What is the role of vacuum deaerators in the chemical industry?
Vacuum De-Aerators in the Chemical Industry — Key Points and Applications
Key Points
- Applications: Resins, solvents, coatings, adhesives, and chemical intermediates with REACH registration
- Standards: ATEX 2014/34/EU Zone 1/21 + PED 2014/68/EU (pressure equipment) + REACH (EC) 1907/2006
- HECHT product: ProClean Conveyor with ATEX-certified de-aeration for chemical raw materials
- Materials: AISI 316L, Hastelloy C-276, PTFE lining for corrosive media
- ROI: De-aeration prevents 5–15% product rejection from gas entrapment in end product
For more information on vacuum de-aerators for the chemical industry from Hecht Technology: view our pages on chemical industry process equipment, ATEX-certified equipment, and ProClean Conveyor systems with de-aeration.
FAQ — Vacuum De-Aerators in the Chemical Industry
Which chemical products require vacuum de-aeration for quality assurance?
Products sensitive to oxidation (polyurethane resins, alkyd paints), products with high viscosity where air pockets cause visible defects (epoxy systems, silicone rubber), and products where gas content affects reactivity (monomers, catalysts). Hecht Technology provides free advice on the need for de-aeration based on your product specifications.
How is a vacuum de-aerator certified for ATEX Zone 1 in the chemical industry?
ATEX Zone 1 certification requires Ex certification of all electrical components (Category 2G) per EN IEC 60079-0 and EN IEC 60079-1/7. The mechanical design must comply with ATEX Directive 2014/34/EU for non-electrical equipment (EN 13463). Hecht Technology supplies de-aeration systems with complete EU type-examination certificate and ATEX documentation package.
What are the material requirements for vacuum de-aerators with corrosive chemicals?
For corrosive media (acids, alkalis, halogen compounds), vacuum de-aerators are constructed in AISI 316L with Ra ≤0.8 µm surface finish, Hastelloy C-276 for highly corrosive media such as HCl, or PTFE-lined constructions for oxidizing acids. Hecht Technology determines the correct material choice based on REACH Safety Data Sheets and corrosion charts.
Author: Joost van Velzen, Sales Director Hecht Technology B.V.
Related Reading
- Vacuum De-Aerators: The Complete Guide
- How a Vacuum De-Aerator Affects End-Product Consistency
- How a Vacuum De-Aerator Works in a Production Process
- Powder Processing & Transport: Product Overview