Add.:No.209 Wenchang Road, Foreign Comprehensive Agricultural Development Zone, Wenzhou City, Zhejiang Province, China
Tel.: +86-577-86553155
Fax: +86-577-86553150
Contact Person (Charger): Ms Lena Chen

About Us

Defu Machinery was co-founded by Shanghai Y&L Pump Factory and Jiangsu SELE Pump Factory. We are committed to development, production, sell, and maintenance of various types of pumps, self priming sewage pump, air operated diaphragm pump, centrifugal pump, fire pump, diesel engine driven pump, irrigation pump, and some others.

Defu History

  • Shanghai Y&L Pump Factory was founded, and ESCO settled-in for R&D and production of JT&JU series non clogging self-priming sewage pump.
  • 2002

  • We have passed ISO9001: 2008 Quality Management System Certification
  • 2005

  • We began to develop and produce MQ series and D series multistage pumps.
  • 2007

  • In order to improve product quality, pump efficiency and R&D capabilities, we cooperated with the Zhejiang Institute of Mechanical & Electrical Engineering to develop new products and improve the quality of pumps.
  • 2009

  • Wenzhou Defu Machinery Co., Ltd. was founded, and obtained export rights. A professional foreign trade sales team has been established.
  • 2012

  • We focused on improving efficiency of DA/DAZ DIN24255 series end suction centrifugal pump. After one year of efforts, the efficiency of our entire series of pumps increased by 5%, reducing the cost of using water pumps and making more energy-efficient and more eco-friendly.
  • 2015

  • 2004

  • Jiangsu SELE Pump Factory was founded, mainly produces DA series end suction centrifugal pump, this series of pumps is the same kind as KSB’s Kentlo pump, and it conforms to the European standard DIN 24255.
  • 2006

  • We began to develop and produce ISO2858 series chemical pumps and oil pumps
  • 2008

  • We began to develop and produce diesel engine driven pumps and fire pumps.
  • 2010-

  • Large flow mixed-flow pump, double suction pump and GRACO series air operated diaphragm pumps were put into production.
  • 2013

  • Defu obtained CE certificate, and began to develop and produce Super T&U series self priming pump.

At present
More and more users choose our products, such as irrigation pump for Ministry of Agriculture Uganda, flood water pump for Government of Thailand, water drainage pump for open-pit coal mining in Indonesia and Guyana, ballast pump for SAIPEN company, underground drainage pump for using in Australia, and so on. We will continue to make efforts and enhance our expertise to provide our customers with more professional and trustworthy services.

Defu Team

Mr. Chen (first one on the left), Engineer
For new product development and quality management

Jayson (first one on the right), Engineer
For on-site products installation and commissioning

Mr. Frank Chen (first one on the right), Engineer
For product testing before delivery

Mr. Lin, Diesel Engine Engineer
For improvement, management and debugging of diesel engine production equipment

Mr. Liang, Power Control Engineer
For circuit equipment debugging and maintenance

After-Sales Service Department
Keep track of usage of pump regularly every three months

Sales Team, communicate with customers
Help customers to select suitable product according to their needs, and offer quotation

Customer Order Service Team
Keep track of production and transportation status for customers’ orders

Production Process
How our pumps are made, please see production flow chart of our self priming sewage pump.

Make Mould

Foundry Casting

Rough Casting

Machining the Casing


CNC Lathe Machining


Dynamic Balancing of Impeller


Surface Treatment




Painting and Packing

Video Show