Dungs FRM-NOC User manual

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MC • Edition 05.20 • Nº 279 663
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This manual is intended for personnel qualied in gas
safety and regulation technology, as well as personnel
trained or instructed by them.
The former are in a position to judge the work assigned
to the latter on the basis of their technical training,
knowledge and experience, as well as knowledge of the
relevant regulations, and are able to recognise potential
dangers. Only they are permitted to carry out assembly,
commissioning, settings and maintenance on the devices
in compliance with the recognised rules for occupational
safety.
Instruction manual
FRM-NOC
2. Warnings
Never carry out work as long as gas
pressure or voltage is applied. Avoid
naked ames. Please observe public
regulations.
The device must be protected from
vibrations and mechanical impacts.
All adjustments and settings should
only be performed in accordance
with the instruction manuals of the
connected machines.
The recognised occupational safety
rules and accident prevention
regulations must be observed and,
if necessary, personal protective
measures must be taken.
Connected line systems must be free
from dirt and contamination.
Hang this instruction manual in a clearly visible
place inside the installation room! Do not carry out
any work until you have read the safety instructions
of this instruction manual and are qualied to do so.
The device may only be operated
in compliance with the operating
conditions stated on the type plate.
Prior to assembly, the device must be
inspected for transport damage.
The device must not be used in areas
with increased seismic risk.
Protection from environmental
impacts and weather conditions
(corrosion, rain, snow, icing,
humidity (e.g. by condensation),
mould, UV radiation, harmful insects,
poisonous, corrosive solutions/liquids
(e.g. cutting and cooling uids), must
be guaranteed. Depending on the
installation site, it may be necessary
to take protective measures.
The device must not be exposed to
naked ames. Protection against
lightning strikes must be guaranteed.
2.1 General warnings
1 Target group
Explanation of the symbols
1, 2, 3,... = Act based on
the sequence
• = Instruction

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2.2 Designated use
The device is used in accordance with its designated use
if the following instructions are observed:
• Use of the device in gas transport and gas distribution
networks, commercial and industrial plants.
• Use in pressure regulator stations in accordance with
EN 12186 and EN 12279.
• Use with gases of the 1st, 2nd and 3rd gas families in
accordance with EN 437 only.
• Use with dry and clean gases only, no aggressive
media.
2.3 Risks in the case of misuse
• If used in accordance with their designated use, the
devices are safe to operate.
• Non-observance of the regulations may result in per-
sonal injury or material damage, nancial damage or
environmental damage.
3. EU Approval/Statement of Conformity
• Operator errors or misuse present risks to life and limb
of the operators and also to the device and other mate-
rial property.
• Use only in compliance with the operating conditions
stated on the type plate.
• Use in perfect condition only.
• Malfunctions and faults must be eliminated immedi-
ately.
• Use only in observance of the instructions given in this
instruction manual and of national regulations.

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EU Statement of Conformity
Produkt / Product
Produit / Prodotto
FRM-NOC 100... Medium Pressure Regulator 10 bar
Hersteller / Manufacturer
Fabricant / Produttore Karl Dungs GmbH & Co. KG
Karl-Dungs-Platz 1
D-73660 Urbach, Germany
bescheinigt hiermit, dass die in dies-
er Übersicht genannten Produkte
einer EU-Baumusterprüfung un-
terzogen wurden und die wesentli-
chen Sicherheitsanforderungen der:
EU-Druckgeräterichtlinie
2014/68
in der gültigen Fassung erfüllen.
Bei einer von uns nicht freigege-
benen Änderung des Gerätes ver-
liert diese Erklärung ihre Gültigkeit.
certies herewith that the products
named in this overview were sub-
jected to an EU type-examination
and meet the essential safety
requirements:
EU Pressure Equipment Directive
2014/68
as amended.
In the event of an alteration of the
equipment not approved by us this
declaration loses its validity.
certifie par la présente que le
produit mentionné dans cette vue
d'ensemble a été soumis à un
examen de type de l'UE et qu'il
est conforme aux exigences en
matières de sécurité des dernières
versions en vigueur de :
à la directive UE « Équipements
sous pression »
2014/68
Ce communiqué n'est plus valable
si nous eectuons une modication
libre de l'appareil.
Con la presente si certica che i
prodotti citati in questa panoramica
sono stati sottoposti a una prova di
omologazione UE e che i requisiti
di sicurezza essenziali:
direttiva UE sulle attrezzatture
a pressione
2014/68
sono soddisfatti nella versione valida.
In caso di modica dell'apparecchio
non ammessa, questa dichiarazione
perde di validità.
Prüfgrundlage der EU-Baumusterprüfung
Specied requirements of the EU type-examination
Base d'essai de l'examen de type de l'UE
Criteri di prova dell'omologazione UE
DIN EN 334 (01.07.2009)
DIN EN 14382 (01.07.2009)
Gültigkeitsdauer/Bescheinigung
Term of validity/attestation
Validité/certicat
Durata della validità/Attestazione
2024-09-12
CE-0085CP0256
Notizierte Stelle (EU Baumusterprüfung: Modul B)
Notied Body (EU type-examination: Module B)
Organisme notié (Examen de type de l‘UE: module B)
Organismo noticato (Esame UE del tipo: modulo B)
DVGW CERT GmbH
Josef-Wirmer-Straße 1-3
D-53123 Bonn, Germany
Notied Body number: 0085
Überwachung des QM-Systems (Modul D)
Monitoring of the QM system (module D)
Contrôle de la gestion de l‘assurance qualité (module D)
Monitoraggio del sistema QM (modulo D)
DVGW CERT GmbH
Josef-Wirmer-Straße 1-3
D-53123 Bonn, Germany
Notied Body number: 0085
B. Sc., MBA, Simon P. Dungs
Geschäftsführer / Chief Operating Ocer
Directeur / Amministratore
Urbach, 2020-05-11

