Can pressure vessels be used to store gases?
Pressure vessels for gas storage
Core principles
- Compressed air reservoirs: 6–16 bar working pressure, 50–50,000 liters, steel construction or AISI 304
- Standards: PED 2014/68/EU cat. III/IV, ADR transport, ATEX Zone 1/2 for flammable gases
- HECHT CPS containment system for gas storage vessels in HPAPI production with nitrogen blanket
- Hydrogen storage: Special steel types (HIC-resistant), 350–700 bar, ASME BPVC VIII
- Cryogenic: Liquid nitrogen storage vessels –196°C, double-walled with vacuum insulation
Pressure vessels for gas storage require specific material investigation and certification. Learn more about HECHT pressure vessels for gas storage and process gas, discover HECHT CPS systems for nitrogen blanket applications with HPAPI, and view our complete process equipment for gas and liquid processing.
FAQ — pressure vessels for gas storage
Can pressure vessels be used for storing gases?
Yes — pressure vessels are the standard solution for compressed gas storage in industrial and process installations. Compressed air reservoirs (6–16 bar), nitrogen buffers (50–300 bar), oxygen vessels (200 bar), and hydrogen storage (350–700 bar) are all pressure vessels with specific material requirements per gas. Compliant with PED 2014/68/EU and additionally ATEX 2014/34/EU for flammable gases.
What materials are suitable for pressure vessels in gas storage?
Material selection per gas: compressed air and nitrogen — carbon steel P265GH or AISI 304, hydrogen — HIC-resistant steel grades (API 941, Nelson curve), oxygen — fat-free processed AISI 316L or copper (no flammable compounds), propane/LPG — carbon steel P355NH compliant with EN 10028-3. AISI 316L with electropolishing for food gases (CO₂, N₂, O₂) compliant with EHEDG and FDA 21 CFR.
What safety requirements apply specifically to gas pressure vessels?
In addition to general PED 2014/68/EU requirements, gas pressure vessels must have: (1) ATEX certification for Zone 1/2 (flammable gases), (2) Annual pressure test and PSV test compliant with EN 14359, (3) ADR certification for portable gas pressure vessels, (4) SIL-certified gas detection systems (H₂, LPG) compliant with IEC 61511, (5) Special grounding against static discharge for H₂ and flammable gases.
Author: Joost van Velzen, Director Hecht Technology B.V.
Related reading
- Pressure Vessels Guide
- What Are the Main Applications of Pressure Vessels
- What Are the Benefits of Using Pressure Vessels
- What Is the Difference Between REACH and Other Chemical Regulations