| 1 | End-Suction Centrifugal Pump | General water supply, irrigation, HVAC circulation, process utilities, and light industrial services. | Usually a single-stage pump with moderate flow and low-to-medium head. Best suited to clean or lightly contaminated liquids. | Simple layout, broad availability, easy maintenance, and generally lower initial cost. | Less suitable for very high heads, severe solids, or highly corrosive fluids. Suction conditions must be correctly designed. | Cast iron, ductile iron, stainless steel, or engineered alloys; mechanical seal or packed gland depending on the duty. | ISO 2858 dimensional conventions may apply; performance testing should follow ISO 9906 or an agreed equivalent. | Confirm duty-point flow and head, NPSH available versus NPSH required, impeller diameter, motor speed, efficiency, seal compatibility, and spare-part availability. |
| 2 | Horizontal Split-Case Pump | Municipal water, fire-water systems, cooling-water plants, large irrigation systems, and industrial circulation. | Commonly single-stage, double-suction designs for high flow and moderate head. Often used for continuous operation. | High flow capacity, good hydraulic efficiency, balanced radial loading, and convenient access to internal components without disturbing major pipework. | Larger footprint and higher weight than end-suction pumps. Installation alignment and foundation quality are important. | Cast iron, ductile iron, bronze, or stainless steel wetted parts; mechanical seals or packing. | ISO 9906 performance testing; fire-service applications may require local authority or project-specific certification. | Verify double-suction flow balance, allowable operating range, minimum flow, shaft and bearing design, coupling guard, vibration limits, and lifting or maintenance access. |
| 3 | Vertical Turbine Pump | Deep wells, raw-water intake, cooling-water intake, irrigation, and water transfer from reservoirs or sumps. | Vertical multistage construction with the pump bowl installed below the liquid level; suitable for substantial lifts and variable liquid levels. | Good for deep or submerged sources, reduced priming requirements, and flexible stage or bowl arrangements. | Requires careful column, shaft, and alignment design. Installation and maintenance may need substantial vertical clearance. | Cast iron, bronze, stainless steel, or corrosion-resistant alloys; enclosed or open line-shaft arrangements are selected by duty. | Hydraulic performance should be verified under ISO 9906 or an equivalent contractual test procedure. | Check well or sump diameter, submergence, minimum water level, column length, shaft lubrication method, corrosion allowance, motor thrust capacity, and installation tolerance. |
| 4 | Multistage Centrifugal Pump | Boiler feed, high-pressure water supply, reverse-osmosis pretreatment, pressure boosting, and condensate transfer. | Multiple impellers in series provide high head at comparatively moderate flow. Available in horizontal or vertical configurations. | Efficient way to achieve high discharge pressure, flexible stage selection, and compact hydraulic design for many high-head duties. | More components and seals than a single-stage pump; sensitive to dry running, abrasive solids, and improper pressure balancing. | Stainless steel, cast iron, duplex stainless steel, or other alloys; cartridge or component mechanical seals are common. | ISO 9906 performance testing; high-energy or petroleum applications may require additional project specifications. | Confirm pressure at every stage, axial-thrust arrangement, maximum casing pressure, minimum flow protection, seal plan, temperature range, and motor starting requirements. |
| 5 | Vertical Inline Pump | Building HVAC, chilled-water and hot-water circulation, district energy, and compact process skids. | Pump and motor are installed in line with the piping; commonly single-stage or multistage for low-to-medium flow and head. | Small footprint, reduced foundation work, and straightforward integration into pipe systems. | Pipework must support or correctly isolate the pump weight. Motor and seal access can be restricted in tight installations. | Cast iron, stainless steel, bronze, or composite components; mechanical seals selected for water temperature and chemistry. | Hydraulic testing to ISO 9906 or an equivalent standard; electrical equipment should match the applicable local requirements. | Check pipe loads, flange or connection dimensions, motor cooling, minimum clearance, variable-speed compatibility, system pressure, and water-treatment chemistry. |
