1、Please carefully read the operation instructions before use of the product.Operation installation ZW Series Self-suction Type Non-clogging Sewage PumpCONTENTSGeneral, Range of applicationModel meaning, About the structureBrief diagram of structureModel spectrumTable of performance parametersDiagram
2、and table of out-formand installation dimensionsDiagram and table of flange dimensionPump installationUse of the pumpMaintenance, disassembly and assembly of the pumpFailures causes and troubleshooting010203040506070809-101112 GENERALA new style product successfully developed on the basis of the rep
3、eated research on the same know-how of both at home and abroad.This pump integrates self-suction and non-clogging and uses axial-back flow outside-mixing type and, through the unique design of both pump casing and impeller geat, needs not to mount a foot valve and prime the leading water just like t
4、he common self-suction pure water pump and also can pump the liquid containing the solid of big grains and long fiber impurities. Compared with the same domestic products, this pump features a simple structure, good self-suction performance, strong sewage draining capacity, high efficiency, energy s
5、aving and easy use and repair, with every technical performance index of it ranking first nationally among the sewage pump series products and up to the world advanced level, and holds a wide applicable market and progressive future.ZW ZW 50 80200 PH 6-9 2-1331240kg/m4.5-5.5 1060% 5 RANGE OF APPLICA
6、TIONSuitable for the sewage project in the municipal works, river aquaculture, light industry, paper-making, textile, food, chemical industry, power industry etc. and as the most ideal impurity pump to pump fiber, pulpy, mixed and suspended chemical media.For this pump, the ambient temperature 50 ,
7、the me-dium temperature 80 , which can be up to 200 in case of a special requirement; as of the PH value of the media, cast iron 6.9, stainless steel 2.13; the medium gravity is not 3over 1240kg/m ; the self-suction height is not over the set value 4.5-5.5m, the length of suck-in pipe 10m; as of the
8、 passing capacity, the suspended grains diameter is 60% of the pump aperture and the long fiber is 5 times that of the pump aperture.01ZW SERIES SELF-SUCTION TYPE NON-CLOGGING SEWAGE PUMP02 ABOUT THE STRUCTUREThis pump consists of pump casing, impeller, rear cover, mechanical seal, shaft, bearing se
9、at, inlet valve, air-liquid se-parating pipe, water filling valve, inlet and drain-out nipples etc.A liquid storing cavity is set inside of the pump casing and connected to the working cavity through the back-flow hole on the upper and the cycling hole on the lower to form the axial-back flow outsid
10、e mixing type system of the pump. Liquid of a certain volume has been stored in the storing ca-vity after the pump stops working and, under the action of the impeller when the pump starts, is thrown out upwards with air and then flows back to the working cavity through the grids of the air-liquid se
11、parating pipe, the air is exhausted out of the pump to have a certain vacuum formed inside of the pump so as to get the self-suction action.ZW () () (m)3(m /h)(mm)Explosion-proof motor (common one if without) Stainless steel material (cast iron if without)Rated headRated flowDiameter of the inletSel
12、f-suction non-clogging sewage pump MODEL MEANINGZW 50 - 15 - 30 P BZW SERIES SELF-SUCTION TYPE NON-CLOGGING SEWAGE PUMP1314151691011125678 BRIEF DIAGRAM OF STRUCTUREInlet nipple Inlet flangeInlet valve seatWater filling boltImpeller Mechanical seal Water baffleBearing seatOutlet nipple Pump casing A
13、ir-liquid separating pipeRear cover Pump shaft Bearing cover Bottom cover-plate Oral ring12340304 MODEL SPECTRUMZW SERIES SELF-SUCTION TYPE NON-CLOGGING SEWAGE PUMP TABLE OF PERFORMANCE PARAMETERSModel851091020151020152030252540654040256580805010080100100120180180180180280280420800ZW25-8-1532-5-2032
14、-10-2032-9-3040-10-2040-20-1540-15-3050-10-2050-20-1250-15-3050-20-3565-30-1865-25-3065-25-4065-40-2565-65-2580-40-1680-40-2580-25-4080-65-2580-80-3580-80-3580-50-60100-100-15100-80-20100-100-20100-100-30125-120-20150-180-14150-180-20150-180-30150-180-38200-280-14200-280-28250-420-20300-800-14ZWZWZW
