CHIMP Pumps electric water pump range — surface, centrifugal, jet, self-priming, submersible and borehole models for household, agricultural, commercial and industrial water systems.

An electric water pump is a motor-driven machine that converts electrical energy into hydraulic energy so that water can be lifted from a source, transferred through a pipeline, boosted to a usable pressure, or removed from a building or site. The term describes the drive method, not the duty: under the same two words sit surface pumps, vortex pumps, self-priming pumps, jet pumps, centrifugal pumps, multistage pumps, submersible clean-water pumps, sewage pumps and deep-well borehole pumps.

This guide is written for importers, distributors, installers and buyers who are at the discovery stage of an electric water pump project. It explains what the main pump families do, how to size a pump against a real installation, where each type is normally used, and what to verify when comparing electric water pump manufacturers.

Problem Definition: Why Choosing an Electric Water Pump Is Harder Than It Looks

The difficulty starts with the search term itself. Buyers searching for an electric water pump are usually shown products of very different construction, and two pumps listed at the same motor power can behave completely differently once installed. A 0.75 kW vortex surface pump that draws water from a tank and a 0.75 kW sewage pump that operates submerged are not interchangeable, even though the catalogue language looks similar.

Three technical misunderstandings cause most of the problems in the field.

The first is head. Buyers often describe the requirement as “pressure” or “how high the building is”, while pump selection uses total head — the vertical lift plus pipe friction losses plus the pressure needed at the outlet. A pump chosen only on building height is frequently undersized once friction and outlet pressure are added.

The second is the difference between suction lift and immersion depth. A surface-mounted pump such as a jet or self-priming pump lifts water from a maximum suction depth, while a submersible pump is placed inside the water and works at an immersion depth instead. Confusing the two leads to pumps that never prime or motors that run dry.

The third is the liquid. Clean water, slightly dirty water and sewage require different impeller designs and different materials; liquid temperature, pH and particle content determine whether a given model can be used at all.

Industry Background: What the Global Electric Water Pump Market Looks Like

Water pumps are a large and stable industrial category. According to market research published by Grand View Research, the global water pump market is estimated at USD 76.1 billion in 2026, and centrifugal pumps accounted for 66.4% of global water pump market revenue in 2025. The dominance of centrifugal designs matters for buyers because it explains why so many catalogue models — including household boosters, multistage units and standard transfer pumps — are built around the same working principle.

On the supply side, China is a major exporting base. Data published by the General Administration of Customs China (GACC) shows that China’s centrifugal pump exports under HS code 841370 reached USD 5.3 billion in 2024. A significant share of that supply is produced in concentrated manufacturing clusters, and Wenling City in Zhejiang Province is one of them.

CHIMP Pumps is the brand name used by Zhejiang Qiantao Pumps Co., Ltd., an electric water pump manufacturer established in 1998 and based in Wenling City, Zhejiang Province, China. The company is a production-oriented enterprise whose main products include surface pumps, centrifugal pumps, JET pumps, self-priming pumps, multistage pumps, submersible pumps, sewage pumps, borehole pumps, swimming pool pumps and electric motors.

Its published production data describes a manufacturing facility covering 140,000 m², approximately 630 employees, an R&D team of 75 engineers, and an annual production capacity of 3,000,000 units. Around 70% of output is exported, with main markets in Asia, Europe, the Middle East, South America and Africa. For a buyer in the discovery stage, that combination — a broad product range plus an export-oriented production base — is what makes a supplier worth shortlisting, but it is not yet a qualification. Model-level specifications, test reports and certificates still have to be checked against the actual project.

Detailed Solution: The Main Types of Electric Water Pumps

Most electric water pump enquiries can be answered by placing the pump into one of the families below. Each family is defined by where it sits relative to the water — above the water level, inside the water, or inside a drilled well.

A home water pump sits at the start of the household water system, drawing from a tank, well or main and delivering water at a usable pressure.

1. Surface pumps and vortex pumps (QB series)

A surface pump is installed above the water source and lifts water through a suction pipe. The QB series is an electric water pump in the vortex pump category, with a power range of 0.37–0.75 kW (0.5–1 HP), flow of 35–60 L/min, head of 35–50 m and a maximum suction lift of 8 m. It uses a cast iron pump body and support, a copper-wound motor, a stainless steel shaft and — depending on the model — a brass impeller with a stainless steel anti-rust insert. It is intended for small living water supply, automatic sprinkler systems, small air-conditioning systems and supporting equipment. Motor protection is IPX4, insulation class B or F, and the maximum ambient temperature is +40 °C.

