germany
Phone: [phone] · Fax: [phone]
[email protected] · www.samson.de EB 2512 EN
2016-03-18 · English