An electric water pump is a motor-driven machine that converts electrical energy into hydraulic energy: it lifts water out of a source, pushes it through a pipeline, or raises the pressure inside a water system. The same basic job is performed by very different designs, which is why a homeowner looking for a water pump for house use and an irrigation contractor sizing an agriculture water pump rarely need the same product.

This guide is written for buyers at the awareness and research stage. It explains what an electric water pump is, why so many purchases go wrong, which pump families exist (surface pumps, centrifugal pumps, JET pumps, self-priming pumps, submersible pumps, sewage pumps and borehole pumps), how to read the parameters that decide whether an installation works, and how to evaluate an electric water pump manufacturer once the pump type has been chosen.

Practical examples are taken from the CHIMP PUMPS catalogue. CHIMP is the brand of Zhejiang Qiantao Pumps Co., Ltd., a water pump manufacturer established in 1998 with headquarters and manufacturing in Wenling City, Zhejiang Province, China.

Why electric water pump selection goes wrong

Most failed pump purchases are not caused by a bad product. They are caused by a mismatch between the pump and the actual duty. Four misunderstandings account for most of them.

• Surface and submersible pumps are confused. A surface pump works above the water level and relies on suction lift. The QB vortex pump, for example, has a maximum suction lift of 8 m. If the water level is deeper than that, no amount of extra power solves the problem — a submersible pump has to be lowered into the water instead.
• Head and flow are treated as a single number. Flow (L/min or m³/h) describes how much water moves; head (m) describes the pressure or lifting height the pump can deliver. Every model has a curve, and asking for “a strong pump” instead of a duty point is the fastest route to a pump that either under-performs or runs far outside its best efficiency area.
• The liquid is not matched to the pump. Clean-water pumps and wastewater pumps are built differently. The QDX clean water submersible pump is intended for water drainage, water transfer and irrigation, while the V and WQ submersible sewage pumps are built for wastewater, with the V model accepting liquid pH values from 4 to 10 and the WQ model offering outlet sizes from 2" to 6".
• Electrical conditions are checked last. Single-phase or three-phase supply, voltage and frequency decide which motor version can be installed. Several CHIMP ranges explicitly offer both single-phase and three-phase options, and some models offer alternative voltage and 60 Hz configurations on request.

The electric water pump market at a glance

Two figures explain why buyers see so many options. The global water pump market was estimated at USD 76.1 billion in 2026, and centrifugal pumps accounted for 66.4% of global water pump market revenue in 2025 (Grand View Research / Business Research Insights). China's centrifugal pump exports under HS code 841370 reached USD 5.3 billion in 2024, according to China customs data (GACC).

The practical consequence is that supply is deep. Electric water pumps for household, agricultural, commercial and industrial use are produced by a large number of manufacturers, and the category label on a listing page says very little about what will actually be delivered. What separates suppliers is narrower and more factual: whether the type and duty point match the application, whether model-level specifications and curves exist, whether certification scope can be documented for the exact model, and whether spare parts and technical support continue after the container has shipped. Buyers who compare on those four points avoid most after-sales problems.

The main electric water pump types and what each one does

Electric water pumps are usually divided into two structural groups — surface pumps, installed above the water source, and submersible pumps, installed inside it — and then subdivided by hydraulic design. The families below cover most residential, agricultural and light industrial requirements.

Centrifugal pumps (CPM, MHF)

The CPM series is a centrifugal pump for transferring clean water and liquids with similar physical and chemical properties, available from 0.5 HP to 2 HP, with maximum flow from 80 to 140 L/min, maximum head from 20 to 40 m and maximum suction of 8 m. It is used for industrial and urban water supply, building water supply, fire fighting, garden irrigation, long-distance water transfer, heating and air-conditioning systems, water circulation and hot or cold water boosting.

The MHF series is a horizontal centrifugal water pump with motor power from 0.75 to 3.0 kW (1.0 to 4.0 HP), flow rates from 350 to 900 L/min, maximum head from 12 to 18 m, maximum suction lift of 8 m and inlet/outlet sizes from 2" × 2" to 4" × 4". It is used for domestic water supply, urban water supply systems, industrial water transfer, pressure boosting in high-rise buildings, fire-fighting systems, long-distance water transfer, heating and ventilation, air-conditioning circulation, hot-water circulation and agricultural irrigation.

