Alfa Laval DuraCirc Aseptic Pumpe für sterile Verarbeitungsanwendungen

Alfa Laval DuraCirc Hygienic Circumferential Piston Pumpsss

The Alfa Laval DuraCirc is a high-performance hygienic circumferential piston pump built entirely in 316L stainless steel, with twin-wing piston rotors in a special non-galling alloy for long-term reliability. EHEDG and 3-A certified, it combines high volumetric efficiency with verified CIP cleanability across dairy, food, beverage, and personal care processes. A front-loading single mechanical seal minimises maintenance time, while the extended 3-year warranty on non-wear parts reflects the pump's engineered durability. The Uni-Fit port option allows direct retrofit into existing process installations with no pipework changes required.

Get a quote

Why choose a circumferential piston pump for hygienic processes

The Alfa Laval DuraCirc is a circumferential piston pump purpose-built for CIP applications across the dairy, food, beverage, and home and personal care industries. Unlike conventional rotary lobe pumps, its twin-wing piston rotor design delivers high volumetric efficiency. This enables optimised pump selection that lowers capital costs while improving process yield. The result is a pump that handles low-viscosity fluids at medium to high discharge pressures with exceptional energy efficiency and consistent output.

Durable DuraCirc construction with 316L stainless steel

Every product-wetted steel component - including the rotor case, front cover, and rotor nuts - is manufactured from W. 1.4404 (316L) stainless steel. The rotors themselves are made from a special non-galling alloy that resists wear and seizure, even under demanding operating conditions. Shafts are duplex 1.4460 (329) stainless steel for superior strength and corrosion resistance, while the gearbox, base plate, and coupling guard are also stainless steel. This gives the DuraCirc an all-stainless exterior that stands up to washdown environments and aggressive cleaning chemicals.

EHEDG and 3-A certified circumferential piston pump design

The DuraCirc carries both EHEDG and 3-A certifications. These are the principal independent hygiene design standards for process equipment in European and North American food and dairy production. Profiled, defined compression elastomers and an optimised shaft seal location eliminate potential harbourage points for bacteria. This reduces cross-contamination risk and the time needed for CIP cycles, cutting cleaning costs while maintaining product integrity and process yield.

Front-loading seal for fast maintenance

Service speed directly affects uptime. The DuraCirc addresses this with a front-loading single mechanical seal that can be inspected or replaced from the front of the pump without disconnecting any pipework. Full component interchangeability, a single lubricant requirement, and a robust bearing arrangement with increased-diameter duplex shafts all contribute to faster, simpler maintenance. The heavy-duty bearing positioning minimises the risk of pump head contact, further reducing service frequency and supporting continuous process operation.

High inlet pressure ratings across the DuraCirc range

The DuraCirc range spans models from the compact DuraCirc 32 to the large-capacity DuraCirc 74, with port sizes from 25 mm to 150 mm. Maximum inlet pressures range from 13 bar on the DuraCirc 43 up to 40 bar on the DuraCirc 72, giving engineers flexibility to match the pump precisely to process requirements. The maximum process and CIP temperature across all models is 150 °C. This makes the DuraCirc suitable for high-temperature cleaning and pasteurisation circuits.

Uni-Fit retrofit port option

The DuraCirc Uni-Fit port option is designed for straightforward replacement of the Alfa Laval SCPP range and other major brands. It matches existing pipework dimensions. Engineers can upgrade to DuraCirc performance without modifying their process lines. This reduces installation time and cost while delivering immediate improvements in efficiency, hygiene, and reliability.

Extended warranty and total cost of ownership

Alfa Laval backs the DuraCirc with an extended 3-year warranty covering all non-wear parts, provided genuine Alfa Laval spare parts are used. Combined with its robust gearcase design, long-life bearings, and easy-access seal arrangement, the DuraCirc delivers a low total cost of ownership over its working life. Fewer unplanned stops, shorter maintenance windows, and reduced CIP chemical consumption all contribute to measurable savings in daily operations. As a specialist supplier of hygienic process equipment, Euroflow supports DuraCirc selection, spare parts supply, and ongoing service needs.

Technical Details

  • Product-wetted steel parts: W. 1.4404 (316L)
  • Rotor material: special non-galling alloy (twin-wing piston rotors)
  • Shaft material: duplex 1.4460 (329)
  • Gearbox, base plate, coupling guard: stainless steel
  • Inside surface finish: Ra ≤ 0.8 µm
  • Standard product-wetted elastomers: EPDM
  • Rotary seal face: Silicon Carbide
  • Stationary seal face: Carbon
  • Max process and CIP temperature: 150 °C / 302 °F
  • Max inlet pressure range: 13–40 bar (model-dependent)
  • Port sizes: 25 mm to 150 mm
  • Flushed shaft seal max flush pressure: 0.5 bar / 7.25 psi
  • Flushed shaft seal water consumption: 30 l/hr / 7 gallon/hour
  • Double mechanical shaft seal water consumption: 30 l/hr / 7 gallon/hour
  • Seal connection sizes: BSP/G 1/8" or NPT 1/8" (DuraCirc 32–43); BSP/G 1/4" or NPT 1/4" (DuraCirc 52–74)
  • Certifications: EHEDG and 3-A
  • Warranty: extended 3-year warranty on non-wear parts (with genuine Alfa Laval spare parts)
  • Models: DuraCirc 32, 33, 34, 42, 43, 52, 53, 54, 62, 63, 72, 73, 74

