译文：
故障:1、密封面泄漏，蝶阀的蝶板、密封圈夹有杂物。 2、蝶阀的蝶板、密封关闭位置吻合不正。 3、出口则配装法兰螺栓受力均或未压紧。 4、试压方向未按要求.。 xx方法1、xx杂质，清洗阀门内腔。 2、调整蜗轮或电动执行器等执行机构的限位螺钉.以达阀门关闭位置正确。 3、查配装法兰平面及螺栓压紧力，应均匀压紧， 4、按箭头方向进行旋压 故障:阀门两端面泄漏1、两侧密封垫片失效，2、管法兰压紧力不均或未压紧。 xx方法:1、更换密封垫片。2、压紧法兰螺栓(均匀用力)。

“ Butterfly valve may occur and elimination of several fault ”是由提供的国际阀门新闻，译文仅供参考。另外，中国蝶阀网还提供相关产品搜索：、、 、、等。

原文：
Failures: 1, sealing surface leakage, butterfly valve butterfly plate, seals are junk folder. 2, butterfly valve butterfly plate, seal closed position in line is not correct. 3, exports are equipped with both flange bolts or clamping force. 4, the direction of pressure test did not seek.. Elimination method 1 to remove impurities and clean the valve cavity. 2, adjust the worm gear or electric actuator such as the executing agency of the limit screws. To achieve the proper valve closed position. 3, Chuck plane equipped with flanges and bolts, clamping force, should be evenly compress, 4, according to the directionof the arrow spinning Fault: surface leakage of a valve at both ends, both sides of the gasket failure, 2, pipe flange clamping edge or uneven compaction. Elimination Method: 1, replace the gasket. 2, clamping flange bolts (even harder).