Samson 3241-1-Gas, Mounting And Operating Instructions

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6 EB 8020-1 EN
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).
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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.
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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 SAMSON.
They are performed at the user's own risk and may lead to safety hazards, for example. Fur‑
thermore, the product may no longer meet the requirements for its intended use.
Safety devices
− Upon supply air or control signal failure, the valve moves to its fail‑safe position (see sec‑
tion 3.1). The fail‑safe action of the actuator is the same as its direction of action and is
specified on the nameplate of SAMSON actuators (see actuator documentation).
− Valve class D: the safety control valves are tested according to DIN EN 161 (2013‑04).
In the event of a malfunction, the valves shut off the gas supply. They meet the strict leak‑
age requirements of Class D.
− Valve class E: the safety control valves are tested according to DIN EN 161 (1996‑08). In
the event of a malfunction, the valves shut off the gas supply. The valves meet the strict
leakage requirements of Class E and are assigned to Valve Group 2.
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 control valve by the process medium, the operat‑
ing pressure, the signal pressure or by moving parts by taking appropriate precautions. They
must observe all hazard statements, warning and caution notes in these mounting and oper‑
ating instructions.
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.