ZXL horizontal self priming centrifugal pump close coupled to motor

A compact, horizontal, close‑coupled self‑priming centrifugal pump designed for direct coupling to an electric motor. The ZXL configuration places the pump and motor on a common shaft (coaxial), eliminating intermediate couplings and reducing footprint—suitable for installations where space, noise and simplicity are priorities.

Key features

• Compact, horizontal design for space‑saving installation; can be used outdoors when paired with an IP55 motor (no pump room required).
• Direct coupled to the motor for high concentricity, smooth operation and low vibration; impeller dynamically and statically balanced to extend bearing life and reduce noise.
• High‑quality mechanical shaft seals with hard‑alloy dynamic and static rings for improved wear resistance, leak control and long service life.
• Optimised hydraulic profile for high efficiency and stable performance across operating range.
• Strong self‑priming capability: only a small volume of liquid needs to remain in the pump body prior to start‑up; self‑priming height typically 5.0–6.5 m (site dependent).
• Simplified piping: design removes the need for a discharge check valve and for a suction bottom valve in many installations, reducing system complexity.

Operating limits and installation notes

• Ambient temperature: up to 40 °C; altitude up to 1,000 m; relative humidity up to 95%.
• Typical continuous media temperature: up to 80 °C (applications with different materials/seals can extend range as specified).
• Recommended maximum suction pipe length: ≤ 10 m.
• Viscosity: suitable for media ≤ 100 cP; solid content acceptable up to about 30% (application dependent).

Materials & options

• Standard construction for water and general liquids; available with bronze impellers and explosion‑proof motors for safe transfer of petroleum products (gasoline, kerosene, diesel, aviation fuels) and use in oil terminals, docks and tankers.
• Corrosion‑resistant mechanical seals and stainless steel wetted materials available for aggressive chemicals, food, pharmaceutical, electroplating, papermaking and other corrosive or sanitary services.

Typical applications

• Industrial and municipal water supply and drainage, environmental engineering, construction and fire protection
• Chemical processing, pharmaceuticals, dyeing, printing, brewing, electroplating and papermaking (with appropriate materials/seals)
• Fuel/oil transfer for tankers, docks, airports and fuel depots (with bronze impeller & explosion‑proof motor)
• Equipment cooling, industrial flushing and general process transfer duties

Service & maintenance

• Direct coupling and simplified piping lower the number of wearable parts and simplify routine maintenance.
• Mechanical seal design and balanced impeller reduce downtime and bearing wear, improving service intervals.

Typical model example

• Model: ZXL50‑20‑30 (example model in the ZXL family; consult supplier for performance curves, materials, and motor matching to specify flow, head and power requirements).