RMG 210 Guida
edition 10/2004
210.20
Operation and Maintenance,
Spare Parts
Serving the Gas Industry - WORLDWIDE
We supply you with products
for gas pressure regulation:
The other RMG Companies:
Pressure Reducing Valve
Pressure Reducing Valve
RMG 210
RMG 210
GB
Contents page
1. General 3
1.1 Safety notes 3
2. Special operating instructions 4
2.1 Adjustment of the intermediate pressure 4
3. Special maintenance instructions 5
3.1 intermediate pressure stage 5
3.2 outlet pressure regulating stage 5, 6
3.3 Screw tightening torques 6
3.4 Lubricants 6
4. Spare parts
4.1 Spare part drawings
4.1.1 Centre piece with outlet pressure regulating stage type N 7, 8
4.1.2 outlet pressure regulating stage type N, intermediate pressure stage type M 9
4.1.3 outlet pressure regulating stage type M 9
4.1.4 cut-away views 10
4.2 Spare parts lists 11, 12, 13
4.3 Spare parts drawings for gauge connections
4.3.1 gauge for outlet pressure 14
4.3.2 gauge for intermediate pressure 15
4.4 Spare parts lists 16
4.5 Parts to be held in stock for maintenance work 17
210.20 p.02 en
210.20 p.03 en
1. General
Every person engaged with installation, supervision, or maintenance of the gas pressure regulator type
RMG 210 is requested to read the following leaflets and brochures beforehand:
- Technical Description 210.00 - contains technical data, measurements, and describes function and
design.
- General Operating Instructions for Gas Pressure Regulators and Safety Devices - this RMG bro-
chure describes installation and operation, nad includes general hints on fault finding and repair.
- Operation and Maintenance, Spare Parts 210.20 - contains further details on installation and operation
of the gas pressure regulator RMG 210. Maintenance instructions and the spare part drawings and -lists
of the main valve are also included.
- The related functional elements are described in separate “Operation and Maintenance, Spare Parts”-
leaflets:
filter RMG 905 905.20
Additionally, the relevant national rules and laws have to be observed (In Germany please refer to the
DVGW worksheets G 600, G 459/II, G 491 und G 495).
The frequency of periodical maintenance of the gas pressure regulator RMG 512 should be determined
according to the prevailing conditions and the type and composition of the gaseous medium. Therefore,
no fixed maintenance intervals can be prescribed. For Germany: At the beginning we recommend to use
the maintenance intervals stated in the DVGW worksheet G 495. Then individual maintenance intervals
should be determined for every station.
For maintenance all parts are to be cleaned and subjected to a thorough visual inspection. A visual in-
spection should also occur when the course of operation or functional tests have shown lack of regulating
accuracy.
Particular care should be given to the checking of sealings and diaphragms, as well as carrying and mo-
ving parts. Damaged parts should be replaced by new ones. The item numbers referred to in the mainte-
nance instructions are identical with those of spare parts drawings and spare parts lists.
We recommend to keep all parts that are specially marked "W" in the spare parts lists in stock for prompt
maintenance availibility.
1.1 Safety symbols
Safety symbols include the following key words in these operating instructions
explanation
risk of human injury
risk of damaging equipment or environment
additional information or requirements
symbols
!Caution!
Note
!Warning!
210.20 p.4 en
General design of the gas pressure regulator RMG 210 (R 10d)
*) Should the nominal flow be below qn< 9 x pa abs , then an external measuring line is not necessary. The
connection for the external measuring line can then be blocked using the supplied plug. The outlet pressure
measurement is then automatically effected via an internal bore hole.
outlet pressure control stage
intermediate pressure stage
external measuring line *)
setpoint adjuster
for intermediate pressure stage
breathing line
breathing line
setpoint adjuster
for outlet pressure
inlet pressure pe
outlet pressure pa
2. Special operating instructions
2.1 Adjustment of the intermediate pressure
The height of the internediate pressure influences the regulating characteristics of the device significantly. To
achieve a great regulating accuracy the intermediate pressure should be set as high as possible, but without
making the regulating line unstable. Lowering the intermediate pressure can dampen regulating over-reactions,
but also reduces the max. possible flow.
The height of the intermediate pressure should be approx. 1 - 2 bar above outlet pressure.
safety cap
210.20 p.05 en
3. Special maintenance instructions
3.1 Intermediate pressure stage (see page 9)
Diaphragm (68)
Sealing insert (81)
3.2 Outlet pressure stages M and N (see pages 7 and 9)
For dismantling remove lid (69), then push diaphragm (68) towards the inlet pressure connection
(to the left), and bend up this edge of the diaphragm, so that the ring underneath slides off the
lever (80).
