Samson 42-36 Service manual

Translation of original instructions
EB 3015 EN
Type42-36 Flow Regulator
Self-operated Regulators
Edition October 2023

Definition of signal words
Hazardous situations which, if not avoided,
will result in death or serious injury
Hazardous situations which, if not avoided,
could result in death or serious injury
Property damage message or malfunction
Additional information
Recommended action
DANGER
!
WARNING
!
NOTICE
!
Note
Tip
EB 3015 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. The images shown in
these instructions are for illustration purposes only. The actual product may vary.
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
([e-mail]).
The mounting and operating instructions for the devices are included
in the scope of delivery. The latest documentation is available on our
website at www.samsongroup.com > Service & Support > Downloads >
Documentation.

Contents
EB 3015 EN
1 Safety instructions and measures ................................................................1-1
1.1 Notes on possible severe personal injury ......................................................1-4
1.2 Notes on possible personal injury ................................................................1-5
1.3 Notes on possible property damage.............................................................1-7
2 Markings on the device ..............................................................................2-1
2.1 Nameplates................................................................................................2-1
2.2 Location of the nameplates ..........................................................................2-2
2.3 Materialidenticationnumber .....................................................................2-2
2.3.1 Type2423Valve.........................................................................................2-2
2.3.2 Type2426Actuator ....................................................................................2-2
3 Design and principle of operation ...............................................................3-1
3.1 Additionalttings........................................................................................3-4
3.2 Technical data ............................................................................................3-5
4 Shipment and on-site transport ...................................................................4-1
4.1 Accepting the delivered goods .....................................................................4-1
4.2 Removing the packaging from the regulator ..................................................4-1
4.3 Transporting and lifting the regulator............................................................4-2
4.3.1 Transporting the regulator............................................................................4-2
4.3.2 Lifting the regulator .....................................................................................4-3
4.4 Storing the regulator ...................................................................................4-4
5 Installation.................................................................................................5-1
5.1 Installation conditions..................................................................................5-1
5.2 Preparation for installation...........................................................................5-3
5.3 Installation..................................................................................................5-5
5.3.1 Installing the regulator.................................................................................5-6
5.4 Testing the regulator ....................................................................................5-7
5.4.1 Leakage .....................................................................................................5-7
5.4.2 Pressure test................................................................................................5-8
5.4.3 Filling the plant...........................................................................................5-9
5.4.4 Cleaning the pipeline ..................................................................................5-9
5.5 Insulation .................................................................................................5-10
6 Start-up .....................................................................................................6-1
6.1 Start-upandputtingthedevicebackintooperation .......................................6-2
6.2 Startinguptheplant....................................................................................6-2
6.2.1 Regulationofliquids....................................................................................6-3
6.2.2 Regulationofsteam.....................................................................................6-3

Contents
EB 3015 EN
7 Operation..................................................................................................7-1
7.1 Adjusting the set point.................................................................................7-1
7.2 Adjustingtheowrate ................................................................................7-2
8 Malfunctions ..............................................................................................8-1
8.1 Troubleshooting ..........................................................................................8-1
8.2 Emergency action .......................................................................................8-3
9 Servicing....................................................................................................9-1
9.1 Preparing the valve for service work.............................................................9-5
9.2 Installing the regulator after service work ......................................................9-5
9.3 Service work...............................................................................................9-6
9.3.1 Replacing the actuator.................................................................................9-6
9.3.2 Replacing the seat and plug.........................................................................9-7
9.3.3 Replacing the actuator's operating diaphragm ..............................................9-7
9.4 Ordering spare parts and operating supplies ................................................9-8
10 Decommissioning .....................................................................................10-1
11 Removal ..................................................................................................11-1
11.1 Removing the regulator from the pipeline....................................................11-1
11.2 Removing the actuator from the valve .........................................................11-1
12 Repairs ....................................................................................................12-1
12.1 Returning devices to SAMSON ..................................................................12-1
13 Disposal...................................................................................................13-1
14 Certicates...............................................................................................14-1
14.1 Information on the UK sales region.............................................................14-1
15 Annex......................................................................................................15-1
15.1 Tightening torques.....................................................................................15-1
15.2 Lubricant..................................................................................................15-1
15.3 Tools ........................................................................................................15-1
15.4 Accessories ..............................................................................................15-1
15.5 Spare parts ..............................................................................................15-2
15.6 After-salesservice.....................................................................................15-7

