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ZX自吸泵样本


ZX Series Self-suction Pump

Operation installation

Please carefully read the operation instructions before use of the product.

CONTENTS
01
General

01
Range of application

01
Model meaning

02
About the structure

03
Brief diagram of structure

03
Spectrum of model

04
Table of performance parameters

05
Diagram and table of out-form and installation dimensions

06
Pump installation

07
Use of the pump

08
Maintenance, disassembly and assembly of the pump

09
Failures causes and troubleshooting

ZX SERIES SELF-SUCTION PUMP

ZX

ISO

Y YB

ZX series self-suction pump is an energy saving pump designed with ISO international standard and developed through absorbing and improving the r elated t echnical d ata both at home and abroad and belongs to the self-suction centrifugal pump and uses the mechanical seal of a ceramic ring so as to resist any sandy liquid to go into the sealing face, preventing it from getting scratched. This pump holds the advantages of a compact structure, easy operation, stable movement, easy maintenance, high efficiency, long duration and strong self-suction capacity and, as no foot valve is needed to be mounted on the pipeline and only a certain amount of leading liquid is required to be filled into the pump before work, improves the work condition while simplifying the pipeline system. This pump can be equipped w ith e ither Y series common motor or YB series explosion-proof one upon the different surroundings of use.

1

2

3 ( 30% 4 ) 100

1.Suitable for city environmental protection , construction , fire fighting, chemical industry, pharmacy, dyes, dyeing, brewing, electric power, electric plating, paper-making, industrial and mineral rinse, equipment cooling and so on. 2.This pump, when mounted with a shaking arm shower, c an have the water burst into air and then scattered in a thin drop for spraying, useful to a farm, nursery, orchard and tee plantation. 3.Suitable for pure water, sea water, the chemical media of an acid and alkaline degree and the pulpy material of a general pasty state. (medium viscosity<=100cP, solid content below 30%). 4.This pump can work together with a pressure filter of any model and specification and is the most ideal matching pump to send pulpy materials to the s aid f ilter f or pressure filtering.

MODEL MEANING 50 ZX 12.5 - 50 (m) (m /h)
3

Means the head(m) Means the flow (m3/h) Means a self-suction pump

(mm)

Means the suction inlet aperture(mm) 01

This pump casing consists of a suck-in room, a liquid storing room, a scroll room, a liquid back hole, an a ir-liquid separating room etc. a nd holds a n axially-liquid-back st ructure. After the pump is normally started, the impeller sucks i n t he all liquid inside of the suck-in room and the air inside of the pipeline and gets them completely mixed inside of it, then, under the action of the centrifugal force, the liquid, carrying the air, flows towards the outer edge of the scroll room and, on the outer edge of the impeller, a white foam band of a certain thickness and a quickly rotating l iquid r ing are formed. The air-liquid mixture gets into the air-liquid separating room through the expanding pipe and, as t he f low -rate is abruptly lowered thereafter, the lighter air is separated from the mixture and rises through the vomit port of the pump casing and is exhausted therefrom. T he l iquid w ith the air off returns to the liquid storing room and gets into the impeller again through the liquid back hole, where it is mixed again with the air sucked in from the suck-in pipeline and, under the action of the quickly rotating impeller, flows towards the outer edge of the impeller again , along with the repeated process, the air in the suck-in pipeline is continually reduced till being sucked up, the self-suction

70

process ends and the pump gets into the normal work. This unique exhaust capacity makes the pump able to transport the air-contained liquid without a foot valve mounted and of a good cabin cleaning function when used on an oil ship. There is a cooling room on the bottom of the bearing body with some pumps and, when the bearing body's temperature rise is over 70oC with the bearing heated, the cooling liquid can be injected in through any one of the cooling liquid unions in the cooling room for cycled cooling. The sealing mechanism inside of the pump used to prevent the liquid from leaking from the high pressure area to the low one is the front and rear seal rings, the front ring is mounted on the pump casing a nd t he r ear one o n t he b earing b ody. When the seal ring gets worn out to a certain extent after a long time work of the pump and thus affecting both efficiency and self-suction property of it, it should be replaced.

