Depam (Hangzhou) Pump Technology Co., Ltd.: Founded in 2003, it is located in the national economic and technological development zone, is a professional production of metering pumps, pneumatic diaphragm pumps, high-pressure reciprocating pumps, petrochemical pumps, complete sets of chemical dosing devices, water treatment equipment and supercritical Extraction device of high-tech enterprises.
The company introduced advanced technology and scientific management models from Germany in the early 1990s and has been focusing on the research and development of fluid transport equipment for decades. At present, the company has dozens of R&D and design personnel with senior professional titles and has obtained more than 20 patents. It has introduced advanced digital testing platforms is committed to building quality metering pumps and is the world leader in metering pumps.
Graco Inc. (USA)
A global fluid handling powerhouse. Graco's durable and innovative pumps, like the Pro-Flo® SHIFT series with onboard diagnostics, set industry standards for efficiency, ease of maintenance, and digital control. Dominant in paints, coatings, adhesives, and general industrial markets.
Ingersoll Rand (USA)
Born from the union of Gardner Denver and Ingersoll Rand's industrial segment. They offer an exceptionally wide range under the ARO® brand, which is synonymous with reliability. Strong in manufacturing, automotive, and chemical applications.
Dover Corporation (PSG) (USA)
Dover's Pump Solutions Group (PSG) is a conglomerate of several leading pump brands. Wilden® (the pioneer of the AODD pump) and SandPiper® are iconic names with vast global distribution and application expertise, especially in abrasive and shear-sensitive fluids.
Yamada Corporation (Japan)
A leading Asian manufacturer known for high-quality, reliable, and cost-effective pumps. Yamada has a massive global footprint and is particularly strong in water treatment, ceramics, and general industrial transfer. Their NDP series is widely recognized.
Warren Rupp (USA) - A Unit of IDEX Corporation
Now part of IDEX, Warren Rupp (formerly a SandPiper brand) is known for rugged, reliable pumps for demanding applications. Their SandPiper line is a staple in mining, construction dewatering, and heavy industrial settings.
LEWA GmbH (Germany)
A leader in precision and hygienic diaphragm pump technology. While known for their metering pumps, LEWA's ecodos AODD pumps are top-tier for high-value, sensitive processes in pharmaceuticals, food & beverage, and cosmetics, offering excellent cleanability and materials.
DEPA (Germany)
A global specialist purely focused on diaphragm pumps. DEPA is renowned for engineering excellence, offering durable and efficient pumps for harsh chemical and abrasive applications. They have a strong reputation in the European and Asian markets.
Tapflo Group (Sweden)
A fast-growing, independent European manufacturer known for high-quality, modular pumps. Tapflo emphasizes versatility, a wide range of material options (metals and plastics), and strong customer support. Popular in chemical, coating, and OEM applications.
Verder International (Netherlands)
A major distributor and manufacturer with a strong focus on niche and tough applications. Their Verderair brand offers robust solutions, and they are particularly adept at providing packaged systems and expert support for corrosive and abrasive media.

