RMG 711 S2 Guide

711.22
edition 09/2004
Operation and Maintenance,
Spare Parts
Serving the Gas Industry - WORLDWIDE
We supply you with products
for gas pressure regulation:
Safety Shut-Off Valve
Safety Shut-Off Valve
RMG 711 S2
RMG 711 S2
The other RMG Companies:
GB

711.22 p.02 GB
Contents page
1. General remarks 3
2. Safety notices 3
3. Special operating notices 4
4. Special maintenance notices 4
4.1 Switch gear 4
4.2 Main valve 4
4.3 Screw tightening torques 5
4.4 Lubricants 5
5. Spare parts
5.1 Spare parts drawing 6
5.2 Spare parts list 7, 8
5.3 Spare parts drawing additional parts 9
5.4 Spare parts drawing accessories 10
5.5 Spare parts list additional parts 11
5.6 Spare parts list accessories 11
5.6 Parts for maintenance 12

1. General remarks
Every person engaged with installation, supervision, or maintenance of the safety shut-off valve (SSV)
RMG 711 S2 is requested to read the following leaflets and brochures beforehand:
- Technical Description 711.02 - 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 711.22 - contains further details on installation and operation
of the safety shut-off valve RMG 711 S2. 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:
SSV actuator type K 16, K 17, K 18, K 19 RMG leaflet 670.20
push-button valve RMG 910a RMG leaflet 910.20
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 safety shut-off valve RMG 711 S2 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
711.22 p.03 GB
explanation
risk of human injury
risk of damaging equipment or environment
additional information or requirements
symbols
!Caution!
Note
!Warning!

3. Special maintenance notes
Opening the safety shut-off valve (SSV)
For opening the SSV main valve push lever ( 53 ) into the corresponding hole in the disc (24), and turn.
711.22 p.04 GB
•
Prior to disassembly all chambers carrying gas media must be depressurised.
4. Special maintenance notes
4.2 Valve flap
close SSV (use manual release)
remove lid (6)
remove disc (24)
loosen screws (51) to release closing springs (26) in the spring housing (25)
Attention: When loosening the screws (51) stick the lever (53) into the hole in the spring housing and
hold tight to prevent the closing spring force from turning the housing whilst unscrewing.
swivel the valve flap (12) outward
When inserting a new greased o-ring (11) into the groove of the valve flap (12), first press
the ring at 3 - 4 points equally spaced around its circumference into the groove. Then press
the o-ring in completely.
Prior to turning back the valve plate (12), pull T-shaped lever (47)
4.2.1 Exchange of the valve sealing (O-ring item no. 11) in the valve plate (12)
Hint: If the valve flap (12) has been separated from the valve flap lever (10), then tighten the locking nut (14)
with the required torque and secure the nut again using the split pin (16).
Closing the safety shut-off valve (SAV) via manual release
For closing the SSV pull the T-shaped lever (47) upward.
•
•
•
•
•
•
•
•
4.1 Switch gear
4.1.1 Position of the retaining disc (34) for closed SSV
(standard version)
Bild 1 right-hand-side operation Bild 2 left-hand-side operation
switch gear lid
switching rod
switch gear screw
retaining disc
4.1.2 Mounting the switching rod (37)
When mounting the pre-assembled group consisting of switching
rod (37) / piston (42) / manual release (46) in the retaining holes
of the switch gear lid (39), please observe the position of the
switching screw (48).
Bild 3 Einbaulage der Schaltstange
Danger
Danger
!
Note

711.22 p.05 GB
Closing springs ( 26 )
The spring housing ( 25 ) contains 2 moulded receiving grooves for the closing springs. The
grooves are required for the different mounting of closing springs for "right-hand-side operation"
or "left-hand side operation" designs.
When inserting the closing springs, first place them into the spring housing (25). Note the correct
orientation of the springs as in figures 4 and 5.
The pre-tension of the closing springs is correct when all 4 fastening screws (51) can be fitted
to the housing (approx. half a turn of the spring housing). The valve flap must be in the closed
position.
•
•
•
tightening torques (MAin Nm)
DN screw (item no.)
4.3 Screw tightening torques MA
4.4 Lubricants
1 and 4 14 21 49 51 54 1000 1014
25 20 8 8 8 8 20 8 8
50 40 12 8 8 8 20 8 8
80 75 40 8 20 20 20 8 8
100 75 40 8 20 20 20 8 8
figure 5 Orientation of closing springs for
"left-hand" operation
figure 4 Orientation of closing springs for
"right-hand" operation
(standard design)
components lubricants RMG part no.
all O rings, sliding guides,
sliding faces and switch elements silicon grease 00 027 081 (tube 0.1 kg)
all fastening screws
and pipe connections assembly grease 00 028 267

