Tongyi Machinery
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Multistage Water Pump Hot Water Boiler Feeding Pump
| D280-43X7 Specifications | |
|---|---|
| Flow: | 280m3/h |
| Head: | 301 m |
| Inlet/Outlet: | 200/200 mm |
| Speed: | 1450rpm |
| NPSHr: | 4m |
| Eff.: | 77% |
| Pump casing: | Cast iron |
| Impeller: | Cast iron |
| Shaft: | 2Cr13 |
| Shaft seal: | Gland packing |
| Shaft sleeve: | Carbon steel |
| Balance disc: | Ductile iron |
| Balance ring: | Cast iron |
| Weight: | 1280kg/set |
| Size: | 1900x700x860(mm) |
The D series multistage water pump is a widely used system of high-pressure pump, suitable for hot and cold water as booster pumps in parallel water supply for high-rise buildings, fire protection, boiler feed water, cooling systems, and various irrigation fluid conveying.
Inlet pressure of pumps is less than 0.6Mpa.
| No. | Part Name | No. | Part Name |
|---|---|---|---|
| 1 | Suction Casing | 12 | Packing Gland |
| 2 | Diffuser | 13 | O-ring |
| 3 | Stage Casing | 14 | Bearing |
| 4 | Delivery Casing | 15 | Wearing Ring (1st Stage) |
| 5 | Impeller (1st Stage) | 16 | Wearing Ring |
| 6 | Impeller | 17 | Diffuser Bush |
| 7 | Balance Disc | 18 | Shaft |
| 8 | Balance Ring | 19 | Shaft Sleeve |
| 9 | Stuffing Box Housing | 20 | Balance Water Piping |
| 10 | Packing | 21 | Water Seal Piping |
| 11 | Balance Sleeve | - | - |
| Model | Capacity (m3/h) | Head (m) | Speed (rpm) | Power (kw) |
|---|---|---|---|---|
| D/DG6-25*3 | 6.3 | 75 | 2950 | 5.5 |
| D/DG12-50*6 | 12.5 | 300 | 2950 | 30 |
| D/DG46-50-7 | 46 | 350 | 2950 | 90 |
| D/DG150-100*6 | 150 | 600 | 2950 | 400 |
| D/DG280-65*6 | 280 | 390 | 1480 | 500 |
| D/DG740-80*6 | 740 | 480 | 1480 | 1600 |
| Pump Part | D Series | DM Series | DG/DY Series | DF Series |
|---|---|---|---|---|
| Suction Casing | HT250 | ZGCr17Mo2-CuR | HT250 | Stainless Steel |
| Impeller | HT250 | KmTbCr15Mo3 | HT250 | Stainless Steel |
| Shaft | C45 | C45 | C45 | Stainless Steel |
| Diffuser | HT250 | KmTbCr15Mo3 | HT250 | Cr Steel |
