1：小型輕便，容易拆裝及維修，并可以在任意位置安裝:                                       2：結(jié)構(gòu)簡單，緊湊，90度回轉(zhuǎn)開啟迅速。                                                       3：操作扭矩小，省力輕巧。                                                                        4：流量特性趨于直線，調(diào)節(jié)性能好。                                                            5：啟閉試驗次數(shù)多達數(shù)萬次，壽命長。                                                          6：達到完全密封，氣體試驗泄漏為零。                                                           7：更換零件材質(zhì)，配對，可使用多種介質(zhì)。