Split double-seal butterfly valve

The utility model discloses a sectionable double-seal butterfly valve which comprises two butterfly valve flaps and a connecting pipe, two pairs of bolt connecting holes are symmetrically formed in the side walls of the two butterfly valve flaps, external threads are formed in the two ends of the side walls of the butterfly valve flaps, internal threads are formed in the end of the inner wall of the connecting pipe, and the two butterfly valve flaps are attached to each other and fixedly connected through bolts. The external threads are in threaded connection with the internal threads. According to the butterfly valve, the pair of butterfly valve flaps, the connecting pipe, the internal threads and the external threads are arranged, the butterfly valve can be split into the two butterfly valve flaps during transportation, so that the butterfly valve is convenient to transport, meanwhile, the two butterfly valve flaps only need to be aligned, connected through bolts and connected with the connecting pipe in a