PIPE-LINE SYSTEMS; PIPE-LINES (pumps or compressors F04; fluid dynamics F15D; valves or the like F16K; pipes, laying pipes, supports, joints, branches, repairing, work on the entire line, accessories F16L; steam traps or the like F16T; fluid-pressure electric cables H01B9/06)

Description

F17D covers the design, construction, and operation of pipeline systems used for transporting gases and liquids over distances. This includes piping networks, conduits, connections, joints, supports, and infrastructure for distribution and storage applications. The class encompasses materials, structural integrity, layout configurations, and protective measures for pipelines carrying various fluids including oil, natural gas, water, and chemicals. Related classes F17C (pressure vessels) and F17B (gas or liquid handling apparatus) address storage containers and individual handling equipment rather than the pipeline distribution networks themselves.

3 direct subcodes

Child Classifications

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F17D 1/00 Pipe-line systems (conveying articles or materials through a pipe- line by means of a fluid carrier B65G51/00, B65G53/00; liquids B67D; special devices for transferring liquids from bulk storage containers into vehicles or boats or vice versa, e.g. loading or unloading vehicles or portable containers B67D7/00; conveying material which has been excavated by a dredger or soil shifter through a pipe-line E02F7/10; sewer pipe-line systems E03F3/00; thermal insulation of pipe-lines F16L59/00; central heating systems F24D)
F17D 3/00 Arrangements for supervising or controlling working operations
F17D 5/00 Protection or supervision of installations (arrangements for protecting foundations E02D31/00; protecting pipes from damage or internal or external wear F16L57/00, against corrosion and scale F16L58/00; investigation of the fluid-tightness of structures G01M3/00)