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4. Contents
1. Target group 1
2. Warnings 1
2.1 General warnings 1
2.2 Designated uses 2
2.3 Risks in the event of misuse 2
3. EU Approval/statement of conformity 2
4. Contents 4
5. Abbreviations 5
6. Features 6
6.1 Technical data 6
6.2 Nomenclature 7
6.3 Adjustment ranges 8
6.4 Accuracy class / closing pressure class 9
6.5 Selection of regulating spring 10
6.5.1 For FRM-NOC 10010/10015/100025 10
6.5.2 For FRM-NOC 10020/100040/100050 10
6.6 Selection of spring SAV 11
6.7 Type plate 12
7. Function 13
8. Dimensions 16
9. Assembly/installation 20
9.1 General information 20
9.2 Assembly instructions 21
9.3 Tightening torques 22
10. Function SAV 23
11. Adjustment 24
11.1 Adjusting the regulator 24
11.2 Adjusting the SAV 27
11.3 Example of calculations of adjustment values 28
11.4 Regulating spring replacement 29
11.4.1 Type UHD 29
11.4.2 Type ND, MD for 1", 1 ", DN25 and type HD 31
11.4.3 Type ND, MD for 2", DN40 and DN50 32
11.5 Spring replacement SAV 34
11.5.1 Spring replacement Wdso 34
11.5.2 Spring replacement Wdsu 35
12. Commissioning and decommissioning 37
12.1 General information 37
12.2 Leakage test 37
12.3 Commissioning/unlocking/control of adjustment values 38
12.4 Recommissioning 40
12.5 Decommissioning 40
13. Faults and their causes 40
14. Maintenance 42
14.1 General information 42
14.2 Regulatory maintenance instructions 46
14.2.1 Preparation 46
14.2.2 Replace the working membrane 46
14.2.2.1 Type UHD 46
14.2.2.2 Type ND, MD for 1", 1 ", DN25 and type HD 48
14.2.2.3 Type ND, MD for 2", DN40 y DN50 50
14.2.3 Replace valve seat 52
14.2.3.1 Type UHD 52
14.2.3.2 Type ND, MD for 1", 1 ", DN25 and type HD 53
14.2.3.3 Type ND, MD for 2", DN40 and DN50 55
14.3 Maintenance SAV 61
14.3.1 Preparation 62
14.3.2 Separate the ASE of the body 62
14.3.3 Assembly of the ASE on the body 63
14.4 Tools required 64
14.5 Leakage test 66
14.6 Recommended maintenance intervals 66

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5. Abbreviations
Abbreviation Description
AGoAccuracy class of the upper response pressure
AGuAccuracy class of the lower response pressure
AC Accuracy class
ASE Safety Cutting Device (without casing)
KGFlow coecient
DN Nominal diameter
Fail-open Actuator that automatically moves to the open position when the main membrane or auxiliary power
required to drive it fails
DS Type of construction: dierential strength
Class A Functional class: in case the comparison membrane is damaged or in the event of a breakdown of the
auxiliary power supply, the SAV will close
MOP Maximum permitted operating pressure
pdOutlet pressure
pd, abs. Outlet pressure as absolute pressure
puInlet pressure
pu, abs. Inlet pressure as absolute pressure
pdo Upper release pressure (overpressure)
pdu Lower release pressure (low pressure)
pmax Maximum operating pressure
padm. System-specic operating pressure according to regulator
PN Nominal pressure of the anges
PS Maximum admissible pressure
SAV Safety cut-o valve
SBV Safety Relief Valve
SG Closing pressure class
S.n. Serial Nº
SZ Closing pressure zone class
Tp. Operating temperature -20 °C ... +60 °C
Wds Range of regulation determined
Wdo Adjustment range for overpressure by using the available adjusting springs
Wdu Adjustment range for low pressure by using the available adjusting springs
Wdso Range of the adjustment spring installed for overpressure
Wdsu Range of the adjustment spring installed for low pressure
15. Spare parts 67
15.1 Regulatory list of spare parts 67
15.2 List of spare parts SAV 69
15.3 Storage conditions 70
16. Tables of ow diagram 70
16.1 Tables of ow diagram AC 10 explanation 70
16.2 Valve ow coecient KG 71