Vortex and peripheral surface pumps

The QB is an electric water pump in the vortex (peripheral) family and is classified as a surface pump, with a power range of 0.37–0.75 kW (0.5–1 HP), flow from 35 to 60 L/min, head from 35 to 50 m, maximum suction of 8 m, and a cast iron body with brass impeller and stainless steel shaft. Its intended uses include small living water supply systems, automatic water sprinkler systems and small air-conditioner systems — duties where low flow and relatively high pressure are required.

Self-priming and JET pumps

Self-priming pumps do not need to be filled manually after installation because they can draw water from the suction line themselves. The QT self-priming pump covers 0.5–1 HP, 2–3 m³/h and 30–40 m head from a maximum suction of 8 m. The WZB intelligent self-priming pump is a wider range: 0.17–2 HP, maximum flow 25–100 L/min, maximum head 25–60 m, liquid temperature up to 80 °C, with automatic start and stop, dry-run protection, anti-jamming protection and built-in thermal protection.

JET pumps use a Venturi nozzle and diffuser to reach higher heads. The Jet model spans 0.6–2 HP with 30–80 L/min flow, 36–65 m head and 9 m maximum suction; the STP self-priming jet pump covers 0.5–1.5 HP with 40–60 L/min and 30–55 m head, also from 9 m suction. Both are typically applied to water supply from wells, household water supply, garden irrigation and pressure boosting.

Automatic booster pumps and pump stations

Where the problem is unstable tap pressure rather than a missing water source, the practical answer is often an automatic water pressure pump for home. The AUJET is a jet pump classified as an automatic pump station: pump, pressure tank, pressure switch and pressure gauge are combined in one set, with 0.5–1.5 HP, maximum flow of 40–60 L/min, maximum head of 30–55 m and up to 9 m suction lift. Tank options of 19 L, 24 L and 50 L are available for different demand levels, and most main components are already assembled on delivery, which shortens installation time.

Multistage centrifugal booster pumps (HM/VM)

The HVM vertical multistage centrifugal pump, model designation HM/VM, is designed for clean water transfer, pressure boosting and water treatment. Rated power is 0.37–3.0 kW, rated flow 2–12 m³/h, rated head 17–81 m, motor speed 3000 rpm, with power supply options of 220 V/50 Hz or 380 V/50 Hz, maximum working pressure of 1.0 MPa, maximum liquid temperature of 70 °C and maximum ambient temperature of 50 °C. It is used in building and high-rise water supply, main pipeline pressure boosting, industrial process water systems, cleaning and high-pressure flushing systems, fire protection, cooling and air-conditioning, boiler feed water, reverse osmosis, ultrafiltration, distillation and swimming pool water treatment.

Clean-water submersible pumps (QDX)

The QDX is a vertical submersible water pump for clean water service, designed to work directly underwater. Power covers 0.25–2.2 kW (0.34–3 HP), flow 1.5–65 m³/h, head 7–32 m, maximum immersion depth 5 m, with an 8 m cable, IPX8 protection, water cooling, a copper winding motor with built-in thermal protector and a double sealing structure that separates the motor from the pumped water. Applications include household water drainage, farmland irrigation, construction sites, industrial and mining sites, water tanks and water collection systems, ship and marine water drainage and general water transfer.

Borehole and deep-well submersible pumps (SDM/SP/SR/SD/ST/SK/QGD)

For groundwater extraction, the borehole pump series covers 0.25 HP to 25 HP in stainless steel, with a design immersion depth of up to 100 m. Rewindable or screen-type motors are available in both single-phase and three-phase versions, and options on request include start control boxes, digital auto-control boxes, special mechanical seals and alternative voltage or 60 Hz configurations. Typical duties are water supply from wells and reservoirs for domestic, civil, industrial, garden and irrigation use.

