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11. Disassembly of B925 - B925B
13. Unthread the upper piston (66), the spring (31),
the nut (77) and gauge (154) [only DN25--40, 65]
from the central piston (13).
15. Remove the seal rings (91 and 90) from the
upper piston (66).
17. Unscrew the socket screw (34), disassemble the
part assembly (35), the lower piston (53), the
adjusting sleeve (58) from the cylinder (9).
The Company BARDIANI VALVOLE reserves the right to modify its products at any time without prior notice.
77
66
31
154
13
91
66
90
9
53
34
58
35
14. Remove the seal rings (16 and 19) and the guide
bushing (17) from the stopper (18).
16. Remove the seal rings (4) from the central piston
(13).
82
53
61
18. Remove the seal ring (83) from the adjusting sleeve
(58), seal rings (82 and 61) from the lower piston (53)
and seal rings (81 and 121), the guide bushing (120)
from the part assembly (35).
19
17
18
16
13
4
83
58
81
121
120
35
(GB-IST-B925-0910) 15/35
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