Specialty gases typically refer to calibration gases, zero gases, carrier gases, span gases, instrumentation gases and bump test gases. Standard high pressure DOT / TC steel cylinders are available in 20, 40, 55, 80, 125, 150, 250 & 300 cuft sizes. Specialty high pressure ISO 4500 & 6000PSI steel cylinders are available for extra capacity up to 580cuft.
Electronic specialty gases include both high purity gases and gas mixtures, which are specially configured for these specific applications. Semiconductor manufacture may use up to 30 different gases in all the various processes. The specifications are to ensure gas qualities and provide a clean and safe fuel gas to the consumers. The product gas must meet the heating values or Wobbe Indexes specifications, which are required to ensure optimum operation of gas turbines and combustion equipment to minimize emissions.
The type of cylinder and the application in which it is used are two of the main criteria when selecting the appropriate seals and guides. Applications are referred to as light duty, medium duty or heavy duty applications. The gas specification is the quality of gas specified under the Petroleum and Gas. (Production and Safety) Act 2004 or as approved by the Chief Gas Inspector is: Characteristics and components. Limit. Wobbe Index.
