CZW diesel engine driving self-priming sewage pump

A diesel-driven, self-priming, non-clogging sewage pump unit designed for heavy-duty dewatering and wastewater transfer where grid-clogging solids and long fibres are present. The unit combines a centrifugal pump with an axial backflow outward-mixing impeller and a diesel prime mover to provide reliable, mobile pumping for municipal, construction and industrial applications.

Key features

Integrated self-priming and non-clogging impeller design — no bottom valve or manual priming required during startup.
Capable of handling liquids containing large solid particles and long fibers.
Diesel engine drive for off-grid operation and high reliability in flood control and remote sites.
Robust skid-mounted package with coupling, cooling fan and tank, exhaust muffler and control panel for ready deployment.
Compact, service-friendly layout for easy maintenance and field servicing.

Standard components

Diesel engine and mounting
Centrifugal self-priming sewage pump with impeller
Flexible coupling and drive assembly
Cooling fan and cooling-water tank
Steel base frame with integral bottom fuel tank (80–120 L)
Battery, wiring and connection parts
Exhaust muffler and control panel

Optional configurations

Trailer-mounted (two- or four-wheel) mobile versions
Pump set grouped for multiple units or higher capacity installations
Outdoor rainproof control enclosure, movable wheels and other site-specific options
Cast iron or stainless-steel wet-end materials (selected by application)

Typical applications

Flood control, stormwater drainage and emergency dewatering
Municipal sewage and residential wastewater discharge
Construction site dewatering and civil air defense drainage
Industrial effluent handling: paper, textile, food, chemical, electric, mining
High-solids waste streams: tanneries, slaughterhouses, breweries, sugar works, aquaculture

Operating limits and materials

Ambient temperature: ≤ 50 °C
Liquid temperature: ≤ 80 °C (special designs available up to 200 °C)
Recommended pH range: cast iron wet-end 6–9; stainless-steel wet-end 2–13
Maximum liquid density: 1240 kg/m3
Maximum self-suction height: 4.5–5.5 m
Recommended maximum suction pipe length: 10 m

Why specify this unit

This diesel-driven self-priming sewage pump is engineered for reliability in demanding, off-grid or emergency conditions. It provides strong solids-handling capability with low installation requirements and flexible configuration options (trailer, grouped units, stainless steel wet-ends) to match site needs. Ideal for contractors, municipalities and industrial operators who require a mobile, easy-to-maintain pumping solution for heavily polluted or solid-laden wastewater.

Model references