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Goulds ISO End Suction Pumps

Single stage end suction pump

Goulds Water Technology is renowned for manufacturing the highest quality pumping equipment utilizing the best engineering practices available worldwide. The GISO / GIS series back pull out, foot mounted centrifugal is no exception. The single stage end suction pump has been designed with latest CAD (Computer Aided Design) and CFD (Computational Fluid Dynamics) and is accordance with the international standard ISO2858.  This highly efficient and flexible design makes the GISO / GIS series pump ideal for wide range of pumping applications, from water supply and irrigation to mining and building services.

Design Versions

The pump comes in two designs: “GISO” frame mount‑ series is suitable for belt motors and “GIS” close coupled series is suitable for direct attachment to 2 or 4 pole IEC frame motors. The standard horizontal configuration units have a vertical centerline discharge; however these models can also be mounted in a variety of different positions including horizontal discharge, with or without vertical mounting of the pump bearing housing.

Pumped Liquid

Designed for non-combustible, low viscosity liquids, free of solids, abrasive materials and fibres. Various liquid chemical compositions are capable of being pumped through the use of a variety of construction materials and seal options (Refer to materials listed below).


  • Delivery: up to 900m3/h
  • Head: up to 160m
  • Power supply: three-phase and single-phase 50 and 60 Hz
  • Power: 3kW to 90kW
  • Maximum operating pressure: 16bar
  • Temperature of pumped liquid: -15°C to 140°C (with seal upgrade)
  • Insulation class: 155 (F)
  • Protection: IP55
  • Open impeller pumps solids: Not recommended
  • Liquids with suspended solids: Not recommended


  • Pump body: Cast Iron
  • Impeller: Stainless
  • Shaft: Stainless
  • Wear rings: Stainless
  • Other material options available on request

 The GISO / GIS series comes with cast iron casing wet end, SS304 impeller and wear rings and SS420 shaft as standard. In order to suit a wider range of applications, the GISO / GIS series of pump casing are also available in the following materials:

  •  EN-GJL-250 (Cast Iron)
  •  EN-GJS-450-10 (Ductile Iron)
  •  EN 1.4301 / AISI 304 (Stainless Steel 304)
  •  EN 1.4401 / AISI 316 (Stainless Steel 316)
  •  EN 1.4462 / UNS S32205 (Duplex 2205)

Market Sectors:

  • Industrial
  • Commercial
  • Agriculture
  • Municipal
  • Mining
  • Building services


  • Water distribution and supply
  • Irrigation
  • Transfer
  • Water boosting
  • Refrigeration and airconditioning applications
  • Mechanical services
  • Fire services


  • GIS

Download: Goulds ISO Product Brochure