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6. Features
6.1 Technical data
Technical data FRM-NOC
Device Medium pressure regulator with spring loading in accordance with EN 334
Type of construction DSDS
Type of gas Family 1+2+3
Nominal diameters
Flange
Connecting anges PN 25 in accordance with EN 1092-1 or ANSI 150 lbs (B16.5)
DN 25 40 50
ANSI 1" 1.5" 2"
Nominal diameters
Thread
Connecting thread in accordance with BSP (ISO228/1) or NPT (B1.20.1)
G 1" 1.5" 2"
NPT 1" 1.5" 2"
Permissible pressure load 10 bar (1000 kPa)
Max. inlet pressure 10 bar (1000 kPa)
Outlet pressure range 20 - 4000 mbar (2-400 kPa)
Minimum dierential pressure
(ND)
20 mbar (2 kPa)
Minimum dierential pressure
(MD)
80 mbar (8 kPa)
Minimum dierential pressure
(HD/UHD)
250 mbar (25 kPa)
Materials Body of the regulator: Cast iron GGG 50
Actuator housing: Steel sheet (UHD)/aluminium
Membranes: NBR
Ambient temperature -20 °C to +60 °C
Relief valve Optional. Can be activated with limited capacity
Technical data SAV …
Device Safety shut-o valve according to EN 14382, class A
Type of construction DSDS
Reaction time ≤ 2s
Adjustment range for
shut-down Wdu
10 - 3000 mbar (1-300 kPa)
Adjustment range for
overpressure Wdo:
40 - 5000 mbar (4-500 kPa)
Materials Actuator body: Cast iron GGG 50 (GJS 400-18 on request)
Actuator housing: Aluminium
Diaphragms: NBR

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6.2 Nomenclature
Example FRM 100025 ND / SAV ND FRM-NOC 100 025 ND SAV ND
Type Medium pressure regulator
spring-loaded
MOP 100 … 10 000 mbar
Nominal diameter 10 1"
15 1 "
20 2"
025 DN 25
040 DN 40
050 DN 50
Outlet pressure ranges ND Low pressure
MD Medium pressure
HD High pressure
UHD Ultra high pressure
Safety device SAV Integrated safety cut-o valve
Cracking pressure ranges ND Low pressure
MD Medium pressure
HD High pressure
UHD Ultra high pressure
Type of thread/ange
ANSI
with Standard Rp or PN-25
with anges ANSI 150 lbs
NPT with threads NPT

