Model: ZWL
Manure slurry, bedding and wash-water clog most pumps. A ZWL self-priming pump handles livestock waste from above the pit — here’s why farms reorder it.
| Flow Rate | 8–800m³/h |
|---|---|
| Head | 10–80m |
| Power | 1.5–75kW |
| Inlet / Outlet Diameter | DN25–DN300 |
| Material | Cast Iron,SS304，SS316L |
We ship these to pig and cattle farms regularly, and the reason is simple: livestock waste is brutal on pumps, and the ZWL takes it. Manure slurry is a mix of solids, straw, hair, bedding and wash-down grit — stringy, fibrous and aggressive — and it wraps or corrodes anything that isn’t built for it.
The ZWL direct-coupled self-priming sewage pump is built for exactly this.
On a farm you rarely want to drop a pump into the manure pit. The ZWL self-primes, so it sits on dry ground beside the pit and draws the slurry up — its 4.5–5.5 m self-priming height covers most pit depths. No foot valve to foul, and after the first fill it primes itself every start. When it needs a look, you service it above ground, not down in the waste.
The non-clog passage is what keeps it running: solids up to about 60% of the port diameter and fibre (straw, bedding, hair) up to five times it pass straight through, so the pump doesn’t choke on the stringy stuff that defines livestock waste.
Manure is chemically aggressive — ammonia and organic acids. Cast iron handles general farm slurry; where the effluent is more corrosive, the stainless steel body extends tolerance to about pH 2–13 and lasts longer. Either way it’s a compact, low-maintenance unit — which is why farms come back and order the same pump again.
ZWL Direct-Coupled Self-Priming Sewage PumpGet the pipework right and a ZWL self-priming pump primes fast and moves solids cleanly. A practical guide to suction and discharge pipe sizing.
ZWL Direct-Coupled Self-Priming Sewage PumpA self-priming pump holds liquid inside — which can freeze in winter. Here’s how to protect a ZWL pump in cold weather so it primes when you need it.
ZWL Direct-Coupled Self-Priming Sewage PumpWhen one pump isn’t enough or downtime isn’t an option, ZWL pumps run in parallel or duty/standby. Here’s how to set that up sensibly.
