angle-valve

from The Century Dictionary.

• noun A form of lifting- or spindle-valve, in a globular casing, in which the spindle or stem enters the valve in the same axis as one of the openings, and the other outlet is at right angles to the axis of the spindle; much used with steam-radiators and in other places where a right-angled corner is to be turned and a valve is also required. The angle-valve opposes less resistance to the flow of fluid through it than the globe-valve.