Honeywell HON 372 Manual

Gas Pressure Regulator HON 372 372.20
Serving the Gas Industry
Worldwide
OPERATING AND MAINTENANCE INSTRUCTIONS/
SPARE PARTS EDITION 01/2017

Contents Page
1. General information 3
2. Specic maintenance instructions 4
2.1 Pressure-compensating diaphragm 4
2.2 Valve rod 4
2.3 Tightening torques 5
2.4 Lubricants 5
2.5 Screw locking devices
3. Spare parts
3.1.1.1 Spare parts drawings HON 372 DN 25 and DN 50 - K1a/K2a 6
3.1.1.2 Spare parts drawings HON 372 DN 25 and DN 50 - K16/K17 7
3.1.2 Spare parts drawings HON 372 DN 25 and DN 50 8, 9
3.2.1 Spare parts drawings HON 372 DN 80 through DN 150 10
3.2.2 Spare parts drawings HON 372 DN 80 through DN 150 11, 12
3.3.1 Spare parts drawing regulating assembly 1 13
3.3.2 Spare parts list regulating assembly 1 14, 15
3.4.1 Spare parts drawing regulating assembly 2 16
3.4.2 Spare parts list regulating assembly 2 17, 18
3.5.1 Spare parts drawing regulating assembly 3 19
3.5.2 Spare parts list regulating assembly 3 20, 21
3.6.1.1 Spare parts drawing actuator K1a 22
3.6.1.2 Spare parts drawing detail Z 23
3.6.1.3 Spare parts drawing SSV ap 23
3.6.1.4 Spare parts drawing actuator K2a 24
3.6.2 Spare parts drawing actuator K1a and K2a 25, 26
3.7.1 Spare parts drawing pressure/force transducer 27
3.7.2 Spare parts list pressure/force transducer 28
4. Parts for maintenance purposes 29, 30, 31
372.20 p.02

372.20 p.03
Note
Caution
!
Danger of damage to property and/
or the environment
Important additional information
Eye catcher Used for:
Danger
!
Danger to life and limb
1. General information
All persons involved with the assembly, operation and/or maintenance of the HON 372 gas pressure regulator must read and
understand all of the following documents:
- Technical product information 372.00 — this Honeywell document contains the technical data and dimensions of the
equipment as well as instructions concerning construction and mode of operation.
-General operating manual for gas pressure regulators and safety devices– this Honeywell document contains information
on assembly and operation as well as general information on troubleshooting.
- Operating and maintenance instructions/spare parts 372.20 – this Honeywell document contains more detailed information
on assembly and operation of the gas pressure regulator.
There are national laws and regulations for all sorts of jobs on gas pressure governors, from planning to maintenance. Be sure to
comply. (In Germany, for instance, DVGW work sheets G 600, G 459/II, G 491 and G 495.)
Inspection and maintenance intervals depend mostly on operating conditions and the nature and properties of the gas. There
are no general rules or recommendations for intervals. For Germany, we recommend to consider maintenance intervals as
stated in DVGW work sheet G 495 in a rst instance. However, in the mid-term, intervals must be adapted to the requirements of
each specic equipment.
During maintenance, components must be cleaned and then checked thoroughly. This is necessary even if there have not been
any unusual observations during operation and/or functional testing. Checks must focus, in particular, on diaphragms and seals
and all movable parts and their respective bearings. Any and all defective parts must be replaced with new ones. The same
applies to
O rings removed during disassembly.
Do not use any spare/wear parts and/or oils & lubricants not specically recommended in the Honeywell operating and
maintenance instructions for spare parts.
In the event spare/wear parts and/or lubricants & oils other than those specically recommended are used, Honeywell shall not
be liable for any defects and/or consecutive damages attributable to such use of illegal parts, lubricants, oils etc.
Item numbers mentioned in the specic operating and maintenance instructions correspond with the numbers in the spare
parts lists and drawings.
Some parts in the lists and drawings are marked with a letter "W". We recommend to always have a reserve of those parts in
stock for maintenance purposes. Those spare parts are put together in another separate list at the end of the spare parts list.
1.1 Safety information
In this manual, safety information is highlighted by means of the following titles and eye catchers:

