GOST 22445-88 PDF

Full title and description

GOST 22445-88 — "Затворы обратные. Основные параметры" (English: "Check valves. Basic parameters"). This interstate (GOST) standard defines the basic parameters and sizing/rating conventions for industrial check (non‑return) valves used in pipeline systems.

Abstract

GOST 22445-88 establishes the principal technical parameters (nominal diameters, nominal pressures, temperature limits, mass tables and basic dimensional/connection characteristics) for check valves intended for industrial pipelines and general engineering applications. It gives reference parameters used for selection, design coordination and procurement of check valves across oil, gas, chemical and power industries.

General information

• Status: Active / in force.
• Publication date: Approved by the State Committee for Standards (Gosstandart USSR) 14 November 1988; brought into effect 1 January 1990.
• Publisher: State Committee for Standards of the USSR (Gosstandart) — interstate (Межгосударственный) GOST publication.
• ICS / categories: 23.060.30 (Hydraulic and pneumatic systems and components; pipeline valves and fittings).
• Edition / version: GOST 22445-88 (original 1988 interstate edition; designation year in standard number indicates the 1988 edition).
• Number of pages: Sources vary — some official distributors list 11 pages while other repositories show 7 pages (document form/packaging differences). See note below.

Scope

This standard applies to industrial pipeline check valves (non‑return valves, including swing/check gate types described in the standard) intended to prevent reverse flow of process media. Parameters are specified for valves with nominal pressures from about 0.25 MPa up to 25 MPa and nominal diameters covering small to very large pipeline sizes (typical published ranges extend from DN 15 up to DN 2200), and for operating temperatures up to approximately 873 K (600 °C) where indicated. It is intended for manufacturers, designers and purchasers of pipeline valves in oil, gas, chemical and heat‑power systems.

Key topics and requirements

• Definition of basic parameters for check valves: nominal diameter (DN), nominal pressure (PN), and temperature limits.
• Reference dimensional and mass tables for common materials and connection types (flanged, butt‑weld, threaded, etc.).
• Ranges of nominal pressure and diameter (example published ranges: PN ≈ 0.25–25 MPa; DN ≈ 15–2200 mm).
• Compatibility and correspondence notes to related SEV/CIS standards (interoperability with ST СЭВ 4367 in listed tables).
• Guidance for mass (weight) limits of non‑shock action check valves with conical seats for different materials and pressure classes.

Typical use and users

Primary users are valve manufacturers, piping and pipeline designers, procurement specialists and inspectors in oil & gas, petrochemical, power generation, heating networks and industrial process plants. The standard is used for product specification, catalogue data alignment, design coordination (flange and connection matching), and compliance checks during procurement and manufacturing.

Related standards

The standard replaces (in part) earlier GOST 22445-77 for certain types of swing check valves and is published with references to related CIS/SEV documents (for example ST СЭВ 4367). For broader valve and pipeline fittings coordination consult other valve standards and GOSTs covering flanges, pressure classes and testing procedures.

Keywords

check valve, non‑return valve, swing check, gate check, nominal pressure, nominal diameter, PN, DN, pipeline valve, GOST 22445-88, valve parameters, mass table.

FAQ

Q: What is this standard?

A: GOST 22445-88 is an interstate (GOST) standard titled "Затворы обратные. Основные параметры" — in English "Check valves. Basic parameters" that defines the principal sizing and parameter conventions for industrial check (non‑return) valves.

Q: What does it cover?

A: It covers basic parameters (DN, PN, temperature limits), reference dimensional/mass tables for common connection and material options, and reference values for selection and coordination of check valves used in pipelines. Typical numeric ranges published with the standard include nominal pressures roughly 0.25–25 MPa and nominal diameters from small (DN 15) up to very large sizes (DN 2200) and temperatures up to about 873 K (600 °C) where applicable.

Q: Who typically uses it?

A: Valve and pipeline equipment manufacturers, design engineers (piping, process, mechanical), procurement/specification teams, inspection and conformity bodies in sectors such as oil & gas, petrochemical, power and industrial process plants.

Q: Is it current or superseded?

A: The standard is listed as active/in force in current Russian and CIS document repositories and distributor catalogs. It was approved 14 November 1988 and came into effect 1 January 1990; it replaces, in part, the older GOST 22445-77 for certain valve types. Users should verify locally whether a national adoption or later revision (GOST R or other normative acts) affects applicability in a specific country or project.

Q: Is it part of a series?

A: It belongs to the family of pipeline and valve GOST standards (ICS 23.060.30) and references related CIS/SEV documents (for example ST СЭВ 4367 for table correspondence). It is typically used alongside standards for flanges, testing, materials and actuator/interface standards for valves.

Q: What are the key keywords?

A: Check valve; non‑return valve; DN; PN; nominal diameter; nominal pressure; pipeline valve; valve basic parameters; GOST 22445-88.