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Shanghai Zhongcheng Pump Manufacturing Co., Ltd
NZW type unobstructed self-priming sewage pump
NegotiableUpdate on 04/30
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Overview
NZW type unobstructed self-priming sewage pump
Product Details
Product Introduction
The NZW type non clogging self-priming sewage pump is suitable for the treatment of municipal and industrial wastewater, as well as various wastewater classification and centralized treatment systems. It is known as the "king of self-priming sewage pumps" and is an ideal new generation of sewage treatment products.
- Stable performance and reliable use;
- Fast self-priming and high inhalation rate;
- Rear pull-out structure: convenient for maintenance and troubleshooting. Only ordinary tools are needed to quickly complete daily maintenance, saving time and effort;
- Open impeller structure, non clogging design, strong passing capacity;
- Easy to use: Simply install the recorder at the edge of the sewage pit and insert the suction pipe below the liquid level to start working. The pump needs to be filled with water for the first start-up.
scope of application
- Used for handling non flammable and explosive liquids;
- Rainwater and general sewage;
- Municipal sewage engineering, construction sites, civil air defense system drainage stations;
- Industrial wastewater from light industry, papermaking, textile, food, chemical, electrical, mining and other industries;
- Sewage discharge in residential areas;
- Wastewater and sediment from water purification systems;
- Leather industry, slaughterhouse wastewater, and river pond aquaculture; Brewing and sugar industries;
- Wastewater discharge that is not highly corrosive but has been severely polluted.
Model Meaning
Selection range
Liquid temperature: 0 ° C~40 ° C, medium density ≤ 1.2X103kg/m3, pH value 5~9;
The volume ratio of solid matter in the medium is ≤ 2%;
Maximum particle diameter: SP-2 38mm; SP-3 63mm; SP-4/SP-6/SP-8/SP-10 76mm; . Environmental temperature: ≤ 40 ° C; altitude: up to 1000m;
Flow usage range: 10m3/h~750m3/h;
Head usage range: 3m~38m;
Supporting power range: 1.1kW~90kW;
Maximum working pressure: see performance curve;
Maximum suction range: see performance table.
performance parameterThis data is for reference only, please refer to the actual order!
| model | rotational speed | Traffic Q | Head H | Supporting power | Import and export diameter | By particle diameter | Maximum suction range | ||
| RPM | m3/h | 1/s | m | kW | HP | mm | mm | m | |
| NZW-2 | 1150 | 15 | 4.2 | 4.0 | 1.1 | 1.5 | 50 (2，） | 38 | 5.0 |
| 1450* | 20 | 5.6 | 6.5 | 1.5 | 2 | 6.5 | |||
| 1750 | 25 | 6.9 | 9.5 | 3 | 4 | 6.5 | |||
| 2050 | 28 | 7.8 | 13.5 | 4 | 5.5 | 6.5 | |||
| 2350 | 32 | 8.9 | 18.0 | 7.5 | 10 | 6.5 | |||
| 2650 | 35 | 9.7 | 23.0 | 7.5 | 10 | 6.5 | |||
| 2900* | 40 | 11.1 | 27.0 | 9.2 | 12.5 | 6.5 | |||
