Bidirectional telescopic sliding flange welