Nordstone is an industry-leading manufacturer of high-performance stripper columns in Italy, specializing in custom-engineered mass transfer solutions for critical industrial applications.
With over 20 years of expertise in heavy fabrication, we design and manufacture advanced vapor-liquid separation systems that efficiently remove volatile organic compounds (VOCs), dissolved gases, and hazardous pollutants from liquid process streams.
Operating from state-of-the-art manufacturing facilities, our team of expert engineers builds robust trayed and packed stripper columns engineered to withstand extreme pressures, cryogenic to high-temperature ranges, and highly corrosive chemical environments.
Every column shell is precision-fabricated in strict compliance with the European Pressure Equipment Directive (PED) CE mark, as well as ASME Section VIII and API standards. From initial chemical process simulation to non-destructive testing (NDT), Nordstone provides turnkey engineering excellence that guarantees maximum thermal efficiency, low pressure drop, and exceptional operational safety for Italy’s leading oil and gas, petrochemical, and pharmaceutical refining facilities.
Frequently Asked Questions (FAQs)
1. What industrial applications are Nordstone stripper columns used for in Italy?
Nordstone custom-builds stripping columns for volatile compound removal across diverse European process sectors. Key applications include solvent recovery in pharmaceutical manufacturing, sour water stripping (removing H2S and NH3) in petrochemical refineries, VOC elimination for environmental wastewater compliance, and product purification in chemical processing plants.
2. Which manufacturing codes and certifications do your vessels comply with?
For the Italian and European markets, all our stripper columns carry the PED (Pressure Equipment Directive) CE mark. Additionally, our facility is certified to manufacture vessels in strict accordance with ASME Section VIII (Div. 1 & Div. 2), API 12J, and ISO 9001:2015 global quality standards.
3. What materials of construction (MOC) do you use for corrosive applications?
We select specialized materials based on your process stream chemistry to prevent corrosion and premature stress cracking. Available materials include:
- Stainless Steel: SS304/304L, SS316/316L
- Duplex Alloys: Duplex 2205 and Super Duplex
- Nickel Alloys: Inconel, Monel, and Hastelloy
- Cladded Options: Carbon steel base with high-alloy internal weld overlays for cost-effective corrosion resistance.
4. Do you offer both trayed and packed stripper column configurations?
Yes. Depending on your throughput, foaming tendencies, and allowable pressure drop, we design both packed columns (utilizing structured or random packing for maximum surface area and low pressure drop) and trayed columns (utilizing sieve, valve, or bubble-cap trays for wide operating flexibility and high-capacity processing).
5. How does Nordstone optimize the thermal and structural efficiency of its columns?
Our engineering team utilizes advanced Process Simulation Software and Computational Fluid Dynamics (CFD) to analyze internal vapor-liquid flow paths. This guarantees uniform liquid distribution across the column cross-section, maximizes mass transfer rates, minimizes steam consumption, and prevents liquid carryover.
6. Can Nordstone manufacture columns capable of vacuum stripping?
Absolutely. We engineer heavy-wall columns equipped with structural vacuum rings capable of operating from full vacuum up to high-pressure ratings exceeding 200 bar. Vacuum stripping allows plants to lower the boiling point of process liquids, preventing thermal degradation of heat-sensitive components while reducing energy usage.
7. What types of internal components are integrated into your stripping systems?
To ensure uncompromised process efficiency, we manufacture and integrate proprietary internal components, including:
- High-efficiency liquid distributors and redistributors
- Bed limiters and packing support plates
- Structured or random packing media
- Integrated mist eliminators / demister pads to eliminate fine liquid droplets from exiting vapor streams nordstoneng.com
8. What non-destructive testing (NDT) protocols do you perform on-site?
Quality control is foundational to our 20-year track record. Every vessel undergoes comprehensive internal NDT validation before delivery:
- Radiography Testing (RT) and Ultrasonic Testing (UT) for weld integrity
- Magnetic Particle Inspection (MPI) and Dye Penetrant Testing (DPT)
- Hydrostatic pressure testing and Helium leak testing
- Final validation by independent third-party inspection agencies (e.g., TUV, Lloyds, Bureau Veritas, DNV)
9. Do you provide complete skid-mounted stripping packages?
Yes, Nordstone specializes in modular, skid-mounted process systems. We can deliver a complete turnkey system that integrates the stripper column with necessary heat exchangers, reboilers, condensers, feed pumps, automatic level control valves (LCV), and fully integrated PLC control panels for plug-and-play installation.
10. How do your columns contribute to environmental compliance and sustainability?
Our industrial columns achieve up to 99% pollutant removal efficiency. By effectively stripping toxic volatile compounds, greenhouse gases, and hazardous organic matter from waste streams, our systems enable Italian industrial plants to comply with stringent European environmental regulations and achieve Zero Liquid Discharge (ZLD) objectives.
11. Can you accommodate high-temperature and deep-cryogenic operations?
Yes. Our material selection and mechanical designs cater to extreme thermal profiles, operating reliably across an extensive design temperature spectrum ranging from -50°C up to +400°C, making them suitable for both cryogenic gas processing and high-temperature hydrocarbon cracking.
12. Does Nordstone supply engineering documentation for plant auditing?
We provide a comprehensive technical data book with every column. This includes mechanical design calculations compiled via industry-standard software (such as PV Elite or COMPRESS), General Arrangement (GA) drawings, welding documentation (WPS, PQR, WPQ), material test certificates (MTC), and certified NDT reports.
13. What is the typical lead time for a custom stripper column?
Lead times vary depending on the column’s diameter, height, material availability (such as exotic nickel alloys), and design complexity. Generally, custom engineering, procurement, fabrication, and testing take between 16 to 26 weeks. We coordinate logistics closely to match your plant’s scheduled shutdown windows.
14. Do you offer modifications, repairs, or retrofits for existing industrial columns in Italy?
Yes. Beyond new builds, Nordstone provides specialized maintenance engineering. We can perform structural retrofits, replace damaged internal tray networks with modern structured packing to boost capacity, add external cooling/heating dimple jackets, and execute certified structural modifications following code guidelines.
15. How can we initiate a custom stripping column project with Nordstone?
You can contact our specialized technical sales and engineering division directly through our dedicated digital channel. Share your process flow parameters, feed composition, target separation efficiencies, and spatial footprints, and our engineering team will develop a detailed mechanical and commercial quotation tailored to your plant’s criteria.
To share your technical specifications or request a custom engineering consultation, please visit our designated communication portal via our Contact Us page.