Flowserve 3400MD Digital Positioner Manual de usuario descargar pdf (Pagina 5)

Logix 3400MD Digital Positioner FCD LGENIM3404-08-AQ – 5/15

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The vent assembly is located in the upper left side of the positioner.

The gaps around the assembly as noted by the arrows should be

sealed for long term storage

A small desiccant package as shown can be included under the

sealing tape to ensure proper protection.

All of the edges around the vend assembly should be sealed similar to

the picture below.

The sealing tape and desiccant should be removed when instrument

air is permanently applied to the positioner.

3.3 Pre-installation Inspection

If a valve control package has been stored for more than one year,

inspect one actuator by disassembling it per the appropriate Instal-

lation, Operation, and Maintenance Instructions (IOM) prior to valve

installation. If O-rings are out-of-round, deteriorated, or both, they

must be replaced and the actuator rebuilt. All actuators must then

be disassembled and inspected. If the actuator O-rings are replaced,

complete the following steps:

1. Replace the pressure-balance plug O-rings.

2. Inspect the solenoid and positioner soft goods and replace

as necessary.

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Flowserve 3400MD Digital Positioner Manual de usuario Pagina 5