Proven performance, when and where it matters most.

Warren Pumps applies battle-tested experience and tactical acumen to solving customer problems—prevailing in the world’s most challenging environments.

For well over a century, Warren Pumps has provided superior solutions for the U.S. Military, as well as for a wide variety of industrial and marine customers. We specialize in twin-screw positive-displacement pumps for industry, along with the development of pumping solutions that include centrifugal, gear and piston.

A CIRCOR brand, Warren Pumps has a long history of solving unique problems for our customers, applying years of uncommon expertise in design, manufacturing, packaging, testing and servicing of products. Resourceful and focused, our engineers have pioneered the application of our two-screw pump technology for pumping everything from asphalt to caulking compounds.

Our products are expected to perform under pressure in some of the most remote places on the planet, land and sea. We manufacture our solutions to meet these expectations, combining the highest quality materials with an exceptional Quality Assurance program and a rigorous testing process.

Warren Pumps are manufactured in Massachusetts by CIRCOR Naval Solutions, LLC. The facility holds the following certifications: ANSI/ASQC Q 9001‚ Mil –I-45208‚ and ISO 9001.

Featured Content

Technical Article

Is Twin-Screw Pump Suction Performance Better Than Centrifugal? An Engineering Perspective.

For a considerable length of time, the conventional wisdom in the pump industry has been that twin-screw pumps have better suction performance when compared to centrifugal pumps. But this wisdom actually has little basis, except in a few cases. In the new issue of Pump Engineer, CIRCOR’s Engineering Director Simon Bradshaw explores the origin of this belief, takes issue with it, and then describes how new technologies can combine to deliver the suction performance that actually matches the industry common knowledge.

Twin Screw Technology

Twin Screw Pumps


Our Houttuin and Warren® brands have been industry standards for over 80 years.

Twin-screw pumps are delivering results in even the toughest of conditions all over the world.

And no one knows this technology like CIRCOR.

High performance meets high reliability.

Because they're designed to move fluid at a consistent rate, regardless of pressure, twin-screw pumps deliver results where centrifugal pumps are unable to and are able to actually increase efficiency as viscosity rises.

But twin-screw pumps don't just offer performance, since they are designed to eliminate metal-on-metal contact which means a longer life, improved reliability and less downtime.

In addition, unlike other pump options, two-screw pumps can:

- Tolerate contamination
- Handle a large range of viscosities and fluids
- Low NPSH required
- Run dry
- Low fluid sheer
- Operate at variable speeds

And with twin-screw pumps' ability to handle multiple liquids at multiple viscosity rates, they can be used for a wide range of applications.

Case Study

Keeping the Lights On: Performance Insurance for Mission Critical Pumps in A Peaking Power Plant

Just because a twin-screw fuel pump is more than 40 years old and has never seen a doctor doesn’t mean it shouldn’t. Read our new case study to find out how a primary supplier of backup electrical power benefited from a comprehensive health check performed by a CIRCOR authorized service center on two mission critical pumps. When they learned the pumps were operating well outside the factory clearances and design tolerances the equipment was built for, there were decisions to make.

Featured Products

Warren - Horizontal Twin Screw Pump Series J-80X

Horizontal Twin Screw Pump up to 28 bar

Warren - Horizontal Twin Screw Pump Series J-40X

Horizontal Twin Screw Pump up to 69 bar

Warren - Horizontal Twin Screw Pump Series J-70X

Horizontal Twin Screw Pump up to 31 bar

Warren - Horizontal Twin Screw Pump Series J-60X

Horizontal Twin Screw Pump up to 55 bar

Warren - Horizontal Twin Screw Pump Series J-50X

Horizontal Twin Screw Pump up to 69 bar

Warren - Horizontal Twin Screw Pump Series J-30X

Horizontal Twin Screw Pump up to 69 bar

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.
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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