MDG Boiler Feed Water Pump
Size (discharge): 1 inch to 32 inch
Capacity: 3.4~ 15000 m3/hr
Head: 8.6~140m
Efficiency:Up to 92%
Materials:Cast iron,SS 304,SS 316,Bronze etc.
MDG Boiler Feed Water Pump Introduction:
MDG Boiler Feed Water 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 ¡ãC to -150 ¡ãC and the inlet pressure of pump is less than 0.6 Mpa.
MDG Boiler Feed Water Pump Features:
1) Stator parts of the MDG boiler feed water 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.
2) Rotor parts of the MDG boiler feed water 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 MDG boiler feed water 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 MDG boiler feed water 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 MDG boiler feed water pump is directly driven by motor through flexible coupling. View from motor end, the rotating direction of pump is clockwise.
MDG Boiler Feed Water Pump Parameter Selection Table:
Model Speed(r/min) Flow Head(m) Power(KW) NPSH (m)
m3/h L/S Shaftpower Motorpower
MDG6-25×3 2950 3.75 1.04 76.5 2.37 5.5 2.0
6.3 1.75 75 2.86 2.0
7.5 2.08 73.5 3.19 2.5
MDG6-25×4 2950 3.75 1.04 102 3.16 7.5 2.0
6.3 1.75 100 3.81 2.0
7.5 2.08 98 4.26 2.5
MDG6-25×5 2950 3.75 1.04 127.5 3.95 7.5 2.0
6.3 1.75 125 4.77 2.0
7.5 2.08 122.5 5.32 2.5
MDG6-25×6 2950 3.75 1.04 153 4.73 11 2.0
6.3 1.75 150 5.72 2.0
7.5 2.08 147 6.39 2.5
MDG6-25×7 2950 3.75 1.04 178.5 5.52 11 2.0
6.3 1.75 175 6.67 2.0
7.5 2.08 171.5 7.45 2.5
MDG6-25×8 2950 3.75 1.04 204 6.31 15 2.0
6.3 1.75 200 7.63 2.0
7.5 2.08 196 8.58 2.5
MDG6-25×9 2950 3.75 1.04 229.5 7.10 15 2.0
6.3 1.75 225 8.52 2.0
7.5 2.08 220.5 9058 2.5
MDG6-25×10 2950 3.75 1.04 255 7.89 18.5 2.0
6.3 1.75 250 9.53 2.0
7.5 2.08 245 10.63 2.5
MDG6-25×11 2950 3.75 1.04 280.5 8.68 18.5 2.0
6.3 1.75 275 10.5 2.0
7.5 2.08 269.5 11.71 2.5
MDG6-25×12 2950 3.75 1.04 306 9.47 18.5 2.0
6.3 1.75 300 11.44 2.0
7.5 2.08 294 12.78 2.5
MDG Boiler Feed Water Pump Application:
This series boiler feed water pump is used for transport no solid particles contained water or Chemical and Physics water
Boiler feed water and boiler circulation water
High-rise building booster
Urban Fire booster
Long distance water transportation
Boiler heating and cooling water circulation booster
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