Flanged joints (F16L13/00, F16L17/00, F16L19/00 take precedence; adjustable joints F16L27/00; for hoses F16L33/00; couplings of the quick-acting type F16L37/00; for double-walled or multi-channel pipes, or pipe assemblies F16L39/00; connecting arrangements or other fittings specially adapted to be made of plastics or to be used with pipes made of plastics F16L47/00; specially adapted for pipes of brittle material F16L49/00)

Introduced: September 1968

Title

Titles differ between systems:

IPC: Flanged joints

CPC: Flanged joints (F16L13/00, F16L17/00, F16L19/00 take precedence; adjustable joints F16L27/00; for hoses F16L33/00; couplings of the quick-acting type F16L37/00; for double-walled or multi-channel pipes, or pipe assemblies F16L39/00; connecting arrangements or other fittings specially adapted to be made of plastics or to be used with pipes made of plastics F16L47/00; specially adapted for pipes of brittle material F16L49/00)

Full Title

Full titles differ between systems:

IPC:

Flanged joints

CPC:

Flanged joints (F16L13/00, F16L17/00, F16L19/00 take precedence; adjustable joints F16L27/00; for hoses F16L33/00; couplings of the quick-acting type F16L37/00; for double-walled or multi-channel pipes, or pipe assemblies F16L39/00; connecting arrangements or other fittings specially adapted to be made of plastics or to be used with pipes made of plastics F16L47/00; specially adapted for pipes of brittle material F16L49/00)

Of 6 combined children, 4 exist in both systems.

2 codes are CPC-only extensions.

2 shared codes have differing titles between IPC and CPC.

IPC defines codes here since 1974.

Child Classifications

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F16L 23/003 CPC only CPC only
F16L 23/006 CPC only CPC only
F16L 23/02 the flanges being connected by members tensioned axially (F16L23/12 takes precedence) since 1974 IPC+CPC Available in IPC and CPC
F16L 23/04 the flanges being connected by members tensioned in the radial plane (F16L23/12 takes precedence) since 1974 IPC+CPC Available in IPC and CPC
F16L 23/12 specially adapted for particular pipes since 1990 +1 CPC IPC+CPC Available in IPC and CPC
F16L 23/16 characterised by the sealing means since 1990 +3 CPC IPC+CPC Available in IPC and CPC