In one aspect, the present disclosure is directed to a rotary valve including a valve body having a curved portion and two side portions, wherein a line extending through the respective centers of the side portions defines an axis of rotation of the rotary valve. The valve body may include a first fluid connection arranged in the body to fluidly connect at least one of the side portions and the curved portion, via a first opening in at least one of the side portions and a second opening in the curved portion. The valve body may also include a second fluid connection arranged in the body to fluidly connect at least one of the side portions and the curved portion, via a third opening in at least one of the side portions and a fourth opening in the curved portion, respectively.