711.22 p.06 GB
X
sectional view A - A
B - B
valve flap "open"
AA
B
B
(only switch device)view X
1
2
3
4
5
6
7 W
8
9
10
11 W
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28 W
29 W
30
29 W
28 W
31
32
33
34
35
36
37
38 W
39
40
41 W
42
43
44
45
46
47
49
50
51
52
48
53
54
55
56
57
M please refer to torque table on page 5!
Wparts to be held in stock for maintenance.
A
A
M
A
M
A
M
A
M
A
M
A
M
A
M
5.1 Spare parts drawing

711.22 p.07 GB
item
no. decription amt. W material DN 25 DN 50 DN 80 DN 100
RMG stock no.
5.2. Spare parts list
1 cylindrical screw 5 St 10 551
1 cylindrical screw 9 St 10 400
1 cylindrical screw 11 St 10 563
1 cylindrical screw 15 St 10 556
2 ring nut 1 St 13 129 13 130 13 137 13 137
3 threaded pin 1 St 12 382 12 043 100 118 100 119
4 hexagonal nut 1 St 5 559 5 692 13 120 13 120
5 safety washer 6 FSt 14 112
5 safety washer 10 FSt 14 113
5 safety washer 12 FSt 14 114
5 safety washer 16 FSt 14 114
6 lid 1 St 10 022 279 10 022 329 10 022 379 10 022 429
7 o-ring 1 W KG 21 141 20 248 20 250 20 457
8 dowel 1 St 17 270 17 270 17 200 17 200
9 body, at option:
9 PN 25 and PN 40 1 GS 10 022 250 10 022 300 10 022 350 10 022 400
9 ANSI 300 RF 1 GS 10 022 253 10 022 303 10 022 353 10 022 403
9 ANSI 300 RJ 1 GS 10 022 254 10 022 304 10 022 354 10 022 404
9 ANSI 600 RF 1 GS 10 022 255 10 022 305 10 022 355 10 022 405
9 ANSI 600 RJ 1 GS 10 022 256 10 022 306 10 022 356 10 022 406
10 valve flap lever 1 St 10 022 263 10 022 313 10 022 371 10 022 421
11 o-ring 1 W KG 20 236 20 458 20 330 20 313
12 valve flap, complete 1 Ms/NSt/St 10 022 262 10 022 312 10 022 357 10 022 407
13 o-ring 1 KG 20 282 20 154 21 224 21 224
14 safety nut 1 St 13 199 13 200 13 202 13 202
15 spring 1 FSt 10 018 394 10 018 394 10 001 262 10 001 262
16 dowel 1 St 15 000 15 000 15 005 15 005
17 metal filter insert 1 St 100 017 100 017 100 017 100 017
18 screw 1 NSt 10 030 024 10 030 024 10 030 024 10 030 024
19 push-button valve RMG 910a 1 10 030 030 10 030 030 10 030 030 10 030 030
20 safety washer 4 FSt 14 111 14 111 14 111 14 111
21 hexagonal nut 4 St 10 181 10 181 10 181 10 181
22 cylindrical scew 1 St 10 618 10 618 8 177 8 177
23 washer 1 St 14 082 14 082 14 137 14 137
24 disc, complete 1 LM/St 10 022 348 10 022 348 10 022 448 10 022 448
WParts to be held in stock for maintenance
Materials key
St ... steel LM ... light alloy SSt ... foam
NSt ... stainless steel Ms ... brass K ... plastic
FSt ... spring steel Cu ... copper KG ... rubbery plastic
NFSt ... stainless spring steel Bz ... bronze KGFP... rubbery plastic with special coating
GS ... steel cast GLM ... light alloy cast FPM ... rubbery plastic material
GGG ... iron cast with spheroidal graphite GMs ... brass cast FP ... special plastic material
GZn ... zink cast AlBz ... aluminium bronze PGL ... plexiglass
GBz ... bronze cast