Pressure-compensating
diaphragm
DN 25 and DN 50
DN 150 valve seat – Ø 150
Valve rod
Lever
O ring Pressure-compensating
diaphragm
O ringO ring Pressure-compensating
diaphragm
DN 80 and DN 100
O ringPressure-compensating
diaphragm
O ring
2. Specic maintenance instructions
2.1 Pressure-compensating diaphragm
During assembly, observe the correct mounting position of the valve.
2.2 Valve stem
In order to secure the diaphragm against unintentional movements when loosening and/or tightening the nut, secure the valve
stem accordingly. The valve stem has a transverse bore for that purpose.
372.20 p.04
DN 150 valve seat – Ø 100

Tightening torques
MAin Nm
Screws & bolts –
item no.
2.3 Tightening torques MA
2.4 Lubricants
Components Lubricants HON part no.
All O rings and all sliding surfaces Silicone grease
mounting and loop areas of diaphragms (apply a thin lm) 27081
(except diaphragms without beads)
Balls (412, 421)
all fastening screws and screwed pipe connections Silicone grease 27081
Tightening torques
MAin Nm
Screws & bolts –
item no.
1 20 201 20
4 20 202 10
10 20 206 10
21 30 210 20
28 20 235 10
60 30 239 20
63 40 301 20
73 40 302 20
74 40 306 10
101 20 310 30
103 10 338 10
106 5 342 20
110 20 416 10
133 10 418 20
137 20 509 10
2.5. Screw locking methods & devices
Components Method/device HON part no.
Valve cone (413)
Eye-bolts (100, 200, 343) WEICONLOCK 302-21 525045
Locking screws (11, 77)
372.20 p. 05

63
4, 5
1
W 2
W 8
9
10
11
12
W 7
13 W
14 W
15
16
17
18 W
19
20
21
22
1
-0,5
23
24
25
29
30 W
31
28
32 W
33
26
27 W
X
MA
Z
Y
MA
MA
W
MA
MA
3.1.1.1 Spare parts drawings HON 372 DN 25 and DN 50
Version with SSV K1a/K2a
MABe sure to comply with tightening torques in table on page 05.
WParts should be held in stock for maintenance purposes.
372.20 p.06
Regulating assembly
(only DN50)
(only DN50)
(only DN50)
(only DN50)
(only DN50)
W
DN 25 through DN 150
X
DN 25 through DN 150
V
Version with remote indication "CLOSED"
DN 25 through DN 150
Y
DN 25 through DN 150
SSV K1a/K2a

22
8 W
9
10
11
MA
3.1.1.2 Spare parts drawings HON 372 DN 25 and DN 50
Version with SSV K16/K17
MABe sure to comply with tightening torques in table on page 05.
WParts should be held in stock for maintenance purposes.
372.20 p. 07
(only DN 25 and DN 50)
see 670.20

Item Part no.
no. Denomination Number W Materials DN 25 DN 50
372.20 p.08
3.1.2 Spare parts drawings HON 372 DN 25 and DN 50
W Parts should be held in stock for maintenance purposes
German abbreviations stand for the following materials:
St ... steel LM ... light metal/alloy GMs ... cast brass
NSt ... stainless steel Ms ... brass GZn ... cast zinc
FSt ... spring steel GS ... cast steel AlBz ... aluminium bronze
NFSt ... stainless spring steel GGG ... spheroidal graphite cast iron K ... synthetic materials
Bz ... bronze GBz ... cast bronze KG ... gummous synthetic
materials
Cu ... copper GLM ... cast light metal SSt ... foamed materials
1 Hex screw 4 St 10398 10398
2 Sealing ring 4 W LM 18710 18710
3 Body, optional:
3 Body with SSV; PN16 1 GGG 15055018 15056030
3 Body with SSV; PN16 1 GS 15055003 15056014
3 Body with SSV; PN16 1 GS 15055007 15056025
3 Body with SSV; class 150 1 GGG 15055001 15056013
3 Body with SSV; class 150 1 GS 15055004 15056010
3 Body with SSV; class 150 1 GS 15055008 15056027
3 Body without SSV; PN16 1 GGG 15055019 15056019
3 Body without SSV; PN16 1 GS 15055005 15056023
3 Body without SSV; PN16 1 GS 15055009 15056028
3 Body without SSV; class 150 1 GGG 15055002 15056024
3 Body without SSV; class 150 1 GS 15055006 15056051
3 Body without SSV; class 150 1 GS 15055010 15056029
4 Hex screw 8 St 10630 10630
5 Lock washer 8 St 14121 14121
6 SSV cover, optional:
6 SSV cover 2 GGG 15056031 15056031
6 SSV cover 2 GS 15056032 15056032
6 SSV cover 2 GS 15056033 15056033
7 O ring 1 W KG 21261 21261
8 O ring 1 W KG 20832 20832
9 Lock washer 3 St 14122 14122
10 Hex nut 3 St 5559 5559
11 Locking screw 3 St 12473 12473
12 Clamping plate 1 St 15056008
13 O ring 1 W KG 20513
14 O ring 1 W KG 520110 21258
15 Flat head screw 3 St 11145
16 Metal foam ring 1 NSt 15025006 15026027
17 Pin 1 St 15026013 15026013
18 O ring 1 W KG 21271 520001

