Know and Understand Centrifugal Pumps Episode 2 pdf

... 12. 7 29 .2 204.7 4500 1371.6 25 .4 645 12. 4 28 .8 20 3.8 5000 1 524 .0 24 .9 633 12. 2 28 .2 2 02. 9 5500 1676.4 24 .4 620 12. 0 27 .6 20 1.9 6000 1 828 .8 24 .0 61 0 11.8 27 .2 201 .o 6500 1981 .2 23.5 ... 26 .7 20 0.1 7000 21 33.6 23 .1 587 11.3 26 .2 199 .2 7500 22 86.0 22 .7 577 11.1 25 .7 198.3 8000 24 38.4 22 .2 564 10.9 25 .2 197.4...

Ngày tải lên: 13/08/2014, 09:21

... premature failure from vibrations and can damage the Radial Deflection .003" TIR Maximum. U Figure 14 -21 22 2 Know and Understand Centrifugal Pumps Figure 14-15 The external flush ... Bypass. 4. Time (cement) 21 9 Know and Understand Centrifugal Pumps When a seal is installed into a pump, and the motor started, an imaginary line is drawn, and th...

Ngày tải lên: 13/08/2014, 09:21

... tanks and sumps The Submergence Laws 197 198 198 199 20 0 20 2 20 2 20 4 20 9 21 0 21 1 21 2 21 3 2 14 21 5 22 2 22 6 22 6 22 7 22 8 23 2 23 2 23 2 23 3 23 3 23 5 23 5 23 6 23 8 23 8 23 8 ... Larry Know and understand centrifugal pumps 1 .Centrifugal pumps I.Title II.Custodio, Angel 62 1.6’7 ISBN 1856174093 No responsibility is assume...

Ngày tải lên: 13/08/2014, 09:21

... 22 = 4 x Pressure (psi) = 22 = 4 x NPSHr = 22 = 4 x Misalignment in the bearings. 2 x velocity = 23 = 8 x (BHp) requirements = 23 = 8 x maintenance costs = 23 ... go back into your process plant, and you can prevent and stop the majority of cavitation. Know and Understand Centrifugal Pumps Remember from Chapter 2, the NPSHa formula is:...

Ngày tải lên: 13/08/2014, 09:21

... & 47 F1 Know and Understand Centrifugal Pumps Cen trifug a I pumps ~ ~ ~~ ~ Centrifugal pumps perform the same function as PD pumps, but they do it differently. These pumps generate ... specs. 61 Know and Understand Centrifugal Pumps Fiaure 5 -2 The graph (Figure 5 -2) shows the useful work of a pump. Notice that the pump pumps a com...

Ngày tải lên: 13/08/2014, 09:21

... Feet 0 Fiaure 7 -2 Shut off ’ head 0 Q GPM Know and Understand Centrifugal Pumps The operator of a car would know the limits of his automobile. He would or should know if the car ... (Figure 7-5). Know and Understand Centrifugal Pumps SPECIFIC SPEED (Ns) AT FULL IMPELLER DIAMETER AT BEP 500 1.000 1.500 2. 000 2. 500 3.000 0 5 6 7 8...

Ngày tải lên: 13/08/2014, 09:21

... centrifugal pumps. See the following curve (Figure 7- 12) . 35 30 25 20 15 n 10 m I 5 Know and Understand Centrifugal Pumps and friction, can change with temperature or agitation. And both ... discharge = V2 i 2g suction + V2 i 2g discharge = 3.3 32 + 64. 32 + 7.5 62 + 64. 32 = 0.1 72 ft. suction + 0.888 ft. discharge System Hv =...

Ngày tải lên: 13/08/2014, 09:21

... understood in industry. Figure 8 -25 R 122 7 Know and Understand Centrifugal Pumps Figure 8-18 . a As mentioned earlier, the system curve with the clean and dirty filters should coincide ... (Figure 8 -20 and Figure 8 -21 ). Know and Understand Centrifugal Pumps side of the pump is separated from the activity on the discharge side of the pump. Gauge...

Ngày tải lên: 13/08/2014, 09:21

... on the curve without damaging the mechanical seal and bearings. 1 __ 135 Know and Understand Centrifugal Pumps 180" 27 0" 24 0" ~~ Figure 9-6 ~. ~- ~ ~ __ Figure ... MOST AREA 129 Know and Understand Centrifugal Pumps Rarely do design engineers request the L/D factor in their quotes. Some engineers don’t know they have the option...

Ngày tải lên: 13/08/2014, 09:21

... 147 Know and Understand Centrifugal Pumps Fiaure 11 -2 direct and indirect associated costs of its failure and replacement can be substantial. For example, a pump bearing may only cost $20 .00 ... foot is soft and it should be corrected. Go through the same procedure on the remaining feet one at a time. 10- 12) . Fiqure 10- 12 150 Know and Understand...

Ngày tải lên: 13/08/2014, 09:21