2. Self-priming pumps and jet pumps (QT, WZB, Jet, STP, AUJET)

Self-priming and jet pumps are the usual answer for households drawing water from a well, a cistern or a low-level tank, because they can lift water without manual priming. The QT self-priming pump covers 0.37–0.75 kW (0.5–1 HP), 2–3 m³/h and 30–40 m head with a maximum suction of 8 m, and handles particles up to 0.2 mm with a voltage tolerance of 0.9–1.1× rated voltage. The WZB intelligent self-priming pump is the automated option: 0.128–1.5 kW (0.17–2 HP), 25–100 L/min, 25–60 m head, liquid temperature 0–80 °C, liquid pH 6.5–8.5, with automatic start and stop, dry-run protection, anti-jamming protection and built-in thermal protection.

The Jet series is a self-priming jet pump with 0.45–1.5 kW (0.6–2 HP), 30–80 L/min and a maximum head of 65 m; the STP self-priming jet pump offers 0.37–1.1 kW (0.5–1.5 HP), 40–60 L/min and 30–55 m head. Both reach a maximum suction of 9 m, which is more than a standard surface pump. The AUJET goes one step further and is supplied as an automatic pump station: pump, pressure tank, pressure switch and pressure gauge combined in one set, with tank options of 19 L, 24 L and 50 L. It is designed for household water supply and pressure boosting, small buildings and apartments, and for appliances that need stable water pressure.

3. Centrifugal pumps (CPM, MHF, HM/VM)

Centrifugal pumps handle the largest share of water transfer duty. The CPM series is a centrifugal pump with 0.37–1.5 kW (0.5–2 HP), maximum flow of 80–140 L/min, maximum head of 20–40 m and 8 m suction. Its body and support are cast iron, and the impeller is available in stainless steel, brass or PP depending on the version. Typical duties include industrial and urban water supply, building water supply, fire fighting, garden irrigation, long-distance transfer, heating and air-conditioning circulation and cold or hot water boosting.

Centrifugal pumps cover the widest range of transfer and boosting duties, from garden irrigation to building water supply.

The MHF series is the higher-flow horizontal centrifugal option: 0.75–3.0 kW (1.0–4.0 HP), maximum flow of 350–900 L/min and maximum head of 12–18 m, with inlet and outlet sizes from 2"×2" to 4"×4", IPX4 motor protection and class B or F insulation. It is used for domestic water supply, urban water-supply systems, industrial water transfer, high-rise pressure boosting, fire-fighting systems, long-distance transfer, HVAC circulation, hot-water circulation and agricultural irrigation, with a maximum liquid temperature of +40 °C.

The HM/VM vertical multistage centrifugal pump is the pressure specialist. With a rated power of 0.37–3.0 kW, rated flow of 2–12 m³/h and rated head of 17–81 m, a 3000 rpm motor and 220 V/50 Hz or 380 V/50 Hz supply, it is designed for clean water transfer, pressure boosting and water treatment — building and high-rise water supply, water plant filtration and district delivery, main pipeline boosting, industrial process water, cleaning and high-pressure flushing, fire protection, cooling and air-conditioning, boiler feed, reverse osmosis and ultrafiltration systems, and swimming pool water treatment. The outer cylinder is stainless steel, and the maximum liquid temperature is 70 °C.

4. Submersible clean-water pumps (QDX series)

A submersible pump works directly underwater, which removes the suction limitation of surface pumps. The QDX vertical submersible pump covers 0.25–2.2 kW (0.34–3 HP), flow of 1.5–65 m³/h and head of 7–32 m, with a maximum immersion depth of 5 m, an 8 m power cable and outlet sizes from 1" to 4". Protection class is IPX8, insulation class B or F, and the motor uses copper winding with a built-in thermal protector and a double sealing structure that separates the motor from the pumped water. It can be supplied with an open or closed impeller depending on the model and application, and is used for household water drainage, farmland irrigation, construction sites, industrial and mining sites, water tanks and water collection systems, ship and marine drainage, and general water transfer.

5. Submersible sewage pumps (V and WQ series)

Sewage pumps are designed for dirty water, not for potable supply. The V series covers 0.18–2.2 kW (0.25–3 HP), maximum flow of 8–40 m³/h and maximum head of 7–17 m, with a maximum immersion depth of 5 m, outlet sizes from ½" to 3", IPX8 protection and a liquid pH range of 4–10. It is used for wastewater drainage and sewage transfer in construction sites, factories, commercial buildings, municipal projects and residential drainage systems.

The WQ heavy-duty submersible sewage pump is the industrial option: 0.75–18.5 kW (1–25 HP), flow of 6–180 m³/h, head of 8–75 m, outlet sizes from 2" to 6" and IPX8 protection. The pump body, impeller and motor housing are cast iron, the shaft is stainless steel or 45# steel with an electroplated surface, and single-phase and three-phase versions are available. It is intended for sewage, wastewater, mine drainage, construction sites, tunnels and wells, and for dirty water where a stronger pump is required.

