ISO 10439-4-2015 PDF

Full title and description

ISO 10439-4:2015 — Petroleum, petrochemical and natural gas industries — Axial and centrifugal compressors and expander-compressors — Part 4: Expander-compressors. This part of ISO 10439 specifies minimum requirements and gives recommendations specifically for expander-compressors used in special-purpose applications handling gas or process air in the petroleum, petrochemical and natural gas industries; it is intended to be used together with the general requirements given in ISO 10439-1:2015.

Abstract

ISO 10439-4:2015 defines requirements and recommendations for axial compressors, single-shaft and integrally geared centrifugal compressors and expander-compressors where the focus of Part 4 is the expander-compressor category. The standard supplements the general provisions in ISO 10439‑1:2015 and addresses equipment selection, design considerations, testing and documentation relevant to expander-compressors used in petroleum, petrochemical and natural gas processing.

General information

• Status: Published.
• Publication date: February 2015 (corrected version noted April 2015).
• Publisher: International Organization for Standardization (ISO).
• ICS / categories: 71.120.99; 75.180.20.
• Edition / version: Edition 1 (2015).
• Number of pages: 52 pages (ISO published PDF); national/adopted versions (EN/BS/DIN/AENOR) may show larger page counts due to national forewords and annexes (commonly reported in the 52–64 page range).

Scope

ISO 10439-4:2015 applies to expander-compressors used in petroleum, petrochemical and natural gas industries where special-purpose gas or process‑air handling is required. It establishes minimum requirements and provides recommendations covering design, materials, fabrication, inspection, testing, marking and documentation for expander-compressors, and is written to be used in conjunction with ISO 10439‑1:2015 (General requirements). It does not replace industry- or application-specific safety regulations and excludes equipment classes specifically covered by other standards.

Key topics and requirements

• Definitions and classification of expander-compressors and equivalent terminology for axial and centrifugal types.
• Design and materials requirements including mechanical integrity, corrosion resistance and temperature limits appropriate for hydrocarbon and process gases.
• Manufacturing, inspection and non‑destructive testing expectations to verify construction and material conformity.
• Performance testing and acceptance tests (factory and site tests) including test conditions, measurement methods and reporting.
• Documentation and marking requirements: datasheets, operating limits, maintenance instructions and traceability.
• Requirements for safe handling, preparation for shipment and preservation to avoid damage during transport and storage.

Typical use and users

Used by engineering procurement and construction (EPC) firms, compressor manufacturers, plant operators, maintenance teams and technical purchasers in the petroleum, petrochemical and natural gas sectors to specify, procure, design and verify expander-compressors for process applications. It is particularly relevant where gas energy recovery, process expansion or combined expansion/compression machines are selected or specified.

Related standards

ISO 10439-4:2015 is one part of the ISO 10439 series which replaced ISO 10439:2002. Relevant related documents include ISO 10439-1:2015 (General requirements), ISO 10439-2:2015 (Non-integrally geared centrifugal and axial compressors) and ISO 10439-3:2015 (Integrally geared centrifugal compressors). National or regional adoptions (for example EN ISO or DIN/BS adoptions) exist and may include national forewords/annexes.

Keywords

expander-compressor, centrifugal compressor, axial compressor, petroleum industry, petrochemical, natural gas, compressor testing, compressor design, ISO 10439, process air, performance testing

FAQ

Q: What is this standard?

A: ISO 10439-4:2015 is the part of the ISO 10439 series that specifies minimum requirements and recommendations specifically for expander-compressors used in petroleum, petrochemical and natural gas industries.

Q: What does it cover?

A: It covers classification, materials, design considerations, manufacturing and inspection requirements, performance and acceptance testing, marking and documentation, and shipment/preservation provisions for expander-compressors; it is intended to be used with ISO 10439‑1:2015 which contains the general requirements for the series.

Q: Who typically uses it?

A: Compressor manufacturers, design and engineering firms, plant operators, procurement specialists and maintenance personnel in the petroleum, petrochemical and natural gas sectors use it to specify, build, test and accept expander-compressors.

Q: Is it current or superseded?

A: ISO 10439-4:2015 was published in February 2015 (with a corrected version noted in April 2015); the 2015 parts of ISO 10439 replaced ISO 10439:2002. The ISO entries indicate the 2015 series was subject to the standard 5‑year review cycle and the published parts were reviewed/confirmed (ISO review status noted). Users should verify the current status with the national standards body or ISO for any subsequent revisions or amendments.

Q: Is it part of a series?

A: Yes — ISO 10439 is a multi‑part standard. Part 1 covers general requirements (ISO 10439-1:2015) and Parts 2, 3 and 4 cover different compressor categories (non-integrally geared, integrally geared and expander-compressors respectively).

Q: What are the key keywords?

A: expander-compressor; centrifugal compressor; axial compressor; petroleum; petrochemical; natural gas; compressor testing; ISO 10439.