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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® 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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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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The Heavy-Duty ANSI PLUS Pump

Centrifugal Pumps from Blackmer stand alone in the crowded centrifugal space because they are ANSI Plus pumps. This means they are ANSI pumps that comply with key parts of the API 610 standard, bringing a full set of reliability and ease-of-use features not found in any other ANSI pump.

Designed and built to exacting standards, Blackmer Centrifugal Pumps are highly reliable and perform exceptionally well in safely transferring critical and valuable fluids in the harshest of service conditions, including chemical, mining de-watering, water & wastewater, and liquid terminals. With flow rates up to 4,500 gpm (17,034 L/min), a standard temperature range of -40° to 400°F (-40° to 204°C) or higher thanks to the High Temperature Series, Blackmer Centrifugal Pumps can withstand severe and continuous operating conditions, where uptime is vital for operations with factory consultation. By offering maximum reliability, uptime and extended pump life, Blackmer Centrifugal Pumps are the pumps to turn to when all others fail.

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Centrifugal Pump Advantages

Wider Window of Operation Off the BEP (Best Efficiency Point)

Designed for full curve operation, Blackmer Centrifugal Pumps offer the widest window of operations off the BEP of any conventional centrifugal pump.

Process Pump Challenges:
  • Due to process changes and variations, the majority of process pumps operate off the BEP where radial loads create high stresses
  • Conventional pumps are prone to damaging shaft vibration under off-BEP conditions
  • Seal and bearing failures result from vibration damage
Centrifugal Solution:
  • Heavy-duty design for the toughest applications in the process industry
  • Blackmer Centrifugal Pumps are designed to prevent vibration under high radial loads
  • Blackmer Centrifugal Pumps offer the widest operational window off the BEP of any standard process pump
  • Seals and bearings last longer for greater system reliability
  • When your process demands that pumps vary from the BEP, Blackmer Centrifugal Pumps will save you money and prevent lost production

Military Specifications

Engineered to rigorous standards, Blackmer Centrifugal Pumps have met numerous military standards for over 50 years. This is why they can be found on all operating class vessels for the United States Navy. These military standards include:

  • MIL-S-901-D
  • MIL-STD-167
  • MIL-P-19131
  • ASTM DF1510

Centrifugal Performance Assurance

Blackmer offers performance assurance guarantees for all our Centrifugal Pumps. We are confident in their ability to perform in even the most extreme operating conditions. Blackmer offers a five year power end performance assurance and a one year mechanical seal performance assurance.

See the current Blackmer Centrifugal Pumps Warranty Form for full product warranty details including exclusions and limitations of liability.

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. Program includes power end conversions that were purchased with Blackmer Centrifugal Pumps back cover conversions. Limit of one seal claim per application.

API 610 Features

By complying with key parts of the API 610 standard for centrifugal pumps, Blackmer Centrifugal Pumps can be a cost-effective alternative to pumps that are in full compliance with the standard. Blackmer Centrifugal Pumps are:

  • Designed to meet the minimum standard of a 20-year service life and three years uninterrupted operation
  • Available with ANSI/ASME class 300 flanges
  • Equipped with bearing houses that can be removed from service without disturbing the driver. Sufficient cooling is achieved with a large oil sump and deep cooling fins. For extreme temperature operations, a copper coiling coil is an available option, and labyrinth seals are standard equipment.
  • Available with self-venting top discharge with threaded casing drains. Additional available options include flanged drains and side discharge.
  • Offered with standard and optional materials that comply with the material classes

Blackmer Centrifugal High Temperature Series

Blackmer Centrifugal High Temperature Series utilize high-temperature flanges, elastomers, and a unique centerline mount that supports high temperatures, these pumps are able to exceed the 400°F (204°C) standard temperature limit of conventional centrifugal pumps. This unique design feature allows the Blackmer Centrifugal High Temperature Series to be used in a wide variety of high-temperature applications, including thermal oils, petrochemical, heat transfer, plastics, paper, and more. They are pre-configured to meet temperature requirements of up to 450°F (232°C) with the 450°F Line, 650°F (343°C) with the 650°F Line, and even 750°F (398°C) with additional configurations and factory consultation.

Blackmer Centrifugal Pump Design Features

Blackmer Centrifugal Pump Improvements

Unlike other centrifugal pumps, Blackmer Centrifugal Pumps are designed around the seal, bearing and shaft, which account for 90% of pump failures. In addition, the following design advantages help Blackmer Centrifugal Pumps address, solve and fix other common centrifugal pain points.

Packing & Seal

Blackmer Centrifugal Pumps are offered with a 1-year mechanical seal guarantee. Blackmer is confident in this guarantee thanks to low- to no-deflection shafts that are shorter and thicker than competing shafts, saving the mechanical seals from violent wear due to shaft deflection. In addition, a large bore seal chamber lubricates, cleans and cools the seal to prevent premature seal failures.

Centrifugal seal chambers are also designed without a backstop, which eliminates dead space and allows the fluid to move in and move out keeping the mechanical seal face in a cleaner and cooler environment. Unlike traditional ANSI pumps where fluid and debris get trapped right in front of the mechanical seal face, building up with debris and heat that negatively impact the mechanical seal.

Oversized Bearings

Blackmer Centrifugal bearings are 1-2 times larger than generic bearings in ANSI centrifugal pumps. These larger bearings allow the pump to provide greater load capacity and longer bearing life. Additional bearing features include:

  • Bearings are retained, meaning the lock collar bolted retainer features eight bolts securing it to the thrust cartridge. This positively engages the thrust bearing and eliminates all the dynamic loads on the bearing.
  • Bolt retainer cover locks thrust bearing into a cartridge for enhanced reliability
  • Angular collar thrust bearings are the same as the ones specified by API 610

Stiff and Solid Shaft

Featuring the lowest shaft deflection ratios in the industry, the Blackmer Centrifugal Pumps’ solid shafts are engineered with a one-piece design that eliminates the need for sleeves. These shafts are also much shorter and thicker than competing ANSI pump shafts, which prevents common vibration damage, increases stability at the seal area and improves bearing life.

Centerline Casing Support Legs

This design feature allows the Blackmer Centrifugal Pump to operate in high temperatures of up to 400°F (204°C). The centerline casing support legs also allow the pump to expand, which prevents the problematic thermal growth on the casing that happens with many other ANSI pumps.

Seal Chamber Jacket

This optional feature on the Blackmer Centrifugal Pump adds API Plan 2 external cooling to the pump. This prevents seal failure due to thermal shock from sudden and drastic temperature changes that can crack the brittle mechanical seal faces.

C-Frame (NEMA) or D-Flange (IEC) Motor Adapter

The design of the C-FRAM adapter eliminates any misalignment concerns, removing any unnecessary strain on the pumping elements, especially the mechanical seal. It also increases pump reliability by reducing vibration and prolonging mechanical seal life.

Blackmer Centrifugal Pump Curves

Blackmer publishes all the Composite Pump Curves for all our Centrifugal Pump models and sizes. These curves can be found in our Technical Reference Catalog.