Blackmer Technology

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Get in-depth information about Blackmer pump and compressor technologies while learning why our solutions are the ideal choice to help solve your most critical fluid-handling applications.

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Blackmer Products

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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.

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Sliding Vane Pumps

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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.

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Frame A/LD17 Centrifugal Pumps

The Frame A and LD17 Centrifugal Pumps are pioneering process pumps with the built-in technology to get the most from seal and bearing life. Designed around the seal where 90% of pump failures occur, these centrifugal pumps have a stiffer, heavy-duty shaft and larger bearings resulting in the widest operational window off the Best Efficiency Point (BEP) than any standard process pump. These pumps come in 11 different sizes, meaning they are applicable for a wide range of fit scenarios and application needs.

The Frame A/LD17 has the stiffest shaft in the industry, which dramatically reduces seal and shaft failures. The Frame A/LD17 reaches flow capacities of 1,400 gpm (320 m3/hr) and is available in IPP metric construction.

Features and Benefits

  • Larger bearings than competing pumps for greater load capacity and bearing life
  • Bolted retainer cover locks thrust bearing into cartridge for enhanced reliability
  • Angular contact thrust bearings
  • Low maintenance, long life, maximum value process pump
  • Most stable shaft in the industry
  • Lowest L3/D4 stiffness ratio of any competitive size pump – 17 (.65) Frame LD17
  • Dramatically reduces bearing, sealing device and shaft failures
  • Frame A meets ASME/ANSI dimensional specifications
  • LD17 configuration available for severe-duty applications
  • Capacities to 1,400 gpm (320 m3/hr)
  • Equipped to accept a C-Frame (NEMA)/D-Flange (IEC) motor adaptor, providing
    alignment of motor and power end without special tools or excessive labor
  • Right or left side discharge is possible with optional special foot
  • Heavy-duty construction and low stiffness ratios on shafts
  • Prevents common vibration damage and improves seal life
  • Short shaft overhand reduces bearing load to extend bearing life
  • Oversized heavy duty bearings provide greater load capacity and extend bearing


  • Chemicals
  • Mining de-watering
  • Water/wastewater
  • Liquid terminals

Technical Data

  • Ductile iron, 316 stainless steel and CD4MCu, A-20 materials available
  • Metric and ASME (ANSI) models available
  • Max. temperature: 400° C (750° F)
  • Micrometer adjustment nuts simplify and ensure precise impeller setting

Performance Assurance

Five Year Power End Performance Assurance

Should any Blackmer Centrifugal Power End component fail within 5 years of the original installation, including bearings or shafts that have fractured, a free replacement component will be provided. This offer is limited to a claim for one of each component per power end.*

One Year Mechanical Seal Performance Assurance

Should any factory supplied and installed mechanical seal fail within one year after the sale of the pump and seal, a spare parts kit (with materials the same as the original seal) will be provided at no charge. Limit of one seal claim per application.*

*See current Blackmer Warranty form 001-002 for full product warranty detail including exclusions and limitations of liability.



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  • ANSI B73.1M Compliance
  • MIL-S-901D Gr. A &
    MIL-STD-167 Type 1

Now hear from our customers about what they had to say about Blackmer Centrifugal Pumps: