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1.QI End Suction Water introduction
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.
QI(R) pump is designed as back pull out construction, which can help the end user maintenance much easier.QIR types are mainly used in the hot water circulation, which allowed the medium to 150 oC
It also have many different materials design for meeting different working conditions.
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. |
| Utilities : Water / Wastewater | Power Generation stations , dewatering , desalination , energy recovery turbines |
| Chemical / Mining | Chemical plants , refineries , petroleum distribution , coal sites , ethylene glycol pumping . |
More:
1.Water supply system; Heat, air condition system
2.Clean,thin,non-corrosive,non-flammable or non-explosive liquid without grain or fiber
3.Booster, constant pressure water supply
4.Firefighting, splitting system, farming irrigation/drainage
5.Industry cooling, heater circulation system; Industry transferring, drain system
4.QI End Suction Water pump Materials
The QI End Suction Water pump is widely used for clean water, sea water and chemical processing. There are different material for the pump parts for different liquid pumped:
| 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 |
We could also do all kinds of special materials like bronze (brass), duplex stainless steel pump and parts for special application.
5. QI End Suction Water Pump Structure
6. QI End Suction Water Pump Atlas Curve
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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