720_20_gb_9108

Operation and Maintenance,Spare Parts edition 08/1991

Serving the Gas Industry - WORLDWIDE

720.20

Safety Shut-Off ValveRMG 720

720.20 S.02

720.20 S.3

Our leaflet 720.00 gives full information with technical data, different versions, and dimensions of the safety shut-off

valve (SAV) RMG 720.

Our brochure "General Operating Instructions for Gas Pressure Regulators and Safety Devices" will be useful to fit

the valve into the line, put it into service and find faults that might disturb its operation.

The construction, set-up, supervision and maintenance of gas pressure regulating stations are subject to special

national technical rules which should be strictly observed, for example those given by the German DVGW Work-

sheets G 490, G 491, and G 495.

The frequency of periodical maintenance to be foreseen for the safety shut-off valve RMG 720 should be determined

according to the prevailing service conditions and the type and composition of the gaseous medium. We, therefore,

obstain from imposing any fixed intervals and would rather refer you to the recommendations given by the DVGW

Worksheet G 495 on "Gas Pressure Regulating Stations and Metering Stations for High Gas Volumes - Supervision

and Maintenance".

For maintenance all parts are to be cleaned and subjected to a thorough visual inspection. A visual inspection should

not be omitted when the course of operation or performance tests have shown lack of response accuracy.

Particular care should be given to the checking of sealings and diaphragms, as well as all carrying and movable parts.

Damaged parts should be replaced by new ones.

The item numbers referred to in the maintenance instructions are identical with those of the spare parts drawings and

spare parts lists.

We recommend to keep all parts that are specially marked (*) in the spare parts lists in stock for prompt maintenance

availability.

2. Special operating instructions

• Opening the safety shut-off valve (SAV)

The SAV is provided with underpressure shut-off release. Re-engagement is possible only after the pressure pre-

vailing at the measuring point comes up to the service pressure p . The pressure compensation necessary for re-

opening is automatically effected by the pressure compensating valve integrated in the valve plate.

Measuring units K 1a, K 2a

(for incorporation into RMG 720 DN 25, and into RMG 300, RMG 330, RMG 332 as well as RMG 402)

Screw out locking cap (1), turn upside-down, screw

it on to valve stem and turn slowly towards body:

The pressure compensation will respond.

Pull locking cap until stop and let it go back

smoothly: The SAV is open and will re-engage.

In order to ensure perfectly reliable SAV-release

performance after re-opening, it is

to screw the locking cap back into its normal

position

a

ATTENTION

indispensable

1. General Remarks

locking cap (1)

valve stem (40, 53, 59)

720.20 S.04

Measuring units K4, K5, K6

(for incorporation into RMG 720, DN 50 to DN 100, and into RMG 330, RMG 332, RMG 408)

Press valve stem towards main body; cap (130) and

a suitable tool (screw driver) can be used as a lever.

Exert pressure SLOWLY and wait until pressure

compensation is effected. Press valve stem

through until stop and let it go back smoothly:

The SAV is open and will re-engage.

When using the tripping valve RMG 919-3 instead

of a breathing line, make sure to screw out the

locking screw (100) prior to re-engagement

operation.

Measuring units K4, K5, K6

(for incorporation into RMG 402)

Screw out locking cap, turn it round, screw it on

to valve stem and turn slowly towards body;

the pressure compensation valve will respond.

Pull locking cap until stop and let it go back

smoothly: The SAV is open and will re-

engage.

In order to ensure perfectly reliable SAV-release

performance after re-opening, it is indispensable

to screw the locking cap (201) back into its normal

position.

• Tripping tests

In order to avoid the risk of mechanical damages tripping tests should be effected only after the measuring unit will

have been mounted into the main valve body.

ATTENTION

ATTENTION

valve stem (207)

locking cap (201)

locking screw (100)

valve stem (156)

cap (130)

ATTENTION

tripping valveRMG 919

tripping valveRMG 919

Tripping tests with the measuring units K4, K5, K6 incorporated in the gas pressure regulator

RMG 402 must not be made as long as the locking cap (201) is screwed on to the valve stem

(207).

