HMD Kontro GS – General Service Frame 0 Sealless Magnetic Drive Pumps

The GS (General Service) range of pumps from HMD Kontro are versatile pumps which are designed to cover a wide range of applications using minimum pump models through maximising component interchangeability.

The range includes the GSA (ASME standard pump) and the GSI (ISO DIN standard pump) with a GSL option also available for temperatures down to -100°C (-150°F).

Benefits Of HMD Kontro GS Pumps:

    • Sealless design for total product containment
    • Suitable for hydrocarbon, toxic, aggressive, hot and valuable product
    • Conform to ISO and ASME standards
    • High efficiency wet ends
    • Designed to ensure maximum flow and head coverage across all ranges
    • Choice of metallic materials of construction
    • One fully confined casing / containment shroud / shell joint

GS pumps are typically used in toxic, aggressive, hot, crystallising and high value processes. They are designed to comply with specifications required by the oil, gas, petroleum and heavy chemical industries.

Flows to 60 m³/hr (264 gpm)
Heads to 41 m (134 ft)
Pressure 18.9 bar / 275 psi
Temperature Range -40 to 315°C (-40 to 600°F)

Chemical Processing

  • Chlor-Alkali
  • Pesticides
  • Insecticides
  • Herbicides
  • Fertilizer

Hydrocarbon Processing

  • Sour water
  • Sulfuric acid
  • Benzene
  • Xylene
  • Toluene


  • Produced water
  • LACT

Aquatic and Marine

  • Seawater
  • Caustic

Battery Manufacturing

  • Sulfuric acid
  • Potassium hydroxide


  • Bio-diesel
  • Ethanol

Food and Beverage

  • Fragrances


  • Sodium cyanide
  • Sulfuric acid
  • Hydrochloric acid


  • Silicon oil (Heat transfer fluid)

Pulp and Paper

  • Chlorine
  • Sulfuric Acid

Semiconductor Manufacturing

  • Hydrofluoric acid
  • Sulfuric acid

Steel Finishing, Pickling, Etching and Plating

  • Hydrochloric acid

Water and Wastewater Treatment

  • Sodium hypochlorite
  • Sodium hydroxide
  • Sulfuric acid
  • Ferric Chloride

Our pumps combine cutting-edge technology with over seventy years of expertise and experience to give you complete piece of mind.

Product Security – Magnetic drive sealless pumps are the safest and most robust means for liquid transfer. By eliminating the seal, the primary opportunities for leaks associated with traditional sealed pumps are completely removed.

Efficiency – By improving performance and reducing maintenance calls, sealless magnetic drive pumps can dramatically lower downtime and lost production. In sum, this equates to maximised efficiency that can be seen on your bottom line.

Reliability – Sealless magnetic drive pumps have proven their reliability in even the most severe climate conditions, from the frozen tundra of Siberia to the deserts of the Middle East and the humid climes of Louisiana’s refineries. In fact, there are  HMD Kontro pumps that have been in operation for over 30 years and are still running today.

Safety – HMD Kontro sealless magnetic drive pumps are manufactured to conform to international design and safety standards, including ATEX, ISO, API and ANSI requirements.  Plus, with no mechanical seals to leak hazardous chemicals, these pumps offer a clear choice for process industry professionals who regularly deal with volatile or high value materials.

Cost-effective – Sealless magnetic drive pumps require less monitoring and maintenance than traditional sealed designs, equating to substantial savings over the life of the pump.

Service – Global service centres keep HMD Kontro sealless magnetic drive pumps operating with peak performance.  Standard pumps and parts are available from the factory and in the field.

US 60 Hz

Heads to 190 ft
Flows to 370 gpm
Maximum Motor Power 20 HP
Temperature Range -40 to 600°F
Maximum Case Working Pressure 275 psi
Hydrotest Pressure 425 psi
Maximum Viscosity 200 csT
Motor Details Industry standard
Solids Range Maximum of 5% w/w up to 150 microns
Mounting Configuration Close and long coupled
Dimensional Standards ASME B73.3 / ISO 2858
Number of Available Hydraulics 10
Available Flanges ANSI 150lb/300lb RF | DIN2543 PN16 / DIN2544 PN40

UK 50 Hz

Heads to 41 m
Flows to 71 m³/hr
Maximum Motor Power 11 kW
Temperature Range -40 to 315°C
Maximum Case Working Pressure 18.9 Bar
Hydrotest Pressure 29.3 Bar
Maximum Viscosity 200 csT
Motor Details Industry standard
Solids Range Maximum of 5% w/w up to 150 microns
Mounting Configuration Close and long coupled
Dimensional Standards ASME B73.3 / ISO 2858
Number of Available Hydraulics 10
Available Flanges ANSI 150lb/300lb RF | DIN2543 PN16 / DIN2544 PN40

Standard materials of construction

  • A-8 and S-5 with silicon carbide internal bearings and spiral wound gaskets.

Other material options are available on request

  • Duplex Stainless Steel
  • Alloy 20 and Alloy C276
  • Various flange options are available as standard


Installed in the Motor Control Centre (MCC), a power monitor measures the power required to operate the pump.  By setting High and Low trip points, the power monitor is the perfect solution for protecting your pump from:

  • Dry running
  • Low flow operation
  • High flow operation
  • Severe cavitation
  • Magnet decoupling

A gas detection system designed to bolster the reliability and eliminate dry-running of HMD Kontro API-685 sealless magnetic drive pumps. This warning system mitigates costly pump component replacements and downtime that can result from dry running, entrainment or cavitation.

The VapourView® is powered by an industry standard 24 VDC supply and returns a 4-20 mA signal suitable for monitoring using a distributed control system (DCS). It features both light emitting diode (LED) and liquid crystal displays (LCD) to provide information on process fluid conditions inside of the pump to process engineers.

The VapourView® has been performance tested and is compliant with explosive atmosphere and electro-magnetic compatibility requirements. The VapourView® non-intrusive gas-in-liquid detector can be easily retrofitted into any HMD Kontro API 685 pump and will operate at temperatures between -40 and +350 degrees F (-40 and +180 degrees C).

All HMD Kontro pumps, as standard, can handle up to 5% hard solids and 150 microns diameter. The solid size can increase to 8% solids and 250 microns by fitting a self-cleaning in line filter.

For larger solids, HMD Kontro can provide pumps with a clean flush system or filter built into the flush pipework.