Commercial Pressure Vessels
Commercial Pressure Vessels Engineered for Demanding Applications
From compact Type III COPVs and Type I pressure vessels to large gas-transport platforms, CNG cylinders, bulk gas storage and lightweight hydraulic accumulators, Steelhead develops pressure vessel solutions around application, packaging and certification requirements.
Commercial Product Portfolio
Pressure vessel platforms organized around how they are used.
Steelhead's commercial portfolio includes all-metal Type I pressure vessels and Type III composite overwrapped pressure vessels for mobile and stationary gas storage, CNG, hydrogen, industrial gas and fluid-power applications. Product-family pages make it easier to compare vessel architectures before selecting an individual platform or configuration.

Compact Type III COPVs
Nomad Series
Compact composite-overwrapped pressure vessels for mobile, marine and space-constrained gas-storage systems.
- Trek — 3000 PSI Gas Bottle
- Ranger — 350 Bar Neck-Mount COPV
- Tide — Compact CNG Cylinder

Type I Pressure Vessels
Atlas Series
Modular, space-efficient gas storage for industrial, hydrogen, energy, test-bench, mobile and specialty-gas applications.
- Low-pressure accumulation vessels
- Hydrogen buffer tanks
- Lightweight, corrosion-resistant alternatives to traditional steel tanks

High-Pressure Composite Vessels
Reliance Series
High-performance composite pressure vessel platforms engineered for reliable high-pressure gas storage across demanding commercial and industrial applications.
- Lightweight composite construction
- Engineered for high-pressure gas storage
- Configurations for demanding commercial applications

Compact & Large CNG
CNG Cylinders
Type III CNG cylinders for vehicle, marine, fleet and specialty compressed-natural-gas applications, organized separately from UN/ISO vessels.
- Compact CNG cylinders
- Large vehicle and fleet CNG cylinders
- NGV2 / FMVSS 304 product pathways

Stationary & Modular Storage
Composite Bulk Gas Storage
Composite pressure vessel solutions for hydrogen, CNG, industrial gases, ground storage, buffer systems and energy infrastructure.
- Hydrogen storage
- CNG and industrial-gas storage
- Ground and buffer applications

Lightweight Fluid Power
Composite Hydraulic Accumulators
Lightweight composite accumulator families for mobile, industrial and weight-sensitive fluid-power systems.
- PowerMax Series
- MicroMax Series
- AccuLite Series
Commercial Applications
From individual vessels to integrated storage systems.
Hydrogen
Pressure vessels for buffer storage, gas transport and compatible commercial hydrogen systems.
CNG
Compact and large Type III cylinders for vehicle, marine and specialty CNG applications.
Industrial Gas
Platforms suitable for compatible industrial gases including nitrogen, helium, argon and breathing air.
Fluid Power
Composite accumulator solutions where lower system mass and packaging efficiency matter.
More Than a Vessel
Engineering support from product definition through validation.
Steelhead's commercial pressure vessel programs can draw on in-house design, engineering, testing, certification support and integration experience. That allows customers to begin with a standard platform or work with Steelhead to evaluate pressure, volume, mounting, ports and regulatory requirements around the application.
Start With the Application
Need help selecting or developing a pressure vessel?
Tell Steelhead about the gas, working pressure, available envelope, mounting approach and certification requirements. The engineering team can help identify a standard platform or determine whether a custom solution is appropriate.