02

ZX SERIES SELF-SUCTION PUMP

BRIEF

1 8

Clutch

2 9

Pump shaft

3 10

Bearing

4 11

Mechanical seal

5 12

Bearing body

6 13

Pump casing

7 14

Outlet seat

Inlet seat

Front seal ring

Impeller

Rear cover

Baffle ring

Liquid filling hole

Liquid back hole

03

本页已使用福昕阅读器进行编辑。 福昕软件(C)2005-2009,版权所有, 仅供试用。

No.

Type

Caliber Flow (mm) (m3/h)

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26

25ZX3.2-20 25ZX3.2-32 32ZX3.2-20 32ZX3.2-32 32ZX3.2-50 40ZX6.3-20 40ZX6.3-32 40ZX10-40 40ZX6.3-50 50ZX15-12 50ZX18-20 50ZX12.5-32 50ZX12.5-40 50ZX12.5-50 50ZX20-30 50ZX14-35 50ZX10-40 50ZX15-60 50ZX20-75 65ZX30-15 65ZX25-32 65ZX25-50 65ZX25-70 80ZX35-13 80ZX43-17 80ZX40-22

25 25 32 32 32 40 40 40 40 50 50 50 50 50 50 50 50 50 50 65 65 65 65 80 80 80

3.2 3.2 3.2 3.2 3.2 6.3 6.3 10 6.3 15 18 12.5 12.5 12.5 20 14 10 15 20 30 25 25 25 35 43 40

Head Power 5535pj (m) (kw) 6477pj 20 1.1 5731PJ

Speed Self-priming (r/min) height

No.

Type

Caliber Flow (mm) (m3/h)

Head (m)

Power Speed Self-priming (kw) (r/min) height

2900 2900 2900 2900 2900 2900 2900 2900 2900 2900 2900 2900 2900 2900 2900 2900 2900 2900 2900 2900 2900 2900 2900 2900 2900 2900

6.5 6.5 6.5 6.5 6.5 6.5 6.5 6.5 6.5 6.5 6.5 6.5 6.5 6.5 6.5 6.5 6.5 6.5 6.5 6.5 6 6 6 6 6 6

27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52

80ZX50-20 80ZX50-25 80ZX50-32 80ZX50-40 80ZX60-55 80ZX60-70 100ZX80-20 100ZX100-20 100ZX100-32 100ZX100-40 100ZX100-50 100ZX100-65 100ZX70-75 150ZX180-28 150ZX170-55 150ZX170-65 150ZX160-80 200ZX400-32 200ZX280-63 200ZX350-65 250ZX550-32 250ZX400-50 250ZX450-55 300ZX600-32 300ZX500-50 300ZX550-55

80 80 80 80 80 80 100 100 100 100 100 100 100 150 150 150 150 200 200 200 250 250 250 300 300 300

50 50 50 50 60 60 80 100 100 100 100 100 70 180 170 170 160 400 280 350 550 400 450 600 500 550

20 25 32 40 55 70 20 20 32 40 50 65 75 28 55 65 80 32 63 65 32 50 55 32 50 55

5.5 7.5 7.5 11 18.5 22 11 11 15 18.5 22 30 30 30 45 55 55 55 90 110 75 90 110 90 110 132

2900 2900 2900 2900 2900 2900 2900 2900 2900 2900 2900 2900 2900 2900 2900 2900 2900 1450 1450 1450 1450 1450 1450 1450 1450 1450

6 6 6 6 6 6 6 6 6 6 6 6 6 6 5 5 5 5 5 5 5 5 5 5 5 5

32 20 32 50 20 32 40 50 12 20 32 40 50 30 35 40 60 75 15 32 50 70 13 17 22

1.5 1.1 1.5 3 1.5 2.2 4 4 1.5 2.2 3 4 5.5 4 4 4 7.5 11 3 5.5 7.5 15 3 4 5.5

OF

04

ZX SERIES SELF-SUCTION PUMP

TABLE OF
Motor Type Type
Power (KW)

