Built to comply with exacting API 685 standards, the LMV-801S is a vertical inline single stage overhung sealless magnetic drive pump.

Since their debut in 1962, Sundyne LMV centrifugal pumps have set the standard for high-head, low-flow fluid handling technology. Now, Sundyne introduces the next generation of our LMV technology with the release of the LMV-801S. Based on Sundyne HMD Kontro GS drive technology and built to comply with exacting API 685 standards, the LMV-801S is engineered to handle heavy-duty applications in the world’s most challenging environments, delivering maximized up time, reduced maintenance costs and optimized productivity over the lifecycle of the unit.

- Flows to 380 gpm (86 m3/hr)
- Heads to 720 ft (220m)

The LMV-801S is dimensionally interchangeable with the traditional mechanically sealed LMV-801 (OH3/5), and can simply be dropped in to existing pipework, making this sealless upgrade possible without the need to modify piping and foundation layouts. Additionally, a plug-in version of the pump is available, enabling customers to swap out the mechanical seal drive end with the new sealless option without disconnecting the existing LMV-801 casing and diffusers from the pipeline.

Performance Envelope - 60Hz

Performance Envelope 50 Hz


Heads To  0 to 720ft 0 to 220m
Flows To  20 to 380gpm 4.5 to 86m3/hr
Max Power  0 to 100hp 0 to 75kW
Temp Range  -40 to 400°F -40 to 205°C
Number of Stages  One
Max Case Working Pressure  580 psi 40 bar
Speed Range  1,750 to 3,500rpm-60Hz 1450 to 2,900rpm-50Hz
Materials of Construction  Carbon Steel, 316 SS, Duplex
Bearing Materials Available Silicone Carbide
Hydrotest Pressure  870 psi 60 bar
Max Viscosity  200 cSt
Industry Standard  API 685 vertical inline single stage overhung sealless magnetic drive pump
Solids Range  Clean liquids only
Motor Details  NEMA C Face Mounted
Mounting Configurations  Close Coupled
Seal Configurations Available  Sealless
Available Inducer  Yes
Available Flanges  600# RF
Pump Case Corrosion Allowance  1/8 inch (3.2mm)
Suction and Discharge Size  3" x 2"

Sealless Centrifugal Pumps API 685
Sealless magnetic drive centrifugal pumps that meet API-685 and API-610 standards. No seals that leak make it safe and reliable. Perfect pumps for difficult to seal, hazardous, and high-value applications for petroleum, heavy duty chemical and gas industry services.
Centrifugal High Head, Low Flow Pumps
Sundyne wrote the book on High-Head, Low-Flow pumps over 50 years ago and everyone else has been playing catch up ever since. Sundyne Pump models are available in single and multi-stage configurations with small, compact footprints.
Sealless Magnetic Drive Vertical Inline Pumps
The vertically mounted GSPV inline pump from Sundyne HMD Kontro combines API 685 expertise with the benefits of a sealless pump in a compact package

HMD Kontro Sealless Magnetic Drive Pumps
Sundyne HMD-Kontro sealless magnetic drive pumps meet API-685, ASME / ANSI B73.3 and ISO 2858 standards. They do not leak and are extremely reliable and safe.
Sundyne Pumps
Sundyne integrally geared and direct drive centrifugal pumps meet API-610 OH6, OH3, OH5, and ISO-13709 standards. Sundyne is the industry leader in high-head, low-flow pump applications.

API American Petroleum Institute
Sundyne has a wide range of heavy duty centrifugal pumps that are compliant with American Petroleum Institute API-610, 10th and 11th Edition (OH1, OH2, OH3, OH4 OH5, OH6, BB1, BB2, BB3, BB5, VS1, VS2, VS4, VS6) and API-685 sealless magnetic drive standards Our customers in the oil refining and petrochemical industries have for years turned to Sundyne pumps for their high-head, low-flow services and other difficult or hazardous applications.