Due to their versatility, double-diaphragm pumps (also called AODD pumps) are an excellent solution for various industrial applications. However, it is essential to pay attention to the correct choice of materials to safeguard the plant’s productivity and environmental safety conditions. To make the right choice, it is very important to consult the chemical compatibility guide that Debem provides through a dedicated online configurator. This will allow you to check whether the material you choose for your pump is chemically compatible with the fluid to be conveyed.
Metal pumps: features and applications
Metal pumps are characterised by their excellent performance in terms of robustness and durability, making them an optimal choice for applications in the oil and gas and chemical industries. Metal pumps can be constructed in the following materials.
- Stainless steel pumps: this material is often used for the construction of food and sanitary pumps specifically designed for food and personal care applications.
- Aluminium pumps: a very durable and at the same time cost-effective material that can be used in the industrial sector.
Metal AODD pumps are an ideal solution for handling abrasive liquids and liquids with very high viscosity, such as sludge. It is also possible to use this type of pump when the installation requires the pump to be earthed. In this case, metal pumps are ATEX-compliant and can be used in potentially explosive environments. Metallic AODD pumps have good resistance to temperature changes and are therefore also ideal for outdoor use.
Plastic pumps: features and applications
AODD pumps made of plastic materials provide a high degree of chemical compatibility, are easily transportable and are more cost-effective than metal pumps. Applications for plastic pumps are the water treatment industry, the ink and paint industry, the automotive industry and the chemical industry.
- Polypropylene pumps: ideal for handling aggressive chemicals. They can also be fitted with earthing devices for use in potentially explosive environments.
- PVDF pumps: suitable for use in applications handling very corrosive and aggressive fluids.
Unlike metal pumps, plastic AODD pumps are less likely to be used in outdoor environments due to greater dependence on temperature (e.g. freezing hypothesis) or ultraviolet radiation.
Debem double diaphragm pumps
The metal and plastic pumps offered by Debem represent state-of-the-art technology that has become a benchmark in various industrial settings. Our sales team is available to help you choose the right pumping application for your application needs.