centrifugal purifier

Question 1

300gpm purifier basics

Answer 1

• 15-25psifeed inlet pressure
• back pressure of discharge 15-25psi
• bowl speed 4100 rpm

Question 2

what allows the cover to be opened without disconnecting the pipe?

Answer 2

the cover hinge, inlet, and outlet assembly

Question 3

what is on the stationary part of the bowl to lock the cover in the open position?

Answer 3

the ratchet hook

Question 4

what is unique about the feed tube that makes it connect to the paring disc

Answer 4

it has left handed threads.

Question 5

what is between the pipping and the tube that prevents leakage?

Answer 5

a chevron-shaped, oil resistant rubber seal

Question 6

what is connected to the bowl by a 3/4in plug valve and steel-braided jacketed flexible hose in the pump room?

Answer 6

a seal-water inlet that directs fresh water into the bowl.

Question 7

what is the purpose of the spring loaded handle?

Answer 7

screws the feed tube assembly into the paring disk.

Question 8

what is a sufficient means for properly locking down the bowl cover to the closed position?

Answer 8

hand tight

Question 9

what does the drive housing contain?

Answer 9

the spindle assembly, direct drive assembly, speed counter, brake, and lube system.

Question 10

how many sets of ball bearing are there to support the spindle assembly?

Answer 10

3:

• upper upper
• upper lower
• lower

Question 11

what is between the upper lower and lower sets of ball bearings?

Answer 11

a large verticle spring to reduce vibration.

Question 12

how many springs are surrounding the upper upper ball bearings?

Answer 12

6 horizontal springs.

Question 13

what is the horizontal drive shaft supported by?

Answer 13

2 sets of ball bearings, outer and inner.

Question 14

what is the purpose of the speed counter?

Answer 14

determine the RPM’s of the bowl shell assembly.

Question 15

At full bowl RPM’s, what should the speed count be at?

Answer 15

between 146-152 per minute.

Question 16

what is the ration for the bowl speed?

Answer 16

• drive motor: 1770-1775 RPM
• bowl speed: 4100 RPM
• speed counter:146-152 per minute

Question 17

the driving house is divided by metal partitions into how many compartments?

Answer 17

2:

• direct drive
• gears and bearings

Question 18

what aid lubrication in the driving house?

Answer 18

the worm wheel is partially submerged in oil to lubricate the gears and bearings.

Question 19

how much oil can the driving house hold and what type?

Answer 19

8-8 1/2 quarts of grade 90 oil.

Question 20

what do the two lines represent on the oil sight glass?

Answer 20

top-white(full)

bottom-red(low)

Question 21

what does the bowl shell assembly consist of?

Answer 21

strainers, disk stack, paring disk, and discharge ring

Question 22

how many equally spaced drain holes are located at the bottom of the purifier that drains while stopping?

Answer 22

8

Question 23

how many pins are located in the base of the tubular shaft?

Answer 23

3 unevenly spaced pins that fit into 3 unevely spaces slots at the bottom the bowl assembly.

Question 24

what provides the liquid passage and gives circular motion to the feed inlet liquid?

Answer 24

12 inner spacers

Question 25

how many disks are there in the 300GPM purifier

Answer 25

there are 186 numbered with 1 being on the bottom.

Question 26

after 186 disk’s are added to the purifier, what can you do if it is not tight enough to seal shut?

Answer 26

add more disks on top

Question 27

how do the disk’s connect to the tubular shaft?

Answer 27

the top part of the inner lip is notched

Question 28

what disk is larger than all the rest and has no holes on the base?

Answer 28

the top disk

Question 29

True or False:

the paring disk does not rotate

Answer 29

true

Question 30

the coupling ring alignment mark cannot pass what point?

Answer 30

20-25 degrees (4 1/2in)

Question 31

what sizes does the discharge ring range from?

Answer 31

200mm-250mm

Question 32

the bowl must be cleaned before the wet cake exceeds by how thick?

Answer 32

30 pounds or 1 1/2 in

Question 33

how often must the bowl be disassembled and cleaned?

Answer 33

every 300 hours of operation

Question 34

if pitting passes ______ you must replace the bowl.

Answer 34

1/4 in