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Pressure regulatorFRNZero pressure regulator4.11
Technical descriptionThe DUNGS pressure regulator, type FRN, has an adjustable setpoint spring. The pressure regulator complies with EN 88 and DIN 3380.
- Input pressures up to 50 mbar (5 kPa)- Highflowrate- Sturdy, precise and sensitive regu-
lation of regulator input pressure (response pressure)
- Inlet pressure compensation dia-phragms
- Internal pulse for regulator output pressure as standard
- Rp 1/2 to Rp 2 threaded connection- DN40toDN100flangeconnection
ApplicationThe DUNGS pressure regulator, type FRN, does not contain any non-ferrous metals and is suitable for gases up to max. 0.1 vol.% H2S, dry.Suitable for gases of families 1, 2, 3 and other neutral gaseous media.
ApprovalsEC type test approval as per EC Gas Appliance Directive:FRN … CE-0085 AQ7126Approvals in other important gas con-suming countries.
PrintedinGermany•Edition02.10•N
r.214744
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Specifications
Nominal diametersPipe thread as per ISO 7/1Flange
Max. operating pressure
Pressure regulator
Input pressure range
Output pressure range
Materials of gas-conveying parts
Ambient temperature
Measuring/ignition gas connections
Pulse connection
Installation position
Measurement opening
DN 40 50 65 80 100Rp 11/2 2ConnectionflangeasperDINEN1092-1
up to 500 mbar (50 kPa)
Pressure regulator as per EN 88, Class A, Group 2
2.5 mbar or p2 + 2.50 mbar to 50 mbar
-3 mbar to +5 mbar as a factor of adjustable setpoint spring and applied air pressure (pulse)
Housing: aluminium, steelSeals and diaphragms: NBR
-15 °C to +70 °C
G 1/4 ISO 228 on both sides in inlet section
Existing internal in outlet sectionExternally prepared on housing
Regulator dome vertically downwards
G 1/8 ISO 228 in the baseplate (option DN 40 to DN 100)Reclosableopeningforsettingsystem-specificvaluaswhenthesystemisputinto operation, e. g. gas motor
Pressure tapsPulse and fan connection
1 Breathing plug: connection for compensation line
2 Breathing plug: connection for ventilation pipe (min. DN 15)
3 G 1/4 ISO 228 screw plug in input section on both sides
4 Right: G 1/4 screw plug Right: p2 instrument gland
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FRN Spring-loaded pressure regulator with adjustable setpoint spring. Internal tap of regulator output pres-sure; external pulse and blower pressure connections.
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Dimensions
Type
FRN 515FRN 520
FRN 5040FRN 5050FRN 5065FRN 5080FRN 5100
OrderNo.
103 044101 287
172 560172 570172 580172590172 600
pmax.[mbar]
500500
500500500500500
Rp / DN
Rp 1 1/2Rp 2
DN 40DN 50DN 65DN 80DN 100
Dimensions [mm]a
150170
200230290310350
b
195250
195250285285350
c
40 47
7582.592.5100110
d
285345
315375440440535
e
G 1/2G 1/2
G 1/2G 1/2G 1/2G 1/2G 1/2
f
G 1/4G 1/4
G 1/4G 1/4G 1/4G 1/4G 1/4
g
G 1/4G 1/4
G 1/4G 1/4G 1/4G 1/4G 1/4
h
395480
430510620620800
i
G 1/2G 1/2
G 1/2G 1/2G 1/2G 1/2G 1/2
Weight[kg]
4.06.0
5.07.510.513.020.0
Application exampleZero pressure regulator
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Ventilation pipe
MixerGas motor
Filter
Pulse
KH GF FRS DMV
FRN
The adjustment spring acts against the force due to weight of moving parts. The force due to weight is compen-sated as a factor of the pretension of
the adjustment spring. The chamber between the working diaphragms must be connected with atmosphere (ventilation pipe). A pres-
sure compensation line (pulse) may be connected to the regulator dome.
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Pressure regulatorFRNZero pressure regulator
Flow diagramin regulated state
We reserve the right to make any changes in the interest of technical progress.
1,0
2
3
456789
10
20
30
4050
100
60708090
1 2 4 6 8 10 20 40 60 80 100 200 400 600 800 1000 2000 4000
1 2 4 6 8 10 20 40 60 80 100 200 400 600 800 1000 2000 4000
Vn [m /h] Luft / Air / Aria dv = 1,00° 3
Vn [m /h] Erdgas/Natural gas/Gaz Naturel/Gas metano dv = 0,65° 3
∆p [m
bar]
DN
80
DN
100
Rp 1
1/2
DN
40
DN
50
Rp 2
Rp 2
1/2
DN
65
Recommended operating range
Basis + 15° C, 1013 mbar, trockenBased on + 15° C, 1013 mbar, dryBase + 15° C, 1013 mbar, secBase + 15° C, 1013 mbar, secco
Head Offices and FactoryKarl Dungs GmbH & Co. KG Siemensstraße 6-10 D-73660 Urbach, GermanyTelephone +49 (0)7181-804-0Fax +49 (0)7181-804-166
Postal addressKarl Dungs GmbH & Co. KGPostfach 12 29D-73602 Schorndorf, Germanye-mail [email protected] www.dungs.com