L

L1 L2 L3 L4 L5 L6 L7 L8
38 155 115 38 155 38 115 38 115 38 150 38 150 145 38 145 150 120 120 38 195 195 145 145 120 180 200 120 195 38 195 38 200 120 145 195 195 70 195 70 195 70 195 200 195 200 200 200 200 200 270 270 70 320 70 320 70 320 70 320 360 430 430 430 430 400 430 400 400 2 2 2 2 2 2 3 3 3 2 3 2 3 3 3 3 2 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 2 2 3 3 3 3 3 3 3 2 2 3 2 2 3 2 2

H H1 H2 H3 B B1 B2 B3
195 200 195 200 200 195 195 220 220 185 193 213 220 220 220 220 213 270 280 203 220 220 280 203 220 220 220 225 225 225 280 300 260 260 260 320 320 335 335 350 350 350 350 440 500 535 470 500 500 470 550 550 300 320 300 320 320 300 380 380 280 305 323 353 380 380 380 380 353 440 450 333 370 370 450 343 370 370 370 406 406 406 450 490 420 420 420 490 490 555 555 650 650 650 650 800 900 935 1110 1100 1100 1230 1210 1210 436 450 436 450 450 436 436 530 530 436 475 503 540 540 530 530 503 600 630 473 530 530 630 493 530 530 530 595 595 595 655 705 590 590 590 710 710 785 785 960 960 960 960 1170 1220 1255 1290 1300 1300 1330 1440 1440 20 15 20 15 15 20 20 30 30 20 25 25 30 30 30 30 25 25 25 25 30 30 25 25 30 30 30 30 30 30 25 30 30 30 30 25 25 30 30 30 30 30 30 30 40 40 30 40 40 30 40 40 280 300 280 300 300 280 280 370 370 280 320 320 360 360 370 370 320 380 415 320 360 360 415 320 370 360 360 360 360 360 415 460 415 415 415 460 460 546 546 580 580 580 580 710 760 760 760 760 900 760 900 900 320 330 320 330 330 320 320 410 410 320 360 360 404 404 410 410 360 410 445 360 404 404 445 360 410 404 404 404 404 404 445 510 445 445 445 510 510 596 596 630 630 630 630 770 840 840 840 840 980 840 980 980 225 225 225 225 225 225 225 225 225 225 225 225 240 240 225 225 225 240 240 225 240 240 240 225 225 240 240 240 240 240 240 240 240 240 240 240 240 290 290 290 290 290 290 290 330 330 330 330 400 330 400 400 4 4 4 4 4 4 4.5 7 5 5 25 25 32 32 32 40 40 40 40 50 50 50 50 50 50 50 50 50 50 65 65 65 65 80 80 80 80 80 80 80 80 80 100 100 100 100 100 100 100 150 150 150 150 200 200 200 250 250 250 300 300 300

1 2
75 75 100 100 10 100 100 100 100 110 110 110 110 110 110 110 110 125 125 130 130 145 145 150 150 150 150 160 160 160 160 160 170 170 170 170 170 180 180 240 240 240 240 280 295 295 335 350 350 395 400 400 100 100 120 120 120 130 130 130 130 140 140 140 140 140 140 140 140 160 160 160 160 145 145 185 185 185 185 195 195 195 195 195 210 210 210 210 210 215 215 285 285 285 285 315 335 335 370 390 390 435 440 440

3
25 25 32 32 32 32 32 40 40 50 50 50 50 50 50 50 50 50 50 50 50 50 50 65 65 65 65 80 80 80 80 80 100 100 100 100 100 100 100 150 150 150 150 200 150 150 250 250 250 300 300 300