Options and Configurations

  • DuraCirc Uni-Fit port option for retrofit into existing hygienic positive displacement pump installations
  • Single flushed mechanical shaft seal
  • Double mechanical shaft seal
  • O-ring seals (EPDM or FPM, single and flushed)
  • Bare shaft pump configuration
  • Mounted on base plate complete with coupling, guard, gear motor, and shroud
  • Silicon Carbide / Silicon Carbide mechanical seal faces
  • Product-wetted elastomers in FPM or FFPM
  • Horizontal or vertical porting
  • Heating and cooling jacket
  • Rectangular inlet
  • Aseptic option (see separate data sheet)
  • Stainless steel shroud covering coupling and motor
  • Base plate fitted with adjustable stainless steel ball feet

Motor Details

  • Motor type: gear motor, 4 poles
  • Motor standard: IEC metric standard
  • Frequency: 50/60 Hz, suitable for frequency conversion
  • Protection rating: IP55
  • Insulation class: F
Tanks and stainless steel tubes and pumps in an industrial setting.

Industries

The Alfa Laval DuraCirc serves industries where hygiene, efficiency, and reliability are non-negotiable. It is widely deployed in dairy processing and food manufacturing for CIP-intensive transfer and circulation duties. A dairy application documented by Industrial Trading Solutions showed the DuraCirc saving 120 litres of product in a single transfer operation - a direct illustration of what high volumetric efficiency means in practice. Beverage operations, including breweries, also benefit from its certified cleanability, with an aseptic option available for validated sensitive production environments.

Alfa Laval Sensing and Control Think Top V50 and V70

Advanced Sensing and Control for Process Optimisation

Integrating Alfa Laval ThinkTop V50 and V70 units into your valve clusters delivers maximum uptime and significant resource savings. Their 360° LED status indication gives operators real-time flow path monitoring from any angle.

  • Resource savings: Pulse and Burst SeatClean reduce CIP fluid consumption by up to 95%.
  • Fast setup: Auto-Setup and Live-Setup cut commissioning time by up to 90%.
  • Durable: IP69K rated, -10°C to +60°C, Nylon PA12 and 1.4301 stainless steel.
  • Easy integration: Supports 24VDC PNP, AS-Interface, and IO-Link. MTTF of 224 years.
  • Universal fit: Directly interchangeable with ThinkTop Classic; fits all Alfa Laval hygienic actuators.

Ready to optimise your CIP return and process flows?

Our products
Marcus Schmidt, Euroflow GmbH owner

Are you interested?

As an Alfa Laval Master Distributor in Southern Germany, Euroflow GmbH delivers premium components and expert solutions for the dairy, brewing, beverage, food, cosmetics and pharmaceutical industries. Operating across postal codes 66-99 and 07-08, we serve Baden-Württemberg, Bavaria, Saarland, Rhineland-Palatinate, Hesse, Thuringia and Saxony with dedicated technical expertise.

As your competent partner for system integration, tank construction and end-user solutions, we provide comprehensive support in selecting optimal equipment for viscous product handling and cleaning processes. Our focus on pumps, valves, heat exchangers and tank equipment ensures reliable process performance.

Contact us today for a personalised quote and discover how our technical expertise can optimise your operations.

Get a quote

FAQ

Euroflow serves customers across southern and central Germany — covering postal code areas 66–99 and 07–08, spanning Baden-Württemberg, Bavaria, Saarland, Rhineland-Palatinate, Hesse, Thuringia, and Saxony. As an Alfa Laval Master Distributor for tank manufacturers, plant engineers, system suppliers, and end customers, we provide expert support in selecting and designing systems for viscous product handling and cleaning applications.

The DuraCirc range provides high volumetric efficiency for shear-sensitive fluids. Port sizes run from 25 mm up to 150 mm. It delivers steady flow rates up to 150 m3/h with operating pressures up to 40 bar. For detailed performance limits, review the Alfa Laval specifications.

The pump features a front-loading mechanical seal that you can inspect or replace without disconnecting any process pipework. This fully EHEDG and 3-A certified construction lacks crevices, reducing cross-contamination risk and simplifying CIP procedures. View the official EHEDG certificate for compliance details.

Yes, the DuraCirc Uni-Fit port option is designed to match existing pipework dimensions of older models and common alternatives. This saves installation time. The pump also comes with an extended 3-year warranty on non-wear parts when operated and maintained with genuine replacement components.

Call us

+49 721 / 470 518 – 10

Send a message

 info@euroflow.de