Flotronic F 500 series, Инструкция по установке, эксплуатации и обслуживанию

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OPERATION
A back pressure may need to be applied downstream from the damper, of approximately 2 Bar, to achieve
the optimum damping effect.
Air may occasionally be expelled from the small bleed hole in the spool valve body; this is normal and
indicates that the damper is functioning correctly.
NOTE: Diaphragm failure on a damper is a rare occurrence, however, if it should occur process liquid
will be discharged from the bleed hole to atmosphere. If this potential discharge could be hazardous it
is recommended that a rupture protection system be fitted as described in Section 18 of this manual.
Maximum air supply pressure is 7.2 Bar
ASSEMBLY
Insert the spool valve rod into the diaphragm and tighten, securing with a small amount of thread
locking compound. Do not use serrated grips or other sharp objects as they will damage this rod.
Check that the ‘O’ rings are correctly fitted inside the spool valve body, if damaged these ‘O’ rings
must be replaced. Also verify that the air dome ‘O’ ring is fitted and undamaged. Insert the spool valve
rod / diaphragm assembly through the air dome and into the spool valve body ensuring first that the
fixing screw seals are in position and then tighten the two fixing screws. This assures correct location of
the air dome and diaphragm onto the wet dish.
Place this assembly on to the damper wetted chamber. For pump mounted versions, ensure that the
two screw holes for the spool valve are aligned with the pump manifold as this guarantees the correct
position of the air supply pipe. Replace the 16 nuts and bolts, using the torque figures stated in
Section 8. Finally reconnect the air feed pipework.
50
Assembly of New Diaphragm
Assemble bolts only following
careful alignment of air dome/
diaphragm and wet dish
Typical wet dish
Spool valve body
‘O’ rings
Spool valve body
Air dome ‘O’ ring
Spool valve rod/
diaphragm assembly
Air dome
Diaphragm
Fixing Screw Seal
Fixing Screw Seal