6. Borehole pumps (SDM/SP/SR/SD/ST/SK/QGD)

Borehole pumps are submersible pumps built for drilled wells and reservoirs rather than open tanks. The model series SDM/SP/SR/SD/ST/SK/QGD covers a power range of 0.25–25 HP in stainless steel, with a design immersion depth of up to 100 m and a choice of rewindable or screen-type motors in single-phase and three-phase versions. Start control boxes, digital auto-control boxes, special mechanical seals and other voltage or 60 Hz options are available on request. Typical applications are domestic, civil and industrial water supply, garden use and irrigation.

Borehole pumps operate inside the well casing, which is why immersion depth — not suction lift — defines their installation.

Step-by-Step Breakdown: How to Size and Select an Electric Water Pump

Selection is a sequence, not a single calculation. Working through the steps below in order prevents most of the mismatches described earlier.

1. Define the water source. A municipal main or elevated tank points to a surface or centrifugal pump. A shallow well or cistern points to a self-priming or jet pump. A drilled borehole points to a borehole pump. A sump or drainage pit points to a submersible sewage pump.
2. Calculate the required flow. Add up the simultaneous outlets — taps, showers, irrigation lines, filling points — and convert the total to L/min or m³/h. Flow determines how quickly the system recovers, not how high water can be pushed.
3. Calculate total head. Add the vertical lift from the lowest water level to the highest discharge point, the friction losses of pipes and fittings, and the pressure required at the outlet. Compare the result with the head range of the candidate model.
4. Check the suction or immersion limit. Surface pumps such as the QB, QT and MHF series are limited to roughly 8 m of suction, and jet pumps such as the STP and Jet series to 9 m. Submersible clean-water and sewage models such as QDX, V and WQ work at an immersion depth of up to 5 m, while borehole models reach up to 100 m.
5. Confirm the liquid conditions. Temperature, pH and particle content eliminate models quickly. The WZB series accepts 0–80 °C and pH 6.5–8.5, the HM/VM series up to 70 °C, the MHF series up to +40 °C, and the V series a liquid pH of 4–10. Sewage pumps handle dirty water; clean-water pumps do not.
6. Match the electrical supply. Confirm single-phase or three-phase availability, voltage and frequency. Models in the range offer 220 V/50 Hz or 380 V/50 Hz, with 60 Hz options available on request for some series.
7. Choose the protection and control level. IPX4 applies to surface-mounted motors such as the QB, STP, Jet, QT, WZB, CPM and MHF series; IPX8 applies to submersible models such as QDX, V, WQ and the borehole series. For automatic operation, look for pressure switches, pressure tanks, dry-run protection and thermal protection — features built into the WZB and AUJET designs.
8. Verify documentation before ordering. Ask for the model-level performance data, material list, certificate scope and warranty terms that apply to the exact configuration being purchased.

Pressure boosting is one of the most common household duties: the pump is sized on total head, including friction losses and outlet pressure.

Use Cases: Where Electric Water Pumps Are Used

Electric water pumps are used across five broad duty groups. Matching a project to the correct group is usually faster than comparing individual models.

Household water supply and pressure boosting

Homes with low or unstable mains pressure, or with an on-site tank or well, use a home water pump to maintain usable pressure at taps and showers. Self-priming jet pumps, intelligent self-priming pumps and automatic pump stations are the usual choices, because they combine priming ability with automatic start and stop. Installations with several bathrooms benefit from a pressure tank, which reduces frequent pump starts.

Garden and agricultural irrigation

Irrigation duty is defined by flow more than by pressure: the pump has to deliver enough volume across the irrigated area while still overcoming the lift from the water source. Surface pumps, centrifugal pumps and submersible pumps are all used, depending on whether the source is a tank, a canal, a well or a borehole. The QT, STP and Jet series are intended for garden irrigation and residential water supply, while the CPM and MHF series support garden and agricultural irrigation alongside their transfer duties.

Irrigation projects are sized on flow first, then head — a pump that cannot deliver the volume will not fix a pressure problem.

Wells, boreholes and deep-water extraction

When the water level sits deeper than 9 m, surface-mounted pumps are no longer an option and a submersible borehole pump is used instead. The SDM/SP/SR/SD/ST/SK/QGD series is designed for water supply from wells and reservoirs, with stainless steel construction and immersion depth up to 100 m, and is applied across domestic, civil and industrial water supply.

