Pulsation Damper PDF PG36 Printable Version
Pressure Pulsation Dampers Connection Options for Close Coupling
A SMALL DAMPER OF LARGE DIAMETER FITTED CLOSE TO A PUMP IS BETTER THAN A LARGE DAMPER OF SMALL DIAMETER FITTED AWAY FROM A PUMP
KEEP THE DISTANCE FROM DAMPER INTERNALS TO PUMP INTERNALS LESS THAN 10 PIPE DIAMETERS.
"PRESSURE DAMPERS THAT DO - FLOW GOES THROUGH, PRESSURE PULSES DO NOT"
2 CONNECTION (minimum) FOR IN PLACE FLUSHING BEFORE SERVICE
or if you only require flow fluctuation reduction, with no guarantee of pressure pulsation damping, then
USE THE EXTRA CONNECTION TO SAVE A "T" FOR THE SYSTEM RV, DRAIN, or GAUGE. |
STANDARDS FOR MULTIPLE & MULTIHEAD PUMPS
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MG/DUPX__"__# |
MG/TRiX__"__# |
MG/QUiNX__"__# |
DISCHARGE
SUCTION |
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In multi pump, & multi head, systems: Pressure pulsation reduction level can be guaranteed by preventing interaction between pump head check valves, and preventing resonance |
PIPING BASES part number MG/ |
SIMP-X = For 1 pump head. DUP-X = For 2 pumps or 2 individual pump heads.
TRI-X = For the confluence 3 pumps or 3 individual pump heads. QIN-X = For 5 pumps or heads.
All -- X designations prevent individual pump and valve activities from the system responses "talking to each other". |
Close coupling ensure that the small mass of the liquid column is unable to excite the pump parts by going into oscillation. True thru-flow ensures that pressure fluctuations are captured and can not by-pass. Alternately liquid mass that has to go up one hole, come to a halt, then reverse back out again in a fraction of a second, requires huge pressure fluctuations to produce this instantaneous mass reversal. |
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