Document

Gas Pressure Regulator RMG 330

serving the Gas industryworldwide

product information

2

Gas pressure regulator rmG 330

Application, characteristics, technical data

characteristics

• large inlet pressure range• can be provided with various valve seats of different sizes• valve with inlet pressure compensation• with or without incorporated safety shut-off valve (SSV)• diaphragm assembly provided with safety relief valve (SBV) for gas leakages or with additional safety diaphragm• easy maintenance due to interchangeable cartridge assemblies (plug-in system)• noise attenuation by fitting metal foam as an optional feature

application

• for domestic and industrial applications• suitable for regulation systems requiring quick response (gas furnaces)• for natural gas and all non-corrosive gaseous media

technical data

max. inlet pressure pemax 16 bar

admissible operating pressure 16 bar

outlet pressure range Wa in mbar spring-no. / colour

wire dia. in mm for mea-

suring unit

size 1 size 2

20 to 30

25 to 50

45 to 100

90 to 200

150 to 300

250 to 400

350 to 500

450 to 600

550 to 800

650 to 1000

0 / blue

1 / grey

2 / yellow

3 / brown

4 / bright red

5 / dark red

6 / bright red

7 / white

8 / green

9 / black

3,6

4,0

4,5

5,3

6,3

7,0

7,5

8,5

9,5

10,5

5,0

6,3

7,0

8,0

9,0

10,0

11,0

12,0

13,0

14,0

accuracy class (ac) andlock-up pressure class (SG)

AC ≥ 2.5SG ≥ 10

sizes DN 25, DN 50, DN 80 und DN 100

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Application, characteristics, technical data

techniSche daten

connections flanged to DIN PN 16

materials

valve body and SSVdiaphragm casinginternal partsdiaphragm, gaskets

aluminium alloysheet steelaluminium, brass, steelsynthetic rubber (NBR)

ambient temperature range class 2 -15°C to +60°C

function and strength according to DIN EN 334, DIN 3381

ped/ce and din-dVGW approved

ValVe data - SSV type rmG 720 K1a, K4 and K5

Kon

trol

lger

ät

setpoint spring overpressure release underpressure release re-engagement differential between

upper and lower response pressure

with springresponseprecisioncategory*

AGNo. colour

wire dia in mm

adjustableresponse range

(bar)

re-engagement differential

between re-sponse

pressure and normal

service pressure

∆po (bar)

adjustableresponse range

(bar)

re-engagement differential

between re-sponse

pressure and normal

service pressure

∆pu (bar)No. 5 No. 6

(bar)No. 7

K1a

1

2

3

4

5

6

7

yellow

bright red

dark red

white

light blue

white

black

2,5

3,2

3,6

4,75

1,1

1,2

1,4

0,05 … 0,10

0,08 … 0,25

0,20 … 0,50

0,50 … 1,50

0,03

0,05

0,10

0,25

0,010 … 0,015

0,014 … 0,040

0,035 … 0,120

0,012

0,03

0,06

0,05

0,07

0,12

0,29

0,07

0,09

0,14

0,31

-

0,13

0,18

0,33

10/5

10/5

5/2,5

5/2,5

15

15/5

5

K4

2

3

4

5

6

bright red

dark red

black

light blue

black

3,2

3,6

4,5

1,1

1,4

0,04 … 0,10

0,08 … 0,25

0,20 … 0,50

0,02

0,03

0,06

0,005 … 0,020

0,015 … 0,060

0,01

0,02

0,045

0,055

0,085

0,55

0,65

0,095

5/2,5

2,5

2,5/1

15/5

10/5

K5

5

6

5

6

dark red

black

light blue

black

3,6

4,5

1,1

1,4

0,20 … 0,80

0,60 … 1,50

0,10

0,20

0,015 … 0,050

0,040 … 0,120

0,03

0,06

0,17

0,27

0,20

0,30

2,5

2,5/1

15/5

10/5

*) The higher value is valid for the first half, the lower value is valid for the second half of the adjusting range.

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Application, advantages, technical data

Safety relief ValVe (SBV) for GaS leaKaGeS (inteGrated in diaphraGm aSSemBly aS an optional feature)

diaphragm assembly size spring no. wire dia. in mm adjusting range > pa

1

1

1

2

3,5

5

10 mbar to 100 mbar > pa

75 mbar to 300 mbar > pa

2

2

2

1

2

3

3

3,6

4,5

fixed adjustment 15 mbar > pa



safety diaphragm as an optional feature, for diaphragm assembly size 1, to be mounted with setpoint springs no. 1 to no. 6 (20 mbar ... 500 mbar).

