- info@hjwaterpump.com
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The HZX is Hongjiu’s self priming sewage pump for municipal wastewater, agricultural drainage, and industrial effluent. Integrated air-water separation chamber primes automatically in 60–180 seconds — no foot valve, no external vacuum pump, no confined-space maintenance. Semi-open or vortex impeller handles solids up to 2% by volume.
| Parameter | Value |
|---|---|
| Pump Type | Single-stage centrifugal, self-priming |
| Self-Priming Height | Up to 5 m (model-dependent) |
| Medium Temperature | +4°C to +60°C |
| Max Solid Content | < 2% by volume |
| pH Range | 6.5 – 8.5 |
| Motor Winding | 100% copper |
| Motor Protection | IPX4 (splash-proof, above-ground) |
| Pump Casing | Cast Iron HT200 |
| Shaft | Stainless Steel 420 |
| Mechanical Seal | Silicon carbide / carbon |
| Feature | HZX | Conventional Pump + Foot Valve |
|---|---|---|
| Foot valve required | No | Yes — clogs and fails |
| Priming system | Integrated, automatic | Separate vacuum pump / ejector |
| Maintenance access | Above ground, immediate | Wet-pit entry required |
| Solid handling | Semi-open / vortex impeller | Standard closed impeller clogs |
| Motor | 100% copper winding | Often aluminum substitute |
Municipal sewage lift stations · Agricultural field drainage and aquaculture · Construction and mining dewatering · Industrial wastewater (paper, textile, food processing) · Storm water management
Suitable: raw municipal sewage · storm water with debris · agricultural runoff · aquaculture pond water · non-corrosive industrial wastewater · fibrous materials (paper, textile)
Not suitable: corrosive or acidic media (outside pH 6.5–8.5) · explosive or flammable liquids · high-abrasive slurry exceeding 2% solid content
Does it really eliminate the foot valve? Yes. The built-in priming chamber performs automatic re-priming on every start — no foot valve at all.
How long does priming take? 60–180 seconds depending on suction lift and pipe volume. Fully automatic, no operator input required.
Is 24/7 continuous operation supported? Yes. 100% copper windings and quality radial ball bearings support continuous duty within rated temperature parameters.
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