Item Part no.
no. Denomination Number W Materials DN 25 DN 50
372.20 p.09
19 Cover, optional:
19 Cap 1 GGG 15055012 15056054
19 Cap 1 GS 15055013 15056055
19 Cap 1 GS 15055014 15056056
20 Lock washer 2 St 14121 14119
21 Hex screw 2 St 10630 510107
22 Dowel pin 2 St 17269 17269
23 Cable box 1 24099 24099
24 Proximity switch 1 24160 24160
25 Relay 230 V, 1 channels 1 24402 24402
25 Relay 230 V, 2 channels 1 24403 24403
26 Sealing cap 1 St 10633 10633
27 O ring 1 W KG 21250 21250
28 Hex screw 4 St 10066
29 Lock washer 4 St 14122
30 Sealing ring 1 W LM 518017 518017
31 Screwed connection 1 St 530047 530047
32 Sealing ring 1 W LM 518017 518017
33 Sealing cap 1 St 10363 10363

60
65
64
63
W 62
61
22
9
10
11
66 W
67
68
69
70 W
71
72
73
74
75
W 76
77
MA
MA
MA
MA
MA
3.2.1 Spare parts drawings HON 372 DN 80 thru DN 150
MABe sure to comply with tightening torques in table on page 05.
WParts should be held in stock for maintenance purposes.
372.20 p.10
Regulating assembly
Version DN150 with
regulating assembly 3
SSV K1a/K2a

Item Part no.
no. Denomination Number W Materials DN 80 DN 100 DN 150
370.20 p.11
9 Lock washer 3 St 14122 14122 14122
10 Hex nut 3 St 5559 5559 5559
11 Locking screw 3 St 12473 12473 12473
22 Dowel pin 2 St 17269 17269 17269
23 Cable box 1 24099 24099 24099
24 Proximity switch 1 24160 24160 24160
25 Relay 230 V, 1 channels 1 24402 24402 24402
25 Relay 230 V, 2 channels 1 24403 24403 24403
26 Sealing cap 1 St 10633 10633 10634
27 O ring 1 W KG 21250 21250 21252
30 Sealing ring 1 W LM 518017 518017 518017
31 Screwed connection 1 St 530047 530047 530047
32 Sealing ring 1 W LM 518017 518017 518017
33 Sealing cap 1 St 10363 10363 10363
60 Hex screw 4 St 10630 10630
61 Lock washer 4 St 14121 14121
62 O ring 1 W KG 20428 20428
63 Hex screw 8 St 10630 510001 510113
64 Lock washer 8 St 14121 14119 14116
65 SSV cover, optional:
65 SSV cover 2 GGG 15057016 15058013 15059014
65 SSV cover GS 15057017 15058014 15059015
65 SSV cover GS 15057018 15058015 15059016
66 O ring 1 W KG 21263 21266 520082
67 Body, optional:
67 Body with SSV; PN16 1 GGG 15057101 15058101 15059001
67 Body with SSV; PN16 1 GS 15057103 15058103 15059005
67 Body with SSV; PN16 1 GS 15057105 15058105 15059009
67 Body with SSV; class 150 1 GGG 15057102 15058102 15059002
67 Body with SSV; class 150 1 GS 15057104 15058104 15059006
67 Body with SSV; class 150 1 GS 15057106 15058106 15059010
67 Body without SSV; PN16 1 GGG 15057151 15058151 15059003
67 Body without SSV; PN16 1 GS 15057153 15058153 15059007
67 Body without SSV; PN16 1 GS 15057155 15058155 15059011
67 Body without SSV; class 150 1 GGG 15057152 15058152 15059004
67 Body without SSV; class 150 1 GS 15057154 15058154 15059008
67 Body without SSV; class 150 1 GS 15057156 15058156 15059012
3.2.2Spare parts drawings HON 372 DN 80 through DN 150

