Item Part no.
no. Denomination Number DN 25 DN 50 DN 80 DN 100 DN 150
370.20 p.29
4. Parts for maintenance purposes
2 Sealing ring 4 18710 18710
7 O ring 1 21261 21261
8 O ring 1 20832 20832
13 O ring 1 20513
14 O ring 1 520110 21258
18 O ring 1 21271 520001
27 O ring 1 21250 21250 21250 21250 21252
30 Sealing ring 1 518017 518017 518017 518017 518017
32 Sealing ring 1 518017 518017 518017 518017 518017
62 O ring 1 21268 21268
66 O ring 1 21263 21266 520082
70 O ring 1 21272 21267 520107
76 O ring 1 520106
Regulating assembly 1
103 O ring 1 520104 520104
114 Diaphragm 1 15056001 15056001
116 Sealing ring 1 18710 18710
117 O ring 1 21252 21252
118 Guide belt 1 15056251 15056251
121 Diaphragm, optional:
121 Diaphragm for valve seat ø25 1 15025011
121 Diaphragm for valve seat Ø31 1 15026801 15026801
121 Diaphragm for valve seat ø50 1 15026002
123 Valve cone, optional:
123 Valve cone for valve seat ø25 1 10006184
123 Valve cone for valve seat ø31 1 10009199 10009199
123 Valve cone for valve seat ø50 1 15056035
124 Valve seat, optional:
124 Valve seat Ø25 1 15025012
124 Valve seat Ø31 1 15025003 15056802
124 Valve seat Ø50 1 15056009
125 Sealing ring, optional:
125 Sealing ring for valve seat ø25 1 10006183
125 Sealing ring for valve seat ø31 1 10009215 10009215
125 Sealing ring for valve seat ø50 1 10009217
126 O ring 1 20451 20451
129 Sealing ring 1 518017 518017
130 Sealing ring 1 518017 518017