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Chemical Veritical Circulation Centrifugal Pump
Chemical Veritical Circulation Centrifugal Pump
1.What is Credo DG pump ?
Type DG pump can deliver clear water without solid particles or other liquid which the physical and chemical feature is similar with clear water. The boiler hot water circulating pump is suitable for boiler feed water or feed water of high-pressure boiler. The temperature range of liquid is from -20 °C to -150 °C and the inlet pressure of pump is less than 0.6 Mpa.
2.What is the construction of Credo DG pump ?
Type DG pump is single casing segmental muti-stage centrifugal pump; the main parts of it are stator, rotor, bearing and shaft seal.
1) Stator parts of the DG pump: It mainly consists of suction stage, mid-stage, discharge stage and diffuser; they are strained through a lever and form a working chamber. the inlet and the outlet are vertival upword. The combined surface between each stage is sealed through metal surface and also with sealing o-ring as auxiliary seal.
2) Rotator parts of the DG pump: It mainly consists of shaft, impeller, balance kettle and shaft sleeve. Shaft transfers power to impeller and make the pump work. The axial force is balanced by balance disc (kettle) and there is rechargeable shaft sleeve in shaft to protect shaft.
3) Bearing parts of the DG pump: It mainly consists of bearing body, shaft cover and sliding bearing. There are two single centripetal ball bearing in bearing body to prevent balance disc (kettle) from abrasion. The sliding bearing is lubricated by dilute oil, there is cooling chamber in bearing body and the bearing can be cooled with exterior water.
4) Shaft seal parts of the DG pump: Shaft seal uses soft packing seal. It mainly consists od seal box, packing, packing ring and packing cover. The shaft is sealed, cooled and lubricated by exterior water from seal chamber. The mechanical seal can also be used as requirement and it need be cooled, lubricated and washed by exterior water.
5) Drive: Type DG pump is directely driven by motor through flexible coupling. View from motor end, the ratating direction of pump is clockwise.
3. performance range Capacity Q:3.75~288m3/h Head H:50~1540m |
| 4.Description of Credo DG pump |
DG25-80×10
DG—Multi-stage boiler feed pump
25—The capacity is 25m3/h at design point
80—The single stage head is 80m at design point
10—The stage number is 10 stage |
Polywood Case; as per customer requirement// 45-60days after payment
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