Sundyne LMV-801S

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LMV-801S Sealless Magnet Drive Pump


The compact, zero leakage solution for low flow, now NPSHA duties.

Directly interchangeable for retro-fit of existing sealed unit

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

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.

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.


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 AvailableSilicone 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"