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

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API 682 and API 685 Options, plus Additional Enhancements can be Retro-fitted onto Installed Sundyne OH3 and OH5 Pumps

LMV 801 pumps are optimized for oil & gas, petrochemical and general industrial markets.

Many of the enhancements announced today can be adapted to existing Sundyne vertical pumps through retro-fit kits in a simple and straightforward manner.

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, Sundyne is a leading manufacturer of highly reliable and efficient centrifugal pumps and compressors for use in oil and gas production, refining, chemical, petro-chemical, power generation and water processing industries. Sundyne is the world leader in delivering low-flow, high-head integrally geared centrifugal pumps and compressors; as well as safe and efficient sealless magnetic drive pumps. Sundyne pumps and compressors meet stringent API and ISO standards. To learn more about the Sundyne family of precision engineered pumps and compressors, please visit Sundyne is owned and operated by Accudyne Industries.

About Accudyne Industries:
Accudyne Industries is a global provider of precision-engineered flow control and compressor systems responsible for powering the world’s most economically vital industries. These process-critical machines deliver unflagging performance in incredibly demanding environments, giving confidence to the mission of their customers. Today, Accudyne is powered by more than 2,800 employees at 13 manufacturing facilities. For more information, visit

Don Hawkinson

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