Pulsafeeder Isochem RGT IOM - Manual (Page 11)

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7. Do not spring piping, either suction or discharge, when mating up to the pump. Use supports or
hangers at intervals as required. When necessary, provide for thermal expansion and contraction
so that no strain is placed upon the pump.
8. Check all bolts and nuts for tightness. Correct any conditions that could cause destructive
vibration or leakage.
9. When required, provide a proper system for containment can flush and/or drain.
10. If start-up screens are used, be sure they do not clog and starve the suction system. Start-up
screens should be removed prior to placing the system into regular operation.
11. If a flexible suction line is used, select the materials and install them so that they do not collapse
(causing a starved condition).
12. When taking suction from a tank or vessel, avoid entry of sludge, solids, etc. into the suction line
by placing the suction line inlet above maximum level of solids.
13. When a bypass system is used to control flow from the pump, the bypassed fluid should be piped
back to the suction vessel to prevent heat build-up due to recirculation. If it is absolutely
necessary to pipe bypass back to the pump suction line, the point of entry should be at least 10
pipe diameters away from the suction inlet. Provision for cooling should be made in the event of
excessive heat buildup caused by fluid recirculation.
14. Where pumped fluids may solidify, crystallize, precipitate etc., provision should be made to
thoroughly flush the pump and associated piping prior to periods of shutdown. Pay particular
attention to proper flushing and draining of the magnetic coupling area because this area will not
self drain. There is a drain plug in the rear housing for access to this area.