How is the pump packed for shipping?

Each pump is packed in a polywood case with a steel base plate, fuel tank, and trailer. The case measures 3.8*1.6*1.6m with a gross weight of 879kg.

What is the maximum flow rate and head?

The maximum flow rate is 350 m3/h, and the maximum head is 30 meters.

What brands of diesel engines are used?

The pump uses a DEFU-D4042 diesel engine with a prime power of 42kw at 1500 rpm.

Portable 4 Inch 20 HP Diesel Engine Sewage Pump

Name: Portable 4 Inch 20 HP Diesel Engine Sewage Pump
Brand: Wenzhou Defu Machinery Co., Ltd.
SKU: 1972124935

Zhejiang, ChinaWenzhou Defu Machinery Co., Ltd.

US$9,856.00

1 Set

Product profile

Customization

Available

After-sales Service

Remote Guidance

Warranty

1 Year

Model NO.

DD4TW-4TX-CCSM

Type

Self-priming Pump With Outer Recirculation

Air Engine Type

Diesel Engine

Theory

Jet-flow

Transmission

Direct Connection Transmission

Structure

Single Stage Pump

Inlet*Outlet Size

6 Inch *6inch DN150

Pump Type

Portable Diesel Engine Pump

Pump Casing

Cast Iron

Impeller

Iron

Shaft

45# Steel

Seal Type

650-2150rpm

Max Flow Rate

350m3/H

Max Head

45m

Operating Point

300m3/H @ 18 M

Suction Lift

7.6 M

Max Solids

76.2 mm

Driven Engine

China Duetz

Prime Power

42kw @ 1500 Rpm

Displacement

3.12L

Controler

Auto / Manual Smart Controler

Transport Package

Plywood Case

Specification

879kg, 3.8*1.6*1.6m

Trademark

DEFU

Origin

China

HS Code

8413709990

Production Capacity

120PCS/Year

Key features

Anti-Clogging Design: Handles ultra-long fibers and solids up to 76.2mm with strong impurity disposal capability.

High Suction Lift: Self-priming function allows water transfer from rivers or wells with up to 7.6m suction lift.

Portable Structure: Comes with a steel base plate, 60L fuel tank, two-wheeled trailer, and rain cover for mobility.

Diesel Engine Power: Powered by DEFU-D4042 diesel engine with 42kw prime power at 1500 rpm.

100% Quality Testing: Every pump undergoes rigorous testing for flow rate, head, seal leakage, and motor power.

Robust Construction: Built with cast iron casing, iron impeller, and 45# steel shaft for durability.

Flexible Control: Equipped with an auto/manual smart controller for easy operation and monitoring.

1-Year Warranty: Provides a comprehensive 1-year warranty with remote guidance after-sales service.

Company profile

Wenzhou Defu Machinery Co., Ltd.

Zhejiang, China

Business Type: Manufacturer/Factory, Trading CompanyExport Year: 2018-03-23Nearest Port: shanghai,ningboAverage Response Time: ≤2.81hTerms of Payment: LC, T/T, PayPal, etc.International Commercial Terms(Incoterms): FOB, CFR, CIF, EXW

AI-Powered supplier vetting

SummaryWenzhou Defu Machinery Co., Ltd. is a China-based limited company in Wenzhou, Zhejiang, described both as a trading company and manufacturer/factory. Its business centers on industrial pumps and related equipment, with production bases in Shanghai, Zhejiang, and Jiangsu and reported manufacturing relationships or acquisitions that may broaden capability. The supplier reports ISO 9001 certification, seven production lines, 6–10 R&D engineers, and 6–10 quality-control staff. It serves multiple international markets, began exporting in 2018, and reports standard delivery terms of within 15 working days in off-peak periods and one month in peak periods. Evidence is insufficient to confirm after-sales service, customization, financial credibility, or a substantial customer track record. One trade record and one named buyer are provided, but this does not establish broad customer-case experience.

Supplier typeThe supplier is legally identified as Wenzhou Defu Machinery Co., Ltd., a limited company in Zhejiang, and is classified as both a trading company and manufacturer/factory. Its stated pump R&D, manufacturing, sales activities, production bases, acquisitions, and OEM relationship support a combined manufacturer-trader profile rather than a pure trading intermediary.

CertificationsThe supplier reports holding ISO 9001 certification for its management systems. No certification number, issuing body, validity period, or additional product certifications are provided, but the stated ISO 9001 holding is explicit evidence of certification.

R&D capabilityThe company states that it is dedicated to pump research and development, reports 6–10 R&D engineers, and has expanded through acquisitions and production bases in multiple provinces. These facts indicate some organized R&D and capability-development activity, although no patents, new-product records, testing facilities, or specific innovations are provided.

Production capacityProduction capability is supported by the manufacturer/factory classification, seven reported production lines, production bases in Shanghai, Zhejiang, and Jiangsu, a broad pump portfolio, and stated order fulfillment within 15 working days off-season and one month during peak season. The stated acquisition and OEM activities further support manufacturing involvement.