Pneumatic diaphragm pumps

Description

These are equipment designed to pump liquids efficiently and safely, using compressed air as a power source, making them ideal for environments where electricity is not viable or poses a risk. Their double diaphragm design allows for handling viscous, corrosive liquids with solid particles or shear-sensitive materials, ensuring a constant and reliable flow in industrial and environmental applications.

These pumps are widely used in water treatment, mining, chemical, petrochemical, and pharmaceutical industries, thanks to their self-priming capability, dry-run operation without damage, and handling of aggressive fluids. Made with corrosion-resistant materials such as polypropylene, stainless steel, PVDF, or aluminum, they ensure durability and prolonged performance even under demanding operating conditions.

With minimal maintenance and modular design, Lasmert diaphragm pumps offer installation flexibility, easy replacement of parts, and long-term reliability, making them the ideal choice for critical pumping systems in industrial and environmental applications.

Features

Metal Pumps
• Simple assembly
• Sturdy and durable construction
• Wide range of sizes
• Multiple material offerings for your applications
• Submersible and portable
• Freeze-free
• Lubrication-free
• Operate in vacuum
• Sizes: From ½ to 3”.
• Materials: Aluminum, cast iron, stainless steel, and Hastelloy.
• Maximum flow: 1033 lpm
• Maximum suction: 9.8m (Primed) / 5.8m (Unprimed)

Plastic Pumps
• High chemical resistance.
• Wide range of sizes and materials.
• Submersible and portable.
• Freeze-free.
• Lubrication-free.
• Operate in vacuum.
• Size from ¼” to 3”.
• Materials: Conductive acetal, conductive polypropylene, polypropylene, PVDF.
• Maximum flow: 901 lpm.
• Maximum suction: 9.8m (Submerged) / 4.9m (Surface).

Performance

They operate using compressed air that alternately drives two diaphragms connected to a pumping chamber. The alternating motion creates suction at the intake and discharge at the outlet, generating a continuous flow without the need for electrical power.

The design allows handling of liquids with solids, viscous, or corrosive substances, as the fluid does not come into contact with sensitive moving mechanical parts. Additionally, dry operation is possible without risk of damage, and the pressure and flow rate can be adjusted by regulating the air supply, offering precise pumping control in all applications.

Documents

• EN_FT_5100000000018_Versamatic 1_2 Aluminum_Teflon Pneumatic Pum
• EN_FT_5100000000019_ATEX Versamatic 1 aluminum pneumatic pump_bu