STI S.r.l. – Via Dei Caravaggi 15, 24040 Levate (BG) – ITALY www.imi-critical.com
Manual 5020, rev.03 07/2021 - SC/VHS 12
6 OPERATION AND USE
6.1 Operation description
The SC/VHS type are single acting hydraulic actuator designed for on-off and control service and
applicable over a wide range of pressure, temperatures and environments.
Depending on which effect the spring is intended for, the cylinder is pressurized to move the valve
either opens or closes.
6.2 Intended use
The machinery covered in this Instruction Manual is single acting hydraulic SC/VHS actuator
type designed to operate a linear industrial valve (globe valves, gate valves, choke valves, ..)
for ON-OFF or modulating heavy duty service.
This SC/VHS actuator is produced by
STI srl
[Manufacturer] and identified by a label with a product
designation code.
STI srl
will not be liable for any possible damage or physical injury resulting from
use in other than the designated applications or by lack of care during installation, operation,
adjustment and maintenance of the machine. Such risks lie entirely with the user. Depending on the
specific working conditions, additional precautions may be requested. Considering that
STI srl
has
no direct control over particular applications, operation or maintenance conditions, it is the operator’s
responsibility to comply with all applicable safety rules.
Inform
STI srl
urgently if you face unsafe situations not described in this Instruction Manual. It is the
sole responsibility of the operator to ensure that the local health and safety regulations are adhered
to.
SC/VHS actuator is designed in accordance with the applicable International Rules and
Specifications, but the following Regulations must be observed in any case:
- the general and safety regulations
- the plant specific regulations and requirements
- the proper use of personal and protective devices (glasses, clothing, gloves, etc)
- the proper use of tools, lifting and transport equipment.
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