711.22 p.08 GB
item
no. description amt. W material DN 25 DN 50 DN 80 DN 100
RMG part no.
25 spring housing, complete 1 GLM/K 10 024 535 10 024 535 10 024 635 10 024 635
26 spiral band spring 3 NSt 10 022 336 10 022 336
26 spiral band spring 4 NSt 10 022 436 10 022 436
27 guide bush 1 Ms 10 022 319 10 022 319 10 022 369 10 022 369
28 o-ring 2 W KG 20 227 20 227 20 235 20 235
29 o-ring 2 W KG 21 142 21 142 20 607 20 607
30 feather key 1 St 26 256 26 256 26 241 26 241
31 valve flap rod 1 NSt 10 030 012 10 030 012 10 030 013 10 030 014
32 guide bush 1 Ms 10 022 318 10 022 318 10 022 368 10 022 418
33 housing for switching device 1 LM 10 030 015 10 30 015 10 030 016 10 030 016
34 retaining disc 1 K/NSt 10 030 018 10 030 018 10 030 018 10 030 018
35 washer 1 St 14 127 14 127 14 127 14 127
36 safety nut 1 St 13 200 13 200 13 200 13 200
37 switching rod 1 NSt 10 030 019 10 030 019 10 030 019 10 030 019
38 o-ring 1 W KG 20 664 20 664 20 664 20 664
39 lid for switching device 1 LM 10 030 017 10 030 017 10 030 017 10 030 017
40 circlip ring 1 FSt 19 109 19 109 19 109 19 109
41 o-ring 1 W KG 20 293 20 293 20 293 20 293
42 piston 1 Bz 10 030 020 10 030 020 10 030 020 10 030 020
43 o-ring 1 KG 20 333 20 333 20 333 20 333
44 spring 1 NFSt 100 019 100 019 100 019 100 019
45 spring lid 1 LM 10 030 022 10 030 022 10 030 022 10 030 022
46 rod for manual release 1 NSt 10 030 021 10 030 021 10 030 021 10 030 021
47 T-shaped grip 1 K 100 021 100 021 100 021 100 021
48 screw 1 St 100 018 100 018 100 018 100 018
49 cylindrical screw 4 St 8 177 8 177 10 551 10 551
50 safety washer 4 FSt 14 111 14 111 14 112 14 112
51 cylindrical screw 4 St 10 549 10 549 10 428 10 428
52 safety washer 4 FSt 14 111 14 111 14 112 14 112
53 grip rod, complete 1 NSt/K 10 024 536 10 024 536 10 024 636 10 024 636
54 cylindrical screw 4 St 10 551 10 551 10 551 10 551
55 safety washer 4 FSt 14 112 14 112 14 112 14 112
56 cylindrical screw 4 St 10 642 10 642 10 642 10 642
57 safety washer 4 FSt 14 113 14 113 14 113 14 113

711.22 p.09 GB
5.3 Spare parts drawing additional parts
M please refer to the torque table on page 5!
Wparts are to be held in stock for maintenance.
A
sectional view A - A
1006
1009
1008/ 1010 1011 1012
1003
W
W 1002 1005
1006
1005
1004
A
A
X
version with actuator unit RMG 670 and RMG 671
1005
1006
1014
1015
1005
1006
1008/1009
1010
1007 1016 1012 1011 1017 1012 1011
W
A
M
1004 1003 1004
W
W
1002
version with actuator unit RMG 670 or RMG 671
1007
(only switching device)
view X
1001
1000
A
M
(only switching device)
sectional view A - A
(only switching device)
view X (only switching device)

711.22 p.10 GB
5.4 Spare parts drawing accessories
version with or without electrical indication of valve plate position
version with electromagnetic release
version with electrical
indication of valve “closed”
oeration side "right"
version without
electrical indication
1020 1020
1021 1022 1023 1024
1030
1031
1032
1033
1034/1035