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Type Connec-
tion
Ver-
sion
Ac-
curacy
class *
[AC]
Closing
pressure
class*
[SG]
Outlet pressure
range
Wd
Monitoring depression
SAV
Monitoring overpressure
SAV
Wdu AG Wdo AG
FRM-NOC 10010 ND G 1 ND 10 % 20 % 20-100 mbar 10 % 10 %
FRM-NOC 10010 MD G 1 MD 10 % 20 % 80-400 mbar 10 % 10 %
FRM-NOC 10010 HD G 1 HD 5 % 10 % 300-1500 mbar 5 % 5 %
FRM-NOC 10010 UHD G 1 UHD 5 % 10 % 1000-4000 mbar 5 % 5 %
FRM-NOC 10010 ND / SAV ND G 1 ND 10 % 20 % 20-100 mbar 10-115 mbar 10 % 40-240 mbar 10 %
FRM-NOC 10010 MD / SAV MD G 1 MD 10 % 20 % 80-400 mbar 35-400 mbar 10 % 180-800 mbar 10 %
FRM-NOC 10010 HD / SAV HD G 1 HD 5 % 10 % 300-1500 mbar 150-1400 mbar 5 % 500-3500 mbar 5 %
FRM-NOC 10010 UHD / SAV UHD G 1 UHD 5% 10 % 1000-4000 mbar 150-3000 mbar 5 % 1300-5000 mbar 5 %
FRM-NOC 10015 ND G 1  ND 10 % 20 % 20-100 mbar 10 % 10 %
FRM-NOC 10015 MD G 1  MD 10 % 20 % 80-400 mbar 10 % 10 %
FRM-NOC 10015 HD G 1  HD 5 % 10 % 300-1500 mbar 5 % 5 %
FRM-NOC 10015 UHD G 1  UHD 5 % 10 % 1000-4000 mbar 5 % 5 %
FRM-NOC 10015 ND / SAV ND G 1  ND 10 % 20 % 20-100 mbar 10-115 mbar 10 % 40-240 mbar 10 %
FRM-NOC 10015 MD / SAV MD G 1  MD 10 % 20 % 80-400 mbar 35-400 mbar 10 % 180-800 mbar 10 %
FRM-NOC 10015 HD / SAV HD G 1  HD 5 % 10 % 300-1500 mbar 150-1400 mbar 5 % 500-3500 mbar 5 %
FRM-NOC 10015 UHD / SAV UHD G 1  UHD 5% 10 % 1000-4000 mbar 150-3000 mbar 5 % 1300-5000 mbar 5 %
FRM-NOC 10020 ND G 2 ND 10 % 20 % 20-100 mbar 10 % 10 %
FRM-NOC 10020 MD G 2 MD 10 % 20 % 80-400 mbar 10 % 10 %
FRM-NOC 10020 HD G 2 HD 5 % 10 % 300-1500 mbar 5 % 5 %
FRM-NOC 10020 UHD G 2 UHD 5 % 10 % 1000-4000 mbar 5 % 5 %
FRM-NOC 10020 ND / SAV ND G 2 ND 10 % 20 % 20-100 mbar 10-115 mbar 10 % 40-240 mbar 10 %
FRM-NOC 10020 MD / SAV MD G 2 MD 10 % 20 % 80-400 mbar 35-400 mbar 10 % 180-800 mbar 10 %
FRM-NOC 10020 HD / SAV HD G 2 HD 5 % 10 % 300-1500 mbar 150-1400 mbar 5 % 500-3500 mbar 5 %
FRM-NOC 10020 UHD / SAV UHD G 2 UHD 5% 10 % 1000-4000 mbar 1000-4000 mbar 5 % 1300-5000 mbar 5 %
FRM-NOC 100025 ND DN 25 ND 10 % 20 % 20-100 mbar 10 % 10 %
FRM-NOC 100025 MD DN 25 MD 10 % 20 % 80-400 mbar 10 % 10 %
FRM-NOC 100025 HD DN 25 HD 5 % 10 % 300-1500 mbar 5 % 5 %
FRM-NOC 100025 UHD DN 25 UHD 5 % 10 % 1000-4000 mbar 5 % 5 %
FRM-NOC 100025 ND / SAV ND DN 25 ND 10 % 20 % 20-100 mbar 10-115 mbar 10 % 40-240 mbar 10 %
FRM-NOC 100025 MD / SAV MD DN 25 MD 10 % 20 % 80-400 mbar 35-400 mbar 10 % 180-800 mbar 10 %
FRM-NOC 100025 HD / SAV HD DN 25 HD 5 % 10 % 300-1500 mbar 150-1400 mbar 5 % 500-3500 mbar 5 %
FRM-NOC 100025 UHD / SAV UHD DN 25 UHD 5% 10 % 1000-4000 mbar 150-3000 mbar 5 % 1300-5000 mbar 5 %
FRM-NOC 100040 ND DN 40 ND 10 % 20 % 20-100 mbar 10 % 10 %
FRM-NOC 100040 MD DN 40 MD 10 % 20 % 80-400 mbar 10 % 10 %
FRM-NOC 100040 HD DN 40 HD 5 % 10 % 300-1500 mbar 5 % 5 %
FRM-NOC 100040 UHD DN 40 UHD 5 % 10 % 1000-4000 mbar 5 % 5 %
FRM-NOC 100040 ND / SAV ND DN 40 ND 10 % 20 % 20-100 mbar 10-115 mbar 10 % 40-240 mbar 10 %
FRM-NOC 100040 MD / SAV MD DN 40 MD 10 % 20 % 80-400 mbar 35-400 mbar 10 % 180-800 mbar 10 %
FRM-NOC 100040 HD / SAV HD DN 40 HD 5 % 10 % 300-1500 mbar 150-1400 mbar 5 % 500-3500 mbar 5 %
FRM-NOC 100040 UHD / SAV UHD DN 40 UHD 5% 10 % 1000-4000 mbar 150-3000 mbar 5 % 1300-5000 mbar 5 %
FRM-NOC 100050 ND DN 50 ND 10 % 20 % 20-100 mbar 10 % 10 %
FRM-NOC 100050 MD DN 50 MD 10 % 20 % 80-400 mbar 10 % 10 %
FRM-NOC 100050 HD DN 50 HD 5 % 10 % 300-1500 mbar 5 % 5 %
FRM-NOC 100050 UHD DN 50 UHD 5 % 10 % 1000-4000 mbar 5 % 5 %
FRM-NOC 100050 ND / SAV ND DN 50 ND 10 % 20 % 20-100 mbar 10-115 mbar 10 % 40-240 mbar 10 %
FRM-NOC 100050 MD / SAV MD DN 50 MD 10 % 20 % 80-400 mbar 35-400 mbar 10 % 180-800 mbar 10 %
FRM-NOC 100050 HD / SAV HD DN 50 HD 5 % 10 % 300-1500 mbar 150-1400 mbar 5 % 500-3500 mbar 5 %
FRM-NOC 100050 UHD / SAV UHD DN 50 UHD 5% 10 % 1000-4000 mbar 150-3000 mbar 5 % 1300-5000 mbar 5 %
*Accuracy class de / closing pressure group in accordance with EN 334
**pd = 80-180 mbar: AC 10 / pd= 180-420 mbar: AC 5
6.3 Adjustment ranges

