The utility model discloses a hydraulic
butterfly valve testing device, which relates to the technical field of
butterfly valve testing, solves the problems of low positioning efficiency and poor testing effect of the existing device, and adopts the following scheme that four groups of supporting legs are fixedly mounted on the top surface of a base, and a detection box is fixedly mounted on the top surfaces of the supporting legs; according to the hydraulic
butterfly valve testing device, the sliding block, the moving block, the air cylinder and the
infrared sensor are arranged, the
infrared sensor senses the center position of the butterfly valve, then the sliding block and the moving block move to drive the sealing cover to move to a proper position, the air cylinder drives the sealing cover to move downwards, and therefore the top end of the butterfly valve is sealed; meanwhile, through the arrangement of a
pressurizer, a water tank, a pressurizing
pipe and a
water pipe, water is injected into the butterfly valve through the
water pipe, pressure is applied to the interior of the butterfly valve through the pressurizing
pipe, then whether water exists in a collecting hole or not is sensed through a water sensor, the test is simple and convenient, the precision is high, and the effect is good.