Company Logo

AHLSTAR A pumps are now available with a closed impeller

20th June 2023

Sulzer introduces a closed impeller to the AHLSTAR A single-stage pump range. The novelty offers enhanced performance and improved efficiency.
AHLSTAR is a comprehensive series of end-suction single-stage centrifugal pumps designed to work with all types of liquids in demanding industrial applications. The versatile A range builds on the well-established AHLSTAR’s legacy and is now completed with yet another impeller option.
AHLSTAR A process pumps are available with six different impellers, each designed for specific industrial applications. Closed impellers are commonly used in water processes due to their high efficiency and good runnability. Also, a closed impeller offers a reliable option when processing flammable or toxic liquids, for instance in the chemical process industry. 
The closed impeller is an addition to AHLSTAR A end-suction single-stage pumps and can use the same mechanical seals and bearing units as other pumps in the series. Due to the modular construction, the need for spare parts is minimized. The pumps are available in various sizes and materials, the most common ones being ductile iron, duplex stainless steel, and super duplex.
More information about the AHLSTAR A pump series can be found here: [AHLSTAR A process pump range | Sulzer]

Image 1: Sulzer introduces a closed impeller to the AHLSTAR A single-stage pump range.

About Sulzer

Sulzer is a global leader in fluid engineering and chemical processing applications. We specialize in energy-efficient pumping, agitation, mixing, separation, purification, crystallization and polymerization technologies for fluids of all types. Our solutions enable carbon emission reductions, development of polymers from biological sources, recycling of plastic waste and textiles, and efficient power storage. Our customers benefit from our commitment to innovation, performance and quality through our responsive network of 180 world-class manufacturing facilities and service centers across the globe.

Sulzer has been headquartered in Winterthur, Switzerland, since 1834. In 2022, our 12’900 employees delivered revenues of CHF 3.2 billion. Our shares are traded on the SIX Swiss Exchange (SIX: SUN).

Editorial Contact: Brittany Kennan

Tel: +44 (0)1905 917477



Address: Progress House, Midland Road, Worcester, Worcestershire, WR5 1AQ, United Kingdom

Reader Contact:

Sulzer: Saku Vanhala, Head Product Manager

Tel: +358 50 555 0296



Address: Sulzer Pumps Finland Oy P.O.Box 66 FI-48601, Kotka, Finland