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6.4 Accuracy class / closing pressure class
AC and SG data according to EN 334 do not constitute
a declaration with respect to the modulation range. For
eld use it is important to know the minimum and maxi-
mum ow rates. Therefore, the accuracy characteristics
'accuracy class and shut-o pressure class' were deter-
mined which can be guaranteed for a ow rate of 1:10.
Abbreviation Description
AC Accuracy class
pdOutlet pressure
pu1/2 Inlet pressure
pds Nominal adjusted value of the outlet pressure
SG Closing pressure class
Qmin / pu1/2 Minimum AC ow at a certain inlet pressure PU (lower ow limit, from which stable operating conditions
occur for a given set-point within the specied operating temperature range).
Qmax / pu1/2 Maximum AC ow at a certain inlet pressure PU (upper ow limit, up to which a given accuracy class
can be observed for a given set-point within the specied operating temperature range).
The AC values of the above table refer to the maximum
possible percentage deviation of the output pressure
from the adjusted set-point, in which Qmax / Qmin ≥ 10
is observed.
pd
Qmin, pu1
Q
pu1
Qmin, pu2 Qmax, pu1 Qmax, pu2
pu2
pds
pds x (1-AC/100)
pds x (1+SG/100)
pds x (1+AC/100)

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Outlet pressure adjustment range Wds
Spring
colour
Item Nº Wire diameter
[mm]
Diameter
[mm]
Length
[mm]
Adjustment range [mbar]
ND MD HD UHD
Red 287881 2.5 37 134 20-35
White 287882 2.8 37 134 30-50
Yellow 287883 3 37 134 50-75
Blue 274969 3.2 37 130 60-100 80-150
Black 274970 3.5 37 130 100-200
Purple 274971 3.7 37 130 130-250
Orange 274972 4 37 130 180-350
Pink 274973 4.3 37 130 200-400
White 2 287888 4.5 35 100 300-500
Yellow 2 287889 5 35 100 450-700
Blue 2 287890 5.5 35 100 550-900
Black 2 287891 6 35 100 650-1150
Purple 2 287892 6.5 35 100 1000-1500
Purple 3 287893 10 70 155 1000-1600
Orange 2 287894 11 70 155 1500-2400
Pink 2 287895 12 73 155 2300-3600
Red 2 287896 13 74 160 3500-4000
6.5 Selection of regulating spring
6.5.1 For FRM-NOC 10010 / 10015 / 100025
6.5.2 For FRM-NOC 10020 / 100040 / 100050
Outlet pressure adjustment range Wds
Spring
colour
Item Nº Wire diameter
[mm]
Diameter
[mm]
Length
[mm]
Adjustment range [mbar]
ND MD HD UHD
Yellow 287884 3.5 50 220 20-25
Blue 287885 4 50 220 25-45
Black 287886 4.5 50 220 30-65
Silver 287887 5 50 220 50-100
Pink 274982 5.5 50 260 80-150
Green 274983 650 260 130-250
Blue 2 274985 750 240 200-350
Black 2 274986 850 240 300-400
White 287888 4.5 35 100 300-500
Yellow 2 287889 5 35 100 450-700
Blue 3 287890 5.5 35 100 550-900
Black 2 287891 6 35 100 650-1150
Purple 2 287892 6.5 35 100 1000-1500
Purple 3 287893 10 70 155 1000-1600
Orange 2 287894 11 70 155 1500-2400
Pink 2 287895 12 73 155 2300-3600
Red 2 287896 13 74 160 3500-4000

