Flowserve LPS Pneumatic Heavy-Duty Actuator Series - Manual (Page 27)

27
LPS Series Heavy-Duty Actuators FCD LFENIM0001-02-AQ – 5/15
flowserve.com
6
Disposal of
Decommissioned
Actuators
Actuators that are to be decommissioned permanently must have the stored energy in the spring neutralized. This can
be done in several ways:
6.1 Decommissioning by filling with cement – following proper removal of the actuator from any hazardous areas,
the spring module may be neutralized by cutting a small opening in the end or side of the spring can and filling
the spring can with liquid cement and allowing the concrete to dry. This will eliminate any possibility of spring
decompression if it were to be removed from the actuator without following proper procedures.
6.2 Decommissioning by cutting the spring – following proper removal of the actuator from any hazardous areas,
the spring module may be neutralized by cutting a small opening in the side of the spring can and accessing the
spring coils. The spring coils are then cut using a torch to relieve all compression and stored energy. Care should
be taken that the opening in the spring can is sufficiently small to prevent any pieces of the spring from escaping
when the spring is cut.
a WARNING: Failure to neutralize the spring in the actuator or to follow these instructions could lead to injury to
personnel or property damage.
Either method is acceptable to Flowserve, although the method outlined in the first point is preferred, as the stored
energy in the spring is not suddenly released when the spring is cut. Hence, this is the safest method.
No actions need be taken on any other portions of the actuator to decommission it.