Flotronic F 500 series, Installation, Operation And Maintenance Manual

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Section 17 - Pulsation Dampers
This section is common to all pumps.
Pulsation dampers are obtainable to be fitted to FPL pumps but vary depending upon the individual
model considered.
The maintenance instructions given below apply to all models, although the mounting of the damper on
to the pump may vary slightly.
MAINTENANCE
Before carrying out any maintenance or servicing, the air system must be isolated and the connections
disconnected from the process line. If integral, turn off air supply at the pump. If separate, disconnect
from the supply located at the side of the spool valve on top of the damper.
DISASSEMBLY
Use an M5 allen key to remove the socket cap screws holding the spool valve in position. This will enable
you to remove the spool valve.
Undo the 16 nuts and bolts around the damper and remove the air dome. This exposes the PTFE
faced diaphragm with spool valve rod attached. Place the rod into a vice fitted with soft jaws and unscrew.
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Pulsation Dampers