Driving the Future: Ultra-Lightweight CNG Cylinders for Cleaner, More Efficient Vehicles
Steelhead Composites CNG cylinders are reshaping what’s possible in sustainable transport. The company’s Type IV cylinders are over 70% lighter than steel alternatives, improving fuel economy, extending vehicle range, and simplifying vehicle integration.
Trusted by fleets and OEMs alike, these cylinders meet or exceed all global safety standards while delivering exceptional reliability. With corrosion resistance and a long service life, they help reduce downtime and lower the total cost of ownership.
Photo: Steelhead Composites DOT- and NGV2-certified 16-inch 3600 psi CNG storage cylinder for on-board vehicle use, shown with integrated valve assembly.
Steelhead Composites CNG cylinders are redefining what’s possible in sustainable transportation.
The company’s Type III and Type IV cylinders are more than 70% lighter than steel alternatives—improving fuel economy, extending vehicle range, and simplifying integration.
Trusted by fleets and OEMs alike, these cylinders meet or exceed global safety standards while delivering exceptional reliability. Their corrosion resistance and long service life help reduce downtime and lower total cost of ownership.
Automotive
Ideal for light-duty and heavy-duty vehicle fuel systems. Steelhead Composites cylinders reduce vehicle weight, boosting efficiency without compromising cargo capacity or performance.
Transit & Delivery Services
Perfect for bus fleets and last-mile delivery trucks. These cylinders enable a switch to clean, cost-effective CNG fuel while maintaining range and payload requirements critical to fleet uptime.
Lightweight Type IV CNG Cylinder Highlights
- Gas Type: Compressed Natural Gas (CNG)
- Applications: Cars, buses, trucks, fleets
- Industries Served: Transportation, Public Transit, Delivery, Automotive
- Pressure Rating: 250 bar (3,600 psi)
- Water Volume: 31-270 liters
Lightweight, High-Pressure CNG Cylinders for Automotive and Industrial Use
Steelhead Composites lightweight 280 mm (11 in) diameter 250 bar (3,600 psi) CNG cylinders ranging in water volume of 30 to 140 Liters. Available in Type III (metallic liner), these CNG cylinders are fully overwrapped composite pressure vessels (COPVs) with a 28.6 mm (1⅛ in) diameter port opening on each end.
One port of the Compressed Natural Gas (CNG) cylinder is fitted with a solenoid valve that integrates a thermally activated pressure relief device. Because of their robust construction, Steelhead Composites CNG cylinders can be counted on to be safe, gas-tight, robust, and tough against impact and abuse. Custom volumes are available upon request.
11-inch OD Type 3 CNG Cylinder
- Type: 11-inch OD Type 3 CNG Cylinder
- Liner: Type 3
- Outer Diameter (OD): 280 mm (11 inches)
- Operating Pressure: 250 bar (3,600 psi)
- Ports: Dual Port, 1 1/8"-12
- Mounting: Strap
| Internal Water Volume Liters | Equivalent GGE | Dimension A mm (in) | Dimension B mm (in) | Weight kg (lb) |
|---|---|---|---|---|
| 30 | 2 | 864 (34) | 280 (11) | 19 (42) |
| 45 | 3 | 1067 (42) | 280 (11) | 24 (52) |
| 60 | 4 | 1422 (56) | 280 (11) | 31 (69) |
| 80 | 6 | 1829 (72) | 280 (11) | 40 (88) |
| 100 | 7 | 2159 (85) | 280 (11) | 47 (103) |
| 120 | 9 | 2616 (103) | 280 (11) | 57 (126) |
CNG Cylinder Brochure (3,600 PSI / 250 BAR)
Download the technical brochure for Steelhead’s lightweight composite CNG cylinders, rated to 3,600 PSI for vehicle and fleet storage.
16-inch OD Type 3 CNG Cylinder
- Type: 16-inch OD Type 3 CNG Cylinder
- Liner: Type 3
- Outer Diameter (OD): 414 mm (16.3 inches)
- Operating Pressure: 250 bar (3,600 psi)
- Ports: Dual Port, 1 1/8"-12
- Mounting: Strap
- Valve Options: OMB Lyra CV CNG Valve and PRD, Oasis, VTI TPRD (inquire for others)
- Certifications: NGV2:2023 & DOT FMVSS 304
- Water Volumes: 90L to 270L (inquire about custom lengths)
| Water Volume | Mass (lbs) | Mass (kg) | OAL (in) without valve | OAL (mm) without valve |
|---|---|---|---|---|
| 205 Liter | 203 | 447 | 82 | 2090 |
| 270 Liter | 292 | 642 | 102 | 2578 |
Ready to power your fleet with cleaner energy?
Let’s talk about CNG solutions for your vehicles. Whether you're managing a transit fleet, building new vehicle platforms, or looking to reduce emissions and operating costs, we’re here to help.
Type 4 CNG pressure vessel (NGV2:2023, 3600 psi) undergoing final winding on a 4-axis filament winder for high-strength composite construction.
