End Suction Pump

Introduction of End Suction Pump

The GISO / GIS series end suction pump is a flexible and highly efficient foot-mounted single-stage end-suction pump with back pull-out design. This pump has been designed with latest CAD (Computer Aided Design) and CFD (Computational Fluid Dynamics), and is manufactured with the best engineering practices worldwide. This highly efficient and flexible design makes the GISO / GIS series end suction pump ideal for wide range of pumping applications, from water supply and irrigation to mining and building services. 

Design Configurations

The series offers two distinct design versions to match your installation needs:

• GISO Series (Long Coupled):A frame-mounted design ideal for heavy-duty applications. It is suitable for belt-driven motors or flexible coupling connections, providing robust performance for demanding environments.

• GIS Series (Close Coupled):A compact stub-shaft design engineered for direct attachment to 2 or 4-pole IEC frame motors. This space-saving configuration is perfect for plant rooms with limited footprint.

• Flexible Mounting: Standard units feature a vertical centerline discharge. However, the versatile casing allows for horizontal discharge or even vertical mounting of the bearing housing to suit complex piping layouts.

Design Versions

The GISO / GIS end suction pump comes in two designs: “GISO” long coupled (frame mount) series is suitable for belt driven motors and “GIS” close coupled (stub shaft) 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 

Our end suction pump is 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). 

Operating Conditions

Flowrate: Max. 2100 m3/hr      

Pump Head: Max. 160 meters

Liquid Temp: -15 ℃  to +120 ℃ (Standard Version)

Max Working Pressure: PN16 and PN25 (optional)

Features

• Designed in accordance with ISO 2858 standard

• Variety of configuration options: compact, block and frame-mounted designs

• Extensive material options for casing and impeller, from bronze to super-duplex

• Easy maintenance and spare parts management (modular construction, back pull-out design)

• Improved reliability and extended pump life (robust construction, reduced stress on bearings)

• Standard wear rings which reduce wear and lower maintenance costs

• Reduced life cycle cost and optimized total ownership cost

Benefits

• Back Pull-Out Design: Allows the rotating element (motor, bracket, and impeller) to be removed for maintenance without dismantling the pump casing or suction/discharge piping, significantly reducing downtime.

• Modular Construction: Designed for easy spare parts management and high interchangeability, simplifying inventory for facility managers.

• Extended Service Life: Robust construction reduces axial stress on bearings. The inclusion of standard wear rings protects the casing and impeller from abrasion, lowering long-term maintenance costs.

• Material Versatility: Extensive material options available—from Bronze to Super-Duplex Stainless Steel—allowing the pump to handle various chemical compositions safely.

• Global Compliance: Fully designed in accordance with ISO 2858 standards, ensuring dimensional compatibility for international projects.

The GISO / GIS series end suction pump 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 end suction 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)