DIFF Subgroup
F16K 17/08 with special arrangements for providing a large discharge passage
Introduced: September 1968
Full Title
Full titles differ between systems:
IPC:
Safety valves; Equalising valves > opening on surplus pressure on one side; closing on insufficient pressure on one side > spring-loaded > with special arrangements for providing a large discharge passage
CPC:
Safety valves; Equalising valves, > opening on surplus pressure on one side; closing on insufficient pressure on one side (check valves F16K15/00) > spring-loaded > with special arrangements for providing a large discharge passage
Of 3 combined children, 0 exist in both systems.
3 codes are CPC-only extensions.
Child Classifications
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