Vacuum Solutions for Chemical Industry
DV Vacuum chemical vacuum solutions are designed for processes involving corrosive gases, solvent vapors, condensable media, and explosion-proof requirements.
Typical applications include vacuum distillation, solvent recovery, vacuum drying, crystallization, and degassing under demanding chemical process conditions.
Solution configurations are selected according to gas composition, vacuum level, corrosion conditions, and site safety requirements, using Roots vacuum pumps, dry screw vacuum pumps, liquid ring vacuum pumps, and engineered vacuum systems.
Why Vacuum Technology Matters in Chemical Processing
Chemical production often involves complex media and demanding process conditions. Many applications require low-pressure environments to reduce boiling points, remove residual solvents, improve separation efficiency, or protect temperature-sensitive materials during processing.
In addition, chemical plants frequently deal with flammable gases, corrosive substances, high vapor loads, and condensable media, which means vacuum equipment must be selected not only by pumping speed and vacuum level, but also by sealing method, corrosion resistance, material configuration, and explosion-proof requirements.
DV Vacuum supports chemical customers with both standard vacuum pumps and custom-engineered vacuum systems selected according to actual process requirements.
Typical Applications in the Chemical Industry
Vacuum Distillation
Used to separate compounds under reduced pressure, especially when materials are heat-sensitive or prone to decomposition at normal boiling temperatures.
Solvent Recovery
Suitable for recovering methanol, ethanol, acetone, and other solvents via condensation, supported by high-efficiency equipment such as DVS-V Variable-Pitch Dry Screw Vacuum Pumps and integrated DVBS Roots + Dry Screw Systems.
Vacuum Drying
Helps remove water or residual solvent under low-pressure conditions while protecting temperature-sensitive materials, frequently utilizing oil-free DVS Dry Screw Vacuum Pumps to prevent cross-contamination.
Crystallization
Supports cooling- or evaporation-driven crystal formation under vacuum conditions for more controlled separation and process stability.
Degassing
Removes dissolved or trapped gases from liquids, intermediates, and process materials to support downstream process stability.
Special Gas Handling
Applicable to selected processes involving flammable, reactive, or other special gas media where sealing performance, material selection, and safety design are critical.
Recommended Vacuum Pumps and Systems
| Product / System | Recommended Use | Key Features |
|---|---|---|
| DVS Series (Equal-Pitch) / DVS-V Series (Variable-Pitch) Dry Screw Vacuum Pumps | Vacuum drying, solvent recovery, distillation, and corrosive gas applications | 100% oil-free compression chamber, optional anti-corrosion coatings, with variable-pitch option for lower exhaust temperatures and energy savings |
| DVBS Roots + Dry Screw Vacuum Systems | Dry high-vacuum processes and deep solvent recovery duties | Integrated dry vacuum design, superior high-vacuum pumping speed, clean process protection without oil contamination |
| DVBL Roots + Liquid Ring Vacuum Systems | Wet gas, heavy vapor loads, and condensable mixed chemical streams | Combines high pumping capacity with exceptional condensation handling capability under demanding process loads |
| DVE Series / DLRC Series Liquid Ring Vacuum Pumps | Heavy-duty chemical processes, wet gas evacuation, and vapor-rich conditions | Reliable handling of water vapor and condensables; DVE offers large volumetric capacity, while DLRC two-stage design provides deeper stable vacuum |
Customized Solutions for Chemical Applications
Chemical process requirements vary depending on gas composition, solvent content, corrosion level, vacuum range, temperature, and site safety standards. DV Vacuum provides engineering support to help customers match the right pump type and system configuration to actual operating conditions.
- Optional corrosion-resistant coating solutions, including Hastelloy diffused coating, for aggressive process media
- Advanced mechanical seals are standard, with lip seal and oil seal options available according to process requirements
- Support for explosion-proof motors and explosion-proof electrical control systems
- System integration with condensers, separators, filters, valves, tanks, and control cabinets
- Technical proposal support based on process data and actual installation requirements
Chemical Industry FAQ
Which vacuum pump type fits our process?
· Liquid ring — condensable vapors, solvent recovery.
· Dry screw — oil-free, contamination-free (distillation/drying/degas).
· Roots + backing pump — high speed at low pressure (reactors/evaporation).
· Corrosive media → add Hastelloy/PEK coating + suitable shaft seals.
How do you handle corrosive gases and solvent vapors?
Hastelloy-coated wetted parts, PEK coatings for high-temp wear/corrosion, sealed bearings isolated from process gas. Solvent-heavy streams → liquid ring + matched seal fluid for direct vapor recovery.
What's the typical maintenance interval?
· Liquid ring: 6–12 months inspection.
· Dry screw: 8,000–20,000 hrs between major service (gas-load dependent).
· Good inlet filtration and condensate drainage extend life.
Do you offer ATEX-certified / explosion-proof versions?
Yes — ATEX-compliant configurations available, including sealed motors, inert-gas purging, and flame-arrestor inlet options. Share your gas composition and zone classification, and we will configure a compliant unit with a documented risk assessment.
Need a Vacuum Solution for Your Chemical Process?
Tell us your process conditions, including gas composition, required pumping speed, working pressure, temperature, corrosion level, and explosion-proof requirements. Our engineering team can recommend a suitable vacuum pump or custom-engineered vacuum system for your application.
Applications
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