EB 3015 EN 1-1
Safety instructions and measures
1 Safety instructions and measures
Intended use
TheSAMSONType42-36Regulatorisaowregulator.ItconsistsofaType2423Valveand
aType2426Actuator.Theregulatorisdeliveredasanassembledunitorthecomponentsof
the regulators are delivered separately.
Theself-operatedregulatorisusedtocontroltheowrateinpipelines.Liquids,gasesand
vapors in processing and industrial plants can be controlled by the regulator.
Theregulatorsaredesignedtooperateunderexactlydenedconditions(e.g.operating
pressure, process medium, temperature). Therefore, operators must ensure that the regulators
areonlyusedinoperatingconditionsthatmeetthespecicationsusedforsizingthedevices
at the ordering stage. In case operators intend to use the regulators in applications or
conditionsotherthanthosespecied,contactSAMSON.
SAMSON does not assume any liability for damage resulting from the failure to use the de-
vice for its intended purpose or for damage caused by external forces or any other external
factors.
ÎRefertothetechnicaldataandnameplateforlimitsandeldsofapplicationaswellas
possible uses.
Reasonably foreseeable misuse
The regulators are not suitable for the following applications:
− Useoutsidethelimitsdenedduringsizingandbythetechnicaldata
− Useoutsidethelimitsdenedbytheadditionalttingsmountedontheregulator
Furthermore, the following activities do not comply with the intended use:
− Use of non-original spare parts
− Performing service and repair work not described
Qualications of operating personnel
The regulator must be mounted, started up, serviced and repaired by fully trained and
qualiedpersonnelonly;theacceptedindustrycodesandpracticesmustbe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
hazardsduetotheirspecializedtraining,theirknowledgeandexperienceaswellastheir
knowledge of the applicable standards.

1-2 EB 3015 EN
Safety instructions and measures
Personal protective equipment
Werecommendcheckingthehazardsposedbytheprocessmediumbeingused(e.g.
uGESTIS(CLP)hazardoussubstancesdatabase).Dependingontheprocessmediumand/
or the activity, the protective equipment required includes:
− Protectiveclothing,safetyglovesandeyeprotectioninapplicationswithhot,coldand/or
corrosive media
− Wear hearing protection when working near the valve. Follow the instructions given by
the plant operator.
− Hard hat
− Safety harness, e.g. when working at height
− Safetyfootwear,ifapplicableESD(electrostaticdischarge)footwear
ÎCheck with the plant operator for details on further protective equipment.
Revisions and other modications
Revisions,conversionsorothermodicationsoftheproductarenotauthorizedbySAMSON.
Theyareperformedattheuser'sownriskandmayleadtosafetyhazards,forexample.Fur-
thermore, the product may no longer meet the requirements for its intended use.
Warning against residual hazards
To avoid personal injury or property damage, plant operators and operating personnel must
preventhazardsthatcouldbecausedintheregulatorbytheprocessmedium,theoperating
pressure or by moving parts by taking appropriate precautions. Plant operators and operat-
ingpersonnelmustobserveallhazardstatements,warningsandcautionnotesinthese
mounting and operating instructions.
Hazardsresultingfromthespecialworkingconditionsattheinstallationsiteoftheregulator
mustbeidentiedinariskassessmentandpreventedthroughthecorrespondingsafetyin-
structions drawn up by the operator.
Wealsorecommendcheckingthehazardsposedbytheprocessmediumbeingused(e.g.
uGESTIS(CLP)hazardoussubstancesdatabase).
ÎObservesafetymeasuresforhandlingthedeviceaswellasrepreventionandexplosion
protection measures.
These mounting and operating instructions deals with the standard version of the device.
Components of the device that differ to those used for the standard version described in this
documentcanbeexchangedwithothercertainSAMSONcomponents.Theresidualhazards
of these components are described in the associated mounting and operating instructions
(see documents listed under 'Referenced documentation').

