7L 150bar CO2 Bottle Argon Nitrogen Helium N2O Air Cylinders

7L 150bar CO2 Bottle Argon Nitrogen Helium N2O Air Cylinders

1、Hydrostatic test of gas cylinder :(1) Ph= 1.5p;  (2) Pressure holding time 30S;  (3) Qualified standards: the pressure gauge pointer shall not fall back and there is no leakage phenomenon;  Residual deformation rate of the bottle body ≤10%; 

2、Gas cylinder: It is essential to perform the visual internal and external inspection in good conditions as follows. 

⎯ The surface of the metal, in particular of the inner wall, should be completely clean, dry and free of oxidation products, corrosion, scale, etc., as these could obscure other more serious imperfections. 

Where necessary, the surface should be cleaned under closely controlled conditions by suitable methods before further inspection; 

⎯ Appropriate sources of illumination with sufficient intensity should be used; 

⎯ After the cylinders have been closed and the threads have been cut, the internal neck area should be examined by means of an introscope, dental mirror or other suitable appliance.

Shockproof rings can also reduce the wear of the cylinder body and prolong the service life of the cylinder.

3、Alias: cylinders, 7L bottles, 7L Arogen, TUV Helium gas bottles, 150bar Air cylinders;7 litre gas bottles; 7 litre gas cylinder; 7 litre gas tanks

On-site gas production: For customers with large and relatively stable demand for air separation gas, the company builds factories in or near the location of these customers and provides products directly through pipelines.

4、Features: Supply contracts usually last 10 to 20 years, include minimum purchase requirements (pay or not negotiate) and price rules, monthly payments, good cash flow.

1、Minimum order quantity: 100 only

2、Nevertheless, extensive field experience, good judgement and independence from production are necessary for the inspector to detect and to be able to evaluate and judge an imperfection at the time of the visual inspection.

Use cylinders:Our seamless steel cylinders are widely used in industry, medical devices, fire fighting and scientific research

3、Products exported :China, Southeast Asia, Middle East, Asia, Africa, Europe, Oceania, America

4、Factory (we are the manufacturer)：Shandong Hongsheng Pressure Vessel Co., LTD

5、Several types of imperfection can occur during the manufacturing of a seamless steel gas cylinder. 

Such imperfections can be mechanical or material. 

They can be due to the basic material used, the manufacturing process, heat treatments, manipulations, necking, machining or marking operations and other occurrences during manufacture. 

This annex identifies the manufacturing imperfections most commonly met and provides general information to the inspectors who perform the visual inspection. 

6、Trend: 

1) Large-scale devices: the unit energy consumption of large air separation devices (more than 5000 m3) is only 1/2 to 1/3 of that of small devices (less than 1000 m3), with high reliability, low operation and maintenance costs and long trouble-free operation time;  

2) The customer structure gradually changes: the original steel, chemical and other industries, the proportion of lithium, semiconductor will increase in the future;  

3) Outsourcing ratio keeps increasing: the growth rate of on-site gas production by third-party gas companies is faster than that of the whole industry, and the industry compound growth rate of third-party gas companies is higher than that of the gas industry 2PCT; 

4) The price war of on-site gas production is fierce, and gas companies need to rely on retail gas business to improve their comprehensive profitability. 

7、7 litre Gas Cylinder Product Parameters table (ISO9809-3 TUV 150BAR)

7L 150bar CO2 Bottle Argon Nitrogen Helium N2O Air Cylinders

• 7L cylinders
• 7L bottles
• 7L Arogen cylinders
• TUV Helium gas bottles
• 150bar Air cylinders