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
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.
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.
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.
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.
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.
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.
Flexible Hose: Explosion-proof flexible connecting pipe is suitable for combustible dust environment, It has the advantages of fire resistance, corrosion resistance, water resistance, aging resistance, good flexibility, firm structure and reliable operation. Chemical hose: Can be widely used to transport corrosive chemical liquids and gases, excellent chemical resistance. The special construction process makes it cost-effective, light, soft, easy to operate and durable.
Flange connection is a detachable connection, It is the part that connects a pipe to a fitting or device. It is usually used for connecting pipe ends or for equipment inlet and outlet.
Pneumatic coupling refers to air filter and pressure reducing valve. The pressure reducing valve can stabilize the pressure of the gas source, so that the gas source is in a constant state, which can reduce the damage to the valve or actuator and other hardware when the air pressure of the gas source changes abruptly. The filter is used to clean the air source. It can filter the water in the compressed air and avoid the water entering the device with the gas.