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PCE
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DIFF Subgroup
F22D 5/18

for varying the speed or delivery pressure of feed pumps

Introduced: September 1968

Full Title

Controlling water feed or water level; Automatic water feeding or water-level regulators > for varying the speed or delivery pressure of feed pumps

IPC and CPC are identically structured here. All 2 subcodes exist in both systems.

Child Classifications

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  • F22D 5/20 without floats IPC+CPC Available in IPC and CPC
  • F22D 5/22 with floats IPC+CPC Available in IPC and CPC