Fish and seafood plants pump salty, chilled effluent full of scales, guts and shell. A stainless ZWL self-priming pump handles it — here’s why.
| Flow Rate | 8–800m³/h |
|---|---|
| Head | 10–80m |
| Power | 1.5–75kW |
| Inlet / Outlet Diameter | DN25–DN300 |
| Material | Cast Iron,SS304，SS316L |
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A seafood processing plant is a corrosive place for a pump. The effluent is salty (brine, sea water, ice melt), often chilled, and full of scales, guts, shell fragments, skin and fat. Salt eats cast iron, and the solids clog anything with tight passages. The right tool is a stainless steel ZWL direct-coupled self-priming sewage pump.
Sea water and brine make seafood effluent aggressively corrosive — this is textbook stainless steel territory. The stainless ZWL resists the salt where cast iron would rust out fast, and stainless is the hygienic, cleanable material a food plant wants anyway. Cast iron simply isn’t the right body for a salty, chilled seafood stream.
Fish waste is chunky and stringy at once — offal, scales, skin, shell and stringy tissue. The ZWL’s non-clog passage clears solids up to about 60% of the port diameter and fibre up to five times it, so the processing waste flows through instead of clogging. Being self-priming, it sits above the drain or pit, primes itself after the first fill (no foot valve), and stays easy to strip down and clean — important for a plant washing down constantly for hygiene.
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.
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