ALLFUEL® Series | CIRCOR Pumps Skip to main content Pumps & Systems Pumps menu Allweiler IMO Zenith Utility Contact Careers English English English Deutsch 简体中文 English English Deutsch 简体中文 Pumps & Systems Main navigation Products Centrifugal Pumps Crescent Internal Gear Herringbone Gear Pump Three-Screw Pumps Twin-Screw Pump Precision Gear Pump Progressing Cavity Pumps Product Search Applications Case Studies Parts & Services Service Parts & Replacement Emergency Pumps Commercial Marine Industrial Company About Us Brands Allweiler IMO Zenith Locations Pump Showroom Newsroom Blog Events News & Press Close search Search Search Main navigation Products Centrifugal Pumps Crescent Internal Gear Herringbone Gear Pump Three-Screw Pumps Twin-Screw Pump Precision Gear Pump Progressing Cavity Pumps Product Search Applications Case Studies Parts & Services Service Parts & Replacement Emergency Pumps Commercial Marine Industrial Company About Us Brands Allweiler IMO Zenith Locations Pump Showroom Newsroom Blog Events News & Press Pumps menu Allweiler IMO Zenith Utility Contact Careers English English English Deutsch 简体中文 English English Deutsch 简体中文 Breadcrumb Home prev image next image Image 1 Image 2 Image 3 Three-Screw Pumps ALLFUEL® Series Unleash Efficiency with the 2nd Gen Oil Transfer Pumps  The 2nd generation of the Allweiler ALLFUEL ® series was designed specifically for the efficient transfer of fuel oil, lubricating oil, and hydraulic oil. The ALLFUEL ® three-screw pumps are recognized worldwide for their reliability as transfer, booster, and burner pumps in oil firing technology, fuel systems for marine vessels, as well as transfer and filling pumps in tank farms and lube oil pumps throughout all industrial sectors, operating at pressures up to 40 bar. Their versatility and performance make three-screw pumps the optimal choice for demanding applications, such as pumping low-sulfur marine fuels or marine diesel (MGO). The ALLFUEL ®   series offers various designs, including models with either mechanical seal or magnetic drive for maximum safety. Regardless of the version you select, you can count on constant and secure pumping of your media. Key Advantages Fast Maintenance Only one third of the time thanks to easy (dis)assembly of the pump insert Long Service Life External bearing, wear-protected SiC/SiC mechanical seal or magnetic coupling, patented new hydraulic system with inverted comb bearing and integrated thrust compensation   High Efficiency Even with demanding, low-viscosity fuels such as low-sulfur MGO Continuity Fits into most housings of the old SPF or ALLFUEL series ALLFUEL ®   Three-Screw Pumps Next-Gen Innovation for Maximum Uptime The 2nd generation ALLFUEL ®  three-screw pumps boasts an innovative, user-friendly design that minimizes downtime. Our one-piece insert unit simplifies maintenance and cuts down repair time by one-third. Besides being easy to install, the insert unit is incredibly durable due to its external bearing, which never touches the pumped medium. Our wear-protected SiC/SiC mechanical seal or magnetic coupling ensures a longest-lasting sealing. The new patented hydraulic system with an inverted comb bearing and integrated thrust compensation is highly durable. Effortless Switching and Easy Cleaning The Ultimate Filter Innovation A central ball valve with a straightforward direction setting makes switching easy. Our innovative design ensures efficient flow through the filter from the inside out, keeping dirt and metal chips securely inside and preventing them from entering the pump housing. A notable feature of our filter is its easy cleaning. It can be easily extracted without requiring the medium to be drained. This pragmatic approach saves time and ensures seamless operations for your processes. ALLFUEL® Series Technical Details Series Specifications Max. Capacity [l/min] Max. Inlet Pressure [bar] Max. Outlet Pressure [bar] Max. Fluid Temperature [°C] Viscosity Range [mm²/s] AFI SiC/SiC mechanical seal 112 6 40 150 1 - 3,000 AFI-F SiC/SiC mechanical seal and filter 112 6 40 150 1 - 3,000 AFI-T Twin unit with SiC/SiC mechanical seal and filter 112 6 40 150 1 - 3,000 AFM Magnetic coupling 112 25 40 150 1 - 750 AFM-F Magnetic coupling & filter 112 25 40 150 1 - 750 AFM-T Twin unit with magnetic coupling and filter 112 25 40 150 1 - 750   application/pdf , 3.19 MB Download application/pdf , 5.35 MB Download Let’s talk Application Consulting For Your Needs Finding the right pump takes expertise and careful consideration. Our team of experts is here to help you find and implement a customised solution for your application. Get In Contact Now Our Service won’t stop after purchase At CIRCOR we are committed to providing our customers with an excellent service experience based on safety, reliability and quality without compromise. Our team supports you with comprehensive advice, 24/7 support through our worldwide service network, on-board and factory maintenance and genuine spare parts on request. Our factory acceptance testing ensures the high quality of our products. Worldwide Support Legal Privacy Feedback Terms & Conditions Accessibility Statement Cookie Preferences LinkedIn YouTube Twitter © CIRCOR International, Inc. All Rights Reserved, 2026 LinkedIn YouTube Twitter