720.20 S.05

3. Special maintenance instructions

• Measuring units

Trip the SAV before you remove it from the body. SAV valves provided with underpressure release (standard version)

will close automatically.

ATTENTION

Prior to dismantling the tripping mechanism, the valve plate and the valve stem (40, 53, 59, 156, 207) of a measuring

unit released by underpressure should be moved back to reach at least its re-engagement position.

In view of the necessity of a new zero-adjustment by means of the shim (138, 234) an exchange of the measuring units

K5 for K4 or K4 for K5 or K6 cannot be made at site.

• Valve stem (40, 53, 59, 156, 207)

It is important that the valve stem can be moved easily and smoothly. Should any faults or damages of material (e.g.

ridges or flaws) be detected at the valve stem shoulder, the valve stem has to be replaced by a new one.

When fitting an new (two-piece) valve stem into the measuring units K4, K5, K6 of the series produced up to 1989,

make sure that a new guide sleeve (139, 243) and a new closing spring (119, 242) are mounted together with the

valve stem. The new version does not provide for a pressure relief ball mechanism.

Before inserting the valve stem (156, 207) into the guide sleeve (139, 242) pull the pressure relief balls (former

version) apart by applying the special assembly bolt W4 from above.

• Spring retainer (24, 103, 204)

The contact surfaces between spring retainer and diaphragm plate (26) and between switch bush (8), spring retainer

and guide sleeve (104, 206) should be kept free from grease.

• Relieving springs

For maintenance of measuring units K4, K5, K6 delivered before July 1986 make sure to fit new relieving springs

stock no. 10 008 640.

• Valve plate (155, 222)

For inserting the O-ring (124, 220) into the groove of the valve plate proceed as follows:

- grease the O-ring and put it on the groove; apply an equal pressure by hand on several points around its circum-

ference for even insertion.

- press the O-ring fully into the groove.

• Shim (138, 234)

The shim serves to adjust the tripping device to its exact zero position. After any replacement of the diaphragm, the

shim must be re-integrated unchanged.

720.20 S.06

• Switch bush (8, 26, 137, 232)

If the bush shows any signs of defects (e.g. flaw in material), replace it by a new one.

• Torque

Tighten the screws (9, 148) and nuts (51, 58, 113, 213) by torque wrench to the torque levels of the table below:

• Lubricants

screws and nuts

item no.

9

51

58

113, 213

148

torque figues M in Nm

SAV RMG 720

size DN

25 50 80 100

sub-unit for incorporationinto RMG 300, 330, 332

size DN

25 50 80 100

sub-unit for incorporationinto RMG 402, 408

inlet size DN

25 50 80 100

12

10

20

10

20

10

20

12

12

12

10

40

12

12

12

10

40

10

40

10

40

12

12

12

10

25

10

40

10

40

A

Lubricant

silicone greasestock no. 00 027 079 (box)stock no. 00 027 081 (tube)

fitting pastestock no. 00 027 091

pressure gun greasestock no. 00 027 058

application (grease parts slightly)

all O-ringsdiaphragm reinforcement (10, 140, 211)valve stem guide range (40, 53, 59, 156, 207)switch balls and bushes (14, 18, 52, 63, 106, 137, 208, 232)

setpoint adjusting screw (4, 102, 202)

screwed pipe connections (28, 37, 49, 143, 168, 172, 231, 236, 249)fastening bolts and screws (9, 17, 45, 127, 148)

720.20 S.07

W7

W6

(for former models)

RMG 720

RMG 300

RMG 330

RMG 332

RMG 402

RMG 720

RMG 330

RMG 332

RMG 402

RMG 408

for all models

RMG stock no.

