ISO 2861-1-1974 rus PDF

Full title and description

St ISO 2861-1-1974 (Ст ISO 2861-1-1974) — Vacuum technology — Quick-release couplings — Dimensions — Part 1: Clamped type. This is the original ISO International Standard (edition 1, 1974) that specifies dimensional details for clamped-type quick-release couplings used in vacuum systems, including associated O-rings and their carriers.

Abstract

ISO 2861-1:1974 defines the dimensions of clamped-type quick-release couplings for vacuum technology and the dimensions of the O‑rings and carriers used with these couplings to ensure vacuum tightness. The document is short (2 pages) and gives figures and tables with the required dimensional data.

General information

• Status: Withdrawn / Withdrawn and replaced by later editions.
• Publication date: August 1974 (1974-08).
• Publisher: International Organization for Standardization (ISO).
• ICS / categories: 23.160 (Vacuum technology).
• Edition / version: Edition 1 (1974).
• Number of pages: 2 pages.

Scope

Specifies dimensional requirements for clamped-type quick-release couplings used in vacuum systems, and gives corresponding sizes for O‑rings and their carriers which ensure vacuum-tight joints. The standard provides the geometry, nominal sizes and tolerances required for interchangeability of clamped quick-release vacuum fittings.

Key topics and requirements

• Dimensional specifications for clamped-type quick-release couplings (profiles, faces, and mating geometry).
• Standardized sizes and tolerances to ensure interchangeability between manufacturers.
• Dimensions and seating details for O‑rings and O‑ring carriers used to achieve vacuum tightness.
• Reference figures and tables that show part geometry and critical dimensions.
• Compatibility notes with other coupling types in the ISO 2861 series (e.g., screwed type covered in the series).

Typical use and users

Used by vacuum equipment designers, manufacturers of vacuum flanges and quick‑release couplings, laboratory and research facilities specifying vacuum hardware, maintenance and repair technicians, and suppliers of seals and O‑rings who need standardized dimensions for compatible components. Engineers use it to ensure interchangeability and reliable vacuum joints in experimental and industrial vacuum systems.

Related standards

ISO 2861-1:1974 is part of the ISO 2861 series on quick‑release couplings. It was revised and consolidated in later ISO publications (ISO 2861:2013, later editions such as ISO 2861:2020 in the series), and other parts of the series cover screwed‑type couplings (e.g., ISO 2861-2). Users should consult the current ISO 2861 edition for up-to-date dimensional requirements.

Keywords

vacuum technology; quick‑release coupling; clamped coupling; KF/KV (common informal names); O‑ring; O‑ring carrier; dimensions; interchangeability; ISO 2861; coupling standards.

FAQ

Q: What is this standard?

A: ISO 2861-1:1974 is an international standard that specified the dimensions of clamped-type quick-release couplings used in vacuum technology, including the associated O‑rings and carriers.

Q: What does it cover?

A: It covers the geometry, nominal sizes and tolerances of clamped quick-release vacuum couplings and the dimensions of sealing elements necessary to obtain vacuum tightness — presented as figures and tables.

Q: Who typically uses it?

A: Vacuum system designers, manufacturers of vacuum fittings, laboratory engineers, maintenance technicians, and seal/O‑ring suppliers use this standard to ensure component interchangeability and reliable seals in vacuum assemblies.

Q: Is it current or superseded?

A: ISO 2861-1:1974 has been withdrawn and replaced by later consolidated editions in the ISO 2861 series (for example ISO 2861:2013 and subsequent revisions). Users should refer to the latest ISO 2861 publication for current requirements.

Q: Is it part of a series?

A: Yes — ISO 2861 is a multi‑part series covering quick‑release couplings used in vacuum technology (clamped type, screwed type, etc.). Part 1 addressed clamped type; other parts (for example Part 2) addressed screwed types; later work consolidated and updated the series.

Q: What are the key keywords?

A: Vacuum technology, quick‑release coupling, clamped type, O‑ring, dimensions, interchangeability, ISO 2861.