15、ZWZWZWZWZWZWZWZWZWZWZWZWZWZWZWZWZWZWZWZWZWZWZWZWZWZWZWZWZWZWZWZW1520203020153020123035183040252516254025353560152020302014203038142820142900290029002900290029002900290029002900290014502900290029002900145029002900290029001450290014501450145029001450145014501450145014501450145014501.52.22.232.22.232.2
16、2.235.545.57.57.57.547.57.57.51515227.57.511221515223755225555554545454845454845454848455050505250505052455055505353535560606545655561655.55.55.55.55.55.55.55.55.55.55.55.55.55.55.55.55.05.55.55.55.55.55.05.55.55.55.55.55.55.05.05.05.05.24.54.533333333333332223222323333223.5333.5332.52.5100100100120
17、100100120100100120150200200200200240240200200240285450340300300340510500500570680800700940115014002.02.52.52.52.52.52.52.52.52.52.52.53.03.03.03.03.03.03.03.03.03.03.04.04.04.04.04.55.05.05.05.05.04.86.06.0Flow3(m /h)Speed(r/min)Head(m)Power(kW)Eff.(%)NPSHr(m)Self-suction height (m)Self-suction time
18、 (min/5m)Weight(kg)0506Model L L1 L2 L3 L4 a f B1 B2 H h1 h2 h3 ndZW25-8-1532-5-2032-10-2032-9-3040-10-2040-20-1540-15-3050-10-2050-20-1250-15-3050-20-3565-30-1865-25-3065-25-4065-40-2565-65-2580-40-1680-40-2580-25-4080-65-2580-80-3580-80-3580-50-60100-100-15100-80-20100-100-20100-100-30125-120-2015
19、0-180-14150-180-20150-180-30150-180-38200-280-14200-280-28250-420-20300-800-14ZWZWZWZWZWZWZWZWZWZWZWZWZWZWZWZWZWZWZWZWZWZWZWZWZWZWZWZWZWZWZWZWZWZWZW85085085089085085089085085089098010401230123011651300104011651230130013001365136012301230132016501600160015801690192019202020218025806806806807106806807
20、106806807107507608508508509407608508509401020118010209209201020130011701170130013701570147015701600188011511511513011511513011511513012513513513513515013513513515019019019014014020032017517520023524527024532530045045045045045045045045045045045050058058058064050058058064064064064063063062573082082073
21、080010809701080950128024024024024024024024024024024024034034034034035034034034035036033040037537542048045045050050040052050072080025525525526025525526025525526025035035035035035035035035035035037035040040040046051051049049049065065080010305105105105105105105105105105104806507007006507006506507007007
22、007606507307307309008808808708708701090109013301500310310310310310310310310310310380380370370370430380370370430450480450450450450480480480480520580520580610610370370370370370370370370370370450450520520430485450430520485520540590510510510550540540550600660565660670655228228228238228228238228228238238
23、265270270265270265265270270270350280330330330330330330350350350350350430530414141414141000410004100410410410485480480485480485485480480480600495630630630570665650700700700700700800900625625625630625625630625625630630760720720760720760760720720720890770920920920870990990103010301020109010901200135024
24、2424242424242424242425252525252525252525252528282830303030303030303030418418418418418418418418418418418418418418418418418418418418423423423423423423423423423423423423423423423423 DIAGRAM AND TABLE OF OUT-FORM AND INSTALLATION DIMENSIONSZW SERIES SELF-SUCTION TYPE NON-CLOGGING SEWAGE PUMP DIAGRAM AND
25、 TABLE OF FLANGE DIMENSIONZW25-8-15ZW32-5-20ZW32-10-20ZW32-9-30ZW40-10-20ZW40-20-15ZW40-15-30ZW50-10-20ZW50-20-12ZW50-15-30ZW50-20-35ZW65-30-18ZW65-25-30ZW65-25-40ZW65-40-25ZW65-65-25ZW80-40-16ZW80-40-25ZW80-25-40ZW80-65-25ZW80-80-35ZW80-80-35ZW80-50-60ZW100-100-15ZW100-80-20ZW100-100-20ZW100-100-30
26、ZW125-120-20ZW150-180-14ZW150-180-20ZW150-180-30ZW150-180-38ZW200-280-14ZW200-280-28ZW250-420-20ZW300-800-14253232324040405050505065656565658080808080808010010010010012515015015015020020025030010012012012013013013014014014014016016016016016019019019019019019019021021021021024026526526526532032037543
27、575909090100100100110110110110130130130130130150150150150150150150170170170170200225225225225280280335395607070708080809090909011011011011011012512512512512512512514514514514517520020020020025525531036214141414141414141414141414141414151515151515151515151520202020202222242422222222222222222222222333
28、333333333441441441441441441441441441441441441441441441441441841841841841841841841841841841881881881881881881881812 1812 232532323232323240404040656565656565656565656565808080801251251251251251501502002501001201201201201201201301301301301601601601601601601601601601601601601901901901902402402402402402
