Samson 3525, Монтаж и эксплуатация

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30 EB 8823 EN
Operation
6 Operation
Immediately after completing mounting and
start-up (see section 5), the valve is ready for
use.
Crush hazard arising from moving parts (ac-
tuator and plug stem).
Do not insert hands or finger into the yoke
while the valve is in operation.
Risk of personal injury when the actuator
vents.
Wear eye protection when working in close
proximity to the control valve.
Risk of personal injury due to sudden escape
of process medium.
The valve has a safety bleed to detect dam-
aged or worn O-rings. The process medium
may escape suddenly and at high pressure.
− Wear protective clothing, gloves and eye-
wear when working near or on the valve.
−
Do not stay in the range of the safety bleed
longer than necessary.
Operating disturbed by a blocked actuator
and plug stem.
Do not impede the movement of the actuator
or plug stem by inserting objects into their
path.
6.1 Reversing the flow
direction
The medium flows through the valve in the
direction indicated by the arrow. The stan -
dard valve body version normally operates
in the flow-to-open direction (FTO). The me-
dium flows across the plug from bottom to
top. The compact valve body versions nor -
mally operate in the flow-to-close direction
(FTC). The medium flows across the plug
from top to bottom.
The flow direction can be reversed from FTO
to FTC and vice versa.
Risk of valve damage due to altered forces.
When reversing the flow direction, altered
forces occur which may damage the valve if
incorrectly calculated.
To reverse the flow direction, contact
SAMSON’s After-sales Service department.
WARNING !
WARNING
!
WARNING
!
NOTICE
!
NOTICE
!