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Specic adjustment range under pressure Wdsu
Spring colour Item Nº Wire diam-
eter [mm]
Length
[mm]
Diameter
[mm]
Adjustment range [mbar]
ND MD HD UHD
White 270353 1.2 60 10.0 10-32
Yellow 270355 1.5 55 12.3 24-40
Blue 270356 2.0 55 12.3 30-115 35-110
Black 270357 2.3 55 12.3 50-250
Purple 270358 2.5 55 12.3 80-400 150-500 150-500
Orange 270359 2.8 55 12.3 300-1000 300-1000
Silver 270360 3.0 60 15.0 800-1400 800-1400
Pink 276126 3.5 60 15.0 1200-3000
6.6 Selection of spring SAV
Specic adjustment range over pressure Wdso
Spring col-
our
Item Nº Wire diam-
eter [mm]
Length
[mm]
Diameter
[mm]
Adjustment range [mbar]
ND MD HD UHD
Silver 270361 2.2 60 30.0 40-130
Green 270366 2.5 60 30.0 60-190 180-290
Red 270367 2.7 60 30.0 90-240 230-370
Yellow 270368 3.2 60 30.0 300-500
Blue 270369 3.5 60 30.0 400-800 500-1000
Black 270370 3.7 60 30.0 700-1300
Purple 270371 4.0 60 30.0 1000-1800
Orange 270372 4.5 60 30.0 1300-2500 1300-2500
Pink 270373 4.8 60 30.0 1800-3500 1800-3500
White 271115 5.0 60 30.0 2500-5000

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6.7 Type plate
85
53
Abbreviation Description
AGoAccuracy class of the upper response pressure
AGuAccuracy class of the lower response pressure
AC Accuracy class
KGFlow coecient referred to natural gas
DN Nominal diameter
Fail-open Actuator that automatically moves to the open position when the main membrane fails or the auxiliary
power required to drive it
DS Type of construction of the SAV: of dierential resistance
Class A Functional class: in case the comparison membrane is damaged or in the event of a breakdown of the
auxiliary power supply, the SAV will close
pdOutlet pressure
puInlet pressure
PN Nominal pressure of the anges
PS Maximum admissible pressure
SG Closing pressure class
-20T60 Operating temperature -20 °C ... +60 °C
S.n. Serial Nº
Wds Range of regulation determined
Wdo Adjustment range for overpressure by using the available adjusting springs
Wdu Adjustment range for low pressure by using the available adjusting springs
Wdso Range of the adjustment spring installed for overpressure
Wdsu Range of the adjustment spring installed for low pressure
FRM + SAV
Made in Barcelona / Spain
CE-0085CP0256
S.N.:
Orifice: KG: NG
fail-open SG AC
-20T60
PS:
Pin:
Pout:
Wds:
class A AGu AGo
Wdo:
Wdu:
Wdsu:
Wdso:
FRM-NOC 100050/SAV MD
0,2 - 0,35 bar / 20 - 35kPa
0,44 - 10 bar / 44 - 1000 kPa
0,08 - 0,4 bar / 8 - 40 kPa
10 bar / 1000 kPa
20% 10%
DN50 PN 25
2019-01-28
1PDK279082S00000000
0085
0,18 - 0,8 bar / 18 - 80 kPa
0,035 - 0,4 bar / 3,5 - 40 kPa
0,3 - 0,5 bar / 30 - 50 kPa
0,05 - 0,25 bar / 5 - 25 kPa
10 %
10 %
DS
150
12 mm
DIN EN334 / DIN EN14382

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7. Function
The pressure regulator has the task of maintaining con-
stant outlet pressure despite uctuations in inlet pressure
and/or ow. In the depressurised state, the regulator is
open. The pressure regulator meets the requirements of
EN 334 as a gas pressure regulator of the dierential re-
sistance type (DS) and zero ow rate.
Main components
A Seal
B Set point spring
C Bottom membrane enclosure
D Lever system
E Breathing connection
F Working membrane
Depressurised state
The force of the set point spring B acts on the working dia-
phragm F. In the depressurised state, no force is acting on
the underside of membrane C since there is no overpres-
sure in the outlet zone. The downward movement of the
working membrane presses down on the lever system D,
which pulls up from the seal A,lifting it out of place. The
regulator is open
Checked condition
As the outlet pressure increases, the force on the working
diaphragm F increases on the underside of diaphragm C.
As a result, the working membrane F is moved upwards
until the equilibrium of forces is established between the
force of the set point spring B and that of the outlet pres-
sure. The upward movement of the working membrane F
pulls the lever system D upwards, thus pressing the seal A
downwards, reducing the valve clearance. The minimised
ow reduces the output pressure until the set-point value
(output pressure) is reached again and the equilibrium of
forces in the working membrane is restored F.
When the outlet pressure drops, the force on the work-
ing membrane F on the underside of the membrane Cis
reduced. As a result, the working membrane Fis moved
upwards until the equilibrium of forces is established be-
tween the force of the set-point spring Band that of the
outlet pressure. The downward movement of the working
membrane Fpulls the lever system D downwards, thus
pressing the seal A upwards, reducing the valve clear-
ance. The increased ow increases the output pressure
until the set-point value (output pressure) is reached again
and the equilibrium of forces in the working membrane is
restored F.
Inuence of changes in inlet pressure on outlet pres-
sure
Changes in the inlet pressure have a inuence on the out-
let pressure, as there is no balancing device. The ratio of
changes depends on the size of the working membrane
(xed size) and the size of the shell (variable).

