QJD Stainless steel multistage deep well submersible pump

Compact, corrosion-resistant multistage submersible pump engineered for deep-well and high-head water extraction. The motor is directly coupled to a stack of multistage centrifugal impellers to deliver high head at controlled flow rates while operating fully submerged.

Key features

• Robust construction: pump shell made from seamless 201 stainless-steel tube; shaft, impellers and major wet parts designed for wear resistance and long service life.
• Motor: oil-filled submersible motor with Class F insulation (temperature rating up to 155°C). Windings use copper conductors for reliable electrical performance.
• Sealing: double end-face mechanical seal with O‑ring static sealing for improved leak protection in submerged service.
• Hydraulic components: high-polymer plastic impellers and matched guide/ diffuser assemblies provide efficient multi-stage performance and low noise operation.
• Serviceability: straightforward assembly (impellers, diffuser plates, inlet/outlet joints, bearings and shaft sleeve) for easier installation and maintenance.
• Options: upper motor cover, pump head and inlet joints can be supplied in copper or nickel-plated iron where specified.

Applications

• Deep and hot well groundwater extraction (tens to hundreds of meters)
• Agricultural irrigation and livestock water supply in highland or remote areas
• Municipal and industrial water supply, drainage and booster duty
• Fountains and municipal square water features
• Water lifting from rivers, reservoirs, canals and coastal/ocean extraction
• Mining, railways, construction sites and geological/hydrological projects

Why specify this pump for projects

• Multistage centrifugal design delivers high head in a compact, lightweight package
• Durable materials and mechanical sealing reduce downtime and maintenance costs
• Suitable for a wide range of B2B water-handling tasks where reliable deep-well extraction is required

Typical identification

• Series/mpn: QJD (example model shown: 100QJD4-80/16-3)
• Package/sku: SET

Contact your procurement team for detailed hydraulic curves, motor ratings, materials variants and ordering configurations to match site head, flow and installation depth requirements.