711.22 p.11 GB
version with
item RMG 670 or RMG 671 RMG 670 and RMG 671
no. description W material amt. RMG stock no. Anz. RMG stock no.
5.5 Spare parts list additional parts
1000 cylindrical screw for K16/K17 St 4 10 562 8 10 562
1000 cylindrical screw for K18/K19 St 4 10 021 469 8 10 021 469
1001 safety washer FSt 4 14 111 8 14 111
1002 o-ring W KG 3 20 225 6 20 225
1003 o-ring W KG 1 20 231 2 20 231
1004 washer LM 1 10 025 103 2 10 025 103
1005 screw plug St 2 26 175 3 26 175
1006 washer LM 3 18 842 4 18 842
1007 dosing screw NSt 1 10 014 016 1 10 014 016
1008 cap nut St 1 30 804 1 30 804
1009 compression joint St 1 30 904 1 30 904
1010 adapter St 1 30 074 1 30 074
1011 washer LM 1 18 572 2 18 572
1012 screw plug St 1 10 547 2 10 547
1014 cylindrical screw St 3 10 548
1015 safety washer FSt 3 14 111
1016 base plate LM 1 10 030 023
1017 o-ring W KG 2 20 310
item
no. description amount W material RMG stock no.
5.6 Spare parts list accessories
1020 adapter for version without el. position indicator 2 K 26 550
1020 adapter for version with el. position indicator 1 K 26 550
isolating switch, optional:
1021 for 1 proximity switch (230 V AC) 1 24 402
1021 for 2 proximity switches (230 V AC) 1 24 403
1022 wire connecting box 1 24 099
1023 proximity switch 1 24 160
1024 threaded pin 1 St 12 049
electromagnetic valve (24 V DC), at option:
1030 SSV release at current supply 1 24 311
1030 SSV release at current failure 1 24 310
1031 adapter 1 St 30 023
1032 adapter 1 St 32 659
1033 adapter 1 St 32 685
1034 cap nut 1 St 30 804
1035 compression joint 1 St 30 904

711.22 p.12 GB
version with
item RMG 670 or RMG 671 RMG 670 and RMG 671
no. description amt. RMG stock no. amt. RMG stock no.
5.7 Parts for maintenance
1002 o-ring 3 20 225 6 20 225
1003 o-ring 1 20 231 2 20 231
1017 o-ring 2 20 310
item
no. description Anzahl DN 25 DN 50 DN 80 DN 100
Teile - Nummer
7 o-ring 1 21 141 20 248 20 250 20 457
11 o-ring 1 20 236 20 458 20 330 20 313
28 o-ring 2 20 227 20 227 20 235 20 235
29 o-ring 2 21 142 21 142 20 607 20 607
38 o-ring 1 20 664 20 664 20 664 20 664
41 o-ring 1 20 293 20 293 20 293 20 293

711.22 p.13 GB
Danger

711.22 p.14 GB

711.22 p.15 GB

The RMG Group of Companies on the internet: http://www.rmg.de
We supply you with products
We supply you with products
for gas pressure regulation:
for gas pressure regulation:
We reserve the right for technical changes
Safety Shut-Off Valve
RMG 711 S2
Serving the Gas Industry - WORLDWIDE
The other RMG Companies:
The other RMG Companies:
Bryan Donkin RMG Gas Controls Ltd.
Enterprise Drive, Holmewood, Chesterfield S42 5UZ, England
Telephone (++44) 1246 501-501 • Fax (++44) 1246 501-500
gas pressure regulating equipment, below ground gas control modules
RMG REGEL +MESSTECHNIK GMBH
Osterholzstrasse 45, D-34123 Kassel, Germany
Telephone (++49) 561 5007-0 • Fax (++49) 561 5007-107
gas pressure regulators and safety devices
RMG Messtechnik GmbH
Otto-Hahn-Strasse 5, D-35510 Butzbach, Germany
Telephone (++49) 6033 897-0 • Fax (++49) 6033 897-130
turbine meters, vortex meters, correctors, flow computers, odorizers
WÄGA Wärme-Gastechnik GmbH
Osterholzstrasse 45, D-34123 Kassel, Germany
Telephone (++49) 561 5007-0 • Fax (++49) 561 5007-207
design and assembly of gas pressure regulating and metering stations
Bryan Donkin RMG Co. of Canada Ltd.
50 Clarke Street South, Woodstock, Ontario N4S 7Y5, Canada
Telephone (++1) 519 5398531 • Fax (++1) 519 5373339
domestic regulators and safety devices
Karl Wieser GmbH
Anzinger Strasse 14, D-85560 Ebersberg, Germany
Telephone (++49) 8092 2097-0 • Fax (++49) 8092 2097-10
Heinrich-Lanz-Strasse 9, D-67259 Beindersheim/Pfalz, Germany
Telephone (++49) 6233 3762-0 • Fax (++49) 6233 3762-40
data logging, monitor systems, danger alarm systems
works Beindersheim
ZUG GAZOMET Sp. z o.o.
ul. Sarnowska 2, 63-900 Rawicz, Poland
Telephone (++48) 65 546 24 01 • Fax (++48) 65 546 24 08
ball valves, accessories, gas pressure regulating and meterign stations
RMG-GASELAN Regel + Meßtechnik GmbH
Julius-Pintsch-Ring 3, D-15517 Fürstenwalde, Germany
Telephone (++49) 3361 356-60 • Fax (++49) 3361 356-836
gas pressure regulating equipment, displacement meters, complete stations