OLGAS-H
– High pressure spring return hydraulic actuator
Use and maintenance manual
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Pag. 6
Contents may change without notice
assembly of an insert bush the internal hole of which is machined (by
BIFFI or at Customer's care), according to the shape and dimensions
of the valve stem. BIFFI can supply different types of control system
following Customer's requirements.
The expected lifetime of actuator is approximately 25 years .
Figure 2
– Identification of actuator parts
1.4 DATA SHEET
2
Installation
2.1 CHECKS UPON ACTUATOR RECEIPT
❑
Check that the model, the serial number of the actuator and the
technical data reported on the identification plate correspond with
those of order confirmation (Sect. 1.2).
❑
Check that the actuator is equipped with the fittings as provided for
by order confirmation.
❑
Check that the actuator was not damaged during transportation: if
necessary renovate the painting according to the specification
reported on the order confirmation.
❑
If the actuator is received already assembled with the valve, its
Supply fluid
Hydraulic oil, special versions for fire-
resistant fluids
Operating temperature
Standard: from
–30°C to +100°C
Optional: from
–60° to +140°C
Supply pressure
Please refer to technical document:
“actuator data-sheet”
Spring cartridge
Hydraulic cylinder
Scotch-yoke
mechanism
Valve coupling
Valve position indicator
