VSN 361-85 PDF

Full title and description

VSN 361-85 (ВСН 361-85) — Installation of technological (process) equipment on foundations. The document sets departmental requirements and practical guidance for siting, anchoring and aligning industrial machines, mechanisms and apparatus on foundation structures.

Abstract

VSN 361-85 is a Soviet departmental building code issued in 1985 that describes procedures, design requirements and acceptance criteria for mounting process equipment to foundations at industrial facilities. It covers methods of fixing with foundation bolts, tolerances for positioning and leveling, preparatory work on foundations, and rules for inspection and acceptance of installation works; it also specifies which types of supports and installation methods are excluded from its requirements.

General information

• Status: Effective / active departmental code (listed as effective in catalogues of departmental construction norms).
• Publication date: 22 March 1985 (approved 22.03.1985).
• Publisher: Approved by the USSR Ministry responsible for installation works (departmental building norms / Ministry of Installation).
• ICS / categories: Civil construction / foundations — classifier entries related to foundations and industrial construction (ICS area: 93 — Civil engineering; detailed classifier references to foundations).
• Edition / version: Original issue — VSN 361-85 (1985).
• Number of pages: 28–29 pages (catalogue records show 28 or 29 pages depending on edition/format).

Scope

Applies to installation of technological/process equipment of industrial enterprises and establishes requirements for design, execution and acceptance of work when installing machines, mechanisms and apparatus (or their base parts, assemblies and blocks) into their design positions on foundations. The rules do not apply to equipment that is not fixed with foundation bolts, to installations that rely on height‑adjustable shims adjusted during operation, or to special supports (vibration-, electrical- or heat‑insulating).

Key topics and requirements

• Requirements for design documentation and preparation of foundation interfaces for equipment mounting (hole positions, embedded parts, tolerances).
• Procedures for setting, anchoring and aligning equipment on foundations with foundation bolts.
• Permitted tolerances for positional and leveling deviations and methods for measuring/adjusting them.
• Acceptance criteria and inspection procedures for installation works, including tests and marking of installed units.
• Exclusions and special cases: equipment without foundation bolts, adjustable shim supports, and special insulating/vibration supports are outside the code’s scope.
• Cross‑references and normative links to relevant GOSTs, SNiP and other technical instructions (foundation bolt standards, design drawing requirements, tools and measurement systems).

Typical use and users

Used by design engineers, installation contractors, site supervisors, factory installation teams, commissioning engineers and quality/acceptance inspectors involved in placing process equipment (pumps, compressors, vessels, rotating machinery, production lines) onto foundations at industrial plants. It is referenced when preparing mounting drawings, specifying foundation anchors and defining acceptance tests for installed equipment.

Related standards

VSN 361-85 references and is used alongside a number of national standards and construction norms, for example: GOST 24379 (foundation bolts), GOST 24444-80 (industrial equipment — general installation requirements), GOSTs on fasteners and drawing documentation, and relevant SNiP rules for industrial structures and acceptance of completed works (SNiP 2.09.03-85, SNiP 3.01.03-84, etc.). These referenced documents provide detailed specifications for bolts, fasteners, tolerances and survey/acceptance procedures.

Keywords

VSN 361-85; ВСН 361-85; installation of equipment; foundations; foundation bolts; alignment; leveling tolerances; industrial equipment mounting; acceptance criteria; GOST; SNiP.

FAQ

Q: What is this standard?

A: VSN 361-85 is a Soviet departmental building norm from 1985 that prescribes requirements and procedures for installing technological/process equipment on foundations at industrial sites.

Q: What does it cover?

A: It covers design and preparatory requirements for foundations, methods for fixing equipment with foundation bolts, positional and leveling tolerances, inspection and acceptance procedures for installation works, and specifies installation cases that are excluded from its requirements.

Q: Who typically uses it?

A: Design offices, installation contractors, site supervisors, commissioning and maintenance engineers, and quality/acceptance inspectors working on industrial equipment installation and commissioning.

Q: Is it current or superseded?

A: Catalogue records list VSN 361-85 as an effective departmental code; however, because building norms and regulations may be updated or replaced by newer national standards or sectoral rules, users should verify any current national/regulatory requirements applicable to their project before relying solely on this 1985 document.

Q: Is it part of a series?

A: Yes — VSN documents are a class of departmental building norms; VSN 361-85 is one item in a wider set of VSН/ВСН codes covering installation and special construction works and is often referenced alongside other VSNs and technical instructions for installation projects.

Q: What are the key keywords?

A: Installation, foundations, foundation bolts, equipment alignment, acceptance criteria, VSN 361-85, ВСН 361-85, industrial equipment mounting.