Know and Understand Centrifugal Pumps Episode 6 potx

... 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 ... volute. And, on all these family curves, the efficiencies are seen as concentric ellipses. There is very little variation in the presentation of the BHp and Know and...

Ngày tải lên: 13/08/2014, 09:21

... this information, 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 ... 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...

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... bands Specific speed, Ns 37 37 39 39 39 42 42 44 44 46 48 48 50 51 51 51 54 55 56 57 57 57 58 58 58 59 60 61 62 63 64 65 66 66 70 71 71 72 73 Know and ... Larry Know and understand centrifugal pumps 1 .Centrifugal pumps I.Title II.Custodio, Angel 62 1 .6 7 ISBN 18 561 74093 No responsibility is assumed by the Publisher for...

Ngày tải lên: 13/08/2014, 09:21

... 0. 964 0.959 0.9 56 0.948 0.939 0.929 0.919 0.909 0.898 0.8 86 0.874 62 .42 62 .42 62 .40 62 .38 62 . 36 62 .34 62 .31 62 .27 62 .24 62 .19 62 .1 6 62 .11 62 . 06 62 .00 61 .84 61 .73 61 .54 ... 61 .54 61 .39 61 .20 61 .01 60 .79 60 .57 60 .35 60 .13 59.81 59 .63 59.10 58.51 58.00 57.31 56. 66 55. 96 55.22 54.47 0.0885 0.1 21 7 0.1475...

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 61 0. Know and Understand Centrifugal...

Ngày tải lên: 13/08/2014, 09:21

... to perform a chopping, grinding, or macerating action ~ __ Figure 6- 16 Know and Understand Centrifugal Pumps A 0 6 10 GPM Figure 7-3 __~ ~ ~ impossible to operate between shut-off ... equation with a numerator and a denominator. The Nss value is obtained by dividing the numerator by the denominator. Know and Understand Centrifugal Pumps ._ ~ ~-...

Ngày tải lên: 13/08/2014, 09:21

... and the tank cools, the pump Know and Understand Centrifugal Pumps liquid from a common system, and discharging the liquid into the same common system. Two pumps running in parallel offer ... 8-9). END BEGINNING Figure 8-9 110 Know and Understand Centrifugal Pumps Consider all the mathematical gyrations required just to determine the Hv and Hf. This...

Ngày tải lên: 13/08/2014, 09:21

... curve without damaging the mechanical seal and bearings. 1 __ 135 Know and Understand Centrifugal Pumps 180" 270" 240" ~~ Figure 9 -6 ~. ~- ~ ~ __ Figure 9-7 The other ... 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...

Ngày tải lên: 13/08/2014, 09:21

... maintenance, alignment and proper cooling. 147 Know and Understand Centrifugal Pumps Fiaure 11-2 direct and indirect associated costs of its failure and replacement can be substantial. For example, ... material of construction is 161 n Know and Understand Centrifugal Pumps Types of misalignment ~~ There are two basic types of misalignment, angular a...

Ngày tải lên: 13/08/2014, 09:21

... box. Know and Understand Centrifugal Pumps and space of the complicated camshaft mechanisms and gears were eliminated. On land, the electric motor opened the door to the first practical centrifugal ... maker/tailor. This tailor’s job 171 Know and Understand Centrifugal Pumps LUBRICATION I FLUSH I PACKING COOLING PORT R GLAND FOLLOWER h 4 GLAND STUDS...

Ngày tải lên: 13/08/2014, 09:21