Sewage and wastewater submersible pumps (V, WQ)

The V series submersible sewage pump covers 0.25–3 HP with maximum flow of 8–40 m³/h, maximum head of 7–17 m, 5 m immersion depth, outlet sizes from ½" to 3", liquid pH tolerance of 4–10 and IPX8 protection. The heavier WQ series covers 1–25 HP, flow from 6 to 180 m³/h, head from 8 to 75 m, outlet sizes from 2" to 6", with cast iron body, impeller and motor housing, copper winding motor and IPX8 protection. Both are used in construction sites, factories, commercial buildings, municipal projects, tunnels and residential drainage systems.

Step-by-step: how to match an electric water pump to a job

1. Identify the water source and its depth. A tank or shallow well within 8 m of the pump inlet can be served by a surface pump; deeper wells require a submersible or borehole pump.
2. Establish the required flow. Add up simultaneous demand — taps, showers, irrigation lines, filling operations — and convert it to L/min or m³/h rather than estimating by feel.
3. Establish the required head. Total head includes the vertical lift, pipe friction losses and the pressure required at the outlet. Compare the result with the model's performance curve, not only with the maximum head printed on the label.
4. Confirm the duty type. Household booster duty is intermittent; drainage and irrigation duty can be continuous. Operating conditions for these ranges state that head and flow must be matched per model and that correct motor protection is required for the application.
5. Match the liquid. Clean water, slightly dirty water, wastewater and chemically active liquids need different pumps and different materials. Temperature limits vary by family — 35 °C or 60 °C for the QB vortex pump, up to 80 °C for the WZB, 40 °C for the MHF and 70 °C for the HVM.
6. Confirm the electrical supply. Decide between single-phase and three-phase, then check voltage and frequency. Where the grid is unstable, note the voltage tolerance of the chosen model.
7. Verify documentation before ordering. Ask for the model datasheet, the performance curve, the nameplate parameters, the material list and the certification documents that apply to the exact model.

Application scenarios and which pump family fits

Household water supply and pressure boosting

A home with municipal supply but low pressure at the taps typically needs an automatic solution: the AUJET automatic pump station combines pump, tank, switch and gauge in one set, while the WZB intelligent self-priming pump provides automatic start and stop with dry-run and anti-jamming protection. Where the house draws from its own well, the STP or Jet self-priming jet pump, or a QDX submersible pump, is usually the appropriate starting point.

Wells, boreholes and groundwater extraction

Deep groundwater requires a submersible borehole pump from the SDM/SP/SR/SD/ST/SK/QGD range, which covers 0.25–25 HP and up to 100 m immersion depth. The critical selection inputs are the static and dynamic water level, the borehole diameter and the required flow at the tank or pressure vessel.

Agriculture and garden irrigation

Irrigation pumps usually run for long periods and must hold flow across the whole irrigation layout. The MHF centrifugal pump covers 350–900 L/min with heads of 12–18 m for surface irrigation systems, the CPM series handles 80–140 L/min up to 40 m for smaller plots and garden lines, and borehole or QDX submersible pumps suit field irrigation fed from wells or reservoirs.

Wastewater, drainage and construction

Dirty water and sewage need a pump designed for non-clean media. The V series covers small municipal and residential drainage up to 40 m³/h, while the WQ series reaches 180 m³/h and 75 m head for industrial, mining and construction drainage, tunnels and heavy-duty sites.

Commercial and industrial water systems

Buildings and plants combine transfer, boosting and treatment duties. The HVM multistage pump supports high-rise supply, pipeline boosting, reverse osmosis and fire protection, while the MHF and CPM series handle general transfer, HVAC circulation and hot-water circulation.

Comparison table: electric water pump families at a glance

Flow and head values are range-level figures taken from the corresponding product specifications. The duty point of a specific model must be read from its performance curve, because flow falls as head rises.

How to evaluate an electric water pump manufacturer

Once the pump type is settled, the search shifts from “what” to “who” — which is why the next query is usually a list of electric water pump manufacturers. Five checks separate a supplier that can support a programme from one that can only fill a first order.

