Seamless Steel Cylinder—Package Solution for gases
DSW International is a professional manufacturer of seamless cylinders, specialising in the production of seamless steel cylinders, high-pressure vessels, and seamless bottles for global customers
Manufactured from a single piece of high-grade tube steel, our seamless cylinders are free from welded joints, ensuring maximum strength and reliability.
These robust seamless bottles are widely used in industrial, medical, and specialty gas applications around the world.
Key Features of High-Pressure Gas Cylinders
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- High Pressure Capacity
- Typically designed for 200–300 bar (2900–4350 psi) working pressure.
- Suitable for storing oxygen, nitrogen, argon, CO₂, helium, and other compressed gases.
- Durable Seamless Construction
- Made from high-strength seamless steel (typically 34CrMo4 or 37Mn).
- No welds—minimising the risk of leaks and enhancing safety.
- Corrosion-Resistant Finish
- Exterior treated with phosphate coating and powder paint or epoxy resin.
- Ensures long life and rust resistance, even in demanding environments.
- Standardized Size and Volume
- Water capacity: 47 liters
- Typical outer diameter: ~232 mm
- Length: ~1350 mm (varies slightly by manufacturer)
- Weight: ~50–55 kg (empty)
- Valve and Thread Options
- Equipped with standard gas cylinder valves (e.g., CGA, DIN, BS threads).
- Customizable according to gas type and country regulations.
- Compliance with International Standards
- Manufactured under standards such as:
- ISO 9809-1 / ISO 9809-3
- TPED / CE / DOT / GB / EN certifications
- Ensures safe usage and international transport compatibility.
- High Pressure Capacity
Versatile Applications
Seamless steel cylinders (gas bottles) are widely used for storing and transporting high-pressure gases. They are strong, safe, and suitable for many industries.
1. Industrial Use
- Welding and cutting: Oxygen, acetylene, argon
- Laser equipment: Nitrogen, helium
- Gas shielding: CO₂, argon
2. Medical Use
- Medical oxygen: For hospitals, dental offices, ambulatory surgery centres and home care
- Anesthesia gases: Nitrous oxide
- Specialty gases: Breathing air, lab gases
3. Laboratory Use
- Testing: Calibration gases like nitrogen, hydrogen
- Research: Specialty gases for R&D
Packing & Delivery
All seamless cylinders are packed and delivered in strict accordance with international standards, ensuring product integrity, safety, and compliance throughout transit.
The High Pressure Gas Safety Act stipulates safety requirements for gas purposes, production, inspection, handling, and management.
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