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Plunger pump packing in Gasoline service

Plunger pump packing in Gasoline service

Plunger pump packing in Gasoline service

(OP)
I'd appreciate comments of plunger (triplex) pump packing in gasoline service (100°F, Ps= 30 psig, Pd= 665 psig, 185 RPM).

Pump model is Wheatley HP100L. Packing needs replacement from 10 to 30 days. We're using Zero emission packing sets that are Tandem Sets (2 sets of packing that create a barrier between them to capture trace emissions). Lube port is used for the leak detection system. Packing vendors indicated that lubrication is not needed (concern).  Each stuffing box has only one port at this time.

Selection of packing looks right to me so plan is to confirm all dimensions are OEM to eliminate plunger or stuffing box problems. There is only damper in the Discharge line. There is no damper in the suction line but not sure how it may affect.

I'd appreciate your comments and ideas. Thanks.

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