14 … 72
MC • Edition 05.20 • Nº 279 663
A
B
C
D
E
A
B
C
D
E
F
Type UHD
F
Type HD

14 … 72
MC • Edition 05.20 • Nº 279 663
15 … 72
A
B
C
D
F
E
A
B
C
D
E
F
ND, MD for G2", DN40, DN50ND for G1", G1,5" y DN25

16 … 72
MC • Edition 05.20 • Nº 279 663
8. Dimensions
FRM-NOC...
F
A
C
D
E
B
Option external line: Only on request.
* Ermeto screw connection 12L: GE 12 - 1/4 with screw connection M16 for pipes 12 x 1.5
G*

16 … 72
MC • Edition 05.20 • Nº 279 663
17 … 72
Type Item Nº pmax.
[bar/kPa] DN Dimensions [mm] Wgt. [kg]
BSP NPT ABC D E F G
FRM-NOC 10010 ND 279054 280236 10 / 1000 1" 210 104 -240 240 250 " G " G 5
FRM-NOC 10010 MD 279055 280237 10 / 1000 1" 210 104 -240 240 250 " G " G 5
FRM-NOC 10010 HD 279058 280238 10 / 1000 1" 210 104 -240 240 250 " G " G 5
FRM-NOC 10010 UHD 279059 280239 10 / 1000 1" 210 104 -342 342 667 " G " G 9
FRM-NOC 10015 ND 279060 280240 10 / 1000 1 " 210 132 -240 240 250 " G " G 6
FRM-NOC 10015 MD 279061 280241 10 / 1000 1 " 210 132 -240 240 250 " G " G 6
FRM-NOC 10015 HD 279062 280242 10 / 1000 1 " 210 132 -240 240 250 " G " G 6
FRM-NOC 10015 UHD 279063 280243 10 / 1000 1 " 210 132 -342 342 667 " G " G 10
FRM-NOC 10020 ND 279064 280244 10 / 1000 2" 280 156 61 345 495 " G " G 12
FRM-NOC 10020 MD 279065 280245 10 / 1000 2" 280 156 61 345 495 " G " G 12
FRM-NOC 10020 HD 279066 280246 10 / 1000 2" 210 156 61 245 255 " G " G 11
FRM-NOC 10020 UHD 279067 280247 10 / 1000 2" 210 156 61 345 670 " G " G 16
Type Item Nº pmax.
[bar/kPa] DN Dimensions [mm] Wgt. [kg]
DN ANSI ABC D E F G
FRM-NOC 100025 ND 279085 280260 10 / 1000 25 210 184 50 260 270 " G " G 9
FRM-NOC 100025 MD 279086 280261 10 / 1000 25 210 184 50 260 270 " G " G 9
FRM-NOC 100025 HD 279087 280262 10 / 1000 25 210 184 50 260 270 " G " G 9
FRM-NOC 100025 UHD 279088 280263 10 / 1000 25 210 184 50 362 687 " G " G 13
FRM-NOC 100040 ND 279089 280264 10 / 1000 40 280 223 70 350 500 " G " G 17
FRM-NOC 100040 MD 279090 280265 10 / 1000 40 280 223 70 350 500 " G " G 17
FRM-NOC 100040 HD 279091 280266 10 / 1000 40 210 223 70 250 260 " G " G 16
FRM-NOC 100040 UHD 279092 280267 10 / 1000 40 210 223 70 350 675 " G " G 21
FRM-NOC 100050 ND 279093 280268 10 / 1000 50 280 254 80 400 550 " G " G 20
FRM-NOC 100050 MD 279094 280269 10 / 1000 50 280 254 80 400 550 " G " G 20
FRM-NOC 100050 HD 279095 280270 10 / 1000 50 210 254 80 300 310 " G " G 19
FRM-NOC 100050 UHD 279096 280271 10 / 1000 50 210 254 80 395 720 " G " G 24

18 … 72
MC • Edition 05.20 • Nº 279 663
FRM-NOC... / SAV
A
C
G*
E
B
Option external line: Only on request.
* Ermeto screw connection 12L: GE 12 - 1/4 with screw connection M16 for pipes 12 x 1.5
D
F

