18
17
19
16
66
91
90
4
13
9
34
81
58
83
35
121
82
53
61
120
35
58
53
31
13
66
77
154
The Company BARDIANI VALVOLE reserves the right to modify its products at any time without prior notice.
(GB-IST-B935-0413) 15/24
13.
Remove the seal rings (91 and 90) from the
upper piston (66).
12.
Remove the seal rings (16 and 19) and the guide
bushing (17) from the
stopper
(18).
14.
Remove the seal rings (4) from the central piston
(13).
15.
Unscrew the socket screw (34), disassemble the
part assembly (35), the lower piston (53), the
adjusting sleeve (58) from the cylinder (9).
16.
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).
11.
Unthread the upper piston (66), the spring (31),
the nut (77) and gauge (154) [only DN25--40, 65]
from the central piston (13).
11. Disassembly of B935
11. Disassembly of B935