| model | rotational speed | Traffic Q | Head H | Supporting power | Import and export diameter | By particle diameter | Maximum suction range | ||
| RPM | m3/h | 1/s | m | kW | HP | mm | mm | m | |
| NZW-3 | 650 | 25 | 6.9 | 2 | 0.75 | 1 | 1.5 | ||
| 750* | 30 | 8.3 | 3 | 1.5 | 2 | 1.8 | |||
| 850 | 32.5 | 9.0 | 4 | 1.5 | 2 | 2.4 | |||
| 950* | 40 | 11.1 | 4.5 | 1.5 | 2 | 3.0 | |||
| 1050 | 42.5 | 11.8 | 5.5 | 3 | 4 | 4.0 | |||
| 1150 | 45 | 12.5 | 7 | 4 | 5.5 | 4.9 | |||
| 1250 | 50 | 13.9 | 8 | 4 | 5.5 | 5.5 | |||
| 1350 | 52.5 | 14.6 | 10 | 5.5 | 7.5 | 80 | 63 | 5.8 | |
| 1450* | 55 | 15.3 | 11.5 | 5.5 | 7.5 | (3，） | 6.4 | ||
| 1550 | 60 | 16.7 | 12.5 | 1.5 | 10 | 6.4 | |||
| 1650 | 65 | 18.1 | 14.5 | 11 | 15 | 6.7 | |||
| 1750 | 70 | 19.4 | 16 | 11 | 15 | 6.7 | |||
| 1850 | 72.5 | 20.1 | 18 | 15 | 20 | 7.6 | |||
| 1950 | 75 | 20.8 | 20 | 15 | 20 | 7.6 | |||
| 2050 | 80 | 22.2 | 22.5 | 18.5 | 25 | 7.6 | |||
| 2150 | 85 | 23.6 | 24.5 | 18.5 | 25 | 7.6 | |||
| model | rotational speed | Traffic Q | Head H | Supporting power | Import and export diameter | By particle diameter | Maximum suction range | ||
| RPM | m3/h | 1/s | m | kW | HP | mm | mm | m | |
| NZW-4 | 650 | 40 | 11.1 | 3 | 1.5 | 2 | 1.5 | ||
| 750* | 45 | 12.5 | 4 | 1.5 | 2 | 2.4 | |||
| 850 | 53 | 14.7 | 5 | 2.2 | 3 | 4.9 | |||
| 950* | 60 | 16.7 | 6 | 3 | 4 | 5.8 | |||
| 1050 | 65 | 18.1 | 7.5 | 5.5 | 7.5 | 6.7 | |||
| 1150 | 72 | 20 | 9 | 5.5 | 7.5 | 7.3 | |||
| 1250 | 80 | 22.2 | 10.5 | 7.5 | 10 | 100 | 76 | 7.6 | |
| 1350 | 85 | 23.6 | 12.5 | 11 | 15 | (4，） | 7.6 | ||
| 1450* | 100 | 27.8 | 13.5 | 11 | 15 | 7.6 | |||
| 1550 | 110 | 30.6 | 15.5 | 15 | 20 | 7.6 | |||
| 1650 | 115 | 31.9 | 18 | 18.5 | 25 | 7.6 | |||
| 1750 | 120 | 33.3 | 20 | 22 | 30 | 7.6 | |||
| 1850 | 130 | 36.1 | 22.5 | 30 | 40 | 7.6 | |||
| 1950 | 135 | 37.5 | 25 | 30 | 40 | 7.6 | |||
| model | rotational speed | Traffic Q | Head H | Supporting power | Import and export diameter | By particle diameter | Maximum suction range | ||
| RPM | m3/h | 1/s | m | kW | HP | mm | mm | m | |
| NZW-6 | 650 | 100 | 27.8 | 3.5 | 3 | 4 | 2.4 | ||
| 750* | 125 | 34.7 | 4.5 | 4 | 5.5 | 2.7 | |||
| 850 | 150 | 41.7 | 5.5 | 7.5 | 10 | 3.6 | |||
| 950* | 160 | 44.4 | 7.5 | 7.5 | 10 | 4.2 | |||
| 1050 | 180 | 50.0 | 9.0 | 11 | 15 | 150 | 76 | 5.5 | |
| 1150 | 200 | 55.6 | 10 | 15 | 20 | (6，） | 6.4 | ||
| 1250 | 220 | 61.1 | 12.5 | 22 | 30 | 6.4 | |||
| 1350 | 230 | 63.9 | 15 | 30 | 40 | 6.7 | |||
| 1450* | 250 | 69.4 | 17 | 30 | 40 | 7.0 | |||
| 1550 | 280 | 77.8 | 18 | 37 | 50 | 7.6 | |||
| model | rotational speed | Traffic Q | Head H | Supporting power | Import and export diameter | By particle diameter | Maximum suction range | ||
| RPM | m3/h | 1/s | m | kW | HP | mm | mm | m | |
| NZW-8 | 650 | 200 | 55.6 | 6 | 7.5 | 10 | 2.7 | ||
| 750* | 230 | 63.9 | 8 | 11 | 15 | 3.7 | |||
| 850 | 260 | 72.2 | 10 | 15 | 20 | 4.6 | |||
| 950* | 300 | 83.3 | 12 | 22 | 30 | 200 (8,） | 5.2 | ||
| 1050 | 320 | 88.9 | 15 | 30 | 41 | 76 | 6.1 | ||