For exchange the screws (98) should be loosened and the complete lever system (80) taken out
of the body. An indentation on the sealing insert (81) caused by the nozzle (83) is normal. The
sealing insert can be removed by levering it out with the help of a needle.
After renewing the sealing insert the position of the assembled lever system has to be checked:
Pull the lever outward to push the piston onto the nozzle. The lever should then be parallel to the
diaphragm base. If not, then vary the washers (51, 85) under the inlet pressure connection (90),
until the correct position is achieved.
Control pin (16, 76)
The control pin should glide easily in the bearing.
When adding new parts to the outlet pressure control stage check the adjusting measurement
and adjust if necessary (A new control pin might be needed!)
For the correct adjusting measurement please refer to the drawing below:
•
•
•
Note
Note
adjusting measurement
14,5 mm +0,5
lid version starting from 8/97
adjusting measurement
9,5 mm
lid version up to 7/97
Remove the piston guide (82) and check the nozzle tip visually. When using filtered, non-aggressive
gases the nozzle tip should be free of pollution or wear. In this case do not dismantle any further.
Nozzle (83) (see page 10)
•
The screw plug (50) remains screwed tight during maintenance work..
Screw plug (50) (see page 10)
•
When using filtered, non-aggressive gases the nozzle tip should be free of pollution or wear. No
further dismantling is necessary in this case.
control nozzle (28) (see page 7)
•
210.20 p.06 en
3.3 Screw tightening torques
30
2,5
3.4 Lubricants
9, 61
4
Adjusting measurement for outlet pressure control stage M
item no. tightening torque
Min Nm
A
adjusting measurement 5mm
Note
Piston (23)
The piston should move freely in the guiding bush.
•
part (to be greased slightly) lubricant RMG stock no.
all o-rings, all gliding surfaces,
all moving parts silicone grease 00 027 081 (tube 0,1 kg)
regulating screw (33, 73), threads and
indentation for spring plate mounting paste 00 027 091
all fastening screws and
all screwed pipe connections mounting grease 00 028 267
To check the correct height, press the control pin (16, 76) lightly downward to the first stop.
In this position, the control rod (20) rests on the piston (23), and the nozzle is still closed.
Upon delivery, the control pin has extra length and should be shortened to the correct
length before mounting (and sandpaper down any sharp edges!).
210.20 p.07 en
4.1 Spare part drawings
4.1.1 Centre piece with oulet pressure stage type N
MPlease note the screw tightening torques on page 6!
WParts are to be held in stock for maintenance.
A
A
M
A
M
lid version starting from 8/97
1
W 2
3
4
5
6
7
W 8
9
33
34
35
36
37
38
39
40
42
43
44 W
45 W
54
37/38
32
31
29
28
27
54
48
22 W
49 W
52/53
50
51 W
10
W 13
14
15
W 16
20
21
22
W 23
24
25
W 22
26
210.20 p.08 en
WParts to be held in stock for maintenance work.
42
7
W 8
W 44
43
outlet pressure stage type N - lid construction up to 7/97
item
no. description amt. W material RMG stock no.
7 hexagonal screw St 00 010 054
8 o-ring 1 W KG 00 020 353
42 lid size N 1 LM 10 012 137
43 intermediate ring 1 LM 10 017 916
44 diaphragm 1 W KG 10 017 918
Spare parts list
210.20 p.09 en
M please refer to torque table on page 4!
Wparts to be kept in stock for maintenance.
A
4.1.3 outlet pressure control stage M
76 W
68 W
69
40
2 W
37/38/39
75
3
64
4
9
67
74
73
172
61
1
4
65
64
37/38/39
40
737271702
W
96968
W
6766
W 60
70
4.1.2 outlet pressure control stage N, intermediate pressure stage M
C
A
D
A
M
A
M
A
M
A
M
A
M
210.20 p.10 en
4.1.4 Cut-away views
Wparts to be held in stock for maintenance.
80
51
50
W 81
82
83
84
W 51/85
37/38
88
89 W
EE
view E - E
view A - C
view D
90
87/91
98
99
100
94
Indice
Altri manuali RMG Unità di controllo
Manuali Unità di controllo popolari di altre marche
Festo
Festo Compact Performance CP-FB6-E Manuale elenco delle parti
Elo TouchSystems
Elo TouchSystems DMS-SA19P-EXTME Manuale utente
JS Automation
JS Automation MPC3034A Manuale utente
JAUDT
JAUDT SW GII 6406 Series Guida rapida
Spektrum
Spektrum Air Module System Manuale utente
BOC Edwards
BOC Edwards Q Series Manuale utente
