A pinch valve for a urinary drainage system comprises a tube attachment part for attaching the pinch valve to a tube of the urinary drainage system so that the tube is received in a tube receiving region of the pinch valve; a first pinch part and a second pinch part having the tube receiving region therebetween, wherein the first pinch part is moveable towards the second pinch part for compressing a tube received in the tube receiving region against the second pinch part; and an actuator operable to move the first pinch part; wherein the tube attachment part is openable so that the tube is receivable in the tube receiving region, and closeable so that the tube is retained in the tube receiving region.