| 1150 | 350 | 91.2 | 18 | 37 | 50 | 6.4 | |||
| 1250 | 400 | 111.1 | 20 | 55 | 75 | 6.7 | |||
| 1350 | 450 | 125.0 | 23 | 75 | 102 | 7 | |||
| 1450* | 500 | 138.9 | 26 | 75 | 102 | 7 | |||
| model | rotational speed | Traffic Q | Head H | Supporting power | Import and export diameter | By particle diameter | Maximum suction range | ||
| RPM | m3/h | 1/s | m | kW | HP | mm | mm | m | |
| NZW-10 | 650 | 250 | 69 | 6.5 | 11 | 15 | 2.1 | ||
| 750* | 300 | 83 | 8.5 | 15 | 20 | 3.4 | |||
| 850 | 350 | 97 | 11 | 22 | 30 | 4.3 | |||
| 950* | 400 | 111 | 13 | 30 | 41 | 250 (10 丨) | 5.2 | ||
| 1050 | 450 | 125 | 16 | 45 | 61 | 76 | 5.5 | ||
| 1150 | 500 | 139 | 19 | 55 | 75 | 5.5 | |||
| 1250 | 525 | 146 | 23 | 75 | 102 | 5.8 | |||
| 1350 | 550 | 153 | 27 | 90 | 122 | 6.7 | |||
| 1450* | 600 | 167 | 31 | 90 | 122 | 6.7 | |||
| Pump model | electromotor | Motor end pulley | Pump end pulley | V-belt | |||||
| Power kW | model | model | Outer diameter of pulley mm | model | Outer diameter of pulley mm | model | Reference strip length | number of roots | |
| NZW-2(1150) | 1.1 | YE2-90S-4 | VA2-85 | 90.5 | VA2-100 | 105.5 | A | 990 | 2 |
| NZW-2(1750) | 3 | YE2-100L-2 | VA3-85 | 90.5 | VA3-132 | 137.5 | A | 990 | 3 |
| NZW-2(2050) | 4 | YE2-112M-2 | VA3-100 | 105.5 | VA3-132 | 137.5 | A | 1100 | 3 |
| NZW-2(2350) | 7.5 | YE2-132S2-2 | VA4-100 | 105.5 | VA4-120 | 125.5 | A | 1250 | 4 |
| NZW-2(2650) | 7.5 | YE2-132S2-2 | VA3-118 | 123.5 | VA3-125 | 130.5 | A | 1250 | 3 |
| NZW-3(650) | 0.75 | YE2-80M2-4 | VA2-80 | 85,5 | VA2-160 | 165.5 | A | 1250 | 2 |
| NZW-3(850) | 1.5 | YE2-90L-4 | VA2-80 | 85.5 | VA2-125 | 130.5 | A | 1250 | 2 |
| NZW-3(1050) | 3 | YE2-100L-6 | VA3-90 | 95.5 | VA3-120 | 125.5 | A | 1250 | 3 |
| NZW-3(1150) | 4 | YE2-112M-4 | VA3-100 | 105.5 | VA3-120 | 125.5 | A | 1430 | 3 |
| NZW-3(1250) | 4 | YE2-112M-4 | VA3-100 | 105.5 | VA3-112 | 117.5 | A | 1430 | 3 |
| NZW-3(1350) | 5.5 | YE2-132S1-4 | VA4-125 | 130.5 | VA4-130 | 135.5 | A | 1430 | 4 |
| NZW-3(1550) | 7.5 | YE2-132S2-2 | VA3-125 | 130.5 | VA3-224 | 229.5 | A | 1430 | 3 |
| NZW-3(1650) | 11 | YE2-160M1-2 | VA4-125 | 130.5 | VA4-212 | 217.5 | A | 1560 | 4 |
| NZW-3(1750) | 11 | YE2-160M1-2 | VA4-125 | 130.5 | VA4-200 | 205,5 | A | 1560 | 4 |
| NZW-3(1850) | 15 | YE2-160M2-2 | VB4-132 | 139 | VB4-200 | 207 | B | 1560 | 4 |
| NZW-3(1950) | 15 | YE2-160M2-2 | VB4-125 | 132 | VB4-180 | 187 | B | 1560 | 4 |
| NZW-3(2050) | 18.5 | YE2-160L-2 | VB4-160 | 167 | VB4-224 | 231 | B | 1560 | 4 |
| NZW-3(2150) | 18.5 | YE2-160L-2 | VB4-160 | 167 | VB4-212 | 219 | B | 1560 | 4 |
| NZW-4(650) | 1.5 | YE2-90L-4 | VA2-85 | 90,5 | VA2-180 | 185.5 | A | 1430 | 2 |
| NZW-4(850) | 2.2 | YE2-100L1-4 | VA3-90 | 95.5 | VA2-150 | 155.5 | A | 1430 | 2 |
| NZW-4(1050) | 5.5 | YE2-132S-4 | VA3-125 | 130.5 | VA3-160 | 165.5 | A | 1550 | 3 |
| NZW-4(1150) | 5.5 | YE2-132S-4 | VA3-125 | 130.5 | VA3-150 | 155.5 | A | 1550 | 3 |
