Type 4 Composite CNG Cylinders Lightweight & High-Strength Solutions

Ready to Revolutionize Your Fuel Storage?

As North America's leading CNG innovator since 2008, GreenTech Solutions guarantees:

🔹 10-year full warranty
🔹 48-hour emergency replacement
🔹 15% discount on first bulk order

Q: What is a Type 4 composite CNG cylinder?

A: A Type 4 composite CNG cylinder is a high-pressure fuel storage tank made entirely of composite materials, including a polymer liner and carbon fiber reinforcement. It is lightweight, corrosion-resistant, and designed for compressed natural gas (CNG) vehicles. This type offers the highest strength-to-weight ratio among CNG cylinders.

Q: How does a Type 4 CNG cylinder differ from a Type 3 CNG cylinder?

A: Type 4 cylinders use a full polymer liner with composite reinforcement, while Type 3 cylinders have a metal liner (usually aluminum) wrapped in composite materials. Type 4 is lighter but typically more expensive, whereas Type 3 offers a balance between weight and cost for CNG applications.

Q: What are the advantages of Type 3 CNG cylinders?

A: Type 3 CNG cylinders combine a metal liner with composite overwrap, providing durability and moderate weight reduction. They are less expensive than Type 4 cylinders and widely used in commercial vehicles. Their metal liner also simplifies regulatory compliance in some regions.

Q: How to choose between CNG cylinder types for a vehicle?

A: Selection depends on weight constraints, budget, and application. Type 4 suits lightweight needs (e.g., passenger cars), while Type 3 is ideal for cost-sensitive commercial use. Always verify compliance with local safety standards like ISO 11439.

Q: Are Type 4 composite CNG cylinders safe for high-pressure storage?

A: Yes, Type 4 cylinders undergo rigorous testing for pressures up to 300 bar and meet global standards like ISO 11439. Their composite construction resists impact and fatigue, ensuring safe CNG storage. Regular inspections are still required to maintain safety.