EB 3015 EN 1-3
Safety instructions and measures
Safety features
TheType42-36Regulatordoesnothaveanyspecialsafetyfeatures.Whenrelievedofpres-
sure, the regulator is opened by the force of the set point springs.
Responsibilities of the operator
Operators are responsible for proper use and compliance with the safety regulations. Opera-
tors are obliged to provide these mounting and operating instructions as well as the refer-
enced documents to the operating personnel and to instruct them in proper operation. Fur-
thermore, operators must ensure that operating personnel or third parties are not exposed to
any danger.
Operatorsareadditionallyresponsibleforensuringthatthelimitsfortheproductdenedin
the technical data are observed. This also applies to the start-up and shutdown procedures.
Start-up and shutdown procedures fall within the scope of the operator's duties and, as such,
are not part of these mounting and operating instructions. SAMSON is unable to make any
statements about these procedures since the operative details (e.g. differential pressures and
temperatures) vary in each individual case and are only known to the operator.
Responsibilities of operating personnel
Operating personnel must read and understand these mounting and operating instructions as
wellasthereferenceddocumentsandobservethespeciedhazardstatements,warnings
and caution notes. Furthermore, operating personnel must be familiar with the applicable
health, safety and accident prevention regulations and comply with them.
Referenced standards, directives and regulations
TheregulatorscomplywiththerequirementsoftheEuropeanPressureEquipmentDirective
2014/68/EU,MachineryDirective2006/42/EC,Directive2016No.1105PressureEquip-
ment(Safety)Regulations2016andDirective2008No.1597SupplyofMachinery(Safety)
Regulations2008.RegulatorswithaCEmarkingand/orUKCAmarkinghaveadeclaration
of conformity, which includes information about the applied conformity assessment proce-
dure.Thedeclarationofconformityisincludedinthe'Certicates'section.
AccordingtotheignitionhazardassessmentperformedinaccordancewithClause5.2of
ISO80079-36,thenon-electricalregulatorsdonothavetheirownpotentialignitionsource
even in the rare incident of an operating fault. As a result, they do not fall within the scope of
Directive2014/34/EU.
ÎForconnectiontotheequipotentialbondingsystem,observetherequirementsspeciedin
Clause6.4ofEN60079-14(VDE0165-1).

1-4 EB 3015 EN
Safety instructions and measures
Referenced documentation
The following documents apply in addition to these mounting and operating instructions:
− Mounting and operating instructions for
e.g. Type2N or 2NI Strainer uEB1015
− Datasheetsfor
e.g. Accessories · Differential pressure and ow regulators uT3095
e.g. Type2N or 2NI Strainer uT1015
− Mountingandoperatinginstructionsaswellasdatasheetsforadditionalttings
(e.g. shut-off valves, pressure gauges etc.).
1.1 Notes on possible severe personal injury
DANGER
!
Risk of bursting in pressure equipment.
Regulators and pipelines are pressure equipment. Impermissible pressure or improper
opening can lead to regulator components bursting.
ÎObserve the maximum permissible pressure for regulator and plant.
ÎIf necessary, a suitable overpressure protection must be installed on site in the plant
section.
ÎBeforestartinganyworkontheregulator,depressurizeallplantsectionsaffected
as well as the regulator.
ÎDraintheprocessmediumfromalltheplantsectionsaffectedaswellastheregula-
tor.
ÎWear personal protective equipment.

EB 3015 EN 1-5
Safety instructions and measures
1.2 Notes on possible personal injury
WARNING
!
Risk of personal injury due to incorrect operation, use or installation as a result of
information on the regulator being illegible.
Over time, markings, labels and nameplates on the regulator may become covered
withdirtorbecomeillegibleinsomeotherway.Asaresult,hazardsmaygounno-
ticed and the necessary instructions not followed. There is a risk of personal injury.
ÎKeep all relevant markings and inscriptions on the device in a constantly legible
state.
ÎImmediately renew damaged, missing or incorrect nameplates or labels.
Risk of hearing loss or deafness due to loud noise.
The noise emissions depend on the valve version, plant facilities and process medium.
ÎWear hearing protection when working near the valve. Follow the instructions giv-
en by the plant operator.
Risk of personal injury due to pressurized components and process medium being
discharged.
Incorrect opening of pressure equipment or mounting parts may lead to the process
medium escaping to the atmosphere.
ÎDonotloosenthecontrollinewhilethevalveispressurized.
ÎDonotstartuptheregulatoruntilallpartshavebeenmounted.
Risk of burn injuries due to hot or cold components and pipelines.
Dependingontheprocessmedium,regulatorcomponentsandpipelinesmaygetvery
hot or cold and cause burn injuries.
ÎAllow components and pipelines to cool down or warm up to the ambient tempera-
ture.
ÎWear protective clothing and safety gloves.