• Tools for assembly and adjustment

type

RMG 720

RMG 300

RMG 330

RMG 332

RMG 402

RMG 330

RMG 332

RMG 402

RMG 720

RMG 330

RMG 332

RMG 402

RMG 408

DN 25

DN 25

DN 25 and DN 50DN 25 and DN 50

DN 25DN 80 and DN 100

DN 80 and DN 100DN 50 to DN 100DN 50 to DN 100

DN 80 and DN 100

DN 80 and DN 100DN 50 to DN 100

DN 50 to DN 100

size for item no. tool no. description

tool for assembly

13 W1 pliers A 19 DIN 5254 00 026 531

20, 121,

219, 308W2 pliers D 19 DIN 5256 00 026 532

110,

238,

322

W5

twin-dowel key

10 008 582

DN 25

DN 25


DN 25DN 50 to DN 100


DN 50 to DN 100DN 50 to DN 100

4 W7

102,

202W7

tool for adjustment

5, 133, 227 W8

W8

10 004 912

720.20 S.08

Spare partsMeasuring units K 1a / K 2aSpare parts drawing of K 1a / K 2aDrawing for RMG 720, DN 25 and RMG 402, DN 25

*) parts to be kept in stock for maintenance

measuring unit forunderpressure release only

measuring unit for overpressure release only,special version(without diaphragm rupture safety protection)

measuring unit foroverpressure and underpressure release

4.4.1.4.1.1.4.1.1.1.

partial view A

K 1a K 2a

720.20 S.09

Drawing for RMG 300, DN 25, and for RMG 330, RMG 332, DN 25 and DN 50


RMG 330, RMG 332

4.1.1.2.

RMG 300

720.20 S.10

material RMG stock no.

K 1a K 2aitemno. description

1

2*

3

4

5

6

-

-

-

-

7*

8*

9

10*

11

12

13*

14*

15*

16

17

18

19*

20*

21*

22*

23

-

24

25

-

-

-

-

26

27*

28

29

SAV locking cap

sealing ring

spring housing

spring plate

spring plate

setpoint spring:

wire dia. 2,5

wire dia. 3,2

wire dia. 3,6

wire dia. 4,75

O-ring

switch bush, complete

cylinder screw

diaphragm

diaphragm plate

pressure disc

securing ring

ball

O-ring

plug

hexagon socket screw

SAV support, complete

O-ring

securing ring

valve plate, vulcanized


main valve body:

ratedPN 16

rated ANSI 150 (p zul 16 bar)

spring retainer

setpoint spring:

wire dia. 1

wire dia. 1,1

wire dia. 1,2

wire dia. 1,4

diaphragm plate, complete

sealing ring

screwed socket

cutting ring

LM

K

GLM

Ms

K

SF

SF

SF

SF

KG

LM/NSt/St

St

KG

St

LM

SF

NSt

KG

K

St

LM/NSt/St/KG

KG

SF

LM/KG

LM/KG

GS

GS

K

SF

SF

SF

SF

LM/KG

LM

St

St

10 000 854

00 020 343

10 010 608

10 001 844

10 000 856

-

10 000 866

10 000 867

10 001 839

00 021 069

-

00 010 150

18 354 902

-

-

-

00 005 108

00 020 371

00 026 066

10 004 895

10 010 585

00 020 243

00 019 093

10 003 580

10 004 942

10 008 454

10 008 455

10 008 563

-

10 000 868

-

10 001 760

10 004 929

00 018 694

10 007 642

00 030 904

Spare parts list for K 1a / K 2aList for RMG 720, DN 25 and RMG 402, DN 25 (inlet size)

Parts marked by an asterisk (*) to be kept in stock for maintenance:

10 000 854

00 020 343

10 010 608

10 001 844

10 000 856

10 001 838

10 000 866

10 000 867

10 001 839

00 021 069

10 010 612

00 010 150

10 010 610

10 010 611

10 004 882

00 019 131

00 005 108

00 020 371

00 026 066

10 004 895

10 010 585

00 020 243

00 019 093

10 003 580

10 004 942

10 008 454

10 008 455

10 008 563

10 001 826

-

10 001 837

10 001 760

-

00 018 694

10 007 642

00 030 904

material key:K ... plastic materialKG ... rubber-like plastic materialLM ... light metalGS ... cast steel

colour:

yellow

bright red

dark red

white

St ... steelNSt... stainless steelSF ... spring steel

colour:

yellow

light blue

white

black

4.1.2.4.1.2.1.

