KQW Series Type Centrifugal IN-line Pump For Cooling Tower
● Utilizes a direct-drive structure, ensuring stable operation, reduced vibration and noise, and easy maintenance.
● The impeller and pump body are designed with an excellent hydraulic model, resulting in higher efficiency.
● Castings such as the pump body, pump cover, and impeller are manufactured using coated sand and precision casting processes, resulting in a smooth surface and excellent appearance and quality.
● Cast iron flow parts are fully covered with electrophoretic paint, significantly reducing the impact of corrosion on pump performance and lifespan.
KQW Series Type Centrifugal IN-line Pump For Cooling Tower
● Water circulation in closed-loop cooling towers and condensers
● Cooling of various equipment units
● General water supply
- Model Description
- Operating Conditions
- Materials
- Motors
- KQW Structure Diagram
● For example, KQW100/125-2.2/4
● KQW Standard Horizontal Single-Stage Pump
● 100 Inlet/Outlet Diameter
● 125 Nominal Impeller Diameter
● 2.2/4 Motor Power/Number of Motor Poles
● Medium: Clean water
● Medium temperature: -10℃~80℃
● Ambient temperature: ≤40℃ (altitude less than 1000m, relative humidity not exceeding 95%)
● Maximum working pressure: <0.6Mpa
● Pump body and cover: Cast iron
● Impeller: 2Cr13 stainless steel
● Pump shaft: 45# steel (304 for sealing)
● Mechanical seal dynamic and static rings: Antimony-impregnated graphite, silicon carbide
● Bearings: Imported brand SKF (NSK for 4kW and below)
● Surface treatment: Electrophoretic paint
● YE3 series ultra-high efficiency three-phase asynchronous motors. Power and type conform to IEC-Norm.
● Type: V1 (KQL) B35 (KQW)
● Power Supply: 380V, 50Hz
● Protection Class: IP55
● Insulation Class: F
● Motor Shaft: 45# steel (304 for sealing) or stainless steel (2Cr13)
● Temperature: Maximum operating temperature of the motor is 40℃. Reduce power when the temperature exceeds 40℃.
● Rotation: For vertical pumps, the rotation direction is clockwise when viewed from the motor fan end downwards; for horizontal pumps, the rotation direction is counterclockwise when viewed from the pump inlet.
| No. | Quanyity | Name |
| 1 | 1 | Base |
| 2 | 3 | Plug |
| 3 | 1 | Impeller |
| 4 | 1 | Stainless Steel Shaft Sleeve |
| 5 | 1 | Mechanical Seal |
| 6 | 2 | Inlet/Outlet Pressure Test Port Rp3/8 (Optional) |
| 7 | 1 | Pump Body |
| 8 | 1 | Water Baffle Ring |
| 9 | 1 | Pump Cover |
| 10 | 1 | Switch Sign |
| 11 | 1 | Motor |
| 12 | 8 | Bolts |
| Inlet/outlet flange PN10-GB/T17241.6-2008 | ||||
| DN | D | K | d | n×dL |
| mm | Quantity:xmm | |||
| 65 | 185 | 145 | 108 | 4×φ18 |
| 80 | 200 | 160 | 124 | 8×φ18 |
| 100 | 220 | 180 | 144 | 8×φ18 |
| 125 | 250 | 210 | 174 | 8×φ18 |
| 150 | 285 | 240 | 199 | 8×φ23 |
| Size chart | |||||||||||||||
| TYPE | Flange dimensions | Figure dimensions | Installing dimensions | DN | |||||||||||
| L | H2 | b1 | 4-do | a | b | L1 | B1 | L2 | B2 | H | H1 | A | |||
| KQW65/80-0.75/2 | PN10 | 490 | 254 | 270 | 4-Φ12 | 100 | 78 | 100 | 200 | 140 | 223 | 240 | 120 | 175 | 65 |
| KQW80/70-1.1/2 | PN10 | 460 | 290 | 314 | 4-Φ12 | 110 | 99 | 95 | 195 | 165 | 240 | 270 | 130 | 185 | 80 |
| KQW80/80-1.5/2 | PN10 | 568 | 290 | 314 | 4-Φ12 | 110 | 99 | 95 | 210 | 165 | 240 | 270 | 130 | 191 | 80 |
| KQW80/80-2.2/2(I) | PN10 | 610 | 290 | 314 | 4-Φ12 | 110 | 99 | 120 | 210 | 190 | 240 | 270 | 130 | 191 | 80 |
| KQW100/125-2.214 | PN10 | 690 | 355 | 405 | 4-Φ12 | 120 | 140 | 140 | 225 | 180 | 250 | 380 | 180 | 244 | 100 |
| KQW125/125-314(I)A | PN10 | 705 | 395 | 433 | 4-Φ15 | 135 | 146 | 172 | 250 | 222 | 290 | 417 | 197 | 211 | 125 |
| KQW125/125-4/4(I) | PN10 | 750 | 395 | 433 | 4-Φ15 | 135 | 146 | 172 | 280 | 222 | 320 | 417 | 197 | 218 | 125 |
| KQW150/160-5.5/4 | PN10 | 714 | 450 | 493 | 4-Φ15 | 150 | 162 | 110 | 317 | 240 | 365 | 462 | 232 | 265 | 150 |
| KQW150/125-5.5/4 | PN10 | 714 | 450 | 493 | 4-Φ15 | 150 | 162 | 110 | 317 | 240 | 365 | 462 | 232 | 265 | 150 |
| KQW150/125-7.5/4(I) | PN10 | 764 | 450 | 493 | 4-Φ15 | 150 | 162 | 150 | 317 | 265 | 365 | 462 | 232 | 265 | 150 |
| Inlet/outlet flange PN10-GB/T17241.6-2008 | ||||
| DN | D | K | d | n×dL |
| mm | Quantity:xmm | |||
| 200 | 340 | 295 | 254 | 8×φ23 |
| 250 | 395 | 350 | 309 | 12×Φ23 |
| TYPE | Flange dimensions | Figure dimensions | Installing dimensions | DN | |||||||||||
| L | H2 | b1 | 4-do | a | b | L1 | B1 | L2 | B2 | H | H1 | A | |||
| KQW200/160A-11/4 | PN10 | 905 | 625 | 700 | 4-920 | 170 | 220 | 450 | 560 | 667 | 620 | 640 | 360 | 0 | 200 |
| KQW200/200A-15/4 | PN10 | 935 | 625 | 700 | 4-Φ20 | 170 | 220 | 500 | 560 | 702 | 620 | 640 | 360 | 0 | 200 |
| KQW250/200A-22/4 | PN10 | 1030 | 705 | 790 | 4-Φ20 | 190 | 230 | 490 | 630 | 730 | 690 | 720 | 420 | 0 | 250 |