Next-Generation Pressure Vessels for Hydrogen and Industrial Gas Storage
Our large composite pressure vessels are built to exceed expectations where weight, durability, and safety matter most. These vessels combine advanced filament-winding techniques with high-strength materials to offer significant weight savings over steel alternatives—without sacrificing performance.
Designed for stationary and mobile applications alike, Steelhead’s large pressure vessels help reduce system weight, simplify handling, and improve overall operational efficiency. They are ideal for hydrogen storage, compressed natural gas, and industrial gas containment, enabling cleaner energy and safer operations at scale.
Low-Pressure Hydrogen Buffer Tanks for Fuel Cell Applications
We utilize Type 1 Aluminum 6061-T6 to manufacture low-pressure hydrogen buffer tanks designed to operate within a range of 300 to 500 psi. These tanks are a critical component of ground-based electrolyzer systems, specifically engineered for fuel cell applications. The use of Aluminum 6061-T6 provides an optimal balance of strength, durability, and lightweight properties, making it an ideal material for safely storing hydrogen at these pressures.
Aerospace - Launch Vehicle Pressurization
Our large composite pressure vessels provide lightweight, durable, and high-strength gas containment for critical launch vehicle pressurization systems.
Renewable Energy - Hydrogen Fueling
Steelhead’s large pressure vessels are ideal for stationary or mobile hydrogen storage at fueling stations, reducing system weight and improving handling efficiency.
Industrial Gas - Power Grid Support
These vessels safely contain compressed gases used in energy storage systems that stabilize and support grid demand during peak usage.
Defense - Energy Storage
Designed for high-performance environments, our composite vessels enable secure and efficient energy storage in mobile and tactical defense systems.
Large Volume, High-Pressure Vessel Capabilities
- Pressure Vessel Type: Type 3 or Type 4
- Gas Type: Hydrogen, Natural Gas, Nitrogen, Air, and many others
- Applications: Gas transport, bulk ground storage, fueling stations, launch systems
- Industries Served: Aerospace, defense, energy, utility, and industrial
- Pressure Rating: 300 psi (20 bar) to 6,000 psi (414 bar) – custom pressures available
- Size/Volume: Up to 550 liters
Large Port Opening 5000 psi Gas Transport Vessel
- Liner: Type 3
- Operating Pressure: 350 bar (5,000 psi)
- Outer Diameter: 17 inches (435 mm)
- Water Volume: 90L to 270L
- Ports: Patented Steelhead large port opening enables quick customization of valves and pressure relief devices
- Certifications: UN/ISO DOT, UN/ISO Transport Canada, UN/ISO Australian Gas Association, PED
- Compatible Gases:
- UN1006 Argon, compressed
- UN1046 Helium, compressed
- UN1049 Hydrogen, compressed
- UN1971 Methane or Natural Gas, compressed (high methane content)
- UN1065 Neon, compressed
- UN1066 Nitrogen, compressed
- UN1002 Air, compressed
- UN1056 Krypton, compressed
- Customer Applications: Bulk hydrogen storage, bulk nitrogen storage, oxidizer for launch vehicles, mobile hydrogen generation systems, tank farms
Fully certified and DOT, Transport Canada, Australian Gas Association, and PED approved for compressed gas storage and transport.
| Outside Diameter (mm) | Outside Diameter (in) | Length (mm) | Length (in) | Water Volume (L) | H2 Gas Capacity (kg) | N2 Capacity (kg) | Air Capacity (kg) |
|---|---|---|---|---|---|---|---|
| 435 | 17.12 | 1016 | 40 | 90 | 2.07 | 32.3 | 33.4 |
| 435 | 17.12 | 1422 | 56 | 133 | 3.0 | 51.8 | 53.6 |
| 435 | 17.12 | 2110 | 83 | 205 | 4.85 | 79.9 | 82.6 |
| 435 | 17.12 | 2616 | 103 | 270 | 6.2 | 105.2 | 108.7 |
5000 psi Gas Transport Vessel
- Liner: Type 3
- Operating Pressure: 350 bar (5,000 psi)
- Outer Diameter: 13.5 inches (343 mm)
- Water Volume: 83L (additional lengths available upon request)
- Ports: Patented Steelhead port opening allows for quick valve and pressure relief device customization
- Certifications: UN/ISO DOT, UN/ISO Transport Canada
- Compatible Gases:
- UN1006 Argon, compressed
- UN1046 Helium, compressed
- UN1049 Hydrogen, compressed
- UN1971 Methane or Natural Gas, compressed (high methane content)
- UN1065 Neon, compressed
- UN1066 Nitrogen, compressed
- UN1002 Air, compressed
- UN1056 Krypton, compressed
- Customer Applications: Bulk air storage, bulk nitrogen storage, transportable air storage
| OD (mm) | OD (in.) | Length (mm) | Length (in.) | Water Volume (L) | H2 Capacity (kg) | N2 Capacity (kg) | Air Capacity (kg) |
|---|---|---|---|---|---|---|---|
| 343 | 13.5 | 1419 | 55.9 | 83 | 2.3 | 32.3 | 33.4 |
6000 psi Gas Transport Vessel
- Liner: Type 3
- Operating Pressure: 414 bar (6,000 psi)
- Outer Diameter: 12 inches (300 mm)
- Water Volume: 20L to 113L
- Ports: Patented Steelhead port opening allows for quick valve and pressure relief device customization
- Certifications: UN/ISO DOT (Available Q4)
- Compatible Gases:
- UN1006 Argon, compressed
- UN1046 Helium, compressed
- UN1049 Hydrogen, compressed
- UN1971 Methane or Natural Gas, compressed (high methane content)
- UN1065 Neon, compressed
- UN1066 Nitrogen, compressed
- UN1002 Air, compressed
- UN1056 Krypton, compressed
- Customer Applications: Bulk air storage, bulk nitrogen storage, transportable air storage, oxidizer for launch vehicles, offshore gas storage
- Value Proposition: The large, flat bottom provides exceptional stability when the tank is stored in a vertical position
| Volume (L) | Volume (Gal) | OAL (mm) | OAL (in.) | Mass (kg) | Mass (lbs) |
|---|---|---|---|---|---|
| 33 | 8.8 | 833 | 33 | 155 | 71 |
| 38 | 10 | 881 | 35 | 169 | 77 |
| 57 | 15 | 1307 | 51 | 242 | 110 |
| 66 | 17.5 | 1490 | 59 | 283 | 129 |
| 76 | 20 | 1675 | 66 | 321 | 146 |
| 95 | 25 | 2046 | 81 | 386 | 175 |
| 114 | 30 | 2416 | 95 | 448 | 204 |
Ready to lighten your load without compromising performance?
Let us help you design a high-capacity composite pressure vessel system that meets your most demanding specs—engineered for safe, lightweight storage of high-pressure gases in the toughest industrial environments.
270L Type 3 DOT-certified composite overwrapped pressure vessels, rated to 350 bar (5000 psi), designed for integration into utility-scale bulk hydrogen storage systems. Engineered for high reliability and efficiency in large-scale hydrogen applications.
