ISO 9803-1:2020
(Main)Vacuum technology - Mounting dimensions of pipeline fittings - Part 1: Non knife-edge flange type
Vacuum technology - Mounting dimensions of pipeline fittings - Part 1: Non knife-edge flange type
This document specifies mounting dimensions for vacuum pipeline fittings (elbows, tees and crosses) of non knife-edge flange for nominal bores from 10 mm to 250 mm of the R5 series.
Technique du vide — Dimensions de montage des raccords de conduit — Partie 1: Brides de type sans guillotine
General Information
- Status
- Published
- Publication Date
- 06-Jan-2020
- Technical Committee
- ISO/TC 112 - Vacuum technology
- Drafting Committee
- ISO/TC 112/WG 3 - Vacuum hardware
- Current Stage
- 9093 - International Standard confirmed
- Start Date
- 10-Jun-2025
- Completion Date
- 13-Dec-2025
Relations
- Effective Date
- 23-Apr-2020
Overview
ISO 9803-1:2020 is an international standard developed by ISO Technical Committee ISO/TC 112 focusing on vacuum technology. This standard specifies the mounting dimensions for vacuum pipeline fittings with non knife-edge flange types. It covers common fittings such as elbows, tees, and crosses for nominal bores ranging from 10 mm to 250 mm under the R5 series. The document ensures uniformity and interchangeability in vacuum system components by standardizing flange and pipeline fitting dimensions.
This second edition updates normative references and serves as a revision of the 2007 edition, maintaining relevance for manufacturers and users in vacuum technology applications.
Key Topics
- Scope and Application: Defines mounting dimensions exclusively for vacuum pipeline fittings with non knife-edge flanges, focusing on standard nominal bore sizes from 10 mm up to 250 mm.
- Non Knife-Edge Flange Definition: These flanges differ from knife-edge types by their flange construction and sealing methods as referenced in ISO 1609 and ISO 2861.
- Fittings Covered: Includes common vacuum pipeline components such as:
- Elbows
- Tees
- Crosses
- Mounting Dimensions: Detailed in Table 1 with precise measurements for flange edge dimensions, length (H), and tolerances on perpendicularity and parallelism.
- Flange Details: Flange dimensions comply with ISO 1609 and ISO 2861, including bolt hole positioning, which is essential for proper assembly and sealing.
- Bolt Hole Positioning: Calculated based on the number of bolt holes, ensuring consistency across vacuum pipeline fittings.
Applications
ISO 9803-1:2020 is critical for industries and applications that require vacuum systems with reliable and standardized connections. These include:
- Vacuum manufacturing processes: Semiconductor fabrication, coating, and thin-film deposition industries require precise vacuum piping configurations.
- Scientific research: Standardized vacuum fittings for laboratory vacuum systems enable compatibility and easy maintenance.
- Pharmaceutical and chemical processing: Vacuum pipelines with consistent flange mounting facilitate the integrity of vacuum environments in sterile and controlled conditions.
- HVAC and industrial vacuum systems: Use of non knife-edge flanges is common for robust and reliable vacuum transport lines.
- Maintenance and upgrade: Standardized dimensions simplify repairs, replacements, and system expansions by ensuring component compatibility.
By conforming to ISO 9803-1:2020, manufacturers and end users ensure high-quality vacuum pipeline connections that meet international best practices, reduce downtime, and improve operational safety.
Related Standards
To fully understand and implement ISO 9803-1:2020, familiarity with the following related ISO standards is recommended:
- ISO 1609 - Vacuum technology - Dimensions of non knife-edge flanges: Provides detailed specifications for flange dimensions referenced in this standard.
- ISO 2861 - Vacuum technology - Dimensions of clamped-type quick-release couplings: Specifies coupling dimensions compatible with the flanges described in ISO 9803-1.
- ISO 3669 - Vacuum technology - Dimensions of knife-edge flanges: Relevant for understanding the contrasting knife-edge flange types not covered in this part but detailed in ISO 9803-2.
- ISO 9803-2 - Vacuum technology - Mounting dimensions of pipeline fittings - Part 2: Knife-edge flange type: Complements Part 1 by covering fittings with knife-edge flanges.
These standards collectively support a comprehensive framework for vacuum pipeline fitting design and installation, ensuring interoperability and safety in vacuum systems worldwide.
By adhering to ISO 9803-1:2020, stakeholders in vacuum technology maintain consistency, reliability, and precision in mounting dimensions for non knife-edge flange pipeline fittings, contributing to the overall efficiency and safety of vacuum installations.
Frequently Asked Questions
ISO 9803-1:2020 is a standard published by the International Organization for Standardization (ISO). Its full title is "Vacuum technology - Mounting dimensions of pipeline fittings - Part 1: Non knife-edge flange type". This standard covers: This document specifies mounting dimensions for vacuum pipeline fittings (elbows, tees and crosses) of non knife-edge flange for nominal bores from 10 mm to 250 mm of the R5 series.
This document specifies mounting dimensions for vacuum pipeline fittings (elbows, tees and crosses) of non knife-edge flange for nominal bores from 10 mm to 250 mm of the R5 series.
ISO 9803-1:2020 is classified under the following ICS (International Classification for Standards) categories: 23.160 - Vacuum technology. The ICS classification helps identify the subject area and facilitates finding related standards.
ISO 9803-1:2020 has the following relationships with other standards: It is inter standard links to ISO 9803-1:2007. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
ISO 9803-1:2020 is available in PDF format for immediate download after purchase. The document can be added to your cart and obtained through the secure checkout process. Digital delivery ensures instant access to the complete standard document.
Standards Content (Sample)
INTERNATIONAL ISO
STANDARD 9803-1
Second edition
2020-01
Vacuum technology — Mounting
dimensions of pipeline fittings —
Part 1:
Non knife-edge flange type
Technique du vide — Dimensions de montage des raccords de
conduit —
Partie 1: Brides de type sans guillotine
Reference number
©
ISO 2020
© ISO 2020
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ii © ISO 2020 – All rights reserved
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Requirements . 1
Bibliography . 4
Foreword
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