4
75 75 100 100 100 100 100 110 110 110 110 110 110 110 110 110 110 125 125 110 110 125 125 130 130 130 130 160 160 160 160 160 17 170 170 170 170 180 180 240 240 240 240 280 240 240 335 350 350 395 400 400

5 n1-d1 n2-d2 n3-d3
100 100 120 120 120 120 120 130 130 140 140 140 140 140 140 140 140 160 160 140 140 165 165 160 160 160 160 195 195 195 195 195 250 250 250 210 210 215 215 285 285 285 285 315 280 280 370 390 390 435 440 440 4-12 4-12 4-12 4-12 4-12 4-14 4-14 4-14 4-14 4-14 4-14 4-14 4-14 4-14 4-14 4-14 4-14 4-18 4-18 4-14 4-18 4-18 4-18 4-18 4-18 4-18 4-18 4-18 4-18 4-18 4-18 4-18 4-18 4-18 4-18 8-18 8-18 8-18 8-18 8-22 8-22 8-22 8-22 8-18 8-23 8-23 12-18 12-23 12-23 12-23 12-23 12-23 4-12 4-12 4-12 4-12 4-12 4-14 4-14 4-14 4-14 4-14 4-14 4-14 4-14 4-14 4-14 4-14 4-14 4-18 4-18 4-14 4-14 4-18 4-18 4-14 4-14 4-14 4-14 4-18 4-18 4-18 4-18 4-18 4-18 4-18 4-18 8-18 8-18 8-18 8-18 8-22 8-22 8-22 8-22 8-18 8-23 8-23 12-18 12-23 12-23 12-23 12-23 12-23 4-14 4-12 4-12 4-12 4-12 4-14 4-14 4-14 4-14 4-14 4-14 4-14 4-14 4-18 4-14 4-14 4-14 4-18 4-18 4-14 4-18 4-18 4-18 4-14 4-14 4-14 4-14 4-18 4-18 4-18 4-18 4-18 4-18 4-18 4-18 4-18 4-18 4-19 4-19 8-22 8-22 8-22 8-22 4-25 4-25 4-25 4-25 4-25 4-25 4-25 4-25 4-25

25ZX3.2-20 25ZX3.2-32 32ZX3.2-20 32ZX3.2-32 32ZX3.2-50 40ZX6.3-20 40ZX6.3-32 40ZX10-40 40ZX6.3-50 50ZX15-12 50ZX18-20 50ZX12.5-32 50ZX12.5-40 50ZX12.5-50 50ZX20-30 50ZX14-35 50ZX10-40 50ZX15-60 50ZX20-75 65ZX30-15 65ZX25-32 65ZX25-50 65ZX25-70 80ZX35-13 80ZX43-17 80ZX40-22 80ZX50-20 80ZX50-25 80ZX50-32 80ZX50-40 80ZX60-55 80ZX60-70 100ZX80-20 100ZX100-20 100ZX100-32 100ZX100-40 100ZX100-50 100ZX100-65 100ZX70-75 150ZX180-28 150ZX170-55 150ZX170-65 150ZX160-80 200ZX400-32 200ZX280-63 200ZX350-65 250ZX550-32 250ZX400-50 250ZX450-55 300ZX600-32 300ZX500-50 300ZX550-55

