QW/WQ Submersible Sewage Pump Application: Municipal works, Industrial buildings Hotels, Hospitals, Civil air defence Drain off the sewage, waste water, rainwater and living water containing solid grains and various long fabrics QW/WQ Submersible Sewage Pump Feather: 1. ) Impeller: With single-channel or double-channel impeller, which is similar to an elbow of the same section, the pump is particularly suitable for the medium containing solid particles( particle size: 50% pump flange size). 2. ) Mechanical seal: Double-channel mechanical seal in series(doule seal type), with durable wear and corrosion resisting seal material. Motor side: Ceramic/Ceramic Pump side: Silicon carbide/Hard Alloy 3. ) Bearing. Three sets. One at the motor side and two at the pump side. SKF and NTN type bearing available if request. 4. ) Oil and water probe: Once the mechanical seal damages and water comes insides, the probe will send out signal to make the protection action. 5. ) Float switch: If request, with pump control cabinet, the float switch can automatically control the pump stop/start according to the water level 6). Movable and fixed installation optional, and double guide automatic rail available. 7. ) Motor: Insulation class: Class F, and protection class 58 Capacity range(m3/h) 5---3000 Head range(m3/h) 7---60 Outlet size(mm) 25---500 Power(kw) 0.75---250 Material: Cast iron, SS302,SS304,SS316 Shaft seal(mechanicalseal) SIC,TC, ceramic,graphite... Temp up to 120 degree PH 3-11 Installation Movalbe or auto coupling type Water leakage probe float switch.