Item Part no.
no. Denomination Number W Materials DN 80 DN 100 DN 150
372.20 p.12
68 Metal foam ring 1 NSt 15027023 15028008 15059035
69 Pin 1 NSt 15057025 15057025 15059044
70 O ring 1 W KG 21272 21267 520107
71 Cover, optional:
71 Cap 1 GGG 15057020 15058017 15059018
71 Cap 1 GS 15057021 15058018 15059019
71 Cap 1 GS 15057022 15058019 15059020
72 Lock washer 3 St 14119 14119 14116
73 Hex screw 3 St 510001 510001 510113
74 Hex nut 4 St 13183
75 Lock washer 4 St 14116
76 O ring 1 W KG 520106
77 Locking screw 4 St 510114

100
W 103 101 102
104
105
106
107
W 114
109
110
108
111
112
113
115
W 117
W 118
119
120
122
W 121
128
129 W
130 W
132
131
133
W 124
W 123
W 125
W 126
137
138
134
135 W
W 116
136 W
127
MAMA
MA
MA
MA
MA
3.3.1 Spare parts drawing regulating assembly 1
MABe sure to comply with tightening torques in table on page 05.
WParts should be held in stock for maintenance purposes.
372.20 p.13
Type
DN 25 valve seat Ø 25, Ø 31
DN 50 valve seat Ø 31
Valve seat – Ø 50

Item Part no.
no. Denomination Number W Materials DN 25 DN 50
372.20 p.14
3.3.2 Spare parts list regulating assembly 1
100 Eye bolt 1 St 10487 10487
101 Cover, diaphragm housing 1 LM 15066064 15066064
102 Hex nut 1 St 5559 5559
103 O ring 1 W KG 520104 520104
104 Lock washer 1 St 14122 14122
105 Valve cone 1 LM 10004992 10004992
106 Clamping bolt 1 NSt 15065001 15065001
107 Axial bearing 1 KG 15026024 15026024
108 Spring plate 1 LM 15065002 15065002
109 Diaphragm disc 1 LM 15056006 15056006
110 Hex screw 20 St 510120 510120
111 Washer 20 St 8281 8281
112 Diaphragm housing, UP 1 GLM 15066004 15066004
113 Diaphragm housing, LP 1 GLM 15066003 15066003
114 Diaphragm 1 W KG 15056001 15056001
115 Pressure spring 1 FSt 15056093 15056093
116 Sealing ring 1 W LM 18710 18710
117 O ring 1 W KG 21252 21252
118 Guide belt 1 W KG 15056251 15056251
119 Ring segment, optional:
119 Ring segment for valve seat Ø25 2 Ms 15025018
119 Ring segment for valve seats Ø31, Ø50 2 St 10008612 10008612
120 Diaphragm plate, optional:
120 Diaphragm plate for valve seat Ø25 1 LM 15025015
120 Diaphragm plate for valve seat Ø31 1 LM 15026805 15026805
120 Diaphragm plate for valve seat Ø50 1 LM 15026012
121 Diaphragm, optional:
121 Diaphragm for valve seat Ø25 1 W KG 15025011
121 Diaphragm for valve seat Ø31 1 W KG 15026801 15026801
121 Diaphragm for valve seat Ø50 1 W KG 15026002
122 Pressure disc, optional:
122 Pressure disc for valve seat Ø25 1 LM 15025014
122 Pressure disc for valve seat Ø31 1 LM 15026804 15026804
122 Pressure disc for valve seat Ø50 1 LM 15026011
123 Valve cone, optional:
123 Valve cone for valve seat Ø25 1 W LM 10006184
123 Valve cone for valve seat Ø31 1 W LM 10009199 10009199
123 Valve cone for valve seat Ø50 1 W LM 15056035