| 6 | Self-Priming Centrifugal Pump | Drainage, wastewater transfer, construction dewatering, tanker unloading, and applications with intermittent air entrainment. | Designed to remove air from the suction line after the casing is initially filled; generally suitable for low-to-medium lift duties. | Reduces the need for a separate vacuum-priming system and can tolerate certain amounts of air in the suction line. | Still requires correct initial filling and suction-pipe design. Priming time increases with lift, air leakage, or unsuitable liquid conditions. | Cast iron, ductile iron, stainless steel, or abrasion-resistant alloys; seal selection depends on solids and liquid chemistry. | Performance should be validated for both pumping and priming conditions using an agreed test method. | Verify maximum suction lift, priming time, casing fill volume, solids passage, check-valve arrangement, suction-pipe airtightness, and dry-run protection. |
| 7 | Slurry or Abrasive-Service Pump | Mining, mineral processing, dredging, ash handling, sand transfer, and other services containing abrasive solids. | Heavy-duty centrifugal design with lower speeds or specialized hydraulics to manage high solids concentration and wear. | Replaceable wear components, robust casing construction, and hydraulic designs intended for abrasive or dense mixtures. | Wear rate can be high, efficiency may be lower than with clean-water service, and the actual slurry properties strongly affect selection. | High-chrome white iron, rubber-lined components, hardened steels, or corrosion-resistant alloys; packing or mechanical seals. | Slurry testing should use agreed solids, particle-size, density, and wear conditions; ISO 9906 may be used for hydraulic performance where applicable. | Provide solids concentration, particle-size distribution, hardness, liquid density, pH, temperature, settling behavior, required wear life, and expected operating hours. |
| 8 | Magnetic-Drive Sealless Pump | Corrosive, toxic, volatile, or high-value liquids where external leakage must be minimized. | Usually compact, low-to-medium flow service; torque is transmitted through a magnetic coupling without a conventional dynamic shaft seal. | Very low atmospheric leakage potential, no external mechanical seal, and reduced seal-maintenance requirements. | Cannot normally tolerate dry running; internal bearings and containment components may be sensitive to solids, temperature, and viscosity. | Fluoropolymers, ceramics, carbon, stainless steel, alloy steel, or other chemically compatible materials. | Material compatibility, pressure containment, electrical safety, and leak-testing requirements should be defined in the purchase specification. | Check dry-run protection, minimum flow, liquid lubricity, viscosity, vapor pressure, magnetic coupling temperature limits, containment-shell material, and allowable pressure. |
| 9 | Canned-Motor Centrifugal Pump | Hazardous, toxic, radioactive, or highly volatile fluids requiring a hermetically sealed pumping package. | The motor and pump are integrated in a sealed unit; often used for clean liquids and controlled process conditions. | Hermetic construction, no conventional shaft seal to the atmosphere, and low external leakage risk. | Heat removal, bearing lubrication, motor protection, and dry-running prevention require careful system design. | Stainless steel, nickel alloys, fluoropolymers, ceramics, and carbon-based bearing materials selected for the fluid. | Electrical area classification, pressure-boundary requirements, motor protection, and project-specific hazardous-service standards must be confirmed. | Verify containment pressure, motor cooling, liquid temperature, vapor pressure, bearing material, dead-head tolerance, restart behavior, and hazardous-area compliance. |
| 10 | Non-Clog or Vortex Wastewater Pump | Municipal wastewater, sewage lift stations, industrial effluent, stormwater, and liquids containing fibrous solids. | Designed for solids passage and reduced blockage risk; available as dry-installed or submersible equipment. | Better tolerance of rags, fibers, and suspended solids than standard clean-water impellers; suitable for intermittent wastewater duty. | Hydraulic efficiency may be lower than a closed clean-water impeller. Solids, grit, and corrosion can still cause wear or blockage. | Cast iron, stainless steel, duplex alloys, elastomers, and abrasion-resistant wear parts; mechanical seals are typically used. | Performance testing should follow ISO 9906 or an agreed equivalent; electrical ingress protection and local wastewater requirements should be specified. | Check free-passage diameter, solids type and size, ragging risk, pump submergence, motor cooling, seal leakage monitoring, guide-rail system, odor control, and lifting arrangements. |