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Diaphragm pumps - PCM Lagoa

The Lagoa series of reciprocating pumps is designed for metering a wide variety of products, including minerals, paper and oil, across a range of industries.

Lagoa reciprocating pump principle

The Lagoa reciprocating pump is composed of a membrane which is connected to a piston. Its alternating movement successively fills and empties the pumphead. As illustrated in the diagram below:

  • The backward movement of the membrane opens the bottom check valve to allow entry of the fluid, which fills the pumphead

  • The membrane's forward movement closes the bottom check valve, opens the top check valve, and expels the dose of liquid

Options

  • Foot valves
  • Injection rod
  • Safety and retention valves
  • Pulsation dampers
  • Ready to meter assemblies
  • Multiplexing

Discover our new PCM industrial pumps and equipment catalogue here. 

PCM Lagoa Brochure
  • Picture of the PCM Lagoa™ diaphragm dosing pump
  • Picture of the PCM Lagoa™ diaphragm dosing pump composing a system

Advantages of Lagoa range

There are many advantages to choosing a Lagoa reciprocating pump, thanks to our innovative design and drive.

Lagoa reciprocating pump design

  • Simple and robust construction
  • Reliable metering
  • Adaptable – our reciprocating pumps can meter a wide range of fluids
  • Simple to maintain
  • Dry running

Electro-mechanical drive

  • Does not cause and is not affected by interferences
  • Reduced mechanical and hydraulic shocks
  • Silent operation

Performances of Lagoa dosing pumps

  • Maximum flow : 315 l/hr per pumphead
  • Adjustable from 10 to 100%
  • Maximum pressure: 12 bar
  • Maximum temperature: 90°C
  • Precision: ± 1%
  • Linearity: ± 3%
  • Deliverable within 2 to 6 days

Markets

  • Pumping solutions for wastewater and sludge treatment

    Specifically designed equipment tailored to the needs of treatment plants, ranging from transferring wastewater and dewatered sludge to managing chemical products.

    Picture of PCM pumps and systems for sludges and waste water treatment

  • Mechanical pumps

    Light and heavy industries require versatile pump systems that can be easily integrated into their production chains, weather upstream during manufacturing or downstream during waste processing.

    PCM pumps and systems for mechanical engineering

  • Chemical pumps

    Product compatibility and versatility are what the chemical industry looks for in pumps. Manufacturers of specialty chemicals in particular, require pumps capable of handling fluids with fragile composition and complex rheology.

    PCM pumps and systems for chemicals transfer and dosing

  • Slurry pumps

    Abrasiveness is the first challenge in the mineral industry. Downtime caused by equipment failure can bring an entire quarry or production facility to a halt. Robustness, ease of maintenance and spare part delivery times are of the utmost importance.

    PCM pumping systems for mining applications

  • PDPs for the new energies market

    To meet their promises of sustainability, the new energies must combine environmental responsibility with real-world economics. PCM provides volumetric pumps capable of handling fluids and solids accurately and reliably, while keeping costs under control.

    PCM volumetric pumps for new energies treatment

  • Pulp and paper pumps

    In terms of productivity, the paper industry is one of the most demanding sectors. The majority of production facilities operate non-stop, and any downtime can be costly. Additionally, paper plants use vast quantities of water, which must be managed and treated in accordance with strict regulations.

    PCM pumps and systems for pulp and paper manufacturing