1-6 EB 3015 EN
Safety instructions and measures
WARNING
!
Risk of personal injury due to residual process medium in the regulator.
While working on the regulator, residual process medium can escape and, depending
on its properties, may lead to personal injury, e.g. (chemical) burns.
ÎIf possible, drain the process medium from all the plant sections affected and the
regulator.
ÎWear protective clothing, safety gloves and eye protection.
Damage to health relating to the REACH regulation.
If a SAMSON device contains a substance listed as a substance of very high concern
on the candidate list of the REACH regulation, this is indicated on the SAMSON deliv-
ery note.
ÎInformation on safe use of the part affected uwww.samsongroup.com/en/
about-samson/material-compliance/reach-regulation/.

EB 3015 EN 1-7
Safety instructions and measures
1.3 Notes on possible property damage
NOTICE
!
Risk of regulator damage due to incorrectly attached slings.
ÎDonotattachload-bearingslingstotheactuatorhousing(seeinformationunder
'Lifting the regulator' in the 'Shipment and on-site transport' section).
Risk of regulator damage due to unsuitable medium properties.
Theregulatorisdesignedforaprocessmediumwithdenedproperties.
ÎOnlyusetheprocessmediumspeciedforsizingtheequipment.
Risk of regulator damage due to contamination (e.g. solid particles) in the pipeline.
The plant operator is responsible for cleaning the pipelines in the plant.
ÎFlush the pipelines before start-up.
Risk of regulator damage due to the use of unsuitable lubricants.
The lubricants to be used depend on the regulator material. Unsuitable lubricants may
corrode and damage surfaces.
ÎOnly use lubricants approved by SAMSON.
When in doubt, consult SAMSON.
Risk of leakage and regulator damage due to excessively high or low tightening
torques.
Observethespeciedtorqueswhentighteningregulatorcomponents.Excessivetight-
ening torques lead to parts wearing out more quickly. Parts that are too loose may
cause leakage.
ÎObservethespeciedtighteningtorques(see'Tighteningtorques'inAnnex).
Risk of regulator damage due to the use of unsuitable tools.
Certain tools are required to work on the regulator.
ÎOnly use tools approved by SAMSON.
When in doubt, consult SAMSON.

1-8 EB 3015 EN
Safety instructions and measures
NOTICE
!
Risk of the process medium being contaminated through the use of unsuitable lubri-
cants and/or contaminated tools and components.
ÎKeep the regulator and the tools used free from solvents and grease.
ÎMake sure that only suitable lubricants are used.
Risk of excess pressure damaging plant sections due to construction-related seat
leakage through the regulator.
ÎAlways install a safety device (e.g. safety excess pressure valve or safety relief
valve) in the plant.
SAMSON's After-sales Service can support you concerning lubricant, tightening torques
and tools approved by SAMSON.
Note

EB 3015 EN 2-1
Markings on the device
2 Markings on the device
Severalnameplatesareafxedtothedevice.
The nameplates shown were up to date at
the time of publication of this document. The
nameplates on the device may differ from
the ones shown. The nameplates are used to
identify the separate regulator components
(seesection2.1).
2.1 Nameplates
Nameplate for Type 2423 Valve
9
8
7
12
10 11 12 13
3
5
1517
16
14 4
18 19
20
21
Nameplate of Type2426 Actuator
132
771011 12
6.2 4
99 13
14
15
Fig.2-1: Nameplates of regulator parts
1 Model number with index
2Materialnumber/conguration
ID
3 Type
4 Production number
5 KVS/CV
7Valvesize
8 Pressure rating
9 Perm. differential pressure
10 Perm. temperature
11 Bodymaterial
12 Serial number
13 TÜVregistrationno.
14 DataMatrixcode
15 CE marking
16 Country of origin
17 EAC, if applicable
18 UKCA, if applicable
19 Year of manufacture
20 Month of manufacture
21 IDofthecerticationbody
1 Actuator area
2 Actuator model
2.1 Valvemodel
3 Material number and device
index
4IDnumber
6.2 Max. perm. pressure at actuator
7Valvesize
9 Set point range
10 Diaphragmmaterial
11 Country of origin
12 UKCA, if applicable
13 Year of manufacture
14 Month of manufacture
15 CE marking

2-2 EB 3015 EN
Markings on the device
2.2 Location of the nameplates
Location of the
nameplate on the
regulator
components
Fig.2-2: Nameplates of the Type2423 Valve
and the Type2426 Diaphragm Actu-
ator
2.3 Material identication
number
2.3.1 Type2423 Valve
Seethenameplate(11forDIN/ANSIver-
sion, body material) for the material used.
For more details on the nameplate, see sec-
tion2.1.
2.3.2 Type2426 Actuator
Specifying the material number, you can
contactustondoutwhichmaterialisused.
Itisspeciedonthenameplateinthe'MNo.'
eld(3forDIN/ANSI).Formoredetailson
thenameplate,seesection2.1.

