Application engineering
Review fluid characteristics, operating conditions and material compatibility before choosing a configuration.
DESMI ROTAN INTERNAL GEAR PUMPS
DESMI ROTAN gear pumps for viscous process liquids
Explore ROTAN HD, GP, CD and ED internal gear pump families for oils, bitumen, resins, chocolate and temperature-controlled duties.
WILDEN AIR-OPERATED DOUBLE-DIAPHRAGM PUMPS
Find the right pump for your process
Explore metallic and non-metallic AODD pumps, matched repair kits and replacement parts. Search by your full model code or item number.
2012Year established
9,586Pump configurations
2,299Parts & repair kits
GlobalIndustrial supply & support
Explore our pump brands
All pump brands →OUR PRODUCT RANGE
Find the pump. Find the parts.
Browse by product family, then refine your selection by model, material and item number.
Metallic AODD Pumps
Aluminum, stainless steel and cast iron configurations.
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Non-metallic AODD Pumps
Polypropylene and PVDF wetted construction.
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Wet End Repair Kits
Service kits matched to your full item number.
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Air End Repair Kits
Air-system components and maintenance packages.
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Diaphragms & Valve Parts
Diaphragms, balls and seats for pump maintenance.
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Accessories & Dampeners
Components for the complete pumping installation.
Explore products →Since 2012
ABOUT DFIN PUMP
Your industrial pumping partner in Shanghai
Shanghai Dfin Pump Co., Ltd. was founded in 2012. In 2020, we formed two divisions: DFIN-branded pumps and imported pump trading.
Our engineers bring more than ten years of experience in selection, technical proposals and applications. We support industrial customers with fluid-transfer, metering, system integration and maintenance solutions.
Learn More About DFINWHY DFIN
More than a product supplier
Pump & parts identification
Match the complete model and item number, including referenced Air Kit and Wet Kit components.
Lifecycle service
Selection consultation, installation, commissioning and maintenance support according to your project scope.
FROM REQUIREMENT TO QUOTATION
A clear process for your next project
Share your requirement
Item number, fluid and duty point.
Review the configuration
Size, materials and service scope.
Confirm your quotation
Quantity, supply arrangement and delivery.
Keep your process running
Commissioning and maintenance support.
INDUSTRY SOLUTIONS
Built around your fluid and process
Chemical & petrochemical
Material selection for demanding transfer duties.
Water & wastewater
Treatment chemicals, sludge and process pumping.
Food & manufacturing
Application review for production and utility systems.
PRODUCT SUPPORT
Before you order
The complete code makes the difference.
What information should I send?
Please send the complete model or item number, fluid, flow, pressure, temperature, quantity and destination. A clear nameplate photo is helpful.
Does a photo confirm the exact configuration?
A photo helps identify the pump family, but cannot confirm every internal material. Please include the full model code and item number before ordering.
Can you help with repair-kit matching?
Yes. Send the pump model and item number, plus any existing kit reference. We will review air-end and wet-end compatibility before quotation.