Steel cylinders high pressure

It is transported in high pressure steel cylinders equipped with brass valves. 

It is transported in high pressure steel cylinders equipped with brass valves. Physical properties are summarized in Table 9.21 and the vapour pressure/temperature relationship ... 

Because oxygen is relatively insoluble in water, it can be collected by water displacement using the same apparatus employed to collect hydrogen (Figure 14.1). Oxygen is seldom prepared in the laboratory, though, because it is commercially available as a compressed gas in high-pressure steel cylinders. 

The electrolyzer consists of four high-pressure steel cylinders. Each cylinder has 80 cells connected in series, fed by a current of 150 A, at a total voltage of 160 V. The individual cylinders are connected in parallel, so that through the whole electrolyzer a current of 600 A and 160 V flows. 

Elemental chlorine is a toxic, yellow-green gas at standard temperatures and pressures. It is supplied as a liquid in high-strength high-pressure steel cylinders, and vaporizes rapidly when released. As the liquid evaporates, its temperature falls and slows the evaporation rate, necessitating the use of a container manifold or vaporizer. 

The following sections summarize the inspection procedures provided in CGA C-6, Standards for Visual Inspection of Steel Compressed Gas Cylinders [10]. Except where noted, the focus pertains to low pressure and high pressure steel cylinders. While many of the same considerations apply to the inspection of aluminum cylinders and cylinders made of materials other than steel, the respective CGA technical publications should be consulted for specific procedures and defect limitations concerning such cylinders. See CGA C-6.1, C-6.2, andC-6.3 [11, 12, 13]. 

General criteria for low pressure and high pressure steel cylinders are given in the following paragraphs. For greater detail, see the referenced CGA publications. 

High pressure steel cylinders. The following general rules should be applied during visual inspection ... 

High pressure steel cylinders. Industry practice is to accept dents up to 1/16 inch (1.59 mm) depth when the major diameter of the dent is 2 inches (50.8 mm) or greater. 

High pressure steel cylinders. Limits for cuts, gouges, or digs for high pressure steel cylinders are established by stress considerations. That is, a cylinder must be rejected when the remaining wall thickness is less than the minimum allowable wall thickness at manufacture, obtained using the maximum wall stress limitation de-... 

Interior corrosion is best evaluated by a hydrostatic test combined with careful visual inspection. Ultrasonic thickness-measuring and flaw-detection devices may be used to evaluate specific conditions. Corrosion limits for both low and high pressure steel cylinders were dis-... 

For high pressure steel cylinders, the hammer test is a valuable indicator of internal corrosion and is a convenient test that can be made without removing the valve prior to each charging of the cylinder. The hammer test should be performed on empty unpressurized cylinders. 

Each high pressure steel cylinder, standing alone, must be given a hammer test by tap-... 

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