Y801-2 0.75 320 615 791 75 155 450 339 Y802-2 1.1 350 580 732 45 125 391 339 Y801-2 0.75 320 615 791 75 155 450 339 Y802-2 1.1 350 580 732 45 125 391 339 Y100L-2 3 350 580 732 45 125 391 339 Y802-2 1.1 320 615 791 75 155 450 339 Y90L-2 2.2 500 795 780 33 173 515 470 Y112M-2 4 500 795 990 33 173 515 470 Y112M-2 4 385 660 770 33 173 515 470 Y90S-2 1.5 320 615 777 80 131 406 369 Y90L-2 2.2 440 680 833 25 152 436 394 Y100L-2 3 440 680 837 50 143 445 440 Y112M-2 4 480 870 900 74 142 454 520 Y132S1-2 5.5 480 870 977 74 142 454 520 Y112M-2 4 500 795 990 33 173 515 470 Y112M-2 4 500 795 990 33 173 515 470 Y112M-2 4 440 680 857 55 143 445 470 Y132S2-2 7.5 510 870 1064 60.5 230 541 520 Y160M1-2 11 600 1000 1212 87.5 230 541 668 Y100L-2 3 440 680 864 36 135 421 440 Y132S1-2 5.5 480 870 989 63 148 466 520 Y132S2-2 7.5 520 900 1020 63 148 466 520 Y160M2-2 15 600 1000 1212 90 230 54 668 Y100L-2 3 440 680 884 42 145 441 440 Y112M-2 4 500 795 949 25 152 476 470 Y132S1-2 5.5 480 870 999 61 152 476 520 Y132S1-2 5.5 480 870 999 61 152 476 520 Y132S2-2 7.5 480 870 1080 70.5 270 557 520 7.5 480 870 1080 70.5 270 557 520 Y132S2-2 Y160M1-2 11 560 950 1140 70.5 270 557 520 18.5 600 1025 1269 95 200 558 708 Y160L-2 Y180M-2 22 730 1170 1404 38 211 656 745 7.5 600 940 1140 87.5 202 575 668 Y132S2-2 Y160M1-2 11 600 1000 1246 87.5 202 575 668 Y160M2-2 15 600 1100 1350 87.5 202 575 668 22 660 1060 1392 115 215 647 743 Y180M-2 22 660 1060 1392 115 215 647 743 Y180M-2 30 780 1320 1566 116 230 743 820 Y200L1-2 30 780 1320 1566 116 230 743 820 Y200L1-2 30 780 1310 1550 130 230 950 830 Y200L1-2 45 780 1420 1650 150 250 950 830 Y225M-2 55 905 1500 1780 150 250 950 830 Y250M-2 55 905 1500 1780 150 250 950 830 Y250M-2 55 900 1620 2083 165 470 1127 953 Y250M-2 90 1000 1860 2242 210 430 1180 1060 Y280M-4 110 1000 1860 2452 230 430 1180 1270 Y315S-4 75 1000 1860 2628 195 875 1604 1031 Y280S-4 90 1000 1860 2604 240 792 1542 1060 Y280M-4 110 1200 2000 2814 210 792 1542 1270 Y315S-4 90 1000 1860 2808 195 995 1724 1081 Y280M-4 110 1200 2000 2962 170 890 1690 1270 Y315S-4 Y315M-4 132 1200 2000 3042 170 890 1690 1350