Item Part no.
no. Denomination Number W Materials DN 25 DN 50
372.20 p.15
124 Valve seat, optional:
124 Valve seat Ø25 1 W LM 15025012
124 Valve seat Ø31 1 W LM 15025003 15056802
124 Valve seat Ø50 1 W LM 15056009
125 Sealing ring, optional:
125 Sealing ring for valve seat Ø25 1 W KG 10006183
125 Sealing ring for valve seat Ø31 1 W KG 10009215 10009215
125 Sealing ring for valve seat Ø50 1 W KG 10009217
126 O ring 1 W KG 20451 20451
127 Reducer, optional:
127 Reducer for valve seat Ø25 1 LM 15055017
127 Reducer for valve seat Ø31 1 LM 15056803 15056803
128 Screwed connection 1 St 530047 530047
129 Sealing ring 1 W LM 518017 518017
130 Sealing ring 1 W LM 518017 518017
131 Threaded adapter 1 St 15065003 15065003
132 Dosing screw 1 NSt 10005098 10005098
133 Screwed connection 1 St 530038 530038
134 Hex nut 1 St 10009045 10009045
135 Valve stem, complete 1 W NSt/Ms//St 15065300 15066300
136 Valve plate, at option:
136 Valve plate for valve seat Ø25 1 W LM 10023463
136 Valve plate for valve seat Ø31 1 W LM 10023464 10023464
136 Valve plate for valve seat Ø50 1 W LM 15026028
137 Lock washer 1 St 14133 14133
138 Hex nut 1 St 5692 5692

W 228
200
W 204 201
203
205
206
207
W 214
209
210
208
211
212
213
215
W 218
W 219
220
223
W 224
W 221
229
231 W
233
232
234
W 226
W 225
W 227
239
240
236
238 W
230 W
235 W
202
222
237 W
W 216
217
MA
MAMA
MA
MA
MA
3.4.1 Spare parts drawing regulating assembly 2
MABe sure to comply with tightening torques in table on page 05.
WParts should be held in stock for maintenance purposes.
372.20 p.16
Version with
valve seats -Ø 60 and -Ø 80
Valve seat -Ø 100

Item Part no.
no. Denomination Number W Materials DN 25 DN 50
372.20 p.17
200 Eye bolt 1 St 10021 10021
201 Cover, diaphragm housing 1 LM 15066065 15066065
202 Hex nut 1 St 13120 13120
203 Lock washer 1 St 14119 14119
204 O ring 1 W KG 20428 20428
205 Valve cone 1 LM 15801729 15801729
206 Clamping bolt 1 NSt 15067001 15067001
207 Axial bearing 1 KG 15067004 15067004
208 Spring plate 1 LM 15067002 15067002
209 Diaphragm disc 1 LM 15056040 15056040
210 Hex screw 32 St 10629 10629
211 Washer 32 St 8281 8281
212 Diaphragm housing, UP 1 GLM 15066036 15066036
213 Diaphragm housing, LP 1 GLM 15067003 15067003
214 Roll diaphragm 1 W KG 15056039 15056039
215 Pressure spring 1 FSt 15056095 15056095
216 Sealing ring 1 W LM 18740 18740
217 Centring plate 1 LM 15801717 15801717
218 O ring 1 W KG 20607 20607
219 Guide belt 1 W KG 15057251 15057251
220 Ring segment 2 St 10009129 10009129
221 Pressure-compensating diaphragm, optional:
221
Pressure-compensating diaphragm for valve seat Ø 60 1 W KG 10009120 10009120
221
Pressure-compensating diaphragm for valve seat Ø 80 1 W KG 10009134 10009134
221
Pressure-compensating diaphragm for valve seat Ø100 1 W KG 10009137
222 Diaphragm plate, optional:
222 Diaphragm plate for valve seat Ø 60 1 LM 15057042 15057042
222 Diaphragm plate for valve seat Ø 80 1 LM 15057041 15057041
222 Diaphragm plate for valve seat Ø100 1 LM 15058027
223 Pressure disc, optional:
223 Pressure disc for valve seat Ø 60 1 LM 10009124 10009124
223 Pressure disc for valve seat Ø 80 1 LM 10009125 10009125
223 Pressure disc for valve seat Ø100 1 LM 10009128
224 Valve cone, optional:
224 Valve cone for valve seat Ø 60 1 W LM 10009208 10009208
224 Valve cone for valve seat Ø 80 1 W LM 10009207 10009207
224 Valve cone for valve seat Ø100 1 W LM 10009206
225 Valve seat, optional:
225 Valve seat Ø 60 1 W LM 15027003 15028004
225 Valve seat Ø 80 1 W LM 15027002 15028005
225 Valve seat Ø100 1 W LM 15058026
3.4.2 Spare parts list regulating assembly 2