EB 3015 EN 3-1
Design and principle of operation
3 Design and principle of oper-
ation
ÎSeeFig.3-1andFig.3-2
Type42-36·Theowregulatorisusedto
limittheowrateinthepipeline.Theset
point is adjusted at the restriction.
The regulator basically consists of a
Type2423Valvewithseat,plugandset
pointadjusteraswellasaType2426Actua-
tor (closing) with operating diaphragm.
Valveandactuatoraredeliveredseparately
and must be fastened together on site using
a coupling nut.
Type42-36 DoT·Thisversioncanalsocon-
trol or limit the temperature by mounting a
double adapter with thermostat. Read the
mounting and operating instructions:
uEB3019fordoubleadapterDoT
and
uEB2231forType2231to2234Control
Thermostats
Themediumowsthroughthevalveinthe
direction indicated by the arrow. The areas
released by the restriction (1.4) and the
valveplug(3)determinetheowrate.
In fully balanced valves, the forces acting on
the valve plug created by the upstream and
downstream pressures are balanced by a
balancing bellows (5) or balancing dia-
phragm(5.1)(DN65to250,balancedbya
diaphragm).
Regulators balanced by a bellows or a
diaphragm only differ in the pressure
balancingprincipleapplied.Valves
balanced by a diaphragm have a balancing
diaphragm (5.1) instead of the balancing
bellows (5). The downstream pressure p2acts
on the bottom of the diaphragm and the
upstream pressure p1on the top of the
diaphragm. As a result, the forces created
by the upstream and downstream pressures
acting on the plug are balanced out.
The pressure upstream of the restriction (1.4)
is transferred over the control line (18) to the
bottom diaphragm chamber and the
pressure downstream of the restriction (1.4)
is transferred through the hollow plug stem
(7)pastthediaphragmstem(6)tothetop
diaphragm chamber of the actuator. This
differential pressure creates a positioning
force at the operating diaphragm (12),
which moves the valve plug depending on
the force of the differential pressure springs
(14).Forexample,iftheowrateincreases,
the differential pressure (at the restriction)
increases as well. The actuator and plug
stems move in the closing direction, causing
theowratetodecreaseuntilitreachesthe
set point adjusted at the restriction (1.4).
Whentheowratestartstodrop,the
described procedure is reversed.

3-2 EB 3015 EN
Design and principle of operation
15
6
18
11
14
12
5
8
7
3
2
1
1.3
1.1
1.2
+
16
17
1.4
19
Type2423 Valve
balanced by a bellows
Type2426
Actuator
Fig.3-1: Functional diagram for regulators, DN15 to 250 with balancing bellows

EB 3015 EN 3-3
Design and principle of operation
1
2
3
p
5.
1
16
6
14
18
7
15
11
12
17
1.3
1.
1
1.
2
1.4
p2
1
19
Type2423 Valve
balanced by a diaphragm
Type2426
Actuator
Fig.3-2: Functional diagram for regulators, DN65 to 250 with balancing diaphragm
LegendforFig.3-1andFig.3-2
1Valvebody
1.1 Set point adjuster for
owrate
1.2 Lock nut
1.3 Cap
1.4 Restriction
2 Seat
3 Plug
5Balancingbellows
5.1 Balancingdiaphragm
6 Diaphragmstem
7 Plug stem
8Ventplug(DN125
and larger)
11 Coupling nut
12 Operating diaphragm
14 Differentialpressure
springs
15 Screws
16 Diaphragmplate
17 Nut
18 High-pressure control
line
19 Control line connection

