7L Oxygen gas bottle

Oxygen Bottle

High-pressure, Mobile, Global standards
DSW Industry is a global manufacturer of oxygen gas bottles and cylinders in Shandong Province, China.
The company holds a Chinese B1 production cylinder license and TUV and CE certifications for its products.
According to ISO standards, the 7L oxygen bottle is China’s most popular cylinder for home and hospital use.
DSW offers a wide range of oxygen gas cylinders in sizes from 2 liters to 80 liters.
In addition to oxygen cylinders, we provide nitrogen, argon, CO2, hydrogen, helium, acetylene gas cylinders, CO2 cartridges, and aluminum cylinders.
Our products are certified with TUV, TPED, CE, and DOT for quality and safety assurance.

Oxygen Gas Bottle

Compact, pressurized, portable, and compliant with international standards.
Oxygen gas bottles are small-sized pressure cylinders for the storage and transport of oxygen gas at above atmospheric pressure.
Oxygen cylinders are commonly used for hospital patient treatment or with an oxy-fuel cutting torch.
DSW offers a wide range of empty and full gas cylinders, including 100% oxygen gas bottles for customers, at competitive prices worldwide.
7L oxygen gas cylinders,Oxygen gas bottle

Specification

Name Parameter
Volume 7 litres
Cylinder outer diameter 140 mm
Material 34CrMo4
Production standards ISO9809-1
Working pressure 200 BAR
Hydrostatic test pressure 300 BAR
Minimum design wall thickness 3.1 mm
Cylinder body weight 8.63 kg
Height of the cylinder body 591 mm
Maximum gas storage 1.4 m³ (1400 L)
Cylinder mouth threads PZ27.8, 25E; 3/4-14 NGT, etc.

Benefits

  1. Portability: A 7-liter gas bottle is relatively small and lightweight, making it easy to transport and handle.
  2. Cost-Effective: Compared to larger cylinders, a 7-liter gas bottle can be more affordable, making it a cost-effective choice for those who don’t require a large amount of gas.
  3. Suitable for Various Applications: This size of gas bottle can be used for various applications, including cooking, heating, and fueling certain types of equipment.

7L oxygen gas cylinders

7L oxygen gas cylinders,Oxygen gas bottle

7L oxygen gas cylinders

7Liters oxygen gas cylinders,Oxygen gas bottle

7Liters oxygen gas cylinders

Raw Material Warehousing and Inspection:

  1. The supplier must provide an original product quality certificate.
  2. The seamless steel pipe undergoes inspection based on raw material inspection factory standards, checking:
    • Appearance: Ensure no deformation, scratches, or defects.
    • Outer Diameter: Tolerance of ±1% for hot-rolled and ±0.75% for cold-rolled (GB/T18248-2021).
    • Wall Thickness: Tolerance for hot-rolled (-10 %~+12.5 %) and cold-rolled (±10% per GB/T18248).
    • Chemical Composition: Tested according to GB/T18248-2021 and TSG23-2021.
  3. Cylinder Quality Traceability: Each cylinder is marked with a transplant number for traceability.

Chemical Composition (Mass Fraction %):

  • 37Mn: Carbon (C) 0.34–0.40, Silicon (Si) 0.10–0.30, Manganese (Mn) 1.35–1.75, Phosphorus (P) ≤0.015, Sulfur (S) ≤0.010, Chromium (Cr) ≤0.30, Molybdenum (Mo) –
  • 34CrMo4: Carbon (C) 0.30–0.37, Silicon (Si) ≤0.40, Manganese (Mn) 0.60–0.90, Phosphorus (P) ≤0.015, Sulfur (S) ≤0.010, Chromium (Cr) 1.9–1.2, Molybdenum (Mo) 0.15–0.3

Seamless Cylinder Testing:

  1. Testing Center: Each batch is rigorously tested to meet production standards before moving forward.
  2. To avoid safety risks or quality issues, the goal is to ensure high-quality material selection and a controlled production process.

Product Quality Control:

  1. The sales, quality inspection, and production departments collaborate to ensure product delivery meets specifications and timelines.
  2. The team has decades of industry experience, ensuring the successful completion of projects.
  3. Production Standards: Products are manufactured according to ISO 9809-3, ISO 9809-1, and GB/T 5099.3.
  4. Inspection Procedures:
    • Blasting Tests
    • Water Pressure and Air Tightness Tests

Water Pressure and Air Tightness Test Report

7Liters oxygen gas cylinders
Chemicals in gas cylinders may be flammable, corrosive, poisonous, inert, or a combination of these. Read the Safety Data Sheet (SDS) for the chemicals in each cylinder you store and use. Understand the concentration, amount, and storage pressure to work with them safely.