Page 166 - Chemical Process Equipment - Selection and Design

138 FLUID TRANSPORT EQUIPMENT

(a) Single-suction, 1800 rpm standard pumps: (b) Single-suction, 3600 rpm standard pumps:

U.S. G.P. M.
0 Horsepower
In
Suction and Approximate Range at 1.0
U.S. G.P.M. Key No. Discharge cost Sp. Gr.
5x4 $2250 40-60
Horsepower 4x3 1950 20-40
Suction and Approximate Range at 1.0 3x2; 1650 7;-20
Key No. Discharge cost Sp Gr 4x4 1800 3-20
1 4x3 $1 200 7;-25 5x5 1950 5-30
2 6x4 1350 20-30 2x 1; 1200 $2
3 4x3 1200 15-25 2;x2 1350 1-3
4 5x4 1500 15-30 3 x 2; 1500 2-7;
5 2x1; 750 2-7; 4x3 1650 2-77
6 2; x 2 1050 3-10 (c) Single-suction 1800 and 3600 rpm refinery pumps for elevated
7 4x3 1200 5-15 temperatures and pressures:
8 5x4 1350 7;-20
9 5x4
(1 200 rprn) 1500 3-74
10 12x1; 700 1-2
11 2x2 750 1;-3
12 3 x 2;
(1200 rprn) 1050 1 4-3
13 4x3
(1200 rprn) 1200 2-5
14 5x4
(1200 rprn) 1350 2-5
15 2; x 2; 500 2-1;
16 3x3 600 1-2

U.S. G. P. M
Horsepower
Key Suction and Approximate Range at 1.0
No. Discharge cost Sp Gr
1 2x 1; $3400 7;-30
2 3 x 2 (3600 rprn) 3700 15-50
3 4x3 4300 20-75
4 6x4 4800 40-1 25
5 3x2 4200 5-1 5
6 4 x 3 (1800 rprn) 4500 7;-20
7 6x4 5400 15-40
8 2x1; 3400 1-5
9 3 x 2 (1800 rprn) 3700 2-7;
10 4x3 4300 3-10
11 6x4 4800 5-15
Figure 7.8. Typical capacity-head ranges of some centrifugal pumps, their 1978 costs and power requirements. Suction and discharge are in
inches (Evans, 1979, Vol. 1).