ISO 10438-4-2007 PDF

Full title and description

Petroleum, petrochemical and natural gas industries — Lubrication, shaft-sealing and control-oil systems and auxiliaries — Part 4: Self-acting gas seal support systems (ISO 10438-4:2007). This part specifies requirements for support systems for self-acting gas seals (dry gas seals) used on rotating equipment such as compressors, pumps, gears and drivers.

Abstract

ISO 10438-4:2007 (Edition 2, December 2007) — used together with ISO 10438-1 — defines functional and design requirements for dry-gas-seal support systems (gas supply, filtration, piping, instrumentation, control, testing and vendor data). The 2007 edition has been withdrawn and the subject matter has subsequently been revised (see ISO 6368:2021).

General information

• Status: Withdrawn / Withdrawn (Edition 2, 2007).
• Publication date: December 2007.
• Publisher: International Organization for Standardization (ISO).
• ICS / categories: 75.180.20 (Petroleum, petrochemical and natural gas industries).
• Edition / version: Edition 2 (2007).
• Number of pages: 30 pages (ISO published edition).

Scope

This part of ISO 10438 specifies requirements for the selection, basic design and installation of support systems for self-acting gas (dry gas) seals, including gas filters, transfer valves, condensate traps, piping and tubing, instrumentation, control and electrical arrangements, inspection, testing and vendor data. It is intended for use in the petroleum, petrochemical and natural gas industries and is to be used in conjunction with ISO 10438-1.

Key topics and requirements

• System selection and basic design principles for dry gas seal support systems (pressure control, gas supply and safety considerations).
• Gas filtration and conditioning requirements (filters, condensate traps, drains).
• Transfer valves and piping/tubing design, including materials and routing considerations.
• Instrumentation, alarms, shutdown logic and electrical interfaces for seal support systems.
• Inspection, factory testing, preparation for shipment and acceptance testing.
• Vendor documentation requirements: proposals, datasheets, spare parts lists and piping & instrument diagrams (P&IDs).

Typical use and users

Primary users include rotating-equipment engineers, compressor and pump manufacturers, process and mechanical engineers in the petroleum/petrochemical/natural-gas sectors, maintenance and reliability teams, third-party inspectors and procurement/specification authors preparing equipment purchase specifications for dry gas seal installations.

Related standards

ISO 10438-4:2007 is part of the ISO 10438 series; it is intended to be used with ISO 10438-1 (general requirements). The 2007 part 4 has been withdrawn and related guidance has been updated in ISO 6368:2021. Other related standards referenced in the body include ISO 10439 and ISO 10440-1 (standards describing dry gas seals and related machines).

Keywords

dry gas seal, self-acting gas seal, seal support system, lubrication systems, shaft-sealing, control-oil, compressors, P&ID, instrumentation, filtration, ISO 10438-4, petroleum industry.

FAQ

Q: What is this standard?

A: ISO 10438-4:2007 is Part 4 of the ISO 10438 series covering support systems for self-acting (dry) gas seals used on rotating equipment in the petroleum, petrochemical and natural gas industries.

Q: What does it cover?

A: It covers selection and basic design of gas-seal support systems including gas supply and conditioning (filters, traps), piping and tubing, instrumentation, alarms and shutdowns, inspection and factory testing, and required vendor documentation.

Q: Who typically uses it?

A: Engineers and technical staff involved with compressors, pumps and other rotating equipment in the petroleum, petrochemical and natural gas sectors; equipment manufacturers; maintenance/reliability teams; and procurement/specification writers.

Q: Is it current or superseded?

A: ISO 10438-4:2007 has been withdrawn. The subject has been revised and a newer related standard ISO 6368:2021 is available as the replacement/reference. Users should refer to the 2021 revision for current requirements.

Q: Is it part of a series?

A: Yes — ISO 10438 is a multi-part series covering lubrication, shaft-sealing and control-oil systems and auxiliaries; Part 1 provides general requirements and Part 4 specifically addressed self-acting gas seal support systems.

Q: What are the key keywords?

A: Dry gas seal, self-acting gas seal, seal support system, filtration, instrumentation, piping, P&ID, petroleum industry, ISO 10438, ISO 6368.