720.20 S.11

00 010 150

00 003 399

10 010 595

10 004 923

00 020 345

10 004 933

10 009 227

00 010 150

00 003 399

10 010 614

00 020 563

10 011 077

10 011 080

10 010 605

10 011 076

10 011 081

00 010 150

00 003 399

10 010 595

10 004 923

00 020 345

10 004 933

10 009 227

00 010 150

00 003 399

10 010 614

00 020 563

10 011 077

10 011 080

10 010 605

10 011 076

10 011 081

St

St

LM/St/KG

NSt

KG

LM

SF

St

St

NSt

KG

SF

St

LM

LM/KG

LM/KG

cylinder screw

hexagon nut


valve stem, complete

O-ring

intermediate piece

pressure spring

cylinder screw

hexagon nut


O-ring

pressure spring

connecting sleeve



valve plate with relief jet

50

51

52

53*

54*

55

56

57

58

59*

60*

61

62

63

64*

65*



30

31*

32

33

34*

35

36

37

38*

39

40*

41*

42*

43

44*

45

46

47*

48

49

cap nut

O-ring

supporting ring

intermediate ring

O-ring

cutting ring

cap nut

screwed socket

sealing ring

hexagon nut


O-ring

O-ring

pressure spring

sealing ring

locking screw

arresting tube

Seeger grip ring

stay tube

tripping valve RMG 919-1

St

KG

LM

LM

KG

St

St

St

LM

St

NSt

KG

KG

SF

LM

St

LM

St

LM

-

00 030 804

00 020 361

10 004 938

10 010 598

00 021 005

00 030 904

00 030 804

10 007 642

00 018 694

10 004 924

10 008 635

00 020 345

00 020 243

10 009 227

00 018 689

00 026 175

10 001 784

00 019 183

10 010 584

10 022 971

00 030 804

-

-

-

-

00 030 904

00 030 804

10 007 642

00 018 694

-

10 008 635

00 020 345

00 020 243

10 009 227

00 018 689

00 026 175

10 001 784

00 019 183

10 010 584

10 022 971



List for sub-units for incorporation into RMG 300, DN 25and for RMG 330 and RMG 332, DN 25 and DN 50

Parts marked with an asterisk (*) to be held in stock for maintenance:

RMG 330, 332:

RMG 300:

4.1.2.2.


St ... steelNSt... stainless steelSF ... spring steel

720.20 S.12

Measuring units K4, K5, K6Spare parts drawing of K4, K5, K6Drawing for RMG 720, DN 50 to DN 100, for RMG 330 and RMG 332,DN 80 and DN 100, and for RMG 408, DN 50/100 to DN 100/200

measuring unit K4 foroverpressure and underpressure release

4.2.4.2.1.4.2.1.1.

measuring unit K4 foroverpressure release onlyspecial version (without diaphragmrupture safety protection)

measuring unit K6 for underpressure release only

*) parts to be held in stock for maintenance

720.20 S.13

Drawing for RMG 402, DN 50 to DN 100 (inlet size)


4.2.1.2.

measuring unit K6 forunderpressure release only

measuring unit K4 foroverpressure and underpressure release

measuring unit K4 foroverpressure release onlyspecial version (without diaphragmrupture safety protection)

720.20 S.14

10 008 569

00 020 429

10 001 844

10 008 563

10 008 564

10 022 115

00 005 108

00 020 430

10 008 551

10 008 552

10 008 553

00 010 043

10 008 567

00 017 201

00 008 281

00 005 559

00 020 413

00 020 383

10 007 589

10 008 577

00 020 246

00 019 127

10 008 612

00 020 412

00 020 596

00 020 432

00 020 281

00 012 324

00 014 123

00 003 399

10 008 581

10 008 580

10 008 533

10 008 535

10 008 856


DN 50 DN 80 DN 100itemno. description

100

101*

102

103

104

105

106

107*

108

-

-

-

109

110

111

112

113

114*

-

-

117*

118

119

120*

121

122

123*

124*

125*

126*

127

128

129

130

131

132

-

-

133

locking screw

O-ring

spring plate

spring retainer

guide sleeve

attenuating disc

ball

O-ring

diaphragm plate:

for K 4, Ø 122 mm

for K 5, Ø 68 mm

for K 6, Ø 42 mm

hexagon screw

double hole round nut

grooved pin

washer

hexagon nut

O-ring

-

-

O-ring

ring segment

pressure spring

O-ring

Seeger circlip ring

ring segment

O-ring

O-ring

O-ring

O-ring

gudgeon/hexagon screw

safety washer / washer

hexagon nut

valve stem cap

receiving cap (for response tests)