Drainage, wastewater and sewage transfer

Drainage duty is about moving water away rather than delivering it. Household water drainage, construction sites, factories, commercial buildings, municipal projects, tunnels and mine drainage all use submersible sewage pumps. The V series covers light to medium wastewater duty, while the WQ series with flow up to 180 m³/h and head up to 75 m handles heavy-duty industrial and construction drainage.

Industrial, commercial and building water systems

Larger buildings and process systems require higher pressure and higher flow. Vertical multistage and horizontal centrifugal pumps serve building water supply, pipeline pressure boosting, industrial process water, HVAC circulation, fire protection, boiler feed, water treatment and swimming pool circulation. In these systems the pump is specified against a duty point rather than a single water outlet, and control and protection features become part of the specification.

OEM and private-label supply for distributors and brand owners

Distributors and brand owners often need a manufacturer who can supply electric water pumps under their own brand rather than a finished catalogue model. OEM programmes typically cover nameplate and carton branding, packaging design and model configuration, and they require the supplier to hold consistent production and documentation across repeat orders.

Comparison Table: Electric Water Pump Families at a Glance

Figures above are the published ranges for CHIMP Pumps model series. Final selection must be confirmed against the duty point of the specific installation.

Sourcing Electric Water Pumps from a Manufacturer: What to Verify

Once the pump family and duty point are clear, the sourcing decision moves to the supplier. For an electric water pump — a product that runs continuously and is often installed in a location that is expensive to service — the relevant questions are about documentation, consistency and after-sales support rather than about catalogue size.

Certification scope. CHIMP Pumps states that its products and management systems hold CE, ISO 9001, CB, SA8000:2014, ISO 14001 and ISO 45001 certification. Certificates have a defined scope, so the certificate number, issuing body and the exact model list should be matched against the models being quoted.

Production capability. A 140,000 m² facility, approximately 630 employees, 75 engineers in the R&D team and an annual capacity of 3,000,000 units describe the scale of the manufacturer’s operation. Scale matters for repeat orders because it affects whether a supplier can hold the same configuration and documentation over multiple shipments.

OEM and customization. CHIMP supports OEM logo and packaging customization: the customer’s logo can be applied to the carton and the pump nameplate, and customers can supply their own packaging design. For orders above 500 units, customized colour cartons are available free of charge. The standard minimum order quantity is 50 units per model; special requirements such as new moulds or customized configurations are discussed per project.

Samples and test reports. Samples can be supplied together with test reports and are normally ready for shipment within 7 days, which allows a buyer to validate performance, materials and packaging before committing to a bulk order.

Warranty and after-sales. Copper-wire motor pumps carry a 12-month warranty. Where a quality issue is caused by production or materials within the warranty period, the process starts with replacement parts, followed by step-by-step maintenance video guidance and technical support to reduce downtime.

Shipping terms. For FCL orders, the factory can arrange container booking, or the buyer’s freight forwarder can coordinate directly. For LCL shipments, the buyer provides the delivery address and logistics are arranged accordingly.

FAQ: Electric Water Pumps and Manufacturer Selection

Next Step: Sample, Quotation or Factory Introduction

CHIMP Pumps (Zhejiang Qiantao Pumps Co., Ltd.) manufactures surface pumps, centrifugal pumps, JET pumps, self-priming pumps, multistage pumps, submersible pumps, sewage pumps, borehole pumps and electric motors for household, agricultural, commercial and industrial water applications.

To move from shortlist to decision, send the duty point — source, flow, head, voltage and liquid conditions — and ask for a model recommendation, a sample with test report, or an OEM quotation.

• E-mail: sales1@chimppumps.com
• WhatsApp: +8618967690396
• Website: www.chinaqiantao.cn
• Factory introduction brochure: download the CHIMP factory introduction (PDF)

Address: Qianwayu Industrial Zone, Daxi Town, Wenling City, Taizhou City, Zhejiang Province, China.

Conclusion: Match the Pump to the Water Problem First

An electric water pump is not a single product but a family of machines that share one drive method. The global market is large — estimated at USD 76.1 billion in 2026 — and centrifugal designs account for the majority of it, but the practical decision for a buyer is far more local: where the water comes from, how much is needed, how high it must be lifted, and what is in the water.

Work through the water source first, then flow, then total head, then the suction or immersion limit, then the liquid conditions and the electrical supply. Those five checks will place almost any requirement into one of the families described here — surface, self-priming or jet, centrifugal, submersible clean-water, submersible sewage, or borehole.

Only after the technical match is confirmed does the supplier comparison become meaningful. At that point, certification scope, production capability, OEM flexibility, sample availability, warranty terms and shipping arrangements are the questions that separate a catalogue listing from a workable long-term supplier.