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PCE
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DIFF Main Group
F04F 9/00

Diffusion pumps

Introduced: September 1968

IPC and CPC are identically structured here. All 4 subcodes exist in both systems.

Child Classifications

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  • F04F 9/02 of multi-stage type IPC+CPC Available in IPC and CPC
  • F04F 9/04 in combination with fore pumps, e.g. use of isolating valves IPC+CPC Available in IPC and CPC
  • F04F 9/06 Arrangement of vapour traps IPC+CPC Available in IPC and CPC
  • F04F 9/08 Control IPC+CPC Available in IPC and CPC