3-4 EB 3015 EN
Design and principle of operation
3.1 Additional ttings
ÎSeeFig.3-3
Pressure gauges
Install a pressure gauge (3 and 5) at suitable
points to monitor the pressures prevailing in
the plant.
Bypass and shut-off valves
We recommend installing a shut-off valve (1
and6)bothupstreamofthestrainerand
downstream of the regulator and installing a
bypass line. The bypass ensures that the
plant does not need to be shut down for ser-
vice and repair work on the regulator.
Type42-36 installed in the ow pipe (T >150°C):
Type42-36 installed in the return ow pipe (T
<150°C):
6 5
31 2 188 4
+
7
Type42-36installedintheow
pipe(T>150°C)
6 5
31 2
4
+
7
Type42-36installedinthereturn
owpipe(T<150°C)
1 Shut-off valve
2 Strainer
3Pressuregauge(owpipe)
4 Flow regulator
5Pressuregauge(returnow
pipe)
6Shut-off valve
7Motorizedvalve
8 Needle valve
18 Compensation chamber
(optional)
∆pmin Minimum differential pressure across the valve in bar
∆prestriction Differentialpressurecreatedattherestrictionformeasuringtheowrateintheregulator
V Adjustedowrateinm³/h
KVS Valveowcoefcientinm³/h
·
The minimum required plant differential pressure
∆pmin across the valve is calculated as follows: Δpmin=Δprestriction +
(
V
)
2
KVS
·
Fig.3-3: Installation example: Type42-36 installed in the ow and return ow pipe

EB 3015 EN 3-5
Design and principle of operation
Strainers
We recommend installing a SAMSON
strainer (2) upstream of the valve. It prevents
solid particles in the process medium from
damaging the regulator.
ÎDonotusethestrainertopermanently
ltertheprocessmedium.
ÎSelectastrainer(meshsize)suitablefor
the process medium.
Any impurities carried along by the process
medium may impair the proper functioning
of the regulator. We recommend installing a
strainer (e.g. SAMSON Type2NI) upstream
of the pressure reducing valve (uEB1015).
Insulation
Regulators can be insulated to reduce heat
energy transfer.
Refer to the instructions in the 'Installation'
section.
The Type42-36 Regulator is not a safety
valve. If necessary, a suitable overpressure
protection must be installed on site in the
plant section.
Note
Note
3.2 Technical data
The valve and actuator nameplates provide
information on the valve and actuator ver-
sions (see the 'Markings on the device' sec-
tion).
More information is available in Data Sheet
uT3015.
Conformity
TheType42-36RegulatorbearstheCE,
UKCA and EAC marks of conformity.
Process medium and scope of application
TheType42-36FlowRegulatorisdesigned
tomaintaintheowrateinaplanttothead-
justed set point.
− For liquids, gases and vapors
− Max. temperature 150°C/220°C1)
− Set points from 0.05 to 520m³/h
− ValvesizeDN15 to 250
− Pressure ratings from PN16 to 40
The regulator is open when relieved of pres-
sure. The valve closeswhentheowrateris-
es.
Leakage class
The metal-seated regulator has the leakage
classIaccordingtoIEC60534-4.
The soft-seated regulator has the leakage
classIVaccordingtoIEC60534-4.
Note
1) Valvebalancedbyabellows

3-6 EB 3015 EN
Design and principle of operation
Table 3-1: Technical data · All pressures in bar (gauge)
Type 2423 Valve · Balanced by a bellows
Valve size DN15 to 100 DN125 to 250
Pressure rating PN16,25or40
Max. permissible
temperature
Valvebody
180°C·Specialversionforsteam:
220°C
220°C
See also pressure-temperature diagram in uT3000
Actuator
Withcompensationchamber:steamandliquidsupto220°C·Without
compensationchamber:liquidsupto150°C,airandnitrogenupto
150°C1)
Set point (diff. pressure at restriction) 0.2bar·0.5bar
LeakageclassaccordingtoIEC60534-4 ≤0.05%ofKVScoefcient
Conformity · ·
Refer to for the assignment of actuator and valve
Type 2423 Valve · Balanced by a diaphragm
Valve size DN65 to 250
Pressure rating PN16,25or40
Max. permissible
temperature
Valvebody See pressure-temperature diagram in uT3000
Actuator Liquids150°C,airandgases80°C
Set point (diff. pressure at restriction) 0.2bar·0.5bar
LeakageclassaccordingtoIEC60534-4 ≤0.05%ofKVScoefcient
Conformity · ·
Refer to for the assignment of actuator and valve
1) Specialversion:valvewithoricestemsealandoperatingdiaphragmmadeofFKM
Temperature range
Dependingonhowtheregulatoriscong-
ured, it can be used up to temperatures of
220°C(seeTable3-1).Theminimumtem-
perature is limited by the accessories used
and the actuator's diaphragm material
(uT3015).
Noise emissions
SAMSON is unable to make general state-
ments about noise emissions. The noise emis-
sions depend on the regulator version, plant
facilities, process medium and operating
conditions.
Dimensions and weights
Table 3-4 and Table 3-5 provide an over-
view of the dimensions and weights. The
lengths and heights in the dimensional draw-
ingsareshownonpage3-10.