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Chemicals are part of our daily lives and we encounter them every day. Whether it be the refining of petroleum products, manufacture of clothing and cosmetics, development of pharmaceuticals, or the treatment of food, the production of these goods require the use of liquid chemicals.

In many cases, these liquids are hazardous and can cause significant damage to people, equipment and the environment. Among them can be strong acids like hydrochloric acid and hydrofluoric acid; alkalis such as caustic soda and caustic potash solution; and dangerous solvents like acetone and isopropanol – but also various toxic substances.

Chemical Icons

Challenges in Handling Chemical Products

Any time hazardous chemicals are handled, there is an inherent risk that they will be released through carelessness, technical defects or selection of the wrong equipment. The challenge, then, for manufacturers is to handle them in a way that eliminates any chance for their release into the atmosphere where they can harm humans or the environment.

While safety in handling these chemicals is a top concern for those who come in contact with them, there is also a secondary one: enabling the highest level of operational efficiency to be achieved. These chemicals are often very expensive and any loss due to leakage or release has a direct effect on the manufacturer’s bottom line.

Pumps represent a central operating resource, especially in the processing of chemicals, where they ensure the in-plant transfer in the production process. However, keeping these dangerous chemicals fully contained is often easier said than done. Since many chemicals can also be highly corrosive, the pumping equipment used to transfer them is prone to chemical attack if the materials of construction are not compatible (e.g., temperature resistant or chemical resistant) with the acid, caustic or solvent. Materials of construction are not the only factor to consider when determining if a pump should be used to handle dangerous chemicals. Another area to focus on is the actual design features of the pump.

Chemical Manufacturing

Leading Pump Manufacturer

There are various types of chemical pumps on the market that are used in production with dangerous liquids. While most technologies have shortcomings when it comes to the reliable, energy-efficient transfer of high-purity chemicals, air-operated double diaphragm pumps (AODDP) from Almatec® possess the design and construction features that are necessary to guarantee full containment of dangerous chemicals while also offering working characteristics that enable the highest level of operational efficiency to be achieved.


Advantages of Almatec Chemical Process Pumps

  • Solid housings, unlike injection-molded plastic housings typically used by other suppliers, offer greater load-bearing capacity and reliability, and their compact, space-saving design makes them much easier to handle. They are designed to have as few corners, edges and dirt traps as possible.
  • At Almatec, the solid housing can be made not only of polyethylene (PE) but also of the chemically-multiresistant material polytetrafluoroethylene (PTFE). This high-quality housing material allows the AODD pump to be used with a wide range of chemical formulations.
  • Both construction materials (PE and PTFE) can easily be converted to a conductive state, which means that they can also be used in explosion-proof areas (ATEX).
  • Increased safety due to CNC manufacturing process - Almatec pumps are designed with 2 levels of pitch while other suppliers of double diaphragm pumps typically have 4 levels of pitch. The result is lower manufacturing tolerances and a reduced risk of leakage when compared to the injection-molding production process commonly used in the market.
  • Due to the absence of rotating parts, there is no shearing of the medium. It also eliminates rotating and abrasive seals, ensuring that the quality of the media is maintained.
  • To minimize the risk of media leakage, Almatec pumps have self-sealing
    NPT threads.
  • Almatec air-operated diaphragm pumps have many other advantages due to their design, including self-priming, dry-run capability, overpressure safe, technically sealed in accordance with TA-Luft (German law) , snore operation, ... 


Pumps for Demanding Applications

The Almatec product range includes numerous chemical-resistant pumps. Below you will find a small selection of our portfolio. We would be happy to to help you select a suitable pump for your individual application.