Sundyne Enhances LMV 803Lr Pump with Ultra-Low NPSHr Performance and Improved Capabilities that Minimize Installation and Maintenance Costs

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Updates Enhance the API 610, OH3 Pump’s Value for the Oil & Gas, Refining, Chemical & Petrochemical Industries

The LMV 803Lr is an API-compliant, direct-drive, heavy duty vertical inline centrifugal pump

The LMV 803Lr is ideally suited for low NPSHr processes that require booster pumps, LNG processing & storage applications or downstream refining applications.

Sundyne, a global leader in the design and manufacture of API-compliant centrifugal pumps and integrally-geared compressors today announced a series of enhancements to the LMV 803Lr high-flow pump designed to deliver ultra-low NPSHr performance while reducing installation and maintenance costs.

The API-compliant LMV 803Lr is a direct-drive, heavy duty vertical inline centrifugal pump that shares technology with Sundyne’s legendary 800-series pumps, which are widely used in the oil & gas, refining and hydrocarbon processing industries. The design of the LMV 803Lr features Sundyne’s innovative inducer technology and backswept impeller, which allows the pump to reach unparalleled NPSHr performance (less than 10 ft/3m up-and-down the curve) without the risk of cavitation.

Updates announced today improve the LMV 803Lr pump in the following areas:

  • An enhanced throat bushing improves seal performance for light hydrocarbon applications. This facilitates API 682 seal chamber compliance utilizing existing castings with a consistent footprint.
  • A new oil mist bearing box (which comes standard) complies with API 610 requirements and offers more robust loading capabilities, reducing the need for periodic greasing. A grease lubricated bearing box is also available.
  • An updated cryogenic design for NGL recovery, ethane, and LNG production & storage applications.
  • An expanded hydraulic package meets a wider range of process parameters and delivers ultra-low NPSHr up-and-down the curve. The total size of the LMV 803Lr is just 25-percent as large as competitive horizontal pumps. This small footprint reduces service & maintenance costs, because in many instances a crane is not required to install and maintain the pump.

“The LMV 803Lr can be installed at grade level, which enables operators to meet their NPSHr requirements without a sump pit, or elevated tower skirt,” said Sundyne’s Product Line Manager, Helene Balligand. “By eliminating the need to install pumps below grade, or lift vessels to attain NPSHr, plants can save tens-of-thousands of dollars on installation costs, while simplifying maintenance and streamlining operating costs over the life of the pump.”

The latest enhancements to the LMV 803Lr make the pump ideally suited for low NPSHr processes that require booster pumps, LNG processing & storage applications, bubble point light-hydrocarbon applications, or downstream refining applications such as fractionation. The LMV 803Lr is also used in industrial applications, such as boiler feed, or seawater applications.

Pump users and Sundyne distributors interested in learning more about the newly-enhanced LMV 803Lr are invited to contact or visit:

About Sundyne:
Headquartered in Arvada, Colorado with operations and presence in Europe, the Middle East, India, Japan, China and throughout Asia, Sundyne is a leading manufacturer of precision-engineered highly reliable, safe, and efficient centrifugal pumps and compressors for use in hydrocarbon processing, chemical processing, power generation, industrial, and high-pressure water applications. Sundyne is the world leader in delivering low-flow, high-head integrally geared centrifugal pumps and compressors as well as a leader in the supply of safe and leakage-free sealless magnetic drive centrifugal pumps and diaphragm compressors. Sundyne pumps and compressors designs are compliant with the industry’s most stringent API, ANSI/ASME, and ISO standards. To learn more about the Sundyne family of precision-engineered pumps and compressors, please visit

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