Allweiler Series 231.50 Vertical Two-Screw Pump

The Allweiler Series 231.50 is a vertical two-screw pump designed for marine and industrial applications requiring reliable transfer of water, seawater, oils, heavy fuel oils, and light petroleum products. With a pressure rating of up to PN 16, the pump combines the advantages of two-screw technology with a vertical pedestal-mounted design, making it suitable for installations where floor space is limited.

The Series 231.50 delivers smooth, low-pulsation flow and dependable performance across a wide range of liquid handling duties, from cargo transfer and ballast operations to cooling water and fire-fighting services.

Typical Applications

The Allweiler Series 231.50 supports a broad range of marine and industrial pumping duties, providing reliable transfer of water, fuel, and oil-based liquids.

Common applications include:

• Cargo pumps
• Bilge pumps
• Ballast pumps
• Stripping pumps
• General service pumps
• Trim pumps
• Transfer pumps
• Fire-fighting pumps
• Water cooling pumps in all industrial branches

Key Features

• Two-screw positive displacement pump design
• Pressure rating up to PN 16
• Vertical installation
• Pedestal-mounted construction
• Double-entry suction arrangement
• Integrated pressure relief valve
• Interchangeable rotor housing/casing insert
• Flange connections according to DIN or ANSI standards