Industrial Grade Excellence
Pressure Vessel Manufacturer, Supplier & Custom Fabrication in India
VVIOK Industry is an established, premier pressure vessel manufacturer and trusted pressure vessel supplier based in Ahmedabad, Gujarat, India. With decades of domain expertise and precision engineering excellence, we design, fabricate, and deliver high-integrity pressure containment equipment for chemical processing, petrochemical refineries, pharmaceutical facilities, oil and gas operations, agrochemical plants, and high-purity water treatment utilities worldwide. Fabricated in strict accordance with the ASME Boiler and Pressure Vessel Code (BPVC) Section VIII Division 1 & Division 2, ISO 9001:2015, and PED 2014/68/EU, our custom vessels guarantee absolute structural safety, total leak prevention, and uncompromising compliance with international industrial benchmarks.
Industrial pressure vessel fabrication demands sophisticated manufacturing infrastructure, certified welding expertise, and rigorous metallurgical process controls. At VVIOK Industry, our heavy fabrication plant is equipped with computerized hydraulic plate bending rolls, automatic submerged arc welding (SAW), GTAW/TIG and GMAW/MIG stations, plasma arc cutting systems, and CNC nozzle profiling machinery. From forming dished ends (including 2:1 ellipsoidal heads, torispherical heads, hemispherical caps, and conical transitions) to seam-welding heavy-wall cylindrical shells, our end-to-end pressure vessel fabrication adheres to comprehensive inspection protocols. Our engineers utilize Finite Element Analysis (FEA) and computational fluid-thermal stress modeling to eliminate stress concentration zones and ensure lifetime durability under severe cyclic pressures and thermal variations.
As leading stainless steel pressure vessel manufacturers, we specialize in engineering corrosion-resistant vessels utilizing premium certified alloys, including SS 304, SS 304L, SS 316, SS 316L, and high-performance Duplex 2205 or Super Duplex stainless steels. These metallurgy choices ensure exceptional resilience against severe pitting, crevice corrosion, intergranular degradation, and harsh chemical attack from acids, bases, and volatile solvents. For ultra-clean pharmaceutical and biotechnology processes, our sanitary vessels feature internal electro-polishing down to Ra < 0.4 µm with clean-in-place (CIP) and steam-in-place (SIP) spray ball assemblies.
Furthermore, VVIOK Industry ranks among specialized high pressure vessel manufacturers capable of designing heavy-duty vessels engineered for operating pressures exceeding 150 bar (2,200 PSI) and design temperatures from cryogenic -196°C up to +450°C. These heavy-wall vessels serve vital roles as hydraulic accumulators, high-pressure gas storage receivers, pulsation dampeners, separator columns, and chemical autoclave reactors. While metallic construction remains the gold standard for high-temperature and severe mechanical stress environments, modern industrial material innovations have also influenced developments among composite pressure vessel manufacturers, particularly for specialized lightweight storage and polymer-lined systems. At VVIOK Industry, we engineer robust metallic vessels and lined containment solutions designed to withstand extreme hydraulic stresses and corrosive media where uncompromised reliability is paramount.
As a dedicated pressure vessel supplier to leading engineering conglomerates across more than 18 countries, VVIOK Industry ensures complete quality assurance and documentation traceability. Every vessel undergoes 100% non-destructive examination (NDE), including radiographic weld testing (RT), ultrasonic testing (UT), dye-penetrant inspection (DPI), pneumatic leak detection, and mandatory hydrostatic pressure testing at 1.5 times the maximum allowable working pressure (MAWP). Partnering with VVIOK Industry provides you with certified engineering designs, EN 10204 3.1 Material Test Certificates (MTC), third-party inspection compliance (TUV, BVQI, SGS, Lloyds), and secure, export-grade seaworthy packaging.
Core Performance Features
Certified pressure vessel manufacturer complying strictly with ASME Section VIII Div 1 & 2 and ISO 9001:2015 codes
Advanced pressure vessel fabrication with automated SAW, TIG, and MIG certified welding procedures
Renowned stainless steel pressure vessel manufacturers using SS 304, SS 316L, and Duplex 2205 alloys
Specialized high pressure vessel manufacturers engineering vessels rated up to 150+ bar working pressure
Industry-grade solutions aligning with high-performance metallic and composite pressure vessel manufacturers criteria
Custom capacities from 100 Liters to 100,000+ Liters with torispherical, ellipsoidal, or hemispherical heads
100% Non-Destructive Testing (NDT) including Radiography (RT), Ultrasonic (UT), and Hydrostatic proof testing
Global pressure vessel supplier exporting to 18+ countries with EN 10204 3.1 MTC and TUV / SGS inspection
Comprehensive Engineering Specifications for Pressure Vessels:
1. Design Codes & International Quality Compliance:
- Design Standards: ASME Boiler and Pressure Vessel Code (BPVC) Section VIII Division 1 and Division 2.
- European & International Directives: Pressure Equipment Directive (PED 2014/68/EU), CE Marking, and BS EN 13445.
- National Standards: IS 2825 (Indian Standard for unfired pressure vessels) and PD 5500.
- Quality System: ISO 9001:2015 certified design, welding, and quality management.
2. Vessel Types & Structural Configurations:
- Vertical Pressure Vessels: Vertical orientation with skirt, leg, or lug support for compact plant footprints.
- Horizontal Pressure Vessels: Saddle-supported vessels designed for bulk fluid retention and phase separation.
- High-Pressure Reaction Autoclaves: Jacketed and agitated reaction vessels engineered for exothermic chemical processes.
- Gas Receivers & Surge Tanks: Buffer vessels engineered for compressed air, nitrogen, oxygen, and natural gas lines.
3. Materials of Construction (MOC):
- Austenitic Stainless Steel: SS 304, SS 304L, SS 316, SS 316L, and SS 321.
- Duplex & Super Duplex Alloys: Duplex 2205 (UNS S32205 / S31803) and Super Duplex 2507 (UNS S32750).
- High-Yield Carbon Steel: SA 516 Grade 60 / 70 (Normalized), SA 106 Gr B, and IS 2062 Grade B.
- Special Clad Alloys: Inconel 625, Hastelloy C-276, and Monel cladding for ultra-corrosive chemical streams.
4. Operating Parameters & Capacities:
- Volumetric Capacity: 100 Liters up to 100,000+ Liters custom engineered.
- Design Pressure: Full vacuum (-1 bar) up to 150+ bar (2,200+ PSI).
- Design Temperature: -196°C (cryogenic services) to +450°C (high-temperature thermal fluid lines).
5. Precision Heads & End Closures:
- Formed Heads: 2:1 Ellipsoidal, Torispherical (Klöpper / Korbbogen type), Hemispherical, and Conical ends.
- Manway & Inspection Ports: Quick-opening davit arm manholes (400mm to 600mm ID) and inspection handholes.
- Nozzle Connections: ANSI B16.5 150# to 2500# Flanged, DIN, Butt-weld, and sanitary Tri-Clamp connections.
6. Testing, NDE & Quality Documentation:
- 100% Hydrostatic Pressure Testing at 1.5 times design pressure.
- Radiographic Testing (RT) and Ultrasonic Testing (UT) on longitudinal and circumferential weld seams.
- Dye-Penetrant Examination (DPT) on root and final weld passes.
- Full Dossier: EN 10204 3.1 Material Test Certificates (MTC), WPS/PQR weld logs, and third-party inspection reports.