Item Part no.
no. Denomination Number W Materials DN 25 DN 50
372.20 p.18
226 Sealing ring, optional:
226 Sealing ring for valve seat Ø 60 1 W KG 10009218 10009218
226 Sealing ring for valve seat Ø 80 1 W KG 10009219 10009219
226 Sealing ring for valve seat Ø100 1 W KG 10009220
227 O ring 1 W KG 20442 20442
228 Reducer, optional:
228 Reducer for valve seat Ø60 1 LM 15057803 15057803
228 Reducer for valve seat Ø80 1 LM 15057802 15057802
229 Screwed connection 1 St 530047 530047
230 Sealing ring 1 W LM 518017 518017
231 Sealing ring 1 W LM 518017 518017
232 Threaded adapter 1 St 15065003 15065003
233 Dosing screw 1 NSt 10005098 10005098
234 Screwed connection 1 St 530038 530038
235 O ring 1 W KG 20442 20442
236 Hex nut 1 St 10009109 10009109
237 Valve stem, complete 1 W NSt/Ms/St 15067300 15067300
238 Valve plate, at option:
238 Valve plate for valve seat Ø 60 1 W LM 15027020 15027020
238 Valve plate for valve seat Ø 80 1 W LM 15027009 15027009
238 Valve plate for valve seat Ø100 1 W LM 15028009
239 Lock washer 1 St 14116 14116
240 Hex nut 1 St 13203 13203

343
Z
328
327 W
329 W
305
300
301
302
W
303
W
304
306
307
308
330
311
331 332
W
333
310
W 314
312
313
309
315
W 316
W 317
W 316
318
319 W 320
321
W 323
W 324
W 325
W 326
334 W
335
336 W
337 W
322
338
339 W
340 W
341
342
Z
MA
MA
MAMA
MA
MA
3.5.1 Spare parts drawing regulating assembly 3
MABe sure to comply with tightening torques in table on page 05.
WParts should be held in stock for maintenance purposes.
372.20 p.19
Version with
valve seat Ø100
Valve seat Ø140

Item Part no.
no. Denomination Number W Materials DN 80
372.20 p.20
300 Drain plug 1 KG 26162
301 Cover, diaphragm housing 1 LM 15066065
302 Hex screw 1 St 510115
303 O ring 1 W KG 20428
304 Sealing ring 1 W LM 18710
305 Valve cone 1 LM 10004992
306 Threaded bolt 1 St 15801768
307 Washer 1 NSt 514007
308 Spring plate 1 LM 15801766
309 Diaphragm disc 1 LM 15058022
310 Hex screw 24 St 8182
311 Washer 24 St 8271
312 Diaphragm housing, UP 1 GLM 15068024
313 Diaphragm housing, LP 1 GLM 15069023
314 Roll diaphragm 1 W KG 15058021
315 Spring plate 1 LM 15801766
316 Guide belt 2 W KG 15059251
317 O ring 1 W KG 20619
318 Diaphragm plate, optional:
318 Diaphragm plate for valve seat Ø100 1 LM 15059051
318 Diaphragm plate for valve seat Ø140 1 LM 15059036
319 Ring segment 2 St 15059046
320 Pressure-compensating diaphragm, optional:
320 Pressure-compensating diaphragm for valve seat Ø100 1 W KG 15059057
320 Pressure-compensating diaphragm for valve seat Ø140 1 W KG 15059024
321 Pressure disc, optional:
321 Pressure disc for valve seat Ø100 1 LM 15059052
321 Pressure disc for valve seat Ø140 1 LM 15059037
322 Flat head screw 2 St 510116
323 Valve cone, optional:
323 Valve cone for valve seat Ø100 1 W LM 15059050
323 Valve cone for valve seat Ø140 1 W LM 15801757
324 Valve seat, optional:
324 Valve seat Ø100 1 W LM 15059048
324 Valve seat Ø140 1 W LM 15801759
325 Sealing ring, optional:
325 Sealing ring for valve seat Ø100 1 W KG 15059054
325 Sealing ring for valve seat Ø140 1 W KG 15801762
3.5.2 Spare parts list regulating assembly 3