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1840 P. R. Hodge Steam Engine vi. 229 The steam enters through the starting-valve, the handle of which is seen in plan and elevation.

1912 Times of India 12 Jan. 15/3 Reversing in this engine is accomplished..by turning a subsidiary shaft through the required angle, a motion which by means of levers and eccentrics alters the position of the cam operating the fuel and starting valve levers.

2004 D. Woodyard Pounder's Marine Diesel Engines & Gas Turbines (ed. 8) xiii. 464 The starting air system contains a main starting valve (two ball valves with actuators), a non-return valve, a starting air distributor and starting valves.