ISO 6368:2021
Petroleum, petrochemical and natural gas industries — Dry gas sealing systems for axial, centrifugal, and rotary screw compressors and expanders

Standard No.

ISO 6368:2021

Release Date

2021

Published By

International Organization for Standardization (ISO)

Latest

ISO 6368:2021

Scope

This document is applicable to dry gas sealing systems for axial, centrifugal, and rotary screw compressors and expanders as described in ISO 10439 (all parts), ISO 10440-1 and ISO 10440-2. Although intended for use primarily in oil refineries, it is also applicable to petrochemical facilities, gas plants, liquefied natural gas (LNG) facilities and oil and gas production facilities. The information provided is designed to aid in the selection of the system that is most appropriate for the risks and circumstances involved in various installations. This document does not apply to other types of shaft seals such as clearance seals, restrictive ring seals or oil seals. This document is a supplement to API Std 692, 1st edition (2018), the requirements of which are applicable with the exceptions specified in this document.

ISO 6368:2021 Referenced Document

• API Std 692 Dry Gas Sealing Systems for Axial@ Centrifugal@ and Rotary Screw Compressors and Expanders (FIRST EDITION)
• ISO 10434 Bolted bonnet steel gate valves for the petroleum, petrochemical and allied industries
• ISO 10438-1 Petroleum, petrochemical and natural gas industries - Lubrication, shaft-sealing and control-oil systems and auxiliaries - Part 1: General requirements
• ISO 10438-2 Petroleum, petrochemical and natural gas industries - Lubrication, shaft-sealing and control-oil systems and auxiliaries - Part 2: Special-purpose oil systems
• ISO 10438-3 Petroleum, petrochemical and natural gas industries - Lubrication, shaft-sealing and control-oil systems and auxiliaries - Part 3: General-purpose oil systems
• ISO 10439-2 "Petroleum, petrochemical and natural gas industries - Axial and centrifugal compressors and expander-compressors - Part 2: Non-integrally geared centrifugal and axial compressors"
• ISO 10439-3 "Petroleum, petrochemical and natural gas industries - Axial and centrifugal compressors and expander-compressors - Part 3: Integrally geared centrifugal compressors"
• ISO 10440-1 Petroleum, petrochemical and natural gas industries - Rotary-type positive-displacement compressors - Part 1: Process compressors
• ISO 10497 Testing of valves — Fire type-testing requirements*， 2022-10-27 Update
• ISO 13706 Petroleum, petrochemical and natural gas industries - Air-cooled heat exchangers
• ISO 15761 Steel gate, globe and check valves for sizes DN 100 and smaller, for the petroleum and natural gas industries
• ISO 17292 Metal ball valves for petroleum, petrochemical and allied industries
• ISO 17945 Petroleum, petrochemical and natural gas industries - Metallic materials resistant to sulfide stress cracking in corrosive petroleum refining environments
• ISO 23251 Petroleum, petrochemical and natural gas industries — Pressure-relieving and depressuring systems

ISO 6368:2021 history

• 2021 ISO 6368:2021 Petroleum, petrochemical and natural gas industries — Dry gas sealing systems for axial, centrifugal, and rotary screw compressors and expanders