ValVe data

sizevalve seat dia.

in mm

flow rate coefficient

KG (for natural gas,

ρn = 0,83 kg/m3)

in m3/h

inlet pressure range pemax* in bar for

diaphragm assembly

(max. inlet pressure in brackets) Baulänge in mm

Größe 1 Größe 2

dn 2520

33

200

420

16 (16)

10 (16)200

dn 5020

33

200

500

16 (16)

10 (16)230

dn 80

25

31

41

50

400

850

1400

1750

16 (16)

10 (16)

8 (16)

5 (10)

16 (16)

16 (16)

16 (16)

10 (16)

420

dn 100

25

31

41

50

60

80

100

400

850

1400

1750

3000

4200

4700

16 (16)

16 (16)

16 (16)

10 (16)

10 (16)

6 (12)

4 (8)

500

* The accuracy class and the lock-up pressure class stipulated by the DVGW type tests are confirmed under the following conditions:

„The inlet pressure may exceed the pe-figure stated in the table at the most by twice its value, provided the inlet pressure deviations

pe does not exceed the pemax -value stated in the table. However, it may not exceed the nominal pressure rating.“

The limitation of the inlet pressure range pe for a diaphragm assembly is not given for reasons of material strength but in the interest

of maintaining the regulating accuracy.

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Design and function

This gas pressure regulator was designed to keep the outlet pressure of a gaseous medium constant in the mains and independent of disturbing influences like inlet pressure and/or flowrate changes.The RMG 330 consists of a main valve body and the units „regulator“ and „safety shut-off valve“ (SSV measu-ring unit). Both units can easily be removed from the body by loosening the connection screws. This advantage of easy maintenance offers the following possibilities: For regular maintenance the parts of the regulator and shut-off control elements can be taken out of the body and easily subjected to a visual inspection. In case of failure the regulator and shut-off units can be replaced by spare units, and the repair works can be carried out in the workshop without having to shut down the system.A compensating diaphragm ensures pressure balance at the control element of the regulator main valve which can be equipped with orifices of various sizes. The regulating assembly can be equipped with a leakage relief valve (SBV) as an optimal feature.The outlet pressure to be controlled is fed to the diaphragm assembly via the measuring line.

regulating assembly

setpoint adjusting screw

setpoint spring

leakage relief valve SBV

measuring diaphragm

compensating diaphragm

final control element

control element of SSV

SSV diaphragm

ball release mechanism

setpoint springs

SSV measuring unit

rmG 330 dn 25 and dn 50

outlet pressureatmosphere

inlet pressure

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Design and function

The measuring diaphragm takes up the actually prevailing outlet pressure and compares it to the setpoint value preadjusted and given by the force of the setpoint spring. Any deviation of the outlet pressure from the setpoint will cause a corresponding change of the valve stem position, and the resulting change in flow rate will re-adjust the outlet pressure to the setpoint.The regulator gives tight shut-off on zero flow.The control element of the safety shut-off valve (SSV) installed in the inlet side of the body cuts off the gas flow if the outlet pressure in the main rises above or falls below preset limits.The SSV measuring diaphragm and switching bush then moves into the release position, and the ball mecha-nism sets the valve stem free to close the SSV valve. The safety shutoff valve can be re-opened by hand only, after the outlet pressure at the measuring point has been restored to a value below the re-engagement differen-tial (after a preceeding overpressure release) or to a value above the re-engagement differential (after a precee-ding underpressure release).

regulating assembly

setpoint adjusting screw

setpoint spring

leakage relief valve SBV

measuring diaphragm

compensating diaphragm

final control element

control element of SSV

SSV diaphragm

ball release mechanism

setpoint springs

SSV measuring unit

rmG 330 dn 80 and dn 100

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Dimensions and weights

dimenSionS in mm

dnmain valve body safety shut-off device

regulator with diaphragm assembly

size 1 size 2

A B C D* E øF G øH J* G øH J*

25 200 66 66 350 230 max.

130

385

297

510

50 230 77 77

80 420 165 127 580 360 max.

180

450 560 600 395 710

100 500 175 150 580 360 690 860

*) dimension for dismantling

WeiGhtS in KG

regulator with diaphragm assembly

dnsize 1 size 2

with SSV without SSV with SSV without SSV

25 10,5 9,5 - -

50 12 11 - -

80 28 21 42 35

100 - - 46 39

a

B c

øf

ed

G

J

ø h

dn

measuring line

measuring-lineSSV

vent-line

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Dimensions and weights

a

B c

øf

ed

G

J

ø h

dn

measuring line

measuring line SSV

vent-line

line connectionS

diaphragm assembly size 1 diaphragm assembly size 2

diaphragm assembly:

measuring line

vent line

control element of SSV:

measuring line SSV

vent line

connection* of:

pipe 12 x 1.5 (pipe 12 x 1.5 at SSV)

pipe 12 x 1.5 (thread R 1/2“)

connection* of:

pipe 12 x 1.5 (thread M 16 x 1.5)

pipe 12 x 1.5 (thread M 16 x 1.5)

connection* of:

pipe 16 x 2 (pipe 16 x 2 at SSV)

pipe 12 x 1.5 (thread R 1/2“)

connection* of:

pipe 12 x 1.5 (thread M 16 x 1.5)

pipe 12 x 1.5 (thread M 16 x 1.5)

*) pipe screw joints without brazing in accordance with DIN 2353, with the exception of the diaphragm assembly vent line connection

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10


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Type description

example: rmG 330 - 50 - K1 / e1 / ha / f - 33 / 1 / 1 - So

type deScription

size rmG stock no. for body

DN 25DN 50DN 80DN 100

10 004 85210 004 85010 009 03110 009 104

255080

100

size

SSV

mea-

suring

unit

adjustment range in bar

rmG stock no.

