Large capacity drainage flood pump

Pump overview

1. Model HW pump mainly consists of pump cover, impeller,pump casing, shaft, muff and bearing body (aperture

≤350mm) or bearing stand (aperture ≥ 400mm) etc.

2. The pump cover is connected to the pump casing and the water-in pipe separately.There should a proper

interval between the planes of both pump cover and impeller, too small interval will produce friction; while too

big will cause the pressured water inside of the pump to flow back greatly to have the pump efficiency lowered.

The practically used proper interval is 0.3~0.7mm (push the pump shaft to the pump inlet) and the interval can

be adjusted through increasing or decreasing the paper pad thickness.

3. The shaft seal is formed with packing, packing gland, packing ring and the packing box on the pump casing (no

packing ring with 150HW and 200HW pumps) and functions to prevent air from being sucked into the pump

and too much water from flowing out axially.

4. The muff is used to protect the the pump shaft and can be replaced after getting worn out.

Pump features

1. The screw hole on the top of the pump casing is used to prime leading water or link a vacuum pump for exhaust

leading water.

2. To widen the pump's range of use and meet with the users' different requirements, cut the outer diameter of the

impeller or use an impeller of different performance .

3. The accessories of 150~350HW pump include inlet and outlet dead and flexible elbows, foot valve, belt pulley

or clutch; and of 400~650HW pump include inlet and outlet dead and flexible elbows, check valve, belt pulley

or clutch. Selectable by users.

Pump application

Apply to irrigation and industrial and urban drainage and dock, wharf water diversion, etc.