A past, present and future propelled by growth.

For nearly 160 years, the Allweiler name has been synonymous with comprehensive and unrivaled pump expertise—with an equally comprehensive product portfolio.

In 1860, Gotthard Allweiler invented the fire-fighting wing pump, filling a market gap. Nearly 160 years later, Herr Allweiler’s pioneering spirit lives on at CIRCOR. Our history is rich with technological, design and production innovations that shape modern progress and align with market needs for fluid-handling solutions around the world.

Today’s Allweiler customers benefit from the specialized pump knowledge that spans generations. Regardless of their pumped medium, they can confidently source the most suitable pump or system to handle it. That is because Allweiler pumps are precisely tailored to each industry-specific application and conform to the most stringent quality and reliability standards governing them. Unmatched reliability and efficiency of every pump is the goal of Allweiler’s accredited quality assurance system.

From establishing a company-owned foundry producing high-quality castings of materials available only through Allweiler, to achieving global leadership in both centrifugal and positive-displacement pump technology, we have delivered high technical and economic value to customers while reducing their total cost of ownership of valuable assets, decade after decade.

Now, as part of a family of time-tested CIRCOR industrial brands, Allweiler is bolstered by operating synergies and international sales structures that make the company more flexible and customer-centric than ever before. To our many customers active worldwide, we are pleased to offer all needed resources wherever their opportunities may take them. Our broad product range is augmented by personal, competent advice on-site and comprehensive service after the sale. CIRCOR speaks the languages of its customers and understands their business and regulatory requirements.

Featured Content

Case Study

Partnership Innovates New Marine Scrubber Pump Application

CIRCOR’S German entity Allweiler GmbH received big pump order to be installed in Bilfinger Engineering & Technologies' (BET) Exhaust Gas Cleaning System for Ships.

Case Study

CIRCOR Delivers Anti-Heeling System for Custom-Built Superyacht

In shipbuilding, most large vessels that are susceptible to heeling could benefit from an anti-heeling system (heeling is the term for when a ship tilts on any of its sides). The most common cause of heeling is uneven cargo loading/unloading in port, but high winds, waves, currents and turns can also cause it. Heeling can be dangerous to ships and to their passengers and cargo, so a good anti-heeling system can not only make port operations simpler, it can also make a ship safer in general.


Extreme Precision Meets Unbeatable Reliability.

EMTEC-C three-screw pumps excel at moving chips and particles away from cutting surfaces both precisely and efficiently. And with its incredibly durable construction, it's a level of performance that will stand up to even the harshest environments.

Case Study

Allweiler Pumps Help Excavate the World's Longest Tunnel

In tunnel construction, excavation occurs two ways depending on geologic conditions at the site: by conventional drill-and-blast and by precision-operated “mills in the mountain” known as tunnel boring machines, or TBMs. The Brenner Base Tunnel through the Alps, destined to become the longest underground railway connection in the world at a planned length of 64 kilometers, is being excavated using TBMs supplied by Herrenknecht of Schwanau, Germany

Photo: Copyright © BBT SE

Featured Products

Allweiler Three Screw SNA Series

CIRCOR’s Allweiler SNA series of next-generation industrial lube oil three-screw pump systems are the ideal solution when nothing less than API-level quality will do. Engineered to last, this series is

Allweiler Progressing Cavity - Optifix™

Designed for multiple pump series and featuring incredibly fast disassembly and reassembly, the OptiFix offers best-in-class mean time to repair

Alweiler Stators - ALLDUR®

A stator’s chemical formula determines how long the elastomer will last and, therefore, how much you will spend on maintenance and spare parts. This savings, or extra expense, will be

Allweiler AEB-DE dosing pump series

Four pump sizes, One Installation Footprint. The modular setup of the AEB-DE series makes it simple for skid builders to standardize their designs without regard to flow rate and

In The News

Press Releases2020.05.15

CIRCOR Completes Expansion in Weihai ETDZ

Continuing to drive its strategy of increasing local product availability and support in China and the Asia-Pacific market, CIRCOR has opened for business at its expanded 6,000 sqm plant in the city of Weihai, Shandong province. The fully integrated facility is providing end-to-end manufacturing, sales and service to commercial marine and industrial customers in the region.
Product Releases2020.02.18
The next-generation AEB-DE PC pump series of four pump sizes that share one installation footprint and are capable of bi-directional flow. Combining proven features from two dosing pump ranges with newly optimized rotor and stator geometries, Allweiler customers benefit from the utmost in accurate dosing of high viscosity and particulate-filled fluids in one compact, versatile series.
Product Releases2020.01.20

New AEB-DE dosing pump with an extremely flexible and space-saving design

Allweiler, a business unit of CIRCOR, will exhibit at the Pumps & Valves trade fair in Dortmund, Germany February 12th and 13th 2020 (Hall 6, Booth R19-6). Highlights of their exhibit will be the new AEB-DE dosing pump with an extremely flexible and space-saving design as well as OptiFix™, a next-generation progressing cavity pump, designed to reduce service costs.
Product Releases2019.08.27
CIRCOR has launched the Allweiler SNA™ series of customizable three-screw lube oil pumps for diverse API 676/682 applications. The Allweiler SNA series allows for customized setups in any of 12 ways, a choice of foot or flange mounting schemes, and the ability to adjust inlet and outlet positions at a moment's notice.
Press Releases2019.08.27

CIRCOR Signs Agreement to Expand in Weihai ETDZ

CIRCOR has signed an investment agreement to build a new facility in the Weihai Economic & Technological Development Zone (ETDZ). This commitment is a significant step forward in CIRCOR’s strategy to support the company’s customers in China and Asia Pacific.


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