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Chemical Injection Units (CIU)

The purpose of CIUs is to generate and deliver an accurate dose of high pressure chemical into a manufacturing or treatment process. Their specificity mainly resides in their ability to handle very aggressive fluids and to deliver an extremely accurate amount of chemical over years non-stop. Very specific pumps and advanced materials are used for that purpose.

CIUs typically includes the following main pieces of equipment:

  • Chemical tanks
  • Dosing Pumps
  • Accumulators
  • Filters
  • Control Instruments & Safety Systems

We design, manufacture and install skid-mounted and containerized CIUs for the offshore and marine industries, but also for a wide range of demanding onshore process industries. Typical applications include the on-site storage and injection of various chemicals in refineries, chemical plants and oilfield production pipelines. We have developed for these applications a standard range of CIUs called PETROCHEMISTM:


PETROCHEMISTM is a range of standardised, modular CIUs specifically designed for onshore and offshore oil fields, refineries and chemical plants in accordance with international standards (ISO/API) and major oil and chemical companies’ internal specifications. Our PETROCHEMISTM range is declined into 10 standard models with different tank capacities ranging from 0.2 to 16 m3. All models can be equipped with various types of electrical and air-driven dosing pumps which allow for the accurate and continuous injection of chemicals from 0.1 to 1,000 L/h with pressures up to 10,000 psi in their electrical pump version, and 60,000 psi in their air-driven one.