Founded in 2012, Wenzhou Defu Machinery Co., Ltd. is a professional pump manufacturer integrating R&D, production and sales. Defu Machinery, dedicating to undertaking of pump. Our company focuses on the application research of pumps and complete sets of equipment, and provides users with technical solutions based on the principle that the pump which is suitable is a good one. Now we have 3 manufacturing plants including SELE PUMP , YL PUMP & E-CORNELL PUMP, and below are our major products.
l Air Operated Diaphragm Pump
l Self Priming Sewage Pump
l DIN24255 Series End Suction Centrifugal Pump
l ISO Centrifugal Pump
l Double Suction Pump
l Multistage Centrifugal Pump
l Mixed-Flow Pump and Axial Flow Pump
l Diesel Engine and Complete Sets Of Equipment
Aluminum mining air operated double diaphragm pump low density, high strength. It can be used for transporting chemically unstable fluids.
1.5inch air operated diaphragm pump in mining industry: tunnel sewage, drainage, coal slime and stone slurry, cement slurry, mortar grouting, explosive slurry, lubricating oil, etc.
Metal diaphragm pump not only can exhaust the flow liquid, but also can convey some uneasy flowed medium, with the merits of self priming pump, slurry pump and impurity pump, etc.
AOE aluminum air driven diaphragm pump simple structure, less wearing parts, At the same time, the slurry double diaphragm pump is a kind of corrosion resistant pneumatic diaphragm pump, And it can transport viscosity within the range of 10000 centipores of liquid.
High pressure booster air powered membrane pump is a kind of excellent performance, has more corrosion resistance, more wear resistance, more high temperature resistance and other high-quality pneumatic diaphragm pump.
The air diaphragm pump has the function of self priming without rotating parts. It can achieve dry priming and wet priming, which self -priming height is 5m and 8m respectively.
Aluminum alloy double diaphragm pump not only can exhaust the flow liquid, but also can convey some uneasy flowed medium, with the merits of self priming pump, slurry pump and impurity pump, etc. It is an excellent aluminum alloy diaphragm pump.
1/2 Inch Aluminum Membrane Pump ,which is driven by air. It is a kind of positive displacement pumps which volume changes caused by compressing diaphragms in both side.
1/2 inch mini polypropylene pneumatic diaphragm pump has six advantages, such as reliable quality, long service life, low noise, small vibration, high head, never crash and fine workmanship.
Plastic Membrane Pump ,which is driven by air. It is a kind of positive displacement pumps which volume changes caused by compressing diaphragms in both side.
2inch polypropylene air operated duplex diaphragm pump can be used directly as a submersible pump, it uses air as the power source, and does not have the leakage and other security risks. This diaphragm pump has lower cost than submersible pump which is caused by the maintenance of motor.
1.5 inch plastic air operated double diaphragm pump AODD pump is also known as corrosion resistant engineering plastic AODD pump, Its flow pump body part is made of polypropylene, is not rust, no pollution, strong corrosion resistance of the 1.5 inch diaphragm pump for paints & solvents, acid liquid.
The valve ball materials are Teflon, Santoprene, EPDM, ect. It has a very low friction coefficient, excellent self-lubrication, good corrosion resistance, dimensional stability, and no deformation.
Quick Connector is a joint that can connect or disconnect pipes without tools. The operation is simple, time saving and manpower saving when disconnecting and connecting with quick connector.
Pneumatic diaphragm pumps cause pulse and hydraulic vibration due to their own reciprocating motion impact, and may cause damage to the whole pumping system. Pulsating dampers eliminate almost all hydraulic vibration and improve overall performance and stability of industrial fluid flow processes and chemical transport processes.
Diaphragm materials are Teflon (PTFE), Viton, Buna-n, Neoprene, Santoprene, EPDM, ect. Made of imported material, the diaphragm stress of air operated diaphragm pump is reduced to the minimum, and the service life is extended.
The valve ball materials are Teflon, Santoprene, EPDM, ect. It has a very low friction coefficient, excellent self-lubrication, good corrosion resistance, dimensional stability, and no deformation. valve seat: The valve seat materials are Teflon, Santoprene, Buna-n, ect.
Removable Muffler: The pump body installed with muffler, the delivery head and flow can pass the pneumatic valve open to realize the step less adjustment. Effectively reduce air duct noise.
Diaphragm Rod (Shaft) from #321 stainless steel, the connecting rod has good corrosion resistance, abrasion resistance, and self-lubricating performance. Particularly grinded, the surface has lower friction coefficient.
Our AOK50 PP high flow flap valve pneumatic diaphragm pump can be called the Large solid particle flap valve diaphragm pump, it can pass through the larger solid particles. the use of the AOK50 PP flap valve waste water diaphragm pump even in bad working conditions, the impurities of sewage or complex liquid medium, is not easy to plug.