Integrally geared centrifugal ISO-13709, API 610, 11th Edition, OH6 pump. Flows to 400gpm (91m³/hr), Heads to 6,300ft. (1,921m).

The LMV/BMP-311 is an integrally geared driven centrifugal pump.  It is designed to ISO-13709 and API-610, 11th edition (OH6) standards for maximum performance and reliability. With a small footprint highly reliable Sundyne pumps will meet your application needs.

- Flows to 400 gpm (91 m³/hr)
- Heads to 6,300 ft (1,921 m) 

Available in vertical or base-mounted configurations, this pump is engineered for critical high-head, low-flow, heavy-duty services within the refining, chemical, petrochemical, power generation, gas production and specialty processing industries.


Learn more about the NEW 31X Gearbox Upgrade Kit


Performance Envelope



FastLANE Expedite Program


Heads To  100 to 6,300ft 22 to 1,348m 60HZ: 32 to 1,921m
Flows To  1 to 400gpm 8 to 73m3/hr 60HZ: 10 to 91m3/hr
Max Power  200 150
Temp Range  -200 to 650°F -130 to 340°C
Number of Stages  1.0
Max Case Working Pressure  1,260 psi 155 kg/cm2
Max Suction Pressure  1,000psi, (71kg/cm²)
Differential Head  6,300 ft 1,921 m
HP Dependent on Diff. Head  200 hp 150 KW
Standard Delivery  8 Weeks
Speed Range  6,000 to 20,000rpm-60Hz
Materials of Construction  Click link for list of materials
Bearing Materials Available Ball Bearings, Journal Bearings
Hydrotest Pressure  3,240 psi 225 kg/cm2
Max Viscosity  750 cp
Industry Standard  API-610
Solids Range  0.015" (0.381mm), 400 microns
Mounting Configurations  Vertical / Horizontal
Number of Available Hydraulics... 1.0
Seal Configurations Available  Single, Double, Tandem
Available Inducer  Yes
Available Flanges  600# ANSI RF, 900# optional (600#, 900# RJ)
Pump Case Corrosion Allowance  0.125" (3.17mm)
Suction and Discharge Size  3" X 2"
API Plans for Sundyne Pumps  11, 12, 13, 21, 23, 31, 32, 41, 52, 53, 54, 61, 62, J

OH6 API-610, ISO 13709 Pumps
Sundyne API-610 11th Edition. The API OH6 is a horizontal or vertical, single stage, overhung, high speed pump that has an integral gearbox mounted to the pump housing. The gearbox is driven by the motor with a flexible coupling, and the pump impeller is mounted directly to the high speed shaft of the gearbox.

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.

  • Light Oils
  • Heat Recovery Steam Generator
  • Organic Chemicals
  • Diesel Fuel
  • Circulating Water
  • Bulk Chemicals
  • Condensate Cooling Water
  • Condensate Extraction
  • Hydrocracking
  • Brine Injection
  • Condenser Cooling
  • Petrochemical Processing
  • Crystallizers
  • Mixed Liquor
  • Cryogenic Service
  • Butane Transfer
  • Booster
  • Fertilizer
  • Water Boosting
  • High Temperature Service
  • Auxiliary Feed
  • Lubricating Oil
  • Gasification
  • Brine
  • Oil Production
  • Petroleum Production and Refining
  • Oxygenates Production
  • Gasoline
  • Gas Production
  • Aromatics
  • Biofuels
  • Acid Transfer
  • Utility
  • Reactor Feed
  • Corrosive Services
  • Brine Disposal
  • Visbreaking
  • Alkylation
  • Seal Injection
  • Inorganic Chemicals
  • Crude Oil Transfer
  • Fuel
  • Cargo Loading and Unloading
  • Gas Scrubbing
  • Flammable Liquids
  • Biodiesel
  • Chillers
  • Concentrator
  • Steam Generator Feed
  • Isomerization
  • Amine Treating
  • Heater Charge
  • Offshore
  • Separation
  • Catalytic Cracking
  • Water Injection
  • Synthetic Fuels
  • Sour Water
  • Water Supply
  • Catalytic Reforming
  • Deep Well
  • Crude Oil Loading
  • Bioprocessing
  • Boiler Feed Booster
  • Water
  • Water Treatment
  • Circulation
  • Reactor Circulation
  • Dehydrogenation
  • Tank Farm Transfer
  • Water Cooling
  • Hydrotreating
  • Recycling Services
  • Propane Transfer
  • Condensate
  • Brine Treatment
  • Boiler Circulation
  • Boiler Feedwater
  • Water Pollution

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.
ISO International Standards Organization
Sundyne centrifugal pumps that are compliant with the International Organization for Standardization ISO 13709 standards for oil and gas production, refining, chemical and petrochemical operations.

  • Production
  • Conventional Boiler
  • Refining
  • Auxillary
  • Oil and Gas
  • Power Generation
  • Water Resources
  • Water Treatment
  • Chemical Processing
  • General Industry
  • Combined Cycle
  • Water Supply and Distribution



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