Coal industry ball valve

The utility model provides a coal industry ball valve, valve body include first valve body and the second valve body that is located first valve body both ends, are provided with the through -hole of intercommunication outside and first valve body inner chamber on the first valve body, and through -hole department is provided with the end cap, has solved the problem of ball valve lumen hypertonia and blowdown, safe and reliable, taper surface among the tapered thread in the through -hole cooperatees with the taper surface of end cap front end, form sealed face, conical sealing surface realizes sealedly completely, prevent that the medium from flowing from the edge, it is multistage sealed to make the end cap have, and zero leakage is realized, moreover, the steam generator is simple in structure, facilitating usin, it is general in sealed that have relatively high expectations or in the highly compressed operating mode of high temperature, not only can use on the highly compressed valve of high temperature, c