GOST 28343-89 PDF

Full title and description

GOST 28343-89 — "Краны шаровые стальные фланцевые. Технические требования" (English: Flanged steel ball valves. Technical requirements). The standard establishes technical requirements, dimensional data, testing and marking information for flanged steel ball valves intended for pipeline and industrial use.

Abstract

Standard GOST 28343-89 specifies requirements for flanged steel ball valves with nominal pressures from 1 to 10 MPa and nominal diameters (Du / DN) from 10 to 500 mm intended for new design and industrial applications. It incorporates and is aligned with ISO 7121 (1986) while adding national / interstate particulars for manufacture, testing, marking and ordering.

General information

• Status: Active / in force (registered as an interstate (GOST) standard reused and reissued in national collections).
• Publication date: Adopted 1989 (designation suffix -89); introduced into force 1 January 1992; later reissues/republications (e.g., 2005 reissue).
• Publisher: Originally issued by the State Committee for Standards of the USSR (Gosstandart) as a межгосударственный стандарт; maintained in later national catalogues (reissues by national standards libraries).
• ICS / categories: 23.060.20 (Ball and plug valves); GOST classifier group G18 (industrial valves / pipeline fittings).
• Edition / version: Original designation GOST 28343-89 (1989); text effective 1992 with later republication/reissue editions (reprinted collections 2005 and subsequent catalogue updates).
• Number of pages: ~10 pages (typical published text / PDF reprints count 10 pages).

Scope

This standard applies to flanged steel ball valves designed for nominal pressure ratings Ru from 1 to 10 MPa (10 to 100 kgf/cm²) and nominal bores Du (DN) from 10 to 500 mm, intended for new design and general industrial pipeline use. It covers dimensional requirements, materials and construction principles, pressure and tightness testing, marking, documentation and information to be specified when ordering.

Key topics and requirements

• Nominal size and pressure ranges (Du / DN 10–500; Ru 1–10 MPa) and corresponding dimensional tables for bodies and ports.
• Designation of pressure classes and correspondence with flange and bore dimensions (alignment with ISO dimensional practice).
• Material and construction requirements for steel valve bodies, ball elements, seats and seals appropriate for rated pressures and service conditions.
• Testing requirements including pressure testing and tightness tests (referenced normative procedures for valve testing).
• Marking, packaging and data to be provided by the manufacturer and purchaser (ordering information, material designation, nominal size, pressure rating, flow characteristics).
• Normative references and cross‑references to international standards (ISO 7121 and related ISO standards for threads, flanges, nominal sizes and testing).

Typical use and users

Primary users are valve manufacturers, design and engineering departments for pipelines and process plants (oil & gas, petrochemical, power generation, utilities), procurement and specification authors, testing laboratories and conformity assessment bodies. The standard is used to specify product design, acceptance testing and ordering data for flanged steel ball valves in industrial projects.

Related standards

GOST 28343-89 is aligned to and cites ISO 7121 (Flanged steel ball valves, 1986) and references multiple ISO standards and related GOSTs dealing with threads, nominal sizes, flange specifications and valve testing (examples of normative references in the standard: ISO 7‑1, ISO 261, ISO 263, ISO 5208, ISO 5209, ISO 5752, ISO 6708, ISO 7005‑1, ISO 7268). It sits within the broader valve standards family (ISO/TC 153 and national valve GOSTs).

Keywords

flanged ball valve; steel ball valve; pipeline valve; DN; Ru; nominal pressure; valve testing; ISO 7121; GOST; valve dimensions; marking; technical requirements.

FAQ

Q: What is this standard?

A: GOST 28343-89 is an interstate (GOST) standard that defines technical requirements for flanged steel ball valves, including dimensions, materials, testing and marking.

Q: What does it cover?

A: It covers flanged steel ball valves with nominal pressures from 1 to 10 MPa and nominal diameters DN 10–500 mm, specifying dimensional data, constructional requirements, tests for pressure and tightness, marking, and ordering information.

Q: Who typically uses it?

A: Valve manufacturers, design engineers, procurement/specification teams, testing labs and conformity assessment bodies involved in selecting, producing or accepting flanged steel ball valves for industrial piping systems.

Q: Is it current or superseded?

A: The GOST text (designation 28343-89) remains catalogued as active in national/intrastate collections and is used in practice (with reissues). It is explicitly based on ISO 7121 (1986); users should check for any later revisions or national amendments when strict up‑to‑date compliance is required.

Q: Is it part of a series?

A: It belongs to the family of valve standards (ICS 23.060.20) and is related to other GOST/ISO documents covering valve dimensions, flange standards and testing methods; it is often published alongside other hydraulic/pneumatic and valve standards in GOST compilations.

Q: What are the key keywords?

A: flanged steel ball valves, ball valve, DN, Ru, valve testing, ISO 7121, GOST 28343-89, valve dimensions, marking.