What Is A Diaphragm Pump?
Air operated pneumatic diaphragm pumps not only can exhaust the flow liquid, but also can convey some uneasy flowed medium, with the merits of self-pumping pump, diving pump, shield pump and impurity pump etc. Not like other kinds pumps, this pump is simple in structure, installation and maintenance. The medium conveyed by the pump will not touch the matched pneumatic valve and coupling lever etc. It can transmit the adhesive liquid (the viscosity I below 1000centipoise) and needn’t the oil lubricant. Even if idling, it has no influence to the pump.
Overview
Working principle
The working principle of diaphragm pump can be briefly summarized as the "suction - drainage - suction - drainage" cycle process.
1.drive diaphragm move: through the action of compressed air or liquid, drive diaphragm from the suction cavity side to the discharge cavity side.
2.suction process: when the diaphragm moves to the side of the discharge chamber, the suction chamber is connected with the inlet valve, and the diaphragm pump inhales liquid from the inlet.
3.discharge process: at the same time, the liquid of the discharge chamber is pushed to the outlet through the driving device, and the discharge chamber is connected with the outlet valve.
4.cycle:the diaphragm continues to move reciprocating, the liquid is discharged from the suction cavity to the discharge cavity, to complete a complete pumping process.
Structure
The diaphragm pump consists of a pump body, a diaphragm, an inlet and outlet pipe and a valve, a push-pull rod and a power device
Application
Diaphragm pumps are widely used in a variety of liquid transport scenarios, including paint, gum, pigments, adhesives, sewage, oil and mud. Its leak-free design makes it suitable for a variety of industries and environments.
Material
1.aluminum alloy: small density, easy to form and good oxidation resistance, suitable for paint, paint and other materials transportation, light and convenient, easy to carry and install .
2.cast iron:strong wear resistance and moderate price, suitable for sewage, sludge, rainwater and wastewater treatment, etc., better stability in large diameter diaphragm pump .
3.stainless steel:corrosion resistance, wear resistance and adapt to a variety of chemical substances,suitable for food processing,pharmaceutical industry and corrosive liquid transportation, especially suitable for strict hygiene requirements of the environment .
4.plastic:such as engineering plastics, polypropylene, etc., excellent corrosion resistance and low cost, suitable for weak acid and weak alkaline liquid transportation, lightweight and cost-effective .
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