Who Whu

25 ... 508080100100

K1AK4K5K4K5

0,050 to 1,50,040 to 0,50,200 to 1,50,040 to 0,50,200 to 1,5

0,010 to 0,1200,005 to 0,0600,015 to 0,1200,005 to 0,0600,015 to 0,120

10 010 59010 008 33210 008 35210 008 33310 008 353

K1AK4K5K4K5

release

electromagnetic release for K1A, K4, K5 release upon current supply E1

manual release by contact valve RMG 912for K1A, K4, K5 HA

electric remote indication of valve positionfor K1A, K4, K5 F

type

valve seat

diameter

diaphragm

assembly

rmG stock no.*with safety diaphr

Wh 0,020 ... 0,5

standard type

Wh 0,020 ... 0,5 Wh 0,5 ... 1 bar

DN 25 and 50

2033

11

with safety dia-phragm:

1 SM

10 004 80210 004 812

10 004 83510 004 836

10 004 84010 004 841

2033

11

DN 80

2531415025314150

11112222

with safety dia-phragm:

1 SM

10 004 83410 004 81310 004 81410 004 817

10 006 15210 009 02710 009 02810 009 02910 006 17910 009 01610 009 02610 009 170

10 006 15310 009 02310 009 02410 009 02510 006 18010 009 01910 009 01810 009 017

2531415025314150

11112222

with leakagerelief valve: 2 L

DN 100

253141506080100

2222222

with leakagerelief valve: 2 L

10 006 17910 009 01610 009 02610 009 12610 009 17010 009 17110 009 172

10 006 18010 009 01910 009 01810 009 01710 009 17310 009 17410 009 175

253141506080

100

2222222

setpoint spring no.outlet pressure

range

with diaphragm assembly/rmG stock

no.

size 1 size 2

0123456789

bluegrey

yellowbrown

light reddark redlight blue

whitegreenblack

20 to 30 mbar25 to 50 mbar45 to 100 mbar90 to 200 mbar150 to 300 mbar250 to 400 mbar350 to 500 mbar450 to 600 mbar550 to 800 mbar650 to 1000 mbar

10 007 24110 003 62910 003 63010 003 63110 003 63210 003 63310 003 63410 012 56310 012 56410 004 894

19 083 65410 009 06810 009 06910 009 07010 009 07110 009 07210 009 07310 009 16310 009 16410 009 165

0123456789

spec

ial f

eatu

re (t

o be

spe

cifie

d in

det

ail)

For More information

To learn more about RMG´s advanced gas

solutions, contact your RMG

account manager or visit

www.rmg.com

GERMANY

Honeywell Process solutions

RMG Regel + Messtechnik GmbH

Osterholzstrasse 45

34123 Kassel, Deutschland

Tel: +49 (0)561 5007-0

Fax: +49 (0)561 5007-107


RMG Messtechnik GmbH

Otto-Hahn-Strasse 5

35510 Butzbach, Deutschland

Tel: +49 (0)6033 897-0

Fax: +49 (0)6033 897-130


RMG Gaselan Regel + Messtechnik GmbH

Julius-Pintsch-Ring 3

15517 Fürstenwalde, Deutschland

Tel: +49 (0)3361 356-60

Fax: +49 (0)3361 356-836


WÄGA Wärme-Gastechnik GmbH

Osterholzstrasse 45

34123 Kassel, Deutschland

Tel: +49 (0)561 5007-0

Fax: +49 (0)561 5007-207

POLAND


Gazomet Sp. z o.o.

ul. Sarnowska 2

63-900 Rawicz, Polen

Tel: +48 (0)65 5462401

Fax: +48 (0)65 5462408

ENGLAND


Bryan Donkin RMG Gas Controls Ltd.

Enterprise Drive, Holmewood

Chesterfield S42 5UZ, England

Tel: +44 (0)1246 501-501

Fax: +44 (0)1246 501-500

CANADA


Bryan Donkin RMG Canada Ltd.

50 Clarke Street South, Woodstock

Ontario N4S 0A8, Kanada

Tel: +1 (0)519 5398531

Fax: +1 (0)519 5373339

UsA


Mercury Instruments LLC

3940 Virginia Avenue

Cincinnati, Ohio 45227, USA

Tel: +1 (0)513 272-1111

Fax: +1 (0)513 272-0211

TURKEY


RMG GAZ KONT. SIS. ITH. IHR. LTD. STI.

Birlik Sanayi Sitesi, 6.

Cd. 62. Sokak No: 7-8-9-10

TR - Sasmaz / Ankara, Türkei

Tel: +90 (0)312 27810-80

Fax: +90 (0)312 27828-23

RMG 330.002001-06© 2010 Honeywell International Inc.

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