DuraCirc®

DuraCirc®

Product Description

The revolutionary Alfa Laval DuraCirc® is the first circumferential piston pump that delivers the perfect balance of durability, reliability, high efficiency and superior hygienic performance. Combined with a broad range of flow rates and pressures along with capabilities for simple service, DuraCirc keeps your processes up and running.

No more compromises: Best-in-class offering for supreme performance, superior hygiene and simpler service – all in the same pump

  • Optimized for high volumetric efficiency, ensuring cost-effective pump selection and high product quality
  • Hygienic design compliant with global standards, including EHEDG and 3-A
  • Reliable, long-term operation thanks to durable, robust, heavy-duty, all-stainless steel construction
  • Easy to service and maintain with fully interchangeable spare parts
  • High process flexibility and reduced capital costs due to the broad range of model sizes, flow rates and pressures

Pump performance, hygienic design and ease of service are essential to hygienic processes. Yet manufacturers in the dairy, food, beverage, confectionery, and home-personal care industries often must sacrifice one essential to achieve another. Not anymore. The Alfa Laval DuraCirc® circumferential piston pump (CPP) delivers it all – high volumetric efficiency, EHEDG and 3-A conformance, and quick and easy service.

For a cost-effective pump selection offering a broad application scope, the range consists of 13 models, capable of flow rates up to 150 m3/hr (660 gpm) and pressures of 40 bar (580 psi).

Simplify service in terms of complexity and time with user-friendly features including a truly front-loading, self-setting single mechanical seal, use of a single long-life oil lubricant, and external shimming.

Supreme Performance

Designed with close pump head clearances, the DuraCirc® circumferential piston pump(CPP) maximizes volumetric efficiency and process yield. Thirteen models offer a wide performance envelope with a flow rate capability up to 150 m3/hr (660 gpm) and operating pressures up to 40 bar (580 psi). This makes optimal pump sizing and selection easy, thereby reducing capital costs and increasing process flexibility.

Based on a robust, reliable design, DuraCirc® features include:

  • Advanced port and pump-head geometry, providing a very low NPSHr characteristic. This significantly reduces cavitation risk and maintains pump and media integrity whilst increasing process flexibility in challenging applications
  • Long-life, heavy-duty bearings, supporting rigid shafts located in a solid stainless steel gearcase, which reduce shaft movement and allow close pump-head clearances. This minimizes pump-head contact and ensures process uptime
  • A modular seal design, which makes seal conversion easy without requiring re-machining or additional flush housings, should the process application change
  • An optional retrofit port, the DuraCirc® Uni-Fit, enabling easy, direct replacement of existing circumferential piston pumps from both Alfa Laval and other brands, without requiring pipework modification in existing process systems

Superior hygiene

The all-stainless-steel DuraCirc® circumferential piston pump is certified to meet global standards for hygienic design, including EHEDG and 3-A. In contrast to many other circumferential piston pump brands, the DuraCirc® provides both excellent cleanability and high volumetric efficiency.

Features that reduce the risk of contamination include:

  • Profiled, product-wetted elastomers that are FDA-compliant and have a defined compression, thereby eliminating crevices and dead zones
  • A robust gearcase with optimally positioned heavy-duty bearings that support large diameter shafts, which minimize pump-head contact, thereby reducing the risk of media contamination
  • An all-stainless steel construction suitable for hygienic washdown, ensuring a cleaner environment
  • Long-lasting, FDA-compliant gearbox lubricant
  • Optimized seal design with faces fully immersed in the pumped media for higher cleaning efficiency

Simpler Service

Increase process uptime and make service faster and easier with innovative DuraCirc® design features. Perform standard maintenance procedures quickly and simply, without requiring gearbox disassembly, component re-work, or complex pump re-build procedures. Features include:

  • A truly front-loading, self-setting, single mechanical seal for fast, in-situ seal replacement, without having to remove the pump from the process line
  • Quick, easy replacement of rotors or rotor case in the unlikely event replacement is required
  • Easy-to-access, external shimming outside the rotorcase instead of inside the gearbox
  • Fully interchangeable spare parts
  • Long-life bearings, offering tens of thousands of hours of operation
  • A single, long-life, FDA-approved gearbox lubricant with an extended 3,000-hour change interval

 

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