Know and Understand Centrifugal Pumps Episode 1 pps

... tandem dual seal The back-to-back double seal 14 2 14 2 14 4 14 5 15 3 15 3 15 5 15 5 15 7 15 9 16 3 16 7 17 1 17 1 17 1 17 2 17 3 17 3 17 4 17 5 17 7 17 8 17 8 18 0 18 0 18 2 18 4 18 5 18 6 ... pump 76 76 77 77 78 80 81 82 85 85 92 92 92 96 96 97 11 0 11 0 11 3 11 3 11 6 11 6 11 7 12 0 12 2 12 3 12 4 12 5 12 8 12 8 13 3 13 6 1...

Ngày tải lên: 13/08/2014, 09:21

... 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 9 10 11 12 13 14 15 IMPELLER ... (REP). On the pump curve, it is seen as in Figure 74. Know and Understand Centrifugal Pumps i 1 - .~ - ~- ~~ ~ ~~ Figure 6 -14 ~ ~- discharge head. It mak...

Ngày tải lên: 13/08/2014, 09:21

... shut - on head 1 0 01 0 50 10 0 15 0 Yo Design capacity DUAL VOLUTE PUMP DESIGN Figure 9 -1 5 F- 14 1 Shaft Deflection n LJ LJ Fiqure 9 -11 Fiqure 9 -12 tolerances leaves ... its BEP on the curve without damaging the mechanical seal and bearings. 1 __ 13 5 Know and Understand Centrifugal Pumps 18 0" 270" 240" ~~ Figure 9...

Ngày tải lên: 13/08/2014, 09:21

... pressurized 7 Figure 13 - 21 19 7 Know and Understand Centrifugal Pumps 50% 50% of face contact 50% force. area sees closing Figure 13 -14 The illustration above (Figure 13 -14 ) shows a perfect ... Setscren. 10 . Gland. 11 . Nuts. 12 . Spacer for spring tension. 13 . Flush line. 14 . Cooling and draining. 15 . Pump body. Figure 13 -18 Double seals D...

Ngày tải lên: 13/08/2014, 09:21

... SYMPTOMS AND CAUSES OF FAILURE FOR POSITIVE DISPLACEMENT PUMPS Symptom Possible Cause Pump fails to discharge liquid. Noisy pump. 6 ,10 ,11 ,I 6 ,17 ,18 ,19 Pump wears rapidly. 11 ,12 ,13 ,16 ,20,23 ... 17 -1) . INCORRECT CORRECT Figure 17 -1 PUMP FMp PUMP E PUMP 238 Common Sense Failure Analysis Source of Problem Suggested CauselRemedy 8. 9. IO. 11 . 12 . 1...

Ngày tải lên: 13/08/2014, 09:21

... 48.9 54.4 60.0 65.6 71. 1 76.7 82.2 87.8 93.3 10 0.0 10 4.4 11 5.6 12 6.7 13 7.8 14 8.9 16 0.0 17 1 .1 18 2.2 19 3.3 1. 002 1. 0 01 1. 0 01 1. 0 01 1 .ooo 1 .ooo 0.999 0.999 0.998 ... 1. 275 1. 692 2.223 2.889 3. 71 8 4.7 41 5.992 7. 510 9.339 11 .526 14 .696 17 .18 6 24.97 35.43 49.20 67. 01 89.66 11 8. 01 15 3.04 19 5.77 0.204...

Ngày tải lên: 13/08/2014, 09:21

... recommendations for surviving cavitation shock waves and vibrations in Chapters 13 and 14 on Mechanical Seals. n 38 Know and Understand Centrifugal Pumps w An increase of the temperature of ... demonstrates the need to seal and artificially pressurize d-a tanks to get the NPSHa above the NPSHr of the pump. 31 Know and Understand Centrifugal Pumps T...

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 ... temperature and pressure. It incorporates closed impellers with balance holes (Figure 6-9). Complies with API Standard 610 . Know and Understand Centrifugal...

Ngày tải lên: 13/08/2014, 09:21

... the TDH of the system. Know and Understand Centrifugal Pumps - - - - - - i c -200 -19 0 -18 0 -17 0 -16 0 -15 0 -14 0 -13 0 IC1 a -12 0 2 c -11 0 a -10 0 Q a Q -90 = - ... 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, c...

Ngày tải lên: 13/08/2014, 09:21

... system's demands according to the two tank levels, is seen this way (Figure 8 -13 ). H BEP 1 lH I I I I VI 0 Q BEP Q t 10 GPM Figure 8 -13 Know and Understand Centrifugal Pumps ... 8-9). END BEGINNING Figure 8-9 11 0 Know and Understand Centrifugal Pumps Consider all the mathematical gyrations required just to determine the Hv a...

Ngày tải lên: 13/08/2014, 09:21