29、652653203756070707070707080808080110110110110110110110110110110110110125125125125175175175175175200200255310141414141414141414141414141414141414141414141415151515202020202020202224222222222222222222222222222333333333414414414414414414414414414414414414414414414414414414414414414414414418418418418818
30、81881881881881881881812 18Dimension of the flange at suck-in port Dimension of the flange at drain-out portDN1 D1 D11 d1 b1 f1 n1-d01 DN2 D2 d12 d2 b2 f2 n2-d0275909090909090100100100100130130130130130130130130130130130130150150150150200200200200200225225280335Model07the flange at suck-in port The f
31、lange at drain-out port08 PUMP INSTALLATION1. With the shafts of both pump and motor linked in actuation, pay attention to the concentricity between the pump shaft and the motors output; and carefully mount and calibrate the pump as which will leave a bigger affection to the running stability and du
32、ration of it.2. Fasten the nut on the pumps clutch, or the impeller may be made easily movable to cause a mechanical failure.123. 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
33、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 higher than the self-suction height and shall be lower than the lowest stored water level in the water pool as can as possible, th
34、e suck-in pipe shall be as short as possible and mount less elbows so as to shorten the self-suction time and raise 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. G
35、et 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 gro-unding resistance of it and the pipeline up to the set require-ment.6. Calibrate the installation space and the concentricity between the c
36、lutches of both pump and motor, with the all-owed deviation of the concentricity at 0.1mm, and put a copper or iron sheet under the foot to adjust the height difference between the shafts of both pump and motor.7. Take a final check after the unit actually runs for 3-4h and it is deemed for the inst
37、allation to have been well done if non-bad condition. Check the bearing temperature during trial, which shall not be over 70 C.8. If the pump can not be made to successfully exhaus tduring the self-suction process with a single-way valve mo-unted on the pumps outlet pipeline, connect a small exhaust
38、ing pipe and valve at the pump outlet.34ABC560.17 3-4708ZW SERIES SELF-SUCTION TYPE NON-CLOGGING SEWAGE PUMP093. 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 s
39、hafts of both pump and motor; 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 operation1. Pay attention to the pump shaft to see if it moves in the correct direction wh
40、en 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 pr
41、imed 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 a
42、nd 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 pip eline or supplementing liquid directly from the filling port
43、 on the pump casing, then start the pump again.3()123 USE OF THE PUMPPreparations and checks prior to starting1. 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 grea
44、se into the bearing box in a periodic time 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 and, if not, prime liquid directly from the filling port on the casing. Do not s
45、tart the pump in case of an insufficient stored liquid, or the pump would not work normally and the mechanical seal would be easily damaged.1102104. 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 occur
46、s with two causes: one is too quick flow rate in the inlet pipe and the other 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 pumps install
47、ation height.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 exhausted on-time from the vomiting port during the self-suction process and also ensures the pump is started with a ligh
48、ter load. Meanwhile, pay attention to checking if there is a leak from the pipeline system.Stop1. 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 bearings cooling cha
49、mber completely to prevent any parts from being frozen to crack.45()123ZW SERIES SELF-SUCTION TYPE NON-CLOGGING SEWAGE PUMP11This pump features a simple and reliable structure, dur-ability and is generally unnecessary to be disassembled often for maintenance if working normally. Troubleshoot it in case of a failure.Cautions at maintenanceWhen the rolling bearing and both front and rear seal rings are worn out to a certain degree after a long time runn-ing of the pump, r
