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| Brand Name: | YUHONG |
| Model Number: | Stripping Coulmn |
| MOQ: | 1 set |
| Price: | negotiate |
| Delivery Time: | 90 - 180 days |
Pressure Vessel Manufacturer for Stripping Column used in distillation and separation processes
YUHONG Pressure Vessel: A stripping column is a specialized type of pressure vessel used in distillation and separation processes, particularly in industries like petroleum refining, chemical processing, and natural gas treatment.
Stripping columns are critical pressure vessels used in distillation and separation processes across industries such as oil & gas, petrochemicals, and chemical processing. Their manufacturing involves stringent design, material selection, fabrication, and testing to ensure safety and efficiency under high-pressure and high-temperature conditions.
Before manufacturing, detailed engineering is performed, including:
Process Design: Determines column diameter, height, tray/packing type, and operating conditions (pressure, temperature, flow rates).
Mechanical Design: Follows ASME BPVC Section VIII (Pressure Vessels) or other standards (PED, API, etc.).
Shell thickness calculations
Nozzle and support design
Stress analysis (FEA if required)
Material Selection: Based on corrosion resistance, temperature, and pressure. Common materials:
Carbon steel (SA-516 Gr. 70) for non-corrosive services
Stainless steel (SA-240 Type 304/316) for corrosive environments
Alloy steels (SA-387 Gr. 11/22) for high-temperature hydrogen service
A. Shell & Head Manufacturing
Plate Cutting & Rolling:
Steel plates are cut (plasma/waterjet) and rolled into cylindrical shells.
Heads (dished ends) are formed via hot/cold pressing.
Welding (Longitudinal & Circumferential Seams):
Submerged Arc Welding (SAW) or Shielded Metal Arc Welding (SMAW) for thick sections.
Post-weld heat treatment (PWHT) to relieve stresses.
Nozzle & Manway Attachment:
Reinforced openings for inlets, outlets, and inspection ports.
B. Internal Components (Trays/Packing Support)
Tray Columns:
Sieve, valve, or bubble-cap trays are fabricated and installed.
Downcomers and weirs are precision-aligned.
Packed Columns:
Structured or random packing (metal/ceramic/plastic).
Liquid distributors and support grids installed.
C. Assembly & Final Welding
Shell sections are joined with circumferential welds.
Internals are installed, and supports are welded.
Lining/cladding applied if needed (for corrosion resistance).
Non-Destructive Testing (NDT):
Radiography (RT) or Ultrasonic Testing (UT) for weld integrity.
Dye Penetrant (PT) or Magnetic Particle Testing (MT) for surface defects.
Hydrostatic/Pneumatic Testing:
Pressurized with water (hydro) or air (pneumatic) to verify strength.
Dimensional & Alignment Checks:
Ensures trays/packing are correctly positioned.
Sandblasting (SA 2.5) for surface cleaning.
Painting/Coating:
Epoxy coatings for corrosion protection.
Internal cladding (stainless steel overlay) for harsh services.
Third-Party Inspection (TPI) by authorized agencies (TÜV, Lloyd’s, SGS, ABS).
ASME "U" Stamp (if designed to ASME standards).
Documentation:
Material test certificates (MTC)
Welding procedure qualifications (WPS/PQR)
Pressure test reports
Large columns may be shipped in sections and field-assembled.
Proper lifting and support to avoid deformation.
| DESIGN CODES | ASME VIII + IBC 2018 + ASCE 7+NACE |
| Application | stripping column |
| Temperature | -20-150ºC |
| DENSITY | 1005 Kg/m3 |
| INSULATION/FIREPROOFING | YES |
| M.D.M.T. | -6 ºC |
| Warranty | 1 Year |
| OPERATING TEMPERATURE | 70 ~ 90 ºC |
| Certifications | ASME U Stamp, National Board R Stamp |
| OPERATING PRESSURE | 0.95~1 Bar G |
Our company offers comprehensive technical support and services for our Pressure Vessel product. Our team of experts is available to assist you with installation, maintenance, troubleshooting, and any other technical inquiries you may have. We are committed to ensuring that your Pressure Vessel operates efficiently and safely at all times.