18 … 72
MC • Edition 05.20 • Nº 279 663
19 … 72
Type Item Nº pmax.
[bar/kPa] DN Dimensions [mm] Wgt. [kg]
BSP NPT ABC D E F G
FRM-NOC 10010 ND /SAV ND 279042 280224 10 / 1000 1" 210 104 245 240 250 " G " G 7
FRM-NOC 10010 MD /SAV MD 279043 280225 10 / 1000 1" 210 104 245 240 250 " G " G 7
FRM-NOC 10010 HD /SAV HD 279044 280226 10 / 1000 1" 210 104 245 240 250 " G " G 7
FRM-NOC 10010 UHD /SAV UHD 279045 280227 10 / 1000 1" 210 104 245 342 667 " G " G 11
FRM-NOC 10015 ND /SAV ND 279046 280228 10 / 1000 1 " 210 132 245 240 250 " G " G 8
FRM-NOC 10015 MD /SAV MD 279047 280229 10 / 1000 1 " 210 132 245 240 250 " G " G 8
FRM-NOC 10015 HD /SAV HD 279048 280230 10 / 1000 1 " 210 132 245 240 250 " G " G 8
FRM-NOC 10015 UHD /SAV UHD 279049 280231 10 / 1000 1 " 210 132 245 342 667 " G " G 12
FRM-NOC 10020 ND /SAV ND 279050 280232 10 / 1000 2" 280 156 245 345 495 " G " G 14
FRM-NOC 10020 MD /SAV MD 279051 280233 10 / 1000 2" 280 156 245 345 495 " G " G 14
FRM-NOC 10020 HD /SAV HD 279052 280234 10 / 1000 2" 210 156 245 245 255 " G " G 13
FRM-NOC 10020 UHD /SAV UHD 279053 280235 10 / 1000 2" 210 156 250 345 670 " G " G 18
Type Item Nº pmax.
[bar/kPa] DN Dimensions [mm] Wgt. [kg]
DN ANSI ABC D E F G
FRM-NOC 100025 ND /SAV ND 279073 280248 10 / 1000 25 210 184 245 260 270 " G " G 11
FRM-NOC 100025 MD /SAV MD 279074 280249 10 / 1000 25 210 184 245 260 270 " G " G 11
FRM-NOC 100025 HD /SAV HD 279075 280250 10 / 1000 25 210 184 245 260 270 " G " G 11
FRM-NOC 100025 UHD /SAV UHD 279076 280251 10 / 1000 25 210 184 245 362 687 " G " G 15
FRM-NOC 100040 ND /SAV ND 279077 280252 10 / 1000 40 280 223 250 350 500 " G " G 19
FRM-NOC 100040 MD /SAV MD 279078 280253 10 / 1000 40 280 223 250 350 500 " G " G 19
FRM-NOC 100040 HD /SAV HD 279079 280254 10 / 1000 40 210 223 250 250 260 " G " G 18
FRM-NOC 100040 UHD /SAV UHD 279080 280255 10 / 1000 40 210 223 250 350 675 " G " G 23
FRM-NOC 100050 ND /SAV ND 279081 280256 10 / 1000 50 280 254 250 400 550 " G " G 22
FRM-NOC 100050 MD /SAV MD 279082 280257 10 / 1000 50 280 254 250 400 550 " G " G 22
FRM-NOC 100050 HD /SAV HD 279083 280258 10 / 1000 50 210 254 250 300 310 " G " G 21
FRM-NOC 100050 UHD /SAV UHD 279084 280259 10 / 1000 50 210 254 250 395 720 " G " G 26

20 … 72
MC • Edition 05.20 • Nº 279 663
9. Assembly/installation
9.1 General information
• This device should only be installed in
compliance with the applicable rules
and standards and in accordance with
the local regulations, if necessary ap-
ply for the required approvals.
• Install the device in a building or
under a cover; do not install it out-
doors without appropriate protective
measures!
• The work area must be provided with general
safety devices.
• The lifting devices used must be suitable for the
load to be lifted.
• Enough installation space for operation and main-
tenance has to be provided.
• We recommend installing a lter with a pore size
≤ 50 µm upstream of the regulator.
• The installation must not impair the functioning
of other components.
Check prior to installation!
• The shut-o valves both on the inlet and outlet side are
closed.
• Lines are free from combustible gas.
• Prevent explosive gas-air mixture: the room atmosphere
must constantly be monitored using appropriate gas
concentration measuring devices for the detection of
gas leakages.
• Ensure electrically conductive bridging.
Prevent contact voltage and ignitable ash-over.
• The performance data on the type plate correspond to
the ordering data.
• Flanges on the inlet side and outlet side of the con-
necting line are parallel.
• The sealing surfaces of the ange are undamaged and
clean.
• The maximum inlet pressure of the system is lower
than the maximum admissible pressure of the regula-
tor.
• Protective caps at the connecting ange must be
removed.
• The minimum distances for the setting must be
observed.
• The pipeline on the inlet side must be free of water and
dirt.
Make sure during installation!
• Tension-free assembly.
• Tighten the screws crosswise.
• Tightening torques must be observed.
• Vent lines and blow-o lines individually piped.
• Vent lines and blow-o lines must end in free space:
gases must be exhausted to a safe place.
• The pulse lines may not be shut o.
• The specied distance between the measuring points
of the pulse lines must be observed.
• The ow direction (arrow) on the housing must be
followed.