BluNet supplies fiber-wrapped composite gas cylinders designed for lightweight, high-strength compressed gas storage. Combining fiber-reinforced materials with suitable liner technologies, these cylinders offer weight-saving advantages over conventional all-metal cylinders in applications where portability and handling are important. Depending on the design and applicable approvals, composite cylinders can serve automotive, emergency breathing, scuba diving, industrial, and specialty gas applications.
Key Features and Benefits
- Lightweight Construction: Reduces cylinder weight for easier handling, transportation, and equipment integration.
- High Strength: Composite reinforcement is engineered for specified working pressures and operating conditions.
- Corrosion Resistance: Fiber-reinforced overwraps resist many environmental corrosion conditions.
- Flexible Design Options: Different liner materials, winding configurations, capacities, and pressure ratings support diverse applications.
Types of Composite Gas Cylinders
Composite cylinders are classified by their liner construction and the extent of fiber reinforcement.
| Cylinder Type | Construction | Key Characteristics |
|---|---|---|
| Type 2 – Hoop-Wrapped | Metal liner with composite fibers around the cylindrical section. | Partial reinforcement reduces weight compared with all-metal cylinders. |
| Type 3 – Fully Wrapped Metal Liner | Metal liner, commonly aluminum, fully wrapped with composite fibers. | Lightweight design with a metal liner. |
| Type 4 – Fully Wrapped Polymer Liner | Polymer liner fully wrapped with composite fibers. | Lightweight design with corrosion resistance. |
The appropriate cylinder type depends on the intended gas, working pressure, capacity, and required certification.
Applications
- SCBA Cylinders: Lightweight breathing-air storage for compatible firefighting, rescue, and industrial breathing apparatus. Explore our SCBA cylinders.
- Scuba Diving: Selected composite cylinders designed and approved for underwater breathing-air applications.
- CNG Vehicles: Compressed natural gas storage in compatible automotive fuel systems where weight reduction is beneficial.
- Industrial and Specialty Gases: Selected applications requiring lightweight compressed gas storage, subject to gas compatibility and applicable approvals.
Standards and Product Selection
Composite cylinders must meet the standards and regulations applicable to their intended service. Requirements vary by application and market and may include ISO 11439 for on-board natural gas vehicle fuel cylinders, applicable DOT requirements, UN transport regulations, or relevant breathing-apparatus and diving-cylinder standards.
When selecting a cylinder, consider gas compatibility, working pressure, water capacity, dimensions, valve connections, service life, inspection requirements, and destination-market approvals.
Contact BluNet
BluNet supports customers seeking composite gas cylinders for automotive, breathing equipment, diving, and other suitable applications. Contact us with your technical specifications, intended application, and certification requirements to discuss suitable cylinder options.
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