Samson 3276-D, Mounting And Operating Instructions

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1-2 EB 8318 EN
Safety instructions and measures
Personal protective equipment
We recommend wearing the following personal protective equipment when handling the
Type 3276 Pneumatic Actuator:
− Protective gloves and safety footwear when mounting or removing the actuator
− Eye protection and hearing protection while the actuator is operating.
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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 features
There are two versions of the SAMSON Type 3276 Pneumatic Actuator with different fail-
safe action.
The actuator stem of the version D (direct-acting) retracts upon the air supply failure and pulls
the plug or piston stem of the mounted globe valve upward.
The actuator stem of the version R (reverse-acting) extends upon the air supply failure. It
pushes the plug or piston stem of the mounted globe valve downward.
The fail-safe action of SAMSON actuators is specified on the actuator nameplate.
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 actuator by the signal pressure, stored spring
energy or moving parts by taking appropriate precautions. Plant operators and operating
personnel 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 actuator
must be identified in a risk assessment and prevented through the corresponding safety in-
structions drawn up by the operator.
Responsibilities of the operator
Operators are responsible for proper use and compliance with the safety regulations. Opera-
tors are obliged to provide these mounting and operating instructions as well as the refer-
enced documents to the operating personnel and to instruct them in proper operation. Fur-
thermore, operators must ensure that operating personnel or third parties are not exposed to
any danger.