cover:

for K4

for K5 and K6

spring plate

LM

KG

Ms

K

Ms

KG

NSt

KG

LM

LM

LM

St

St

St

St

St

KG

KG

St

NSF

KG

SF

St

KG

KG

KG

KG

St

St

St

LM

Ms

GLM

GLM

K

10 008 569

00 020 429

10 001 844

10 008 563

10 008 564

10 022 115

00 005 108

00 020 430

10 008 551

10 008 552

10 008 553

00 010 043

10 008 567

00 017 201

00 008 281

00 005 559

00 020 413

00 020 383

10 007 589

10 008 577

00 020 247

00 019 127

10 008 612

00 020 412

00 020 268

00 020 432

00 020 281

00 012 324

00 014 123

00 003 399

10 008 581

10 008 580

10 008 533

10 008 535

10 008 856

Spare parts list for K4, K5, K6List for RMG 720, DN 50 to DN 100, for RMG 330 and RMG 332,DN 80 and DN 100, and for RMG 408, DN 50/100 to 100/200

Parts marked by an asterisk (*) to be held in stock for maintenance:

10 008 569

00 020 429

10 001 844

10 008 563

10 008 564

10 022 115

00 005 108

00 020 430

10 008 551

10 008 552

10 008 553

00 010 043

10 008 567

00 017 201

00 008 281

00 005 559

00 020 413

00 020 383

10 007 589

10 008 577

00 020 247

00 019 127

10 008 612

00 020 412

00 020 268

00 020 432

00 020 281

00 012 324

00 014 123

00 003 399

10 008 581

10 008 580

10 008 533

10 008 535

10 008 856

4.2.2.1.

material key:K ... plastic materialKG ... rubber-like plastic materialLM ... light metalMs ... brassGS ... cast steel

St ... steelNSt ... stainless steelSF ... spring steelGLM ... cast light metal

720.20 S.15

10 000 868

10 001 760

10 000 866

10 000 867

10 001 761

10 021 404

10 008 616

00 014 135

10 008 558

10 008 545

10 008 547

10 008 549

00 030 026

00 018 694

10 008 521

10 008 523

10 008 500

00 010 032

00 014 113

00 020 432

10 008 559

-

10 008 614

10 008 606

10 008 599

10 008 592

-

10 008 462

10 008 463

10 008 559

00 026 550

10 008 620

10 008 571

10 008 579

00 011 084

00 006 157

10 001 784



134

-

-

135

-

-

-

136

137

138

139

140*

-

-

-

-

-

143

144

145

-

-

-

147

148

149

150*

151

152

153

154*

155

156*

157

-

-

-

158

159

160

161

162

-

164

165

166

setpoint spring:

wire dia. Ø 1,1

wire dia. Ø 1,4

setpoint spring:

wire dia. Ø 3,2

wire dia. Ø 3,6

wire dia. Ø 4,5

hexagon nut

switch bush

shim

guide cylinder

diaphragm:

K 4

K 5

K 6

-

-

straight screwed plug connection

sealing ring

measuring unit flange:

for K 4

for K 5 and K 6

-

connecting flange

hexagon screw

safety washer

O-ring

disk

intermediate piece

nut

valve plate, complete

valve plate


main valve body:

rated PN 16

rated PN 16

rated ANSI 150

disk

screw plug

tube ring

valve stem guide

valve stem cap

-

cylinder screw

disk

arresting tube

SF

SF

SF

SF

SF

St

NSt

LM

Al-Bz

KG

KG

KG

St

LM

LM

LM

GGG

St

St

KG

St

LM

NSt

LM/KG

LM

NSt

GGG

GS

GS

St

K

KG

LM

LM

St

St

LM

10 000 868

10 001 760

10 000 866

10 000 867

10 001 761

10 021 404

10 008 616

00 014 135

10 008 558

10 008 545

10 008 547

10 008 549

00 030 026

00 018 694

10 008 521

10 008 523

10 008 502

00 010 445

00 014 115

00 020 432

10 008 559

10 008 641

10 008 614

10 008 606

10 008 601

10 008 592

10 008 437

10 008 467

10 008 469

10 008 559

00 026 550

10 008 620

10 008 571

10 008 579

00 011 084

00 006 157

10 001 784

10 000 868

10 001 760

10 000 866

10 000 867

10 001 761

10 021 404

10 008 616

00 014 135

10 008 558

10 008 545

10 008 547

10 008 549

00 030 026

00 018 694

10 008 521

10 008 523

10 008 502

00 010 445

00 014 115

00 020 432

10 008 559

10 008 641

10 008 614

10 008 606

10 008 601

10 008 592

10 008 427

10 008 464

10 008 466

10 008 559

00 026 550

10 008 620

10 008 571

10 008 579

00 011 084

00 006 157

10 001 784


St ... steelNSt ... stainless steelSF ... spring steelGLM ... cast light metal

Al-Bz ... aluminium-bronzeGGG ... nodular cast iron

colour:

light blue

black

colour:

bright red

dark

black

720.20 S.16

10 008 538

10 022 971

00 018 694

00 030 804

00 030 904

00 030 113

00 020 596

00 005 692

00 014 113

10 008 599

10 008 592

00 026 363



167

168

169*

170

171

172

124*

148

149

155

156*

163

124*

148

149

155

156*

ring support (K6 only)


sealing ring

cap nut

cutting ring

screwed socket

O-ring

hexagon nut

safety washer

valve plate


protection cap

O-ring

hexagon nut

safety washer

valve plate


LM

-

LM

St

St

St

KG

St

St

LM

NSt

KG

KG

St

St

LM

NSt

10 008 538

10 022 971

00 018 694

00 030 804

00 030 904

00 030 113

00 020 268

00 013 120

00 014 113

10 008 601

10 008 594

00 026 363

00 020 268

00 013 120

00 014 114

10 008 601

10 008 594

material key:K ... plastic materialKG ... rubber-like plastic materialLM ... light metal

St ... steelNSt ... stainless steelMs ... brass

10 008 538

10 022 971

00 018 694

00 030 804

00 030 904

00 030 113

00 020 226

00 013 120

00 014 114

10 008 600

10 008 593

00 026 363

00 020 266

00 013 120

00 014 114

10 008 600

10 008 593

Parts of sub-unit for incorporation into RMG 408, DN 50/100 to DN 100/200:

Parts of sub-unit for incorporation into RMG 330 and RMG 332, DN 80 and DN 100:

List for RMG 402, DN 50 to DN 100 (inlet size)

Parts marked by asterisk (*) to be kept in stock for maintenance:

10 021 413

10 001 844

10 000 865

10 000 866

10 000 867

10 001 761

10 009 563

00 020 316

10 021 411

10 021 415

10 021 794

10 021 417

10 021 404

10 022 115



201

202

203

-

-

-

-

204

205*

206

207*

-

-

-

-*

locking screw

spring plate

setpoint spring:

wire dia. Ø 2,5

wire dia. Ø 3,2

wire dia. Ø 3,6

wire dia. Ø 4,5

spring retainer

O-ring

guide sleeve, complete

pre-assembled valve stem, consisting of:


connecting rod

hexagon nut

attenuating disk

LM

Ms

SF

SF

SF

SF

K

KG

Ms/KG/St

NSt

NSt/St

NSt

St

KG

10 021 413

10 001 844

10 000 865

10 000 866

10 000 867

10 001 761

10 009 563

00 020 316

10 021 411

10 021 795

10 021 794

10 021 848

10 021 404

10 022 115

10 021 413

10 001 844

10 000 865

10 000 866

10 000 867

10 001 761

10 009 563

00 020 316

10 021 411

10 021 795

10 021 794

10 021 848

10 021 404

10 022 115

colour:

yellow

bright red

dark red

black

4.2.2.2.