5 5 8 8 8 8 8 8 9 12 12 12

10 10

12 12 14 14 30 30 30 30 30 22 22 35 25 25 35 30 30

05

PUMP INSTALLATION 1
1. With the shafts of both pump and motor linked in actu tion, pay attention to the concentricity between the pump shaft and the motor's output; and carefully mount and calibrate the pump as which will leave a bigger affection to the running stability and duration of it. 2. Fasten the nut on the pump's clutch, or the impeller may be made easily movable to cause a mechanical failure. 3. Have the pump inlet higher than the central line of the pump shaft so as to have a certain volume of liquid kept inside of the pump to get a better self-suction capacity and prevent the mechanical seal from drying friction. 4. Cautions for the installation of the suck-in pipeline: A.The installation height of the suck-in port shall not be over 3.5m and, if the condition is allowed, lower than the lowest water storing surface as can as possible and make the length of the suck-in pipe as short as possible and the elbow less mounted so as to shorten the self-suction time and enhance the self-suction function. B. The valve, flange etc. inside of the suck-in pipeline shall be prevented from air or liquid leaking, that means no air-leaking is allowed inside of it. C. To prevent any solid etc. impurities from sucking into the pump, a filter should be set on the suck-in pipeline, with the effective filtering area 2-3 times the section of the pipeline and the filter checked in a periodic time. D. Get both suck-in and vomiting pipelines a stand of their own and do not let the pump bearing any pipeline. 5. During installation of the pump, make the static grounding resistance of it and the pipeline up to the set requirement. 6. Check if there is stones, iron sand or any other impurity inside of the pump casing and the pipeline in installation. 7. Calibrate the installation space and the concentricity between the clutches of both pump and motor, with the allowed deviation of the concentricity at 0.1mm, and put a copper or iron sheet under the foo t to adjus t th e height difference between the shafts of both pump and motor. 8. Take a final check after the unit actually runs for 3-4h and it is deemed for the installation to have been well done if non-bad condition. Check the bearing temperature during trial, which shall not be over 70 . 9. For the bearing body of t he p ump s et w ith a cooling ro om , use a rubber or plastic pipe of a 12mm diameter inner hole to fit the cooling liquid union, the thread size is M12x1.5. 10.When the pump can not successfully exhaust the air during the self-suction process due to an one-way valve which is mounted on the outlet pipeline of it, set a small exhaust pipe and valve at the outlet.

2 3

4 A 3.5

B C 2-3 D 5 6 7 0.1 8 3-4 70 9 12 10 M12 1.5

06

ZX SERIES SELF-SUCTION PUMP

USE OF THE PUMP
Preparations and checks prior to starting 1. According to the running states, this series self-suction pumps are lubricated with quality calcium-based grease and 10# engine oil separately. For those lubricated with grease, fill grease into the bearing box in a p eriodic t ime and, for those with engine oil, fill it fully when the oil level is insufficient. 2. Check if the stored liquid inside of the pump casing is above the upper edge of the impeller a nd, i f n ot, p rime li quid directly from the filling port on the casing. Do not start the pump in case of an insufficient stored liquid, or the pump would not work normally and the mechanical seal would be easily damaged. 3. Check if the moving parts of the pump are jammed or collided; if the foot on the pump bottom and the nuts on the joints are loose; check the concentricity or the parallelism between the shafts of both pump a nd m otor; check if there is air-leaking with the inlet pipeline and settle it if any; open the valve on the suck-in pipeline and slightly open (not fully) the outlet control valve. Start and operation 1. Pay attention to the pump shaft to see if it moves in the correct direction when to start the self-suction pump ; and if there is abnormal sounds and vibration when it moves. 2. Pay attention to the readings on both pressure gauge and vacuum meter, when the indications of which get stable after a periodic time fluctuation after the pump is started, that means liquid has been primed into the pump and the pump gets into the normal liquid transportation. Before the pump gets into the normal liquid transportation, e.g. During the self-suction process, pay special attention to the temperature rise of the liquid and stop the pump to check the cause if this process is too long and the temperature is so caused too high. 3. Temporarily stop the pump in case of a difficult self-suction caused due to too high liquid temperature and make it lower by means of the back flow into the pump of the liquid in the vomiting pipeline or supplementing liquid directly from the filling port on the pump casing, then start the pump again. 4. It is possible for an air erosion to occur with the pump that causes a severe vibration and noise during the work of the pump and the air erosion occurs with two causes: one is too quick flow rate in the inlet pipe and the o ther is too high suction travel. For the former, adjust the outlet control valve, raise the reading on the pressure gauge and remove it in case of block-up in the inlet pipeline; for the latter, properly lower the pump's installation height. 07

1 10

2

3

(

)

1 2

3

4

5 ( )

1 2 3

5. When the pump is stopped because of something during work and started again, slightly (not fully) open the outlet control valve. This is benefit for the air to be exhaus-ted on-time from the vomiting port during the self-suction p rocess and also ensures the pump is started with a lighter load. Meanwhile, pay attention to checking if there is a leak from the pipeline system. Stop 1. First close the valve on the vomiting pipeline. 2. Have the pump stopped running. 3. In cold seasons, drain out the liquid stored inside of the pump casing and the water inside of the bearing's cooling chamber completely to prevent any parts from being frozen to crack.

