GOST 6942.5-80 PDF

Full title and description

GOST 6942.5-80 — "Трубы чугунные канализационные и фасонные части к ним. Патрубки компенсационные. Конструкция и размеры" / "Cast iron waste pipes and fittings. Compensation branch pipes. Construction and dimensions". Specifies the design and dimensional requirements for compensation (expansion/connection) branch fittings used with cast-iron waste (sanitary) pipes for internal building drainage systems.

Abstract

This standard defines constructional forms, principal dimensions, nominal sizes and tolerances for compensation branch pipes (compensation fittings) intended for use with cast-iron sanitary waste pipes in building internal sewerage systems. It was issued as part of the GOST 6942 series covering cast-iron waste pipes and fittings and establishes compatibility with the rest of the series.

General information

• Status: Superseded / withdrawn (replaced by GOST 6942-98).
• Publication date: Approved 4 September 1980; introduced into effect 1 January 1982; withdrawn 1 January 1999.
• Publisher: State standards authority of the USSR (Gosstandart) / issued under the authority of Gosstroy USSR.
• ICS / categories: 91.140 (Drainage systems / installations in buildings); Russian classifier: 91.140.80 (drainage systems).
• Edition / version: Original 1980 edition (designation suffix "-80").
• Number of pages: Short single-part sheet (registry entry indicates 1 page / sheet with drawings and tables).

Scope

The standard applies to compensation branch pipes (патрубки компенсационные) manufactured for connection to cast-iron waste (sanitary) pipes used in internal building sewerage and drainage systems. It covers shape, principal dimensions, nominal diameters, constructional types and basic assembly interfaces so that fittings are interchangeable within the GOST 6942 series.

Key topics and requirements

• Definition and intended use of compensation branch pipes for cast-iron waste systems.
• Constructional types and drawings showing form, socket/tailpiece and mating interfaces.
• Nominal diameters and dimensional tables (typical sizes: e.g., Dyu 100, 150 mm with corresponding branch sizes).
• Tolerances and key dimensional limits to ensure interchangeability with other GOST 6942 series items.
• Materials and basic requirements: cast iron suitable for sanitary waste systems (material standards referenced elsewhere in the series).
• Marking, designation and reference to related GOST parts for complete system compatibility.

Typical use and users

Used by cast-iron pipe and fittings manufacturers, product designers, plumbing and sanitary engineers, building contractors, quality inspectors and procurement/specification teams responsible for internal building sewerage installations. Also used as a reference for maintenance, repair and replacement of cast-iron sanitary systems in existing buildings designed to the GOST series.

Related standards

Part of the GOST 6942 family for cast-iron waste pipes and fittings. Directly related documents include earlier editions (GOST 6942.5-69) and the consolidated successor GOST 6942-98 (which replaced the -80 series). Other parts of the series (e.g., GOST 6942.1–6942.24) define pipes, sockets, reducers, tees, elbows and technical conditions for the complete system.

Keywords

GOST 6942.5-80; cast iron; waste pipes; sanitary fittings; compensation branch pipes; compensation fittings; construction and dimensions; drainage systems; internal sewerage; pipe fittings; interchangeability.

FAQ

Q: What is this standard?

A: GOST 6942.5-80 is a Soviet-era national standard that specified construction and dimensional requirements for compensation branch pipes used with cast-iron sanitary waste pipes.

Q: What does it cover?

A: It covers the forms, principal dimensions, nominal sizes, tolerances and mating interfaces of compensation (expansion/connection) branch fittings intended for internal building sewerage systems using cast-iron pipes.

Q: Who typically uses it?

A: Manufacturers of cast-iron sanitary pipes and fittings, plumbing engineers, contractors, maintenance teams and specification/procurement personnel working on buildings designed to GOST pipe systems.

Q: Is it current or superseded?

A: It is superseded. GOST 6942.5-80 was approved in 1980, came into force on 1 January 1982, and was later replaced by the consolidated GOST 6942-98; the -80 Part is no longer active.

Q: Is it part of a series?

A: Yes — it is one part of the GOST 6942 series covering cast-iron waste pipes and fittings (multiple numbered parts address reducers, tees, elbows, sockets, technical conditions, etc.).

Q: What are the key keywords?

A: Cast iron, waste pipes, sanitary fittings, compensation branch pipes, construction, dimensions, GOST 6942, drainage systems.