720.20 S.17

00 005 108

10 008 551

10 008 552

10 008 553

00 010 043

10 008 545

10 008 547

10 008 549

10 008 281

00 005 559

00 017 201

10 007 589

10 008 500

00 019 127

00 020 596

10 008 599

10 008 606

00 020 412

10 008 612

10 008 614

00 020 429

10 000 856

10 000 868

10 001 760

10 008 533

10 008 535

00 018 694

10 022 971

10 008 616

00 020 430

00 014 135

00 018 694

00 030 026

10 008 521

10 008 523

10 008 567

00 020 413

00 020 383



208*

209

-

-

-

210

211*

-

-

-

212

213

214

-

-

217

218

219*

220*

221

222*

223*

224

225

226*

227

228

-

-

229

-

-

230*

231

232*

233*

234

235*

236

237

-

-

238

239*

-

241*

ball

diaphragm plate:

for K 4

for K 5

for K 6

hexagon screw

diaphragm:

for K 4

for K 5

for K 6

washer

hexagon nut

pin

-

-

ring segment

SAV connecting flange

snap ring

O-ring

valve plate with relief valve


O-ring

ring segment

nut

O-ring

spring plate

setpoint spring:

wire dia. Ø 1,1

wire dia. Ø 1,4

diaphragm cover:

for K 4

for K 5 and K 6

sealing ring


switch bush

O-ring

disk

sealing ring

screwed connection

measuring unit flange:

for K4

for K5 and K6

double hole round nut

O-ring

-

O-ring

NSt

LM

LM

LM

St

KG

KG

KG

St

St

St

St

St

SF

KG

LM

LM/KG

KG

St

NSt

KG

K

SF

SF

LM

LM

LM

NSt

KG

LM

LM

St

LM

LM

St

KG

KG

00 005 108

10 008 551

10 008 552

10 008 553

00 010 043

10 008 545

10 008 547

10 008 549

10 008 281

00 005 559

00 017 201

10 007 589

10 008 502

00 019 127

00 020 268

10 008 601

10 008 606

00 020 412

10 008 612

10 008 614

00 020 429

10 000 856

10 000 868

10 001 760

10 008 533

10 008 535

00 018 694

10 022 971

10 008 616

00 020 430

00 014 135

00 018 694

00 030 026

10 008 521

10 008 523

10 008 567

00 020 413

00 020 383

00 005 108

10 008 551

10 008 552

10 008 553

00 010 043

10 008 545

10 008 547

10 008 549

10 008 281

00 005 559

00 017 201

10 007 589

10 008 502

00 019 127

00 020 266

10 008 600

10 008 606

00 020 412

10 008 612

10 008 614

00 020 429

10 000 856

10 000 868

10 001 760

10 008 533

10 008 535

00 018 694

10 022 971

10 008 616

00 020 430

00 014 135

00 018 694

00 030 026

10 008 521

10 008 523

10 008 567

00 020 413

00 020 383


St ... steelNSt ... stainless steelSF ... spring steel

colour:

light blue

black

720.20 S.18

10 008 577

10 008 557

00 020 432

00 019 183

10 010 584

10 001 784

00 030 113

00 030 804

00 030 904



242

243

244*

245

246

247

-

249

250

251

pressure spring

guide cylinder, pre-assembled

O-ring

Seeger grip ring

stay tube

arresting tube

-

screwed socket

cap nut

cutting ring

SF

Al-Bz

KG

St

LM

LM

St

St

St

10 008 577

10 008 557

00 020 432

00 019 183

10 010 584

10 001 784

00 030 113

00 030 804

00 030 904


St ... steelSF ... spring steelAl-Bz .. aluminium-bronze

10 008 577

10 008 557

00 020 432

00 019 183

10 010 584

10 001 784

00 030 113

00 030 804

00 030 904

5. SAV-model produced from 06/89 to 03/91

measuring unit

spring cover withthrottling port

Remark:

It is possible to integrate the tripping valve RMG 919 (see item 168, page 15) into formerly delivered SAV-units.

In this case the throttling port should be rebored to at least 4 mm.

