I’ve walked enough well fields—from loess plateaus to brackish coastal bores—to know what works under pressure. The 175QJR Deep Well Submersible Pump keeps showing up in places where downtime is not an option. Built in Hebei (No. 6 Xingyuan Road, West District, Lincheng Economic Development Zone), it’s a workhorse, and, to be honest, a bit of a chameleon thanks to the OEM options.
The market keeps sliding toward higher efficiency hydraulics, stainless wetted parts (316 in mildly corrosive water), and smarter controls. Actually, more utilities are pairing submersibles with VFDs to stabilize head across seasonal drawdown. And yes, digital monitoring is creeping in—simple current/insulation telemetry saves headaches.
| Series | 175QJR Deep Well Submersible Pump (Ø ≈175 mm bowl/motor envelope) |
| Flow range | ≈ 20–150 m³/h (real‑world use may vary with stages/impeller trim) |
| Head range | ≈ 60–420 m total dynamic head |
| Power | ≈ 7.5–110 kW, 380/660V, 50Hz (60Hz on request) |
| Materials | 304/316 SS bowls & shaft, cast iron options, copper rotor, mechanical seal SiC/SiC |
| Limits | Sand ≤ 0.01% (100 g/m³), water 5–30°C, pH 6.5–8.5; IP68 motor |
| Standards | GB/T 2816-2014, GB/T 2818-2014; performance tests per ISO 9906 |
Materials receipt → spectral verification → CNC machining of bowls/impellers → dynamic balancing (G2.5) → shaft straightness check → mechanical seal lapping → motor winding & VPI impregnation → stator insulation test (IEC 60034) → assembly in clean bay → hydrostatic test (1.5× rated pressure) → performance test (ISO 9906 Grade 2B or better) → final QA & packing.
Expected service life: around 20,000–30,000 running hours with compliant water quality and correct start/stop regime.
Municipal wells, pivot irrigation, mine dewatering, geothermal wells (moderate), industrial process water, and emergency raw-water backup. Many customers say it handles drawdown swings gracefully—credit the stage design.
| Vendor | Standards & Testing | Customization | Lead Time | Warranty |
|---|---|---|---|---|
| Wellpump ACT (Hebei) | GB/T + ISO 9906 bench; IEC 60034 motor tests | High (OEM bowls, materials, voltages) | ≈ 2–5 weeks | 18–24 months typical |
| Generic Importer | Mixed; limited test data | Low–Medium | 4–10 weeks | 12 months |
| Local Assembler | Depends on sourced parts | Medium | 1–3 weeks | 12–18 months |
OEM processing is the point: impeller trims for BEP at your drawdown, 316 SS for chloride >300 ppm, special voltages, and cable lengths. One Inner Mongolia pivot farm reported ≈15% energy savings after matching stages to duty point; a coastal project swapped to 316 to stop pitting—issue solved. Feedback? “Starts clean, holds head, no drama.” I guess that’s what you want.
At 80 m³/h, total head 180 m, measured efficiency ≈72% (ISO 9906 Grade 2B), vibration within 2.8 mm/s RMS, insulation resistance >200 MΩ at 500V after heat run. Results vary by build.
Compliance: GB/T 2816-2014 (pump), GB/T 2818-2014 (asynchronous motor). Performance verification per ISO 9906; motor safety per IEC 60034. For potable applications, specify materials and seals accordingly.
Need a quote or a non-standard variant? WhatsApp: 17855846335. Quick drawings help: desired flow/head, bore size, water chemistry, and cable route.