Samson 41-73 Series Service manual

Mounting and
Operating Instructions
EB 2517 EN
Edition July 2015
Self-operated Pressure Regulators
Type41-73 Universal Excess Pressure Valve
Type 41-73 Excess Pressure 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 2517 EN

Contents
EB 2517 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...............................................................................................11
4.6 Pressure gauge ............................................................................................11
5 Operation ...................................................................................................12
5.1 Start-up.......................................................................................................12
5.2 Adjusting the set point..................................................................................12
5.3 Decommissioning.........................................................................................13
6 Cleaning and maintenance ..........................................................................14
6.1 Replacing the operating diaphragm ..............................................................14
7 Nameplate ..................................................................................................16
8 Dimensions .................................................................................................17
9 Customer inquiries ......................................................................................18
10 Technical data .............................................................................................19

4 EB 2517 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 2014/68/EU. Devices with a CE marking have a declaration
of conformity, which includes information about the applied conformity as-
sessment procedure.This declaration of conformity can be provided on re-
quest.
−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 2517 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 opens when the upstream pressure rises.
NOTICE
The Type41-73 Excess Pressure 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beforeitisinstalled.
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41-73ExcessPressureValveconsistsofaType2417Opening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 excess pressure valve is used to maintain the pressure upstream of the valve to an adjust-
ed 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

6 EB 2517 EN
Installation
(5.1).Theupstreampressurep1is transmit-
tedthroughthecompensationchamber(18)
andcontrolline(17)totheoperatingdia-
phragm(12)whereitisconvertedintoapo-
sitioning force. For actuator versions with a
bellows, the pressure is transmitted to the op-
eratingbellows(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 ad-
juster(6).ValveswithKVS4 and higher fea-
tureabalancing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 pro-
duced by the upstream and downstream
pressures acting on the plug are balanced.
Depending on the valve and actuator used,
the regulator can be upgraded to create a
safety excess pressure valve.
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 Set point springs
8 Bracket
8.1 Pillar
8.2 Nuts for pillars
8.3 Tapped holes
9 Fastening nuts
10 Diaphragm actuator
11 Actuator stem
12 Operatingdiaphragm
12.1Operating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 available
for tapping the pressure directly at the valve body,
seeT2595)
18 Compensation chamber
19 Filler plug

EB 2517 EN 7
Installation
1
3
2
5
6
4
7
8
9
5.1
11
12
10
18 19 p1p2
17
16
15
8.2
8.1
8.2
12.1
16
8.2
8.3
Fig.1: Functional diagram
ActuatorforDN65to100
Type2413Actuatorwithmetalbellowsfor2to6bar,5to10bar,10to22barand20to28bar
DN15to50
Type 2417 Valve
Type2413 Diaphragm
Actuator
Pillars turned by
90° in the
drawing
Type41-73Regulator·DN32to100·Withbalancingbellows

8 EB 2517 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 excess pressure valve in horizontal
pipelines.Oninstallingthevalve,makesure
thedirectionofowcorrespondswiththear-
row 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 automatic
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 in-
stalled free of stress. If necessary, support
thepipeneartheconnectinganges.
Standard mounting position
For gases, liquids and steam
Alternative mounting position
For Gases and liquids at medi-
um temperature up to 80°C
Not for steam
Notpermissible1)
1) Installation in this position on
request
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 upstream 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 2517 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 upstream line
(p1)atleastonemeterawayfromthevalve
inlet.
Weld the control line at the side in the mid-
dle of the pipe, inclining at a ratio of ap-
proximately 1:10 up to the compensation
chamber.
Control line kit · A control line kit for tap-
ping pressure directly at the valve body is
available as an accessories part from SAM-
SON.
Compensation chamber(seeTable1)·A
compensation chamber is required for liq-
uidsabove150°Caswellasforsteam.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.
Fig.3: Example of installation with steam
Table1: Assignment of compensation chamber (4) to
regulator
Type2413 Actuator
Actuator area A
Item no.∙Compensation chamber
DN15 to 50 DN65 to 250
640cm² 1190-8789 1190-8790
320cm² 1190-8788 1190-8789
160,80,40cm² 1190-8788
1 Shut-off valve
2 Upstream pressure gauge
3 Strainer
4 Compensation chamber
5 Excess pressure valve
6 Downstream pressure gauge
7 Shut-off valve
1234567

10 EB 2517 EN
Installation
Thismountingpositionmustbeadheredto;
otherwise the safe functioning of the excess
pressure 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inletange,arrange
the compensation chamber at the same level
astheinletange.Inthiscase,useapipe
which is at least ½“ in size for the control
line from the tapping point to the compensa-
tion 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 upstream pressure tapping point. The ad-
ditional pressure of the condensate head
must be compensated for by adjusting the set
point.
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 upstream of the excess
pressurevalve.Thedirectionofowmust
correspondtothearrowonthebody.Thel-
ter element must be installed to hang down-
wards or sideways for applications with
steam. Remember to leave enough space to
remove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 gauge
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 upstream side in front
of the upstream pressure tapping point (not
betweenthetappingpointandthevalve).

