Blackmer Products

Better Get Blackmer®

Blackmer® is the leading global provider of innovative, high-quality sliding vane, centrifugal, screw and regenerative turbine pump, and reciprocating gas compressor technologies for the safe transfer of liquids and gases.

View Our Products

Sliding Vane Pumps

View All

Blackmer Markets

Providing Innovative Product-Transfer Solutions for a Variety of Markets and Applications

Blackmer provides innovative product transfer solutions for many markets and applications, including in the chemical process, energy, transport, military & marine; general industrial, and oil & gas industries.

View Our Markets

General Industrial

View Market

Blackmer® Offering GNX & GNXH Series Pumps For Chemical-Transfer Applications

by PSG | Aug 07, 2017
Blackmer-GNXGrand Rapids, MI – August 7, 2017 – Blackmer®, part of PSG®, a Dover company and a global leader in positive displacement, regenerative turbine and centrifugal pump, and reciprocating compressor technologies, is pleased to announce that its GNX and GNXH Series sliding vane pumps incorporate numerous design features that help them excel in a wide variety of chemical-transfer applications.

The design of GNX and GNXH Series pumps eliminates traditional couplings and features a commercial-grade, single-stage gearbox with aluminum housings, NEMA C-face or IEC D-flange motor connections and a proprietary output shaft that is compatible with the Blackmer keyed pump shaft. This revolutionary design makes GNX and GNXH Series pumps the industry’s first alignment-free, reduced-speed pumps for use in both portable and stationary applications. An enhancement of the Blackmer legacy GX Series product line, GNX and GNXH Series pumps are the ideal solution for chemical-transfer applications because they are more efficient than competitive technologies, while providing high-level performance, high suction lift and line-stripping capabilities with low maintenance and life cycle costs. The pumps’ robust, commercial-grade gear reducer is capable of producing low ratios, resulting in more precise flow rates. Also, the locked-rotor between-bearing design extends mechanical seal life and improves operational safety, and the compact footprint utilizes a close-coupled, inline design that allows the pumps to be a like-for-like replacement in existing systems.

In addition, the GNX and GNXH Series pumps have been manufactured with a larger operating range than competitive designs, offering higher flows and higher pressure. They are also the only alignment-free pumps that can dry run without damage during self-priming and line-stripping operations.

GNX and GNXH Series pumps are available in 2- and 2.5-inch flanged port sizes (3- and 4-inch sizes to follow Q1-2018). Combined, these sizes provide flow capacities ranging from 20 to 500 gpm (76-1,893 L/min) at working pressures up to 175 psi (12.1 bar). Both 90-degree and 180-degree porting are standard. These pumps are suited for both portable and stationary applications. 

For more information on Blackmer, please go to Blackmer is a product brand within PSG, a Dover company. For more information on PSG, please go to

About Blackmer: 
Blackmer® is a leading global provider of innovative and high-quality positive displacement, regenerative turbine and centrifugal pump, and reciprocating compressor technologies for the transfer of liquids and gasses. For more than a century, the Blackmer name has stood for unparalleled product performance, superior services and support, well-timed innovation and a commitment to total customer satisfaction. Supported by a worldwide network of distributors and original equipment manufacturers, Blackmer pumps and compressors are used in a multitude of applications in the Process, Energy and Military & Marine markets. Blackmer— headquartered in Grand Rapids, Michigan, USA—is part of PSG®, a Dover company.

About Dover Corporation:

Dover is a diversified global manufacturer with annual revenue of approximately $7 billion. We deliver innovative equipment and components, specialty systems, consumable supplies, software and digital solutions, and support services through three operating segments: Engineered Systems, Fluids and Refrigeration & Food Equipment. Dover combines global scale with operational agility to lead the markets we serve. Recognized for our entrepreneurial approach for over 60 years, our team of approximately 24,000 employees takes an ownership mindset, collaborating with customers to redefine what's possible. Dover is headquartered in Downers Grove, IL, USA.

Marketing Contact:
Mark Pyk, Marketing Communications Manager 
PSG®, a Dover company.
616-475-9330 or

Media Contact:
Darren Wight, VP Media & Publicity
DeanHouston (agency for PSG®)
513-280-0047 or