| NZW-4(1250) | 7.5 | YE2-132M-4 | VA4-125 | 130.5 | VA4-140 | 145.5 | A | 1550 | 4 |
| NZW-4(1350) | 11 | YE2-160M-4 | VB4-160 | 167 | VB4-170 | 177 | B | 1560 | 4 |
| NZW-4(1550) | 15 | YE2-160M2-2 | VB3-180 | 187 | VB3-315 | 322 | B | 1950 | 3 |
| NZW-4(1650) | 18.5 | YE2-160L-2 | VB4-150 | 157 | VB4-250 | 257 | B | 1950 | 4 |
| NZW-4(1750) | 22 | YE2-180M-2 | VB4-180 | 187 | VB4-280 | 287 | B | 1950 | 4 |
| NZW-4(1850) | 30 | YE2-200L1-2 | VC4-212 | 209.6 | VC4-315 | 324.6 | C | 1950 | 4 |
| NZW-4(1950) | 30 | YE2-200L1-2 | VC4-230 | 239.6 | VC4-355 | 364.6 | C | 1950 | 4 |
| NZW-6(650) | 3 | YE2-100L2-4 | VA2-85 | 91 | VA2-180 | 186 | A | 1550 | 2 |
| NZW-6(850) | 7.5 | YE2-132M-4 | VB4-125 | 132 | VB4-200 | 207 | B | 1760 | 4 |
| NZW-6(1050) | 11 | YE2-160M-4 | VB3-170 | 177 | VB3-224 | 231 | B | 1950 | 3 |
| NZW-6(1150) | 15 | YE2-160L-4 | VB4-170 | 177 | VB4-200 | 207 | B | 1950 | 4 |
| NZW-6(1250) | 22 | YE2-180L-4 | VC4-224 | 234 | VC4-250 | 260 | C | 1950 | 4 |
| NZW-6(1350) | 30 | YE2-200L-4 | VC4-250 | 260 | VC4-265 | 275 | C | 2195 | 4 |
| NZW-6(1550) | 37 | YE2-225S-4 | VC4-300 | 310 | VC4-280 | 290 | c | 2195 | 4 |
| NZW-8(650) | 7.5 | YE2-160M-6 | VB3-125 | 132 | VB3-180 | 187 | B | 1950 | 3 |
| NZW-8(850) | 15 | YE2-180L-6 | VB4-200 | 207 | VB4-224 | 231 | B | 1950 | 4 |
| NZW-8(1050) | 30 | YE2-200L-4 | VC4-224 | 233.6 | VC4-315 | 324.6 | C | 2420 | 4 |
| NZW-8(1150) | 37 | YE2-225S-4 | VC4-280 | 289.6 | VC4-355 | 364.6 | c | 2420 | 4 |
| NZW-8(1250) | 55 | YE2-250M-4 | VC4-280 | 289.6 | VC4-315 | 324.6 | c | 2420 | 4 |
| NZW-8(1350) | 75 | YE2-280S-4 | VD4-355 | 371.2 | VD4-375 | 391.2 | D | 2740 | 4 |
| NZW-10(650) | 11 | YE2-160L-6 | VB4-140 | 147 | VB4-200 | 207 | B | 1950 | 4 |
| NZW-10(850) | 22 | YE2-200L2-6 | VC4-224 | 233.6 | VC4-250 | 259.6 | C | 2195 | 4 |
| NZW-10(1050) | 45 | YE2-225M-4 | VC4-250 | 259.6 | VC4-355 | 364.6 | c | 2420 | 4 |
| NZW-10(1150) | 55 | YE2-250M-4 | VC4-315 | 324.6 | VC4-400 | 409.6 | c | 2715 | 4 |
| NZW-10(1250) | 75 | YE2-280S-4 | VD4-355 | 371.2 | VD4-425 | 441.2 | D | 2740 | 4 |
| NZW-10(1350) | 90 | YE2-280M-4 | VD4-355 | 371.2 | VC4-375 | 391.2 | D | 2740 | 4 |
| Annotation: Wheel symbol in the table | Compliant with GB/T10412 standard, the V-belt complies with GB/T11544 standard. | ||||||||
structural drawings
| Serial Number | Part name | material | Serial Number | Part name | material |
| GB | GB | ||||
| 1 | Inlet flange | HT200 | 8 | pump body | HT200 |
| 2 | Imported valve disc | NBR+Q235A | 9 | Upper cover of impeller | HT200 |
| 3 | Water injection cap | HT200 | 10 | mechanical seal | WC/WC |
| 4 | Export flange | HT200 | 11 | O-ring | NBR/FPM |
| 5 | end cap | HT200 | 12 | Pump shaft | 3Crl3 |
| 6 | Wear and tear disc | 45 | 13 | Bearing body | HT200 |
| QT400-18 | 14 | Bearing cap | HT200 | ||
| 7 | impeller | QT400-18 | 15 | Inlet pipe cover | HT200 |
| ZG0Crl8Ni9 | 16 | water inlet | HT200 |
Installation sizeThis data is for reference only, please refer to the actual order!
