Vertical multistage tank suspended pumps – API 610 & ISO for safe tank pumping

A VS1 pump hangs from the indoor crane. Next to it stands a metal scaffold. The indoor roof and lamps can be seen in the background.
Front view of a GLVX vertical tank suspension pump placed on a wooden pallet.
A GLV (VS1, API 610 pump) is suspended from the overhead crane. Below the vertical pump, there is an open assembly pit, which is enclosed by yellow railings for safety. In the background, a high-bay warehouse is visible.

The vertical tank-mounted pumps from Apollo Gößnitz are centrifugal pumps in which the hydraulic part, consisting of the impeller, housing, and stages, is suspended in the medium on a vertical column under a support plate. The drive motor, on the other hand, is mounted above and away from the medium. This design enables direct pumping from tanks, sump basins or containers, minimising the risk of dry running and eliminating the need for additional installation space.

Standard ISO tank suspension pumps are manufactured in accordance with ISO standards, are cost-effective, and are suitable for less critical media. The API 610 VS1 version is a vertically suspended sectional pump designed for demanding applications. It meets strict standards for materials, bearings, shaft rigidity and pressure resistance, making it ideal for flammable, corrosive or abrasive media.

Vertical multistage centrifugal pumps can also be supplied as tank suspension pumps for use in potentially explosive areas (Zone 1). Equipped with special safety technology, they are suitable for pumping explosive and toxic media in locations such as oil and gas storage facilities, refineries, and chemical plants.

Typical areas of application include the storage of crude oil and products in refineries, offshore plants, and the petrochemical, chemical, and general industries, as well as water treatment processes. VS1 pumps combine a vertical tank-mounted design with a modular, standard-compliant construction to enable safe operation under high reliability, temperature and pressure requirements.

Apollo vertical tank suspended pumps

3D view of a vertical, multi-stage submersible pump, an HPV pump from Apollo Gößnitz.

HPV/HPVX (VS1)

HPV/HPVX (VS1) is a vertical high-pressure submersible pump acc. to API 610. Ideal for critical industrial applications requiring high performance.

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Section of a horizontal tank suspension pump from Apollo, type GLV.

GLV/GMV/KMV

The GLV/GMV/KMV is a multistage vertical ring-section centrifugal pump with closed impellers for wet installation, ideal for use in tank farms.

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Advantages of vertical submersible pumps

Tank installation pump for areas with explosion hazard during assembly at Apollo, with a view of the pump casing and foot valve.
  • API 610 VS1: robust modular design, standard-compliant materials and shaft bearings
  • ISO design: economically optimized, standard materials
  • minimal footprint, easy integration into tanks and sump basins
  • high operational reliability and customer-specific design
  • easy maintenance thanks to modular and accessible design
  • standard-compliant VS1 design for safety-critical applications

Typical areas of application

  • Tank facilities in refineries, power generation plants, and oil/product storage facilities
  • Liquefied gas applications
  • Chemical industry and process engineering
  • Condensate pumping
  • Pumping of industrial and drinking water from containers
  • Process and storage tanks, cooling water pumping stations

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