Polyethylene ball valve gas tightness detection device

The utility model relates to a polyethylene ball valve gas tightness detection device is equipped with the detecting body who connects drive arrangement, characterized by which comprises a bod, be equipped with the seal between front end housing and the rear end cap, the first promotion body and second promote the body and concatenate, it aerifys the passageway to be equipped with in the first promotion body, during promoting to personally experience sth. Part of the body, the first promotion body and second be equipped with aerating device. The inside inflation cylinder body of detecting bodydevice arranges, need not external air supply, it is sealed to the valve body inner chamber through promoting body operation in -process, realize in succession quick automatic the completion and aerify to direct reading on the follow manometer, surveyability, realize the test of no ability of swimming, the environmental protection, degree of automation is high, effectively improves efficiency ofsoftware testing, and reus