Page 247 - APPLIED PROCESS DESIGN FOR CHEMICAL AND PETROCHEMICAL PLANTS, Volume 1, 3rd Edition

Pumping off Liquids 21 9

QUINTUPLEX SINGLE-ACTING PUMP

Variation Above Mean, 1.8%
Variation Below Mean, 5.270
Total Variation, 7. %

72O 1440 216O 2880 360°

SEXTUPLEX SINGLE-ACTING PUMP

Variation Above Mean, 4.82%
Variation Below Mean, 9.22%
Total Variation, 14.0470

00 60° 1200 18Go 240° 3090 360°
TRIPLEX SINGLE-ACTING PUMP

Variation Above Mean, 6.1%
Variation Below Mean, 16.9y0
Total Variation, 23. %

00 1200 240° 360°
QUAD R UP1 EX SING LE-ACT IN G PUMP

Variation Above Mean, f 1. yo
Variation Below Mean, 21.575,
Total Variation, 32.5Yo

00 90° 1800 270° 360°
DUPLEX DOUBLE-ACTING PUMP

Variation Above Mean, 24.1%
Variation %elow Mean, 21.57,
Total Variation, 45.670

Figure 3-68. Reciprocating pump discharge Blow patterns. (Courtesy the Aldrich Pump Co.)