Indoruss Synergy Pvt. Ld.

TYPE 4 CNG CYLINDER

Type 4 CNG Cylinder

Four types of cylinders exist in the market for HPV for storage of CNG and Hydrogen :

• Type 1: The traditional steel cylinder
• Type 2: Steel cylinder with composite reinforcement
• Type 3: Composite cylinder with metal liner
• Type 4: Composite cylinder with polymer liner

Highlights of Type 4 cylinders

• Type 4 Composite Cylinders are typically around 70% of weight reduction over Type 1 and 2 Steel cylinders
• And 25% to 35% weight reduction over Type 3 Aluminum liner based cylinders because of presence of light weight HDPE LINER
• Extensive CARBON FIBRE coating ensures higher heat resistance
• Bonfire test ensures no explosion in event of fire with controlled discharge of gas through cylinder safety values
• Additional Glass Fiber coating for UV protection and longer cylinder life
• HDPE liner ensures ZERO FATIGUE and ZERO corrosion as compared to other type of cylinders
• Type 4 cylinders have higher Class pressure withstanding capacity when compared with Type 3 cylinders

Tests revealed

• Type 4 Cylinders demonstrated better class temperature performance over Type 3 cylinders
• Rigorous In house Burst Test on Type 4 Cylinders at manufacturing time ensures water tight QAP
• No splinters in case of Type 4 cylinder burst due to excess pressure unlike other metal liner based type 1,2 ,3 cylinders
• Estimated Filling Cycle per Type 4 HPV is 750 ╴1000 per year for estimated 20 years life span