- info@hjwaterpump.com
- +86-553-8312888
The HPL Series is Hongjiu’s space-efficient vertical direct connect pump for commercial HVAC, building water supply, and light industrial applications. Through-shaft architecture removes the coupling entirely — 30% smaller footprint, zero alignment maintenance. Flow 4–170 m³/h, head 4–47.5 m, DN25–DN80.
| Parameter | Value |
|---|---|
| Flow Rate | 4 – 170 m³/h |
| Head | 4 – 47.5 m |
| Nominal Diameter | DN25 – DN80 |
| Working Pressure | 1.6 MPa (2.5 MPa optional) |
| Temperature Range | -25°C to +110°C (-35°C custom) |
| Pump Casing | Cast Iron HT200 |
| Bearings | NSK / SKF sealed, maintenance-free |
| Model | Motor & Drive | Enclosure | Energy Saving | Best For |
|---|---|---|---|---|
| HPL Standard | IE3 induction, DOL/Star-delta | Standard IP | Baseline | Constant-duty HVAC, simple retrofits |
| HPLE VFD | IE3 + Inovance VFD (≥3 kW) / Huizhi (❤️ kW) | Rainproof | 20–40% | Variable-flow buildings, outdoor boosting |
| HPLYE PM VFD | IE5 PMSM + dedicated PM driver | Standard IP | 30–50% | Hotels, hospitals, LEED/BREEAM, 24/7 operations |
HPLYE sub-types: -H (HVAC circulation) · -Z (pressure boosting)
HPL Standard → — Lowest upfront cost, bolt-in installation, no alignment tools required.
HPLE VFD → — Rainproof VFD integration, auto constant-pressure; suitable for outdoor and semi-outdoor sites.
HPLYE Permanent Magnet → — IE5 at 30–50% energy savings; payback typically 1–2 years for 4,000+ hour/year applications.
The HPL DN80 delivers 35 m³/h where competitors require DN100 — smaller pipe, lower fittings cost, easier installation throughout the entire system.
Commercial building HVAC · Hotel and hospital water supply · District heating secondary loops · Solar thermal and heat pump integration · Retrofit in space-constrained mechanical rooms
Can I upgrade from Standard to VFD later? Yes. All variants share the same hydraulic dimensions and pipeline footprint.
Is outdoor installation supported? The HPLE VFD variant includes a rainproof enclosure rated for outdoor or semi-outdoor use without a separate electrical cabinet.
