See: Aanlooptijd (aanlooptijd van regulateur = governor dead time)
regulateur =
1. (bij brandstofinspuiting) timer, timing device
2. (gouverneur) gas governor; gas regulator

Gas governor/regulators ensure that the gas flow is within a predefined flow rate. If the supply pressure is too low or high, the regulator will keep it within a set band.

(https://www.undercontrol.co.uk/catering-gas-parts/gas-valves/gas-governor-regulator/)