| Customization: | Available |
|---|---|
| Max.Head: | 100-600m |
| Max.Capacity: | 3.75-7.5m3/H |
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Description
This series multistage pump is a vertical suction, vertical delivery, horizontal centrifugal pump with diffuser type casing. DG type pump is applicable for delivering water without solide particle or the liquid which the chemical and physical feature is similar with water and temperature is less than 150ºC. It's suitable for hot water transferring, heating system and boiler feeding usage.
Construction
The multistage pump is consisted of stator, rotor, bearing, shaft seal.
1. Stator: consisted of suction casing, discharge casing and diffuser. The casing are held together by external tie rod.
2. Rotor: consist of shaft, impellers, balance disc and shaft sleeve etc.
3. Bearing parts: consisted of bearing housing, bearing and bearing cover. It's generally rolling bearing lubricated by grease.
4. Shaft seal: packing seal or mechanical seal.
Parameters
Flow Capacity: 7.5 - 840 m3/h
Delivery Head: 20 - 800m
Outlet Dia.: 40 - 300mm
Working Pressure: ≤ 6Mpa
Liquid Temp.: 0ºC- 150ºC
Material of flow passage components:
The DG series ring sectional multistage centrifugal pump could be customized with different material, main material configuration followed :
| Recommended Material Configuration (For reference only) | |||||
| Item | Clean water Raw Water |
Drink Water Hot Water >100 Deg.C |
Sewage water | Hot water <100 Deg.C | Sea water |
| Case | Gray iron (HT250) | S.S304 | Ductile iron (QT500) | Cast Steel | Duplex S.S 2205 |
| Impeller & Ring | Gray iron (HT250) | S.S304 | Ductile iron (QT500) | 2Cr13 | Duplex S.S 2205 |
| Diffusor | Gray iron (HT250) | S.S304 | Ductile iron (QT500) | 2Cr13 | Duplex S.S 2205 |
| Shaft | C.S 45 | S.S420 | 40Cr | 40Cr | Duplex S.S 2205 |
| Shaft sleeve | C.S 45 | S.S304 | S.S304 | S.S304 | Duplex S.S 2205 |
| Remarks: detailed material list will according to liquid and site conditions | |||||
Applications
General residential & industrial water supply & transferring;
Agricultural irrigation & drainage, Flood discharge & Emergency drainage;
Civil water treatment, Waterworks, Sea water desalination;
Air-conditioning, Fire-fighting facilities, High building water supply;
Oil & Gas & Chemical processing, Abrasive liquids transferring;
Power plant water circulation, Cooling tower & Hot water transferring
Mining, Boiler water feeding, etc.
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