• Legal entity and factory location. Confirm the registered company name and the production address, not just a brand name and a marketplace storefront.
• Product breadth against your portfolio. A supplier covering several families can consolidate shipments and spare parts. CHIMP's range includes surface pumps, centrifugal pumps, JET pumps, self-priming pumps, multistage pumps, submersible pumps, sewage pumps, borehole pumps, swimming pool pumps and electric motors, with centrifugal, JET and self-priming pumps as core specialities, and it also lists OEM water pumps.
• Engineering and production capability. Zhejiang Qiantao Pumps Co., Ltd. operates from a 140,000 m² manufacturing facility with approximately 630 staff and a research and development team of 75 engineers working within the CHIMP Technology Center, which carries out product innovation and technical improvement.
• Certification and documentation. The company states that its products and management systems have obtained CE, ISO 9001, CB, SA8000:2014, ISO 14001 and ISO 45001 certifications. Certification should always be confirmed against the exact model and the destination market before the order is placed.
• OEM, MOQ, sample and after-sales terms. These determine how quickly a buyer can test and scale. CHIMP supports OEM logo and packaging customization, states an MOQ of 50 units per model, provides samples with test reports, and offers a 12-month warranty on copper-wire motor pumps with replacement parts plus maintenance video guidance and technical support.

Export coverage is a useful indicator of whether a manufacturer has already adapted to different markets. The company reports that exports account for around 70% of its business, with markets in Asia, Europe, the Middle East, South America and Africa — regions where voltage, frequency, plug standards and certification requirements differ considerably. Buyers can review the company's own website at chinaqiantao.cn for current ranges and contact details.

FAQ: electric water pumps and manufacturers

Are CHIMP electric water pumps certified for export markets?

The company states that its products and management systems have obtained CE, ISO 9001, CB, SA8000:2014, ISO 14001 and ISO 45001 certifications, and that its factory is ISO 9001 certified with products complying with CE and RoHS standards. Because certification can apply at factory level, product level or model level, importers should confirm the certificate scope, number and issuing body against the exact pump model being ordered, and check the requirement that applies in the destination market before the order is placed.

Can CHIMP customize electric water pumps for OEM orders?

Yes. CHIMP supports OEM logo and packaging customization: the buyer's logo can be applied to the carton and the pump nameplate, and buyers may also supply their own packaging design. For orders above 500 units, customized colour cartons are available free of charge. Configuration-level customization is discussed per model and can cover items such as impeller material (stainless steel, brass or PP), alternative voltage or 60 Hz options, start control boxes and digital auto-control boxes, depending on the product family.

What is the minimum order quantity and how should a quotation be requested?

The stated MOQ is 50 units per model. Special requirements such as new moulds or customized configurations are discussed project by project, because tooling and component sourcing change the commercial terms. Quotations are easiest to compare when they are requested against a fixed configuration — model, power, flow, head, voltage, frequency, impeller material and outlet size — since most pump families are built in several variants with different performance.

Can I test a sample before placing a volume order?

Samples are available on request and are normally supplied together with test reports; sample shipments are usually ready within 7 days. Sample validation is the practical way to check flow, head, noise, starting behaviour and build quality against the datasheet, and it matters most for household booster pumps, irrigation pumps and borehole pumps, where the real duty point decides whether the installation performs as expected.

What warranty and after-sales support are provided, and how are orders shipped?

Copper-wire motor pumps carry a 12-month warranty. If a quality issue is caused by production or materials within the warranty period, the process is to supply replacement parts first, then provide step-by-step maintenance video guidance and technical support to reduce downtime. For shipping, FCL orders can be booked by the factory or coordinated through the buyer's own forwarder, while LCL shipments are arranged once the delivery address is provided. Buyers ready to move from research to evaluation can request the CHIMP factory introduction brochure or send a specification list to sales1@chimppumps.com for samples and a quotation.

Conclusion and next step

Electric water pumps are not interchangeable. The correct choice follows from the water source, the duty point, the liquid and the electrical supply — after which the pump family, and often the exact model, selects itself. For household pressure problems, an automatic booster station such as the AUJET or the WZB intelligent self-priming pump is usually the shortest path; for wells and boreholes, a submersible borehole pump from 0.25 HP to 25 HP covers most domestic, civil and irrigation duties; for dirty water, the V and WQ sewage ranges are designed for the job; and for buildings and treatment systems, the HVM multistage pump handles boosting and process water.

The second half of the decision is the supplier. Documented specifications, verifiable certification scope, OEM capability, a clear MOQ, samples with test reports and a defined warranty process are the factors that keep a pump programme running after the first container.