Sundyne Announces Upgrade Options for LMV 801 Line of Direct Drive Pumps

ARVADA, COLO. FEBRUARY 09, 2018 – Sundyne, a global leader in the design and manufacture of pumps and compressors today announced a series of upgrades to its line of LMV 801 vertical direct drive centrifugal pumps.

Each API 610 (OH3 or OH5) pump is optimized to address flows to 380 gpm (86 m³/hr), and heads to 720 ft (219 m), which are demanded by a wide range of applications across the upstream oil & gas, midstream gas processing, and downstream refining, petrochemical and general industrial markets.

New additions to the line of LMV 801 direct drive pumps include:

801CS (API 682 Cartridge Seal) – utilizes a self-contained process seal that fits seamlessly onto the pump shaft as a single assembly. The compact cartridge seal provides operators and maintenance engineers with a convenient alternative to standard component seals. It reduces errors in installation while preventing many of the common causes of seal failure. The 801CS also utilizes a new bearing box which incorporates a stiffer shaft, larger oil capacity, easy access to the cartridge seal, and enhanced oil cooling.

801S (API 685 sealless magnetic drive) – this configuration combines the hydraulics of Sundyne’s direct-drive pumps with the magnetic drive technology pioneered by Sundyne HMD/Kontro more than 70 years ago. It is built to comply with both API 685 and API 610 standards, and is specifically engineered to eliminate emissions and improve personnel safety without compromising on performance. Dimensionally-interchangeable with Sundyne’s standard 801 pump, retro-fit kits are available to convert mechanical seal drive components with the new sealless option, without having to disconnect the existing LMV-801 casing and diffusers from the piping.

Flexible Mechanical Seal and Sealless Configurations – the line of direct drive pumps utilizes standard seal configurations, including single, double or tandem. Any LMV-801 pump can be converted in the field to an ultra-reliable, API 682 cartridge seal, or leak free API 685 sealless magnetic drive configuration.

“For decades, there have been thousands of LMV-801 pumps reliably deployed in refineries, chemical plants, power plants and general industrial manufacturing operations around the globe – and many of the enhancements we’re announcing today can be adapted to existing Sundyne vertical pumps through retro-fit kits in a simple and straightforward manner,” states Tom Helmreich, Sundyne global engineering director.

Each Sundyne direct drive pump is designed to operate at its best efficiency point and maximize reliability and tolerance to system variations. The new enhancements and upgrade options to the line of LMV 801 pumps are designed to further enhance performance, while simplifying installation and maintenance requirements.

Standard deliveries are 16 weeks. For further information, visit

About Sundyne: 

Headquartered in Arvada, Colorado with operations and presence in Europe, the Middle East, India, Asia, Japan and China, 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 pump and compressor 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



Mike Dean

About Sundyne

Sundyne is the world leader in delivering low-flow, high-head, integrally geared centrifugal pumps and compressors, sealless magnetic drive pumps and diaphragm gas compressors. Sundyne’s precision-engineered, highly reliable, safe & efficient pumps and compressors are used in chemical, petrochemical, hydrocarbon, hydrogen, pharmaceutical and industrial applications. Sundyne pumps and compressors are also available in API, ANSI/ASME, ISO, and other industry compliant designs.