| project | NZW-2 | NZW-3 | NZW-4 | NZW-6 | NZW-8 | NZW-10 | |
| Flange connection size (mm) | PN | PN0.6MPa | PNl.0MPa | PN1.6MPa | |||
| DN | 50 | 80 | 100 | 150 | 200 | 250 | |
| D | 140 | 190 | 220 | 285 | 340 | 405 | |
| D1 | 110 | 150 | 180 | 240 | 295 | 355 | |
| D2 | 90 | 128 | 158 | 214 | 266 | 320 | |
| n-dl | 4-ф14 | 4-ф19 | 8-ф19 | 8-ф23 | 8-ф23 | 12-ф26 | |
| Pump installation size (mm) | H2 | 318 | 431.8 | 495.3 | 574.3 | 723.8 | 639.8 |
| A | 308 | 377 | 428 | 580.0 | 716.0 | 705.0 | |
| A1 | 281 | 328 | 373 | 527.0 | 635.0 | 635.0 | |
| B | 163.2 | 228.6 | 279.4 | 279.4 | 304.8 | 304.80 | |
| B1 | 54 | 76.2 | 110 | 77.8 | 101.6 | 101.6 | |
| L2 | 274.8 | 285 | 326 | 294.0 | 407.1 | 320.6 | |
| d2 | ф14 | ф18 | ф18 | ф18 | 24 | ф24 | |
| H3 | 151.5 | 190.5 | 222.2 | 257.2 | 330.2 | 355.6 | |
| L3 | 104 | 102 | 127 | 127.0 | 170.0 | 123 | |
| d | ф38 | ф38 | ф38 | ф38 | ф48 | ф48 | |
| hxbxl | 10x5x95 | 10x5x80 | 10x5x90 | 10x5x90 | 14x5.5x127 | 14x5.5x120 | |
| Dimensions (mm) | H | 552 | 697.5 | 760 | 875 | 989.0 | 1017 |
| Am | 321 | 389 | 429 | 580.0 | 716.0 | 786.0 | |
| H4 | 502 | 652 | 735 | 887.7 | 1069.3 | 1047.8 | |
| L | 615 | 712.2 | 813.5 | 906.6 | 1023.0 | 1244.7 | |
| L4 | 233 | 277 | 318 | 411 | 412.8 | 720.9 | |
| El | 27.5 | 15 | 13 | 0 | 0 | 0 | |
| E2 | 70 | 50 | 50 | 50 | 0 | 0 | |
| Weight Wt. (kg) | 99 | 190 | 275 | 438 | 655 | 705 | |
| model | rotational speed | electromotor | Installation size | Xi Bu shape size | ||||||||||||
| RPM | kW | model | Ad | Ldl | Ld2 | d | Hll | H31 | H41 | K | Am | Hm | HD | E | Ld | |
| NZW-2 | 1450 | 1.5 | YE2-90L-4 | 300 | 77.5 | 617 | 20 | 428 | 261.5 | 612 | 986 | 341 | 662 | 416.5 | 61.5 | 772 |
| 2900 | 9.2 | YE2-132S-2 | 300 | 77.5 | 695 | 20 | 428 | 261.5 | 612 | 1110 | 341 | 662 | 471.5 | 19.5 | 850 | |
| 750 | 1.5 | YE2-112M-8 | 330 | 120 | 621 | 20 | 541.8 | 300.5 | 762.2 | 1134 | 370 | 800 | 490.5 | 78.5 | 861 | |
| NZW-3 | 950 | 1.5 | YE2-100L-6 | 330 | 120 | 614 | 20 | 541.8 | 300.5 | 762.2 | 1119 | 370 | 800 | 480.5 | 90.5 | 854 |
| 1450 | 5.5 | YE2-132S1-4 | 330 | 120 | 660 | 20 | 541.8 | 300.5 | 762.2 | 1204 | 370 | 800 | 510.5 | 58.5 | 900 | |
| 750 | 1.5 | YE2-112M-8 | 370 | 150 | 663 | 20 | 605.3 | 332.2 | 843.6 | 1236 | 430 | 887.3 | 522.2 | 110.2 | 963 | |
| NZW-4 | 950 | 3 | YE2-132S-6 | 370 | 150 | 702 | 20 | 605.3 | 332.2 | 843.6 | 1306 | 430 | 887.3 | 542.2 | 90.2 | 1002 |
| 1450 | 11 | YE2-160M-4 | 370 | 150 | 821 | 20 | 605,3 | 332.2 | 843.6 | 1451 | 430 | 887.3 | 587.2 | 62.2 | 1121 | |
| 750 | 4 | YE2-160M1-8 | 510 | 150 | 784 | 20 | 710.3 | 393.2 | 1023.7 | 1544 | 590 | 1024 | 648.2 | 97.2 | 1084 | |
| NZW-6 | 950 | 7.5 | YE2-160M-6 | 510 | 150 | 784 | 20 | 710.3 | 393.2 | 1023.7 | 1544 | 590 | 1024 | 648.2 | 97.2 | 1084 |
| 1450 | 30 | YE2-200L-4 | 510 | 150 | 905 | 20 | 710.3 | 393.2 | 1023.7 | 1705 | 590 | 1024 | 698.2 | 57.2 | 1205 | |