720.20 S.19

6.6.1.6.1.1

Special featuresSpare parts drawingsRemote release upon current supply

6.1.2. Manual release

313 / 314

316

311

313 / 314313 / 314

315

311 / 312

720.20 S.20

6.1.3. Remote release and manual release upon current supply

remote release

manual release

720.20 S.21

a) for K 1a / K 2a

6.1.4. Electric remote indication

b) for K4, K5 and K6

The regulator RMG 402 is equipped with a proximity switch integrated in the main valve body (see leaflet 402.20):

720.20 S.22

00 030 804

00 030 904

00 024 053

00 024 059

00 030 113

00 030 804

00 030 904

10 005 070

00 018 694

00 030 038

10 005 070

00 030 113

00 018 694

00 030 804

00 030 904

00 030 038

00 024 053

00 024 059

10 004 793

10 004 794

00 024 046

00 024 047

10 014 020

00 020 425

00 008 271

10 004 795

00 019 188

10 004 792

00 011 020

10 010 616

Werkstoff Bestell-Nr.Pos.- Nr. Benennung

300

301

302

303

304

305

306

307*

308

-

310

311

312

313

314

315

316

-

-

-

320

321

322

323

324

325*

326

327

328

329

330

331

cap nut

cutting ring

3/2-way solenoid valve, at option:

24 V

220 V

screwed socket

cap nut

cutting ring

contact valve RMG 912

sealing ring

screwed socket

-

contact valve RMG 912

screwed socket

sealing ring

cap nut

cutting ring

screwed socket

3/2-way solenoid valve, at option:

24 V

220 V

-

-

-

locking cap

spring guide

proximity switch

separating switch device

pressure spring

O-ring

disk

disk

SEEGER serrated ring

intermediate piece

cylinder screw

spring housing

St

St

St

St

St

LM

St

St

LM

St

St

St

LM

LM

SF

KG

St

St

SF

LM

St

GLM

Spare parts lists for special features

Parts marked by an asterisk (*) to be kept in stock for maintenance:

material key:KG ... plastic materialLM ... light metalGLM ... cast light metal

St ... steelSF ... spring steel

6.2.

720.20 S.23

The RMG Group of Companies on the internet: http://www.rmg.de

We supply you with productsfor gas pressure regulation:

We reserve the right for technical changesServing the Gas Industry - WORLDWIDE

The other RMG Companies:

Bryan Donkin RMG Gas Controls Ltd.Enterprise Drive, Holmewood, Chesterfield S42 5UZ, EnglandTelephone (++44) 1246 501-501 • Fax (++44) 1246 501-500gas pressure regulating equipment, below ground gas control modules

RMG REGEL + MESSTECHNIK GMBHOsterholzstrasse 45, D-34123 Kassel, GermanyTelephone (++49) 561 5007-0 • Fax (++49) 561 5007-107

gas pressure regulators and safety devices

RMG-GASELAN Regel + Meßtechnik GmbHJulius-Pintsch-Ring 3, D-15517 Fürstenwalde, GermanyTelephone (++49) 3361 356-60 • Fax (++49) 3361 356-836gas pressure regulating equipment, displacement meters, complete stations

RMG Messtechnik GmbHOtto-Hahn-Strasse 5, D-35510 Butzbach, GermanyTelephone (++49) 6033 897-0 • Fax (++49) 6033 897-130turbine meters, vortex meters, correctors, flow computers, odorizers

WÄGA Wärme-Gastechnik GmbHOsterholzstrasse 45, D-34123 Kassel, GermanyTelephone (++49) 561 5007-0 • Fax (++49) 561 5007-207design and assembly of gas pressure regulating and metering stations

Bryan Donkin RMG Co. of Canada Ltd.50 Clarke Street South, Woodstock, Ontario N4S 7Y5, CanadaTelephone (++1) 519 5398531 • Fax (++1) 519 5373339domestic regulators and safety devices

Karl Wieser GmbHAnzinger Strasse 14, D-85560 Ebersberg, GermanyTelephone (++49) 8092 2097-0 • Fax (++49) 8092 2097-10

Heinrich-Lanz-Strasse 9, D-67259 Beindersheim/Pfalz, GermanyTelephone (++49) 6233 3762-0 • Fax (++49) 6233 3762-40 data logging, monitor systems, danger alarm systems

Betriebsstelle Beindersheim

720_20_gb_9108

Documents

valve rmg

maintenance of gas pressure

safety shutoffvalve

gas pressure regulators

fitthe valve

press valve stem

valve plate

service pressure p