Pressure Vessels
Pressure vessel fabrication under ASME U Stamp, Section VIII Division 1 with complete documentation and certified hydrostatic testing.
In short: Pressure vessel fabrication is one of the most regulated activities in the process industry. INCALCA holds the ASME U Stamp, authorizing it to fabricate pressure vessels in compliance with the ASME Code. We fabricate separation drums, steam accumulators, gas vessels, industrial filters, process reactors and any custom vessel required by the client, always with ASME backing and independent Authorized Inspector supervision.
Pressure vessel fabrication is one of the most regulated activities in the process industry. INCALCA holds the ASME U Stamp, authorizing it to fabricate pressure vessels in compliance with the ASME Code. We fabricate separation drums, steam accumulators, gas vessels, industrial filters, process reactors and any custom vessel required by the client, always with ASME backing and independent Authorized Inspector supervision.
Design and Calculation per ASME Section VIII Div. 1
Pressure vessel design begins with analysis of service conditions: design pressure, temperature, contained fluid, material and pressurization cycles.
- Wall thickness, head and nozzle calculation
- Wind and seismic load calculations for vertical vessels
- Saddle design for horizontal vessels
- Nozzle and reinforcement design per UG-37 and Appendix 1
- Internal support, tray and distributor calculation
- Calculation review by Authorized Inspector before fabrication
Fabrication under ASME U Stamp
All fabrication is performed under ASME Code requirements and under National Board Authorized Inspector supervision.
- Certified ASTM materials: A-516 Gr 70 (carbon steel), A-240 TP 316L (stainless)
- Plate cutting, forming and rolling with precision machinery
- Qualified WPS/PQR welds under ASME Section IX
- Identification and traceability of all materials
- Inspection records at each fabrication stage (ITP)
- Vessel marking: data plate with pressure, temperature and ASME serial number
Inspection, Testing and Certification
ASME U stamp certification requires the Authorized Inspector to be present at critical fabrication points and to sign the final documentation.
- Radiographic (RT) or UT inspection of welds per UW-11
- Liquid penetrant testing (LP) on nozzle and accessory welds
- Hydrostatic test at 1.3x design pressure (UG-99)
- Authorized Inspector (AI) presence and signature at test
- ASME U-1 form: vessel construction certificate
- User manual with design data, materials and maintenance procedures
Types of Vessels INCALCA Fabricates
INCALCA fabricates a wide range of pressure vessels for Venezuela's most demanding industries.
- Two-phase and three-phase separation drums (gas-liquid, gas-liquid-water)
- Steam accumulators and flash expanders
- Pressure filters: coalescing, cartridge and bed filters
- Mixing and contact reactors at moderate pressure
- Compressed gas and LPG pressure storage vessels
- Custom double-pipe and shell-and-tube heat exchangers
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