QW Series Submersible Sewage Pump HYDDBY08

Product overview

The submersible sewage pump is manufactured as per CJ/T 472-2015 Submersible sewage pump. It is of a lower pump structure, with two sets of independent bulk mechanical seals, a wear-resistant silicon carbide grinding block, a stainless steel rotating shaft, standard stainless steel exposed parts and 10 m long cables. It is mainly used on the operation surface and can ensure complete drainage. The outlet is provided with the flange for the purpose of automatic butt joint of the automatic coupling device in the sewage treatment environment usually in the fixed installation condition; for the pump with a power less than 22 kW, the outlet is also configured with the standard pipe connector for the purpose of flexible pipe connection mainly in the mobile installation condition. The double-channel unblocked impeller with good sewage pumping and discharge capacities is installed. For the pump with a power greater than 30 kW, built-in protection devices for water and oil leakage, overload, over temperature, etc. are provided, and automatic electric pump startup and shutdown can be achieved via the external control cabinet.

Product use

It is mainly used for round-the-clock unattended sewage stations and water supply & discharge projects requiring the automatic coupling installation. In addition, it can be applied to drainage for civil air defense projects, drainage for urban/township sewage treatment plants, pumping and discharge of sewage from industrial and mining enterprises, discharge of muddy water on the civil engineering sites, water supply, discharge and sprinkling irrigation for small farmland and gardens, discharge of wastewater in rural biogas digesters, cesspits and livestock breeding places, urban sanitation sewage treatment, pumping and discharge of slurry water, etc.;

Operating conditions:

1 The flow at the outlet of the electric pump shall not be greater than the rated value (i.e. the pump shall be used within the specified lift range);

2 The submergence depth shall not exceed 5 m, otherwise, it shall be stated when the order is placed;

3 The water temperature shall not exceed + 40 °C;

4 The pH valve shall be 5 ~ 9;

5 Rated voltage: 380 V or 660 V, with a permissible fluctuation of ± 10%; frequency: 50 Hz;

6 Volume ratio of solid-phase matters in the fluid: < 2%, kinematic viscosity: 7×10-7 ~ 23×10-6 m2/s, max. density: 1.2 × 103 kg/m3.