Installation; Preparation For Installation; Mounting The Device - Samson 3275A Mounting And Operating Instructions

5 Installation

The work described in this section is only to
be performed by personnel appropriately
qualified to carry out such tasks.

5.1 Preparation for installation

Before mounting, make sure the following
conditions are met:
− The actuator is not damaged.
− The type designation, material and tem-
perature range of the actuator match the
ambient conditions (temperatures etc.).
See the 'Markings on the device' section
for nameplate details.
Proceed as follows:
Î Lay out the necessary material and tools
to have them ready during mounting.
Î Check any pressure gauges mounted on
valve accessories to make sure they func-
tion properly.
Î When the valve and actuator are al-
ready assembled, check the tightening
torques of the bolted joints (u AB 0100).
Components may loosen during trans-
port.

5.2 Mounting the device

Depending on the version, SAMSON control
valves are either delivered with the actuator
already mounted on the valve or the valve
and actuator are delivered separately. When
delivered separately, the valve and actuator
must be assembled together on site. Proceed
EB 8314-1 EN
as follows to mount the actuator and before
start-up.
WARNING WARNING
! !
Risk of personal injury due to exhaust air
being vented.
The actuator is operated with air. As a result,
air is vented during operation.
Î Wear eye and hearing protection when
working near the actuator.
WARNING WARNING
! !
Crush hazard arising from the moving
actuator stem.
Î Do not insert hands or finger into the
yoke while the air supply is connected to
the actuator.
Î Before working on the actuator, discon‑
nect and lock the pneumatic air supply
as well as the control signal.
Î Do not impede the movement of the
actuator stem by inserting objects into
the yoke.
NOTICE
!
Risk of actuator damage due to excessively
high or low tightening torques.
Observe the specified torques when tighten‑
ing actuator components. Excessive tighten‑
ing torques lead to parts wearing out more
quickly. Parts that are not tightened far
enough may loosen.
Î Observe the specified tightening torques
(u AB 0100).
Installation
5-1