The liquid emission valve in order that the flow which passes the valve itself and by the valve seat and the liquid exit is controlled is engagement possible vis-a-vis the valve seat, the valve component which it goes and returns exercises is possessed. The calibration equipment, possesses with the rotary possible stroke control stop component and the rotary possible standard ring. The standard ring and the stop component, at the beginning, we are turning to zero positions, next, turn the stop component, set to the stroke of slide of desire. 1 or plural fluid fittings are provided, are sealed up vis-a-vis the valve itself making use of the clamp board.
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