EB 2517 EN 11
Operation
5 Operation
5.1 Start-up
See Fig.1 on page7.
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 medi-
um. Avoid pressure surges.
Slowlylltheplant.Makesurethatthepres-
sure rises simultaneously upstream and
downstream of the regulator to avoid dam-
agingthebalancingbellows.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). If necessary, detach the
control line and seal the openings
with end plugs. 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.
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.
−All pipes conveying the process medium
must be completely drained and dry.
−Air and condensate must be allowed to
escape from the plant.
−Allow time for the pipes and valves to
heat up.
Regulation of liquids
To start up the excess pressure valve, open
shut-off valves slowly.
−Fortemperaturesabove150°C,rstll
the compensation chamber with the pro-
cess medium.
5.2 Adjusting the set point
See Fig.1 on page7.
The required upstream 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.
The following generally applies:
−Turn clockwise (tensioningthespring):
to increase the upstream pressure
−Turn counterclockwise (relievingthe
tensiononthespring):toreducetheup-
stream pressure
The pressure gauge located on the upstream
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 is reached.

12 EB 2517 EN
Operation
Fig.4: Set point adjustment with dimension x
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 upstream of the regulator for
a precise set point adjustment.
Table2liststhesetpointsandtheirassigned
distance x for the regulators and their vari-
ous set point ranges.
X
Set point
adjuster(6)

Table2: Set point adjustment – Dimension x
Set point
range
Nominal size DN
Assigned dimension x
8 to 16bar 15 to 25 32 to 50 65 to 100
10bar x=89mm
x=111mm x=153mm
12bar x=97mm
x=122mm x=170mm
14bar x=104mm
x=133mm x=188mm
4.5 to 10bar
Set point
5.9bar x=85mm x=105mm x=151mm
7.3bar x=93mm
x=117mm x=172mm
8.6bar
x=101mm x=123mm x=192mm
2 to 5bar
Set point
2.8bar x=83mm x=102mm x=146mm
3.5bar x=92mm
x=115mm x=168mm
4.3bar
x=100mm x=127mm x=190mm
0.8 to 2.5bar
Set point
1.2bar x=79mm x=97mm x=137mm
1.7bar x=89mm
x=111mm x=162mm
2.1bar x=99mm
x=126mm x=187mm
0.2 to 1.2bar
Set point
0.45bar x=71mm x=86mm x=118mm
0.70bar x=83mm
x=103mm x=147mm
1.0bar x=95mm
x=120mm x=177mm
0.1 to 0.6bar
Set point
0.23bar x=71mm x=86mm x=118mm
0.35bar x=83mm
x=103mm x=147mm
0.48bar x=95mm
x=120mm x=177mm
0.05 to 0.25bar
Set point
0.10bar x=70mm x=85mm x=112mm
0.15bar x=81mm
x=100mm x=136mm
0.20bar x=91mm
x=115mm x=159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

EB 2517 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onpage14.
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.
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.
6.1 Replacing the operating di-
aphragm
If the upstream pressure deviates consider-
ably from the set point, check if the dia-
phragm is leaking and, if necessary, replace
it.
−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.

14 EB 2517 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.
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 re-
sponse.
Increased friction, e.g. due to foreign
particles between seat and plug.
Remove foreign particles. Replace damaged parts.
Slow control re-
sponse.
Restriction in the screw joint of the ac-
tuator dirty or too small.
Clean screw joint or install larger screw joint.
Dirt in the control line. Clean the control line.
Upstream pressure
uctuates
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 2517 EN 15
Nameplate
7 Nameplate
Nameplates are attached to the valve and the actuator.
Valve nameplate
DIN version
ANSI version
Actuator nameplate
Fig.5: 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)
4Ordernumberordate
5KVS coefcient
7 Spring force
8 Valve size
9 Nominal pressure
10 Perm. differential pressure
11 Perm. temperature
12 Body material
ANSI version
5 Valve 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
1Effectivearea(DIN/ANSI)
2 Type
3CongurationID(Var.-ID)
4 ID number
6 Max. perm. pressure (pexceed)
above the set point adjusted at the
actuator(DIN/ANSI)
7Valvesize(DIN/ANSI)
9Setpointrange(DIN/ANSI)
10 Diaphragm material

16 EB 2517 EN
Dimensions
8 Dimensions
Dimensions in mm and weights in kg
Excess pressure valve Type41-73
Nominal 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 55 72 100 120
Standard version with rolling diaphragm
0.05 to
0.25bar
Height H 445 500 620 625
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2)
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
iron1), 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othermaterials·²)Versionwithactuatorwithtwodiaphragms:1to2.5bar
Set point rangesSet point ranges
Set point ranges

EB 2517 EN 17
Customer inquiries
Dimensional drawing
Type 2417 Valve
Type 41-73 Universal Excess
Pressure Valve
Type2413Diaphragm
Actuator
Actuatorwithtwodiaphragms:H+50mm
Fig.6: Dimensions
9 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.)
ØD
H
H1
H3
L
H
Type2413
Actuator with
metal bellows

18 EB 2517 EN
Technical data
10 Technical data
Allpressuresinbar(gauge)
Valve Type2417
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sealing: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)
Compliance ·
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2)
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
Actuator 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 2517 EN 19
Technical data
Max. 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. perm. 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. perm. pressure (pexceed)abovethesetpointadjustedattheactuator
6.5bar 6.5bar 8bar 2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 2517 EN
2015-07-27 · English