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STI S.r.l.
– Via Dei Caravaggi 15, 24040 Levate (BG) – ITALY www.imi-critical.com
Manual 5400, rev. 05 02/2018
– RTQHS
30
Table 5: Hydraulic cylinder
Item
Description
Qty
Material
Spare Parts
1
Back-up ring
1
NBR
#
2
Back-up ring
1
NBR
#
3
Bushing
1
Steel/Bronze/PTFE
4
Cylinder tube
1
Carbon steel
5
Stem nut
1
Carbon steel
6
Plug
2
Carbon steel
7
Retaining flange
1
Carbon steel
8
Tie rod nut
(**)
Carbon steel
9
Sliding guide
2
PTFE
#
10
Piston seal
1
PTFE/NBR (*)
#
11
Piston
1
Carbon steel
12
Rod seal
1 (2)
PTFE/NBR (*)
#
13
Washer
1
Carbon steel
14
Seal washer
2
Carbon steel/NBR
15
O-ring
1
NBR (*)
#
16
O-ring
1
NBR (*)
#
17
Stem
1
Alloy steel
18
Drain plug
2
Carbon steel
19
Head flange
1
Carbon steel
20
End flange
1
Carbon steel
21
Tie rod
(**)
Carbon steel
22
Screw
4
Carbon steel
23
Stopper assembly
1
Carbon steel/Stainless steel (See
table 6)
(*) NBR standard material for temperature range from -30°C up to +100°C.
(**) Quantity depends on the model.
