GOST 3326-86 PDF
Name in English:
GOST 3326-86
Name in Russian:
ГОСТ 3326-86
Stop valves, check lift and swing valves. Overall dimensions
Full title and description
GOST 3326-86 — Клапаны запорные, клапаны и затворы обратные. Строительные длины (English: Stop valves, check (lift and swing) valves — Overall (face-to-face) dimensions). The standard specifies dimensional (construction/face-to-face) lengths for general-purpose industrial stop valves and check valves.
Abstract
This GOST establishes required construction (face-to-face) lengths and related dimensional references for stop valves and check valves of lift and swing types used in industrial pipeline systems. It defines the range of valves covered and explicitly excludes certain specialty types (diaphragm valves, lined/fitted valves, valves with solenoid drives, special-purpose and nuclear‑power plant valves). The document is intended to harmonize dimensions between manufacturers and users to ensure interchangeability.
General information
- Status: Active / действует.
- Publication date: Approved 27 February 1986; introduced into force 1 July 1987 (often cited as GOST 3326-86, 1987).
- Publisher: Gosstandart (USSR approval), published and distributed through national standards publishers / repositories.
- ICS / categories: Industrial valves, hydraulic and pneumatic systems — e.g., ICS/OKS classification entries for valves (23.060 and related groups).
- Edition / version: Original designation GOST 3326-86 (replaced earlier GOST 3326-69).
- Number of pages: Listed as approximately 9–11 pages depending on the publisher/translation edition.
Scope
The standard applies to general-purpose industrial pipeline stop valves and check valves (lift and swing types) and sets their construction (face-to-face) lengths and related dimensional requirements to ensure compatibility and interchangeability. It does not apply to diaphragm valves, lined (futered) valves, valves with electromagnetic drives, special-purpose valves, or valves intended for nuclear power stations. The scope is aimed at designers, manufacturers and procurement for mechanical and piping systems.
Key topics and requirements
- Definition of construction (face-to-face) lengths for stop valves and lift/swing check valves for specified nominal sizes.
- Dimensional tables and permissible variations for different valve types and end connections (as applicable within the standard’s domain).
- Exclusions listing (diaphragm, lined, solenoid-driven, special-purpose and nuclear‑grade valves) to limit applicability.
- Requirements to ensure interchangeability between manufacturers (uniform face-to-face dimensions and referenced nominal designations).
- Reference to previous edition it replaces (GOST 3326-69) and alignment with related valve and piping standards.
Typical use and users
Primary users are valve manufacturers, piping and mechanical design engineers, plant engineers, procurement and quality departments, and standards librarians who need consistent dimensional requirements for selection, production and installation of stop and check valves in industrial piping systems. The standard is used where interchangeability and standard face-to-face dimensions are required.
Related standards
GOST 3326-86 is part of the family of GOST valve and pipeline component standards. It replaces GOST 3326-69 and is commonly referenced alongside other valve and dimensional standards (examples of related GOSTs include standards on gate/plug/ball valves and other valve series such as GOST 12547, GOST 21804, GOST 28343 and similar documents that cover performance, testing or other dimensional series).
Keywords
GOST 3326-86; stop valves; check valves; lift check; swing check; construction length; face-to-face dimensions; valve dimensions; interchangeability; pipeline valves; valve standards.
FAQ
Q: What is this standard?
A: GOST 3326-86 is a Soviet/Russian national standard that specifies construction (face-to-face) lengths and related dimensional rules for stop valves and lift/swing check valves used in general industrial piping systems.
Q: What does it cover?
A: It covers dimensional (construction/face-to-face) lengths and associated dimensional requirements for stop (shut-off) valves and check (lift and swing) valves, and lists types of valves excluded from its scope (diaphragm, lined, solenoid-driven, special-purpose, and nuclear‑plant valves).
Q: Who typically uses it?
A: Valve manufacturers, piping/mechanical designers, plant engineers, procurement specialists and testing/quality personnel use the standard to ensure valves meet common dimensional requirements for installation and interchangeability.
Q: Is it current or superseded?
A: Listed sources indicate GOST 3326-86 remains an active standard in GOST catalogs and databases; it superseded the earlier GOST 3326-69 when introduced. Users should verify current national catalog entries for the latest status before relying on the standard for regulatory or safety-critical work.
Q: Is it part of a series?
A: Yes — it is part of the broader body of GOST standards covering pipeline valves, components and dimensional series; other GOSTs address related valve types, testing, and materials. Equipment and design standards for valves are commonly published as complementary documents in the same classification groups.
Q: What are the key keywords?
A: Stop valves; check valves; construction length; face-to-face; valve dimensions; lift check; swing check; GOST; interchangeability.