QI(R) Centrifugal end suction pump is a single stage, single suction pump for pumping clean water and the other liquids physically and chemically similar to the clean water. This pump is suitable for public water supply and drainage duties in industries and land irrigation also in agriculture and fire fighting equipment.
2.QI End Suction Water pump Feature
(1) The temperature of liquid shall not be over 80 oC for type QI. And QIR can be to 150 oC.
(2) The major components are casing, casing cover, impeller, shaft, wear ring, shaft sleeve, bearing bracket etc.
(3) QI pump is divided into the casing and the casing cover from the back face of the impeller i.e. back pull-out design. QI pump has the advantages for ease of inspection and maintenance. When inspection, only dismantle the intermediate connector between pump coupling and motor coupling. The rotating element can be completely removed without disturbing the casing, suction and discharge pipeline and motor.
| Industry | Plumbing Applications |
| General water supply | Circulation of HVAC building systems , water booster service , boiler feed , general circulation service and more . |
| Agriculture / Food / Beverage | Irrigation , water supply , food processing , beverage processing , fertilizers . |
| Manufacturing | Pulp and paper fans , plastic & rubber , metal & steel , pharmaceutical , paper mills , air wash , marine ballast service . |
| Fire / Disaster Relief | Fire pumps , fire protection , flood control , disaster relief , federal / military . |
| Utilities : Water / Wastewater | Power Generation stations , dewatering , desalination , energy recovery turbines |
| Chemical / Mining | Chemical plants , refineries , petroleum distribution , coal sites , ethylene glycol pumping . |
1.Water supply system; Heat, air condition system
| No. | Country | Cast iron | Ductile Iron | Stainless Steel 304 | Stainless Steel 316 |
| 1 | China | HT250 | QT500-7 | 0Cr18Ni9 | 0Cr17Ni12Mo2 |
| 2 | US | NO.35 | 70-50-05 | SS304 | SS316 |
| 3 | Japan | FC250 | FCD500 | SUS304 | SUS316 |
| 4 | Germany | GG25 | GGG50 | X5CrNi18.9 | X5CrNiMo18.10 |
| 5 | Italy | G25 | GS500-7 | ||
| 6 | France | FGL250 | FGS500-7 | Z6CN18.09 | Z6CND17.12 |
| 7 | ISO | 250 | 500-7 | 11 | 20,20a |
5. QI End Suction Water Pump Structure
7.QI End Suction Water Pump Performance Data Sheet
| Pump Type | Capacity (m3/h) | Head (m) | Motor Power(kw) |
| QI 50 | 3.1 - 14 | 3.7-82 | 0.55-11 |
| QI 65 | 6.1 - 30 | 3.8-115.4 | 0.55-30 |
| QI 80 | 12 - 60 | 3.6-128 | 0.55-37 |
| QI 100 | 24.3 - 120 | 3.7-133 | 1.1-75 |
| QI 125 | 51.4 - 240 | 8.4-133 | 4-110 |
| QI 150 | 104 - 240 | 13-53 | 11-45 |
| QI 200 | 194-460 | 13.1-55 | 22-90 |
| QI 250 | 320-760 | 22.6-52 | 75-132 |
| QI 300 | 530-1200 | 21.9-38 | 90-132 |
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