Industrial Pump Selection Guide

Choose an industrial pump by the liquid or medium, required flow, head or pressure, temperature, viscosity, material compatibility and installation conditions. These inputs define a duty point and a suitable pump configuration; a pump name or motor rating alone does not.

What information is needed before selection?

Prepare the process conditions before comparing models. Give normal, minimum and maximum requirements where they differ, with a unit and operating condition for each value.

Liquid / medium: Name, composition and concentration; include density where known. These affect compatibility and hydraulic assessment.
Flow rate: Volume per unit time at the required operating point, plus any changing demand or batch transfer time.
Head or pressure: Elevation change, suction and discharge pressures, and pipe or equipment losses at the stated flow.
Temperature: Normal and extreme process temperatures, including startup and cleaning conditions.
Viscosity: The value and unit at operating temperature; note whether the liquid changes behavior with shear or temperature.
Solids: Concentration, particle size and whether particles are abrasive or fibrous, when relevant.
Materials: Required wetted materials, elastomers and seal restrictions; identify any process specification.
Suction conditions: Tank level or inlet pressure, suction lift if present, inlet pipe size and length, and available NPSH if known.
Power supply: Voltage, frequency, phase and available air supply for pneumatic equipment.
Installation: Space, orientation, indoor or outdoor use, duty cycle and any specified area classification.

Which pump type should you shortlist?

Shortlist a pump family by the medium and duty, then check the actual configuration. These categories overlap: “chemical” describes a service, while “centrifugal” describes a pumping principle. Vacuum pumps handle gases and vapors rather than the liquid-transfer duty described by most other rows.

Pump categories: common duties and selection questions
Pump category	General use	Selection factors
Centrifugal Pump	Liquid circulation and transfer.	Flow and head together, viscosity, suction conditions and impeller suitability for solids.
Chemical Pump	Transfer and circulation of process chemicals.	Composition, concentration, temperature, all wetted materials and sealing arrangement.
Gear Pump	Oil and other suitable viscous-liquid transfer.	Viscosity at temperature, lubricity, solids restrictions and differential pressure.
Screw Pump	Transfer of viscous liquids and process fluids in suitable screw configurations.	Screw design, solids, shear behavior, inlet conditions and pressure requirement.
Rotary Lobe Pump	Transfer of viscous or shear-sensitive liquids in suitable configurations.	Viscosity, solids size, clearances, seals and cleaning requirements.
Multistage Pump	Liquid services requiring increased head through multiple stages.	Duty point, liquid condition, stage configuration and inlet conditions.
Self-Priming Pump	Liquid transfer where air must be cleared from the suction line during priming.	Actual suction lift, airtight inlet pipe, priming procedure and fluid properties.
Diaphragm Pump	Liquid transfer with electrically or pneumatically driven diaphragms.	Diaphragm and valve materials, solids, flow, pressure and available drive supply.
Magnetic Pump	Liquid transfer using a magnetic drive where that arrangement suits the process.	Wetted materials, containment arrangement, solids, viscosity and operating restrictions.
Vacuum Pump	Removal of gas or vapor to establish or maintain a vacuum.	Absolute operating pressure, gas load, effective pumping capacity and vapor conditions.
LPG Gas Pump	Transfer of liquefied petroleum gas with an appropriate dedicated configuration.	Liquid supply conditions, vapor formation, pressure, temperature and project requirements.

How do you move from process data to a model?

Use the same operating basis through all eight steps. A shortlist becomes a model selection only after the required flow, pressure and fluid conditions have been checked together.

Define the medium

Record composition, concentration, solids and the process task. Separate liquid transfer from gas or vapor evacuation.
Determine flow

Use the process demand or transfer volume and available time. State the operating range instead of choosing the largest catalog number.
Determine head / pressure

Account for elevation, vessel pressure differences and losses at the required flow. Head and pressure are related through fluid density; do not treat their units as interchangeable.
Check temperature / viscosity

Use properties at operating conditions and identify startup extremes. Viscosity affects flow resistance and the suitability of the pumping principle.
Check materials

Review every wetted component, including seals and elastomers, against the actual medium and temperature.
Review installation / suction

Describe the inlet supply, suction line and liquid level range. For centrifugal duties, have available and required NPSH checked for the proposed operating point.
Shortlist the pump type

Compare the relevant categories above and read the published product information. Similar names do not establish equivalent configurations.
Request model confirmation

Send the complete duty and installation conditions. Ask for confirmation of the model, configuration and performance at that duty.

Which selection mistakes should buyers avoid?

Avoid comparing isolated catalog values without their operating conditions. A published family range is a starting point for discussion, not evidence that one model meets every extreme simultaneously.

Selecting by pump name alone: a series name does not define materials, seals, drive or duty point.
Ignoring compatibility: a hydraulically suitable pump can still have unsuitable wetted materials.
Confusing head and pressure: state the fluid density and the pressure reference before any conversion.
Ignoring viscosity: provide the operating and startup values rather than assuming water-like behavior.
Omitting suction conditions: inlet limitations cannot be resolved from discharge requirements alone.

Existing HENVO product pages

These existing HENVO product pages illustrate different categories to investigate. Read their published parameters, then confirm a model against your own duty; they are not interchangeable recommendations.

ISG Series Centrifugal Water PumpCentrifugal Pump
KCB Series Gear Oil Transfer PumpGear Pump
FBAFB Chemical Centrifugal PumpChemical Pump

Buyer questions

Use these answers to check the information in your selection request before asking for a model recommendation.

What information is needed to select an industrial pump?

Provide the medium, required flow, head or pressure, temperature, viscosity, solids if present, material requirements, suction arrangement, power supply and installation conditions. Include units and operating ranges.

How do I determine the required flow rate?

Start with process demand. For a transfer task, relate the volume to the allowed transfer time; for continuous service, provide normal and peak demand. State the units and conditions rather than selecting by the largest published flow.

What is the difference between head and pressure?

Head expresses energy per unit weight of fluid, commonly as a length of fluid column. Pressure is force per unit area. Their relationship depends on fluid density, so metres and pressure units cannot simply be substituted.

Why does viscosity matter?

Viscosity affects flow resistance and pump behavior. Provide the viscosity at the operating temperature and note startup conditions so the pumping principle and configuration can be assessed.

Why is material compatibility important?

The liquid contacts more than the casing. Impellers or pumping elements, seals and elastomers must also be assessed against the medium, concentration and temperature. A material name alone does not confirm compatibility.

Can I select a model from a published parameter range alone?

A range helps build a shortlist, but it does not confirm simultaneous performance at your duty point. Request confirmation of the model, flow, head or pressure, materials and installation conditions together.