Composite LPG Cylinder Structure

Haikong LPG composite cylinders feature a lightweight structure with a HDPE liner overwrapped with high-strength glass fiber via filament winding, ensuring high pressure containment and safety for LPG storage/transport.

1.Plastic Liner

Corrosion Proof
Leak-Tight Seal
Lightweight:
Enhanced Safety
Impact & Chemical Resistant

Forms the essential inner vessel, enabling the composite cylinder's weight savings, corrosion resistance, and inherent safety benefits.

2. Glass Fiber

High Burst Pressure
Outstanding Fatigue Resistance
Tailored Design Flexibility

Creates a lightweight, ultra-strong, and durable structural shell that safely contains high-pressure LPG.

3. Proprietary Sealing Design

Haikong's LPG composite cylinders feature a globally unique triple-seal configuration. This innovative design significantly enhances the cylinder's structural integrity and leak-proof safety performance

4. Outer Casing

Impact & Abrasion Resistance
UV & Environmental Protection
Mechanical Damage Prevention
Enhanced Durability
Improved Aesthetics & Surface Finish

Essential protection ensuring the long-term structural integrity, safety, and reliability of the composite cylinder in real-world conditions.

Advantages of LPG Composite Cylinders over Steel Cylinders

Revolutionizing portable gas solutions, Haikong composite LPG cylinders deliver unmatched lightness, robust safety, corrosion resistance for rugged environments. Featuring real-time level monitoring,lighter to carry, safer to use, built to last.

Lightweight Design

Composite materials
significantly reduce weight
30-50% vs. steel cylinders,
enhancing portability and
handling efficiency for users.

Enhanced Safety

Built with impact-resistant
composite shells,protective
layer,preventing explosion.
Fully compliant with EN 14427 stadnards

Visual Content Monitoring

Transparent outer layers or
embedded gauges enable
real-time liquid level checks,
eliminating guesswork during
refills.

Corrosion Resistance

Non-metallic composites
inherently resist rust,
ensuring longevity
even in humid/saline
environments.

Technical Specifications

Get the Perfect Size (6 Options!) HaiKong Composite LPG Cylinders

WATER CAPACITY

12,5 L

18,2 L

24,5 L

26,2 L

27,4 L

33,5 L

Propane Capacity (kg)

5,0

7,5

10,0

11,0

11,5

15,0

Butane Capacity (kg)

6,0

9,0

12,0

13,0

13,5

16,5

Empty Weight * (kg)

4,28

5,25

6,3

6,58

6,79

8,2

Height (mm)

417

501

604

628

655

748

Diameter (mm)

305

305

305

305

305

305

Service Pressure（bar）

21

21

21

21

21

21

Test Pressure (bar)

32

32

32

32

32

32

* without valve

Redefining LPG with Confidence and Innovation

At HaiKong, we engineer advanced LPG solutions to make gas usage simpler, safer, and more reliable—empowering you to focus on life’s most important moments. Our lightweight, ultra-durable composite cylinders set new standards for safety and portability, delivering peace of mind across every application. Trusted worldwide, HaiKong cylinders excel in domestic and leisure settings:
·Cooking | Barbecue
·Heating | Marine
·Recreational Vehicles
And power critical industrial operations:
·Fork-Lift Trucks | Construction
·Lawn & Landscape Equipment
·Material Handling | Emergency Power

HaiKong: Where cutting-edge technology meets everyday reliability. Experience freedom across every horizon.