| 750 | 11 | YE2-180L-8 | 640 | 150 | 1050 | 24 | 904 | 510.2 | 1250 | 1767 | 716 | 1250 | 790 | 150.2 | 1350 | |
| NZW-8 | 950 | 22 | YE2-200L2-6 | 640 | 150 | 1085 | 24 | 904 | 510.2 | 1250 | 1769 | 716 | 1250 | 815 | 130.2 | 1385 |
| 1450 | 75 | YE2-280S-4 | 640 | 150 | 1264 | 24 | 904 | 510.2 | 1250 | 2012 | 716 | 1250 | 1020 | 50.2 | 1564 | |
| 750 | 15 | YE2-200L-8 | 640 | 150 | 1050 | 24 | 820 | 535.6 | 1227.8 | 2020 | 786 | 1228 | 880.6 | 155.6 | 1350 | |
| NZW-10 | 950 | 30 | YE2-225M-6 | 640 | 150 | 1050 | 24 | 820 | 535.6 | 1227.8 | 2095 | 786 | 1228 | 865.6 | 130.6 | 1350 |
| 1450 | 90 | YE2-280M-4 | 640 | 150 | 1240 | 24 | 820 | 535.6 | 1227.8 | 2285 | 786 | 1228 | 935.6 | 75.6 | 1540 | |
| model | electromotor | Installation size | External dimensions | |||||||||||||
| kW | Motor model | Ad | Ldl | Ld2 | d | Hll | H31 | H41 | L | Long Ld | Width K | High Hm | Am | HD | E | |
| NZW-2(1150) | 1.1 | YE2-90S-4 | 375 | 100 | 515 | 20 | 438 | 271.5 | 622 | 350 | 715 | 655 | 672 | 423 | 375 | 72 |
| NZW-2(1750) | 3 | YE2-100L-2 | 359 | 100 | 550 | 20 | 438 | 271.5 | 622 | 375 | 750 | 655 | 672 | 407 | 410 | 62 |
| NZW-2(2050) | 4 | YE2-112M-2 | 352 | 100 | 560 | 20 | 438 | 271.5 | 622 | 363 | 760 | 655 | 672 | 400 | 432 | 50 |
| NZW-2(2350) | 7.5 | YE2-132S2-2 | 313 | 100 | 670 | 20 | 438 | 271.5 | 622 | 451 | 870 | 655 | 672 | 361 | 472 | 30 |
| NZW-2(2650) | 7.5 | YE2-132S2-2 | 313 | 100 | 650 | 20 | 438 | 271.5 | 622 | 433 | 850 | 655 | 672 | 361 | 472 | 30 |
| NZW-3(650) | 0.75 | YE2-80M2-4 | 467 | 100 | 609 | 20 | 552 | 310.5 | 772 | 428 | 808 | 752 | 818 | 514 | 355 | 121 |
| NZW-3(850) | 1.5 | YE2-90L-4 | 451 | 100 | 651 | 20 | 552 | 310.5 | 772 | 460 | 854 | 752 | 818 | 498 | 375 | 111 |
| NZW-3(1050) | 3 | YE2-100L2-4 | 435 | 100 | 662 | 20 | 552 | 310.5 | 772 | 459 | 866 | 752 | 818 | 482 | 410 | 101 |
| NZW-3(1150) | 4 | YE2-112M-4 | 428 | 100 | 767 | 20 | 552 | 310.5 | 772 | 540 | 967 | 752 | 818 | 475 | 432 | 89 |
| NZW-3(1250) | 4 | YE2-112M-4 | 428 | 100 | 774 | 20 | 552 | 310.5 | 772 | 548 | 974 | 752 | 818 | 475 | 432 | 89 |
| NZW-3(1350) | 5.5 | YE2-132S1-4 | 389 | 100 | 756 | 20 | 552 | 310.5 | 772 | 514 | 956 | 752 | 818 | 436 | 472 | 69 |
| NZW-3(1550) | 7.5 | YE2-132S2-2 | 389 | 100 | 675 | 20 | 552 | 310.5 | 772 | 434 | 875 | 752 | 818 | 436 | 472 | 69 |
| NZW-3(1650) | 11 | YE2-160M1-2 | 341 | 100 | 776 | 20 | 552 | 310.5 | 772 | 509 | 975 | 752 | 818 | 389 | 545 | 41 |
| NZW-3(1750) | 11 | YE2-160M1-2 | 341 | 100 | 786 | 20 | 552 | 310.5 | 772 | 519 | 986 | 752 | 818 | 389 | 545 | 41 |
| NZW-3(1850) | 15 | YE2-160M2-2 | 341 | 100 | 781 | 20 | 552 | 310.5 | 772 | 514 | 981 | 752 | 818 | 389 | 545 | 41 |
| NZW-3(1950) | 15 | YE2-160M2-2 | 341 | 100 | 803 | 20 | 552 | 310.5 | 772 | 536 | 1003 | 752 | 818 | 389 | 545 | 41 |
| NZW-3(2050) | 18.5 | YE2-160L-2 | 341 | 100 | 744 | 20 | 552 | 310.5 | 772 | 477 | 944 | 752 | 818 | 389 | 545 | 41 |
