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

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Section 18 - Rupture Protection Barriers & Alarm Systems
ALL PUMP SERIES
RUPTURE PROTECTION PACKAGE
INSTALLATION MAINTENANCE & OPERATION INSTRUCTIONS
The following instructions must be read in conjunction with the individual instructions relating to the
applicable Pump Series and apply to the horizontal centre line assembly only, as follows:
ACCESS TO DIAPHRAGMS
Before carrying out any maintenance or servicing, the air system and the connections must be
isolated from the process line.
To obtain access to the diaphragms and intermediate safety chamber, it is necessary to remove the
centre tie rod which carries the 5 port air system and air dome. This is carried out by unscrewing
the 1” nut on the end of the tie rod and, if necessary, restricting rotation of the air valve by gripping
the rectangular block to which it is attached, in a bench vice, incorporating soft jaws. Under no
circumstances should the 5 port air valve be held in a vice. During careful removal of the tie rod,
the dome at the nut end of the pump will be free and should be held and removed carefully without
damage to the integral ‘O’ ring, as the tie rod is withdrawn. Remove the diaphragms by prising away
the edge with fingers, (not sharp tipped tools), and rotate diaphragms anti-clockwise against each other.
A sharp tag should be sufficient to break the seal of one diaphragm, which can be removed by
unscrewing it anti-clockwise.
Carefully remove the outer separator ring, and prise out the seal retainer, located within the separator
disc against the back of the primary diaphragm. Carefully remove the ‘O’ ring over the thread, remove
the disc and unscrew the primary diaphragm.
Remove the entire twin pack diaphragm package from the opposite side, it will still be attached to the
thrust tube passing through the pump body. Place the thrust tube into a vice with soft jaws and
unscrew the package as previously described.
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Rupture Protection Barriers
& Alarm Systems