Samson 2489/58 Series Mounting And Operating Instructions page 6

Safety instructions and measures
Personal protective equipment
We recommend checking the hazards posed by the process medium being used (e.g.
u GESTIS (CLP) hazardous substances database).
Î Provide protective equipment (e.g. safety gloves, eye protection) appropriate for the pro-
cess medium used.
Î Wear hearing protection when working near the valve. Follow the instructions given by
the plant operator.
Î Check with the plant operator for details on further protective equipment.
Revisions and other modifications
Revisions, conversions or other modifications of the product are not authorized by SAM-
SON. They are performed at the user's own risk and may lead to safety hazards, for exam-
ple. Furthermore, the product may no longer meet the requirements for its intended use.
Safety features
The Type 2489 Pressure-independent Control Valve (PICV) with an electric actuator without
fail-safe action does not have any special safety features.
The Type 2489 Pressure-independent Control Valve (PICV) with an electric actuator with fail-
safe action moves to a certain fail-safe position upon supply voltage failure. The fail-safe
action of SAMSON actuators is specified on the actuator nameplate.
When relieved of pressure, the valve with an open restriction without electric actuator and
Type 2430 Thermostat is opened by the force of the set point springs.
Warning against residual hazards
To avoid personal injury or property damage, plant operators and operating personnel must
prevent hazards that could be caused in the device by the process medium, the operating
pressure or by moving parts by taking appropriate precautions. Plant operators and operat-
ing personnel must observe all hazard statements, warnings and caution notes in these
mounting and operating instructions, especially for installation, start-up and service work.
We also recommend checking the hazards posed by the process medium being used (e.g.
u GESTIS (CLP) hazardous substances database).
Î Observe safety measures for handling the device as well as fire prevention and explosion
protection measures.
6 EB 3135-2 EN