| NZW-3(2150) | 18.5 | YE2-160L-2 | 341 | 100 | 753 | 20 | 552 | 310.5 | 772 | 486 | 953 | 752 | 818 | 389 | 545 | 41 |
| NZW-4(650) | 1.5 | YE2-90L-4 | 545 | 100 | 722 | 20 | 635.3 | 362.2 | 875 | 499 | 922 | 855 | 900 | 600 | 395 | 142.2 |
| NZW-4(850) | 2.2 | YE2-100L1-4 | 529 | 100 | 761 | 20 | 635.3 | 362.2 | 875 | 525 | 961 | 855 | 900 | 584 | 430 | 132.2 |
| NZW-4(1050) | 5.5 | YE2-132S-4 | 483 | 100 | 818 | 20 | 635.3 | 362.2 | 875 | 543 | 1018 | 855 | 900 | 538 | 492 | 100.2 |
| NZW-4(1150) | 5.5 | YE2-132S-4 | 483 | 100 | 830 | 20 | 635.3 | 362.2 | 875 | 555 | 1030 | 855 | 900 | 538 | 492 | 100.2 |
| NZW-4(1250) | 7.5 | YE2-132M-4 | 483 | 100 | 840 | 20 | 635.3 | 362.2 | 875 | 565 | 1040 | 855 | 900 | 538 | 492 | 100.2 |
| NZW-4(1350) | 11 | YE2-160M-4 | 436 | 100 | 818 | 20 | 635.3 | 362.2 | 875 | 521 | 1018 | 855 | 900 | 491 | 565 | 72.2 |
| NZW-4(1550) | 15 | YE2-160M2-2 | 436 | 100 | 876 | 20 | 635.3 | 362.2 | 875 | 567 | 1076 | 855 | 900 | 491 | 565 | 72.2 |
| NZW-4(1650) | 18.5 | YE2-160L-2 | 436 | 100 | 959 | 20 | 635.3 | 362.2 | 875 | 649 | 1159 | 855 | 900 | 491 | 565 | 72.2 |
| NZW-4(1750) | 22 | YE2-180M-2 | 423 | 100 | 922 | 20 | 635.3 | 362.2 | 875 | 599 | 1122 | 855 | 900 | 478 | 610 | 52.2 |
| NZW-4(1850) | 30 | YE2-200L1-2 | 413 | 100 | 900 | 20 | 635.3 | 362.2 | 875 | 547 | 1100 | 855 | 900 | 468 | 655 | 32.2 |
| NZW-4(1950) | 30 | YE2-200L1-2 | 413 | 100 | 870 | 20 | 635.3 | 362.2 | 875 | 526 | 1070 | 855 | 900 | 468 | 655 | 32.2 |
| NZW-6(650) | 3 | YE2-100L2-4 | 497 | 100 | 886 | 20 | 714.3 | 397.2 | 1027.7 | 562 | 1096 | 947 | 1030 | 552 | 462 | 135.2 |
| NZW-6(850) | 7.5 | YE2-132M-4 | 451 | 100 | 970 | 20 | 714.3 | 397.2 | 1027.7 | 618 | 1180 | 947 | 1030 | 506 | 492 | 135.2 |
| NZW-6(1050) | 11 | YE2-160M-4 | 404 | 100 | 1045 | 20 | 714.3 | 397.2 | 1027.7 | 659 | 1255 | 947 | 1030 | 459 | 565 | 107.2 |
| NZW-6(1150) | 15 | YE2-160L-4 | 404 | 100 | 1061 | 20 | 714.3 | 397.2 | 1027.7 | 675 | 1271 | 947 | 1030 | 459 | 565 | 107.2 |
| NZW-6(1250) | 22 | YE2-180L-4 | 391 | 100 | 1013 | 20 | 714.3 | 397.2 | 1027.7 | 596 | 1223 | 947 | 1030 | 446 | 610 | 87.2 |
| NZW-6(1350) | 30 | YE2-200L-4 | 381 | 100 | 1130 | 20 | 714.3 | 397.2 | 1027.7 | 692 | 1340 | 947 | 1030 | 436 | 655 | 67.2 |
| NZW-6(1550) | 37 | YE2-225S-4 | 335 | 100 | 1127 | 20 | 714.3 | 397.2 | 1027.7 | 662 | 1337 | 947 | 1030 | 390 | 710 | 42.2 |
| NZW-8(650) | 7.5 | YE2-160M-6 | 614 | 150 | 1060 | 24 | 924 | 530.2 | 1269.3 | 733 | 1375 | 1043 | 1270 | 675 | 615 | 170.2 |
| NZW-8(850) | 15 | YE2-180L-6 | 599 | 150 | 1000 | 24 | 924 | 530.2 | 1269.3 | 642 | 1315 | 1043 | 1270 | 660 | 660 | 150.2 |
| NZW-8(1050) | 30 | YE2-200L-4 | 599 | 150 | 1200 | 24 | 924 | 530.2 | 1269.3 | 792 | 1515 | 1054 | 1270 | 660 | 705 | 130.2 |
| NZW-8(1150) | 37 | YE2-225S-4 | 549 | 150 | 1130 | 24 | 924 | 530.2 | 1269.3 | 712 | 1445 | 1054 | 1270 | 610 | 760 | 105.2 |
| NZW-8(1250) | 55 | YE2-250M-4 | 549 | 150 | 1150 | 24 | 924 | 530.2 | 1269.3 | 735 | 1465 | 1054 | 1270 | 610 | 820 | 80.2 |