MAINTENANCE, DISASSEMBLY AND ASSEMBLY OF THE PUMP
This pump features a simple and reliable structure , durability and is generally u nnecessary t o be d isassembled often for maintenance if working normally. Troubleshoot it in c ase of a failure. Cautions at maintenance When the rolling bearing and both front and rear seal rings are worn out to a certain degree a fter a long time running of the pump, replace them; the mechanical seal does not need to be removed for a check provided that no liquid leakwith it while does when there is a serious leak from the leaking port on the lower side of the bearing. Take care of the mechanical seal during disassembly and assembly, clean the fitted face, properly keep the mirrors of both static and dynamic rings and do not knock on them and get them collided, as the cause for the leaking of it is mainly at the burrs on the frictional pair mirrors. To repair it, grind the mirrors to have it recovered. Another cause for the mechanical seal to leak is the O -type rubber seal ring (or buffering gasket) improperly mounted or deformed or aged, then adjust or replace it. Pump disassembly and assembly sequences A. Remove the motor or take out the clutch. B. Remove the bearing assembly, check the radial space between the impeller and the front oral ring and check if the impeller nut is loose. C. Screw out the impeller nut, pull out the i mpeller and c heck the radial space between the impeller and the rear seal r ing. D. Loosen the fixing screw on the mechanical seal, pull out the dynamic ring and check the fitting state bet ween the end-faces of both static and dynamic rings and the sealing state of the O -type seal ring (or the buffering gasket).

O ( ) O

A B C D O
08

(

)

ZX SERIES SELF-SUCTION PUMP
E. Screw out the fixing nut on the clutch and pull out the clutch. F. Remove the end cover on the bearing to remove both pump shaft and bearing. G. Take reversed sequences for assembly.

E F G

Failure

Causes

Troubleshooting

1. No water out of pump

a. No or insufficient liquid stored inside of pump casing b. Air leaks from suck-in pipeline c. Too slow speed d. Too high suction travel or too long suck-in pipeline e. Too severe leakage from mechanical seal f. Air inside of suck-in pipeline unable to be exhausted from the outlet

a. fill sufficient liquid b. check and settle the air leak c. adjust the speed d. lower suction travel or shorten suck-in pipeline e. repair or replace it f. open the outlet valve to let air out

2. Bigger noise and vibration

a. Foot unstable b. Pump shaft bent c. Steam erosion d. Bearing seriously worn out e. Impurities exist inside of inlet pipeline f. Shafts of both pump and motor is not concentric

a. Solidify it b. Replace or correct it c. Adjust working conditions d. Replace it e. Get rid of impurities f. Adjust them to be concentric

3. Insufficient water-out quantity

a. Impurities get into suck-in pipe or impeller geat blocked up b. Too slow speed c. Impeller or impeller seal seriously worn out

a. Get rid of impurities b. Adjust the speed to the rated one c. Replace oral ring

4. Too big consumption of shaft power

a. Too heavy flow b. Too quick speed c. Pump shaft bent or impeller jammed or collided d. The geat inside of the pump blocked-up or jammed

a. Raise the outlet pressure b. Properly lower it c. Replace or correct d. Get rid of blocking matters

09

As we are constantly endeavouring to improve the performance of our equipment. The company reserves the right to make alteration from time to time and equipment differ from that detailed in this brochure.

800

3616-3618 201812 (021)59138888 (021)59136782 800-820-5009

Address:3616-3618 Cao'an Road, Jiangqiao Shanghai P.C.: 201812 Switchboard: (021) 59138888 Fax: (021) 59136782 800 Free consultation Tel:800-820-5009 www.lcpumps.com webmaster@lcpumps.com

2010

The first printing of the 2010 edition Date of printing

10th.Apr.2010

All rights reserved.Pirate is forbidden.


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