Plastic Diaphragm Pumps
Plastic diaphragm pumps have pump bodies and wetted parts made from engineering plastics like PP, PVDF, or PTFE. They move liquids by the back-and-forth motion of the diaphragms, which changes the chamber volume to draw in and push out fluid. Both air-operated and electric versions are available, depending on whether compressed air or electrical power is preferred.
Features- Our Plastic diaphragm pumps do not require a separate priming device in many installations, which makes start-up easier when liquid levels are unstable.
- Air-operated models can run dry for short periods, which is suitable for frequent start-stop operation or processes where the inlet may occasionally lose liquid.
- Parts in contact with the liquid medium are made from PP, PVDF, or PTFE, to allow the pump to handle acids, alkalis, organic solvents, and other corrosive fluids.
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Polypropylene Diaphragm PumpsPolypropylene diaphragm pumps are made mainly from PP, with all fluid-contact parts resistant to many corrosive liquids.
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PVDF Diaphragm PumpsPVDF diaphragm pumps are made mainly from polyvinylidene fluoride, a plastic material selected for its resistance to strong chemicals.
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PTFE Diaphragm PumpsPTFE diaphragm pumps are made with polytetrafluoroethylene, a material known for strong chemical resistance and good temperature resistance.
Plastic diaphragm pumps are often selected for fluids that are corrosive, abrasive, or not suitable for metal pump bodies. Common applications include:
- Chemical Processing: Transfers acids, alkalis, solvents, raw materials, and chemical intermediates in production and storage areas.
- Food and Beverage: Suitable to transfer juices, jams, syrups, sauces, and similar liquid ingredients; food-grade pump options are available when required.
- Pharmaceutical Production: For raw materials, intermediates, and finished liquid products with clean, controlled transfer.
- Electronics and semiconductors: Used for acid and alkali transfer, slurry recovery, and wastewater handling in wafer and surface treatment processes.
- Mining Operations: Suitable for mine water, slurry, sediment, and other fluids containing suspended solids.
- Environmental and Construction Sites: Handles industrial wastewater, site drainage, paint, glaze slurry, and other fluids with impurities.