| NZW-8(1350) | 75 | YE2-280S-4 | 514 | 150 | 1260 | 24 | 924 | 530.2 | 1269.3 | 792 | 1575 | 1095 | 1270 | 575 | 890 | 50.2 |
| NZW-10(650) | 11 | YE2-160L-6 | 529 | 150 | 1040 | 24 | 839.8 | 555.6 | 1247.8 | 704 | 1375 | 1270 | 1248 | 590 | 615 | 195.6 |
| NZW-10(850) | 22 | YE2-200L2-6 | 509 | 150 | 1100 | 24 | 839.8 | 555.6 | 1247.8 | 725 | 1435 | 1280 | 1248 | 570 | 705 | 155.6 |
| NZW-10(1050) | 45 | YE2-225M-4 | 459 | 150 | 1180 | 24 | 839.8 | 555.6 | 1247.8 | 743 | 1515 | 1280 | 1248 | 520 | 760 | 130.6 |
| NZW-10(1150) | 55 | YE2-250M-4 | 489 | 150 | 1280 | 24 | 839.8 | 555.6 | 1247.8 | 798 | 1615 | 1280 | 1248 | 550 | 820 | 105.6 |
| NZW-10(1250) | 75 | YE2-280S-4 | 539 | 150 | 1280 | 24 | 839.8 | 555.6 | 1247.8 | 738 | 1615 | 1320 | 1248 | 600 | 890 | 75.6 |
| NZW-10(1350) | 90 | YE2-280M-4 | 554 | 150 | 1280 | 24 | 839.8 | 555.6 | 1247.8 | 792 | 1615 | 1320 | 1248 | 615 | 890 | 75.6 |
precautions
- The suction pipe can be made of flexible or hard tubing, and the material of the pipeline must be suitable for transporting liquids. The wall of the flexible tubing must have sufficient rigidity to prevent the suction pipe from collapsing;
- The suction pipe should be kept as short and straight as possible, with minimal use of bends and accessories. Bends with larger radii should be used;
- The distance between the suction pipe immersed in the sump and the pit wall should be greater than 1.5 times the diameter of the pipe. The suction pipe should not be installed near the water flow (which may have vortices), otherwise a baffle should be added between the suction pipe and the water flow, with a distance of 1.5 times the diameter of the pipe;
- If there are two or more suction pipes in the same sump, the distance between pipes should be greater than three times the pipe diameter;
- Submerged depth of suction pipe: The submerged depth of the suction pipe is related to the flow velocity of the liquid inside the suction pipe, as shown in Figure 1.
- The immersion depth of the suction pipe can be reduced by increasing the diameter of the suction pipe and decreasing the inlet flow rate. Expand the suction pipe diameter by installing standard reducers. Concentric reducers are used for vertical expansion, and eccentric reducers are used for horizontal expansion. The recommended ratio for expanding the pipe diameter is 1.3? 1.5 times the diameter of the pipe.
- The backflow state refers to the pressure at the inlet of the pump, which must not exceed 50% of the maximum allowable working pressure.
- If the pump is equipped with a filter screen, the flow area of the filter screen is 4-6 times that of the suction pipe, and it ensures that the maximum particle diameter passing through the filter screen is smaller than the maximum particle diameter passing through the pump.
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