HPGSP OH2 high pressure centerline mounted single stage sealless magnetic drive pumps are built to API 685 specifications and suitable for heavy duty pump applications.

The OH2 sealless magnetic drive pump is available in eleven hydraulic sizes and two basic frame sizes to suit power requirements.  Standard materials of construction are S-81 and S5, D-1J and D-2J with other variations available on request.  

HPGSP sealless magnetic drive pumps comply with the requirements of API 685 for end suction, centrifugal pumps required by the oil, gas, petroleum and heavy chemical industries. 

Heads to 700 ft (150 m)
Flows to 1500 gpm (290 m3/hr)
Temperature range:  -150 – +500 °F (-100 - +260 °C)
Pressure: 2,700 psi (185 bar)

Due to improved magnet drive technology we build more efficient and powerful pumps, including high pressure units such as the HPGSP, thus increasing the application scope for sealless magnetic drive technology.

Performance Envelope-60Hz

Performance Envelope-50Hz


Heads To  1 to 700ft 1 to 150m
Flows To  1 to 1,500gpm 1 to 290m3/hr
Temp Range  -150 to 500°F -100 to 260°C
Number of Stages  1
Max Case Working Pressure  2,700 psi 185 bar
Industry Standard  API 685, API 610 OH2 Centerline mounted single stage overhung
Dimensional Standards  API-685
Available Inducer  Yes

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.

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.

  • Pipeline
  • Petrochemical Processing
  • Booster
  • Benzene Reduction
  • Petroleum Production and Refining
  • Aromatics
  • Acid Transfer
  • Crude Oil Transfer
  • Caustics
  • Amine Treating
  • Chemical Transfer
  • Hot Oil
  • Chemical Processing
  • Crude Pipeline
  • Pipeline Booster
  • Heavy Oil and Upgrading
  • Condensate

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.

  • Refining
  • Chemical Processing
  • Acid Transfer