Samson EB 8111 EN, Монтаж и эксплуатация

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1-2 EB 8111/8112 EN
Safety instructions and measures
− Protective clothing, gloves, eye protection and respiratory protection in applications with
hot, cold and/or corrosive media
− Wear hearing protection when working near the valve
− Hard hat
− Safety harness when working at height
− Safety footwear, ESD (electrostatic discharge) footwear, if necessary
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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
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thermore, the product may no longer meet the requirements for its intended use.
Safety features
The fail-safe position of the control valve upon air supply or control signal failure depends on
the actuator used (see associated actuator documentation). When the valve is combined with
one of the following SAMSON actuators, the valve moves to a certain fail-safe position (see
the 'Design and principle of operation' section) upon supply air or control signal failure.
− Type 3371 Pneumatic Actuator
− Type 3372 Electropneumatic Actuator
− Type 3374 Electric Actuator (version with fail-safe action only)
The fail-safe action of the actuator is the same as its direction of action and is specified on
the nameplate of SAMSON actuators.
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
operating 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 operating instructions.
Hazards resulting from the special working conditions at the installation site of the valve must
be identified in a risk assessment and prevented through the corresponding safety instruc
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tions drawn up by the operator.