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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
4
2.2
Identification of the Main Parts
The RTQHS actuator is composed by six main parts identified in the attached Fig. 1:
1) Scotch yoke mechanism.
2) Hydraulic cylinder
3) Spring cartridge
4) Stopper screw assembly for cylinder
5) Seal kit
6) Position Indicator
7) Stopper screw assembly for spring cartridge.
Fig. 1: Main parts for RTQHS actuator series (Spring to Close configuration)
