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Compressed Gas Association , 09/16/2020
Publisher: CGA
File Format: PDF
$63.00$126.00
This standard contains minimum requirements for locating/siting, selecting equipment, installing, starting up, maintaining, and removing bulk inert gas supply systems.
A bulk inert gas supply system is one that contains greater than 20 000 scf (566 m3) of inert gas. Requirements of this standard are limited to systems operating up to 15 000 psi (103.4 MPa).
Two types of bulk inert gas supply systems are covered in this standard: liquid and gaseous.
A liquid system is one where the inert gas is delivered to the supply system and stored on-site in liquid form. The inert gas is supplied in either liquid or gaseous form to the customer's requirement. When required, pumps are used to increase the gas pressure before it is supplied to the customer. When required, coded vessels are used to store the gas before it is supplied to the customer. The system is a bulk liquid system instead of a bulk gaseous system because the gas is delivered from the supplier to the storage of the system in liquid form.
A gaseous system is one where an inert gas is delivered to the supply system, stored, and is supplied to the customer's requirement in gaseous form.
This standard applies to inert gas supply systems containing any of the following equipment. Not all inert gas systems include all the equipment listed.
Inert gas supply systems include:
The bulk inert supply system terminates at the source valve where the gas or liquid supply first enters the supply line.
This standard does not apply to carbon dioxide systems. For additional requirements on bulk inert gas systems at health care facilities, see CGA M-1, Standard for Medical Gas Supply Systems at Health Care Facilities (an American National Standard), NFPA 55, Compressed Gases and Cryogenic Fluids Code, and NFPA 99, Health Care Facilities Code. Bulk carbon dioxide system requirements are found in NFPA 55 and CGA G-6.1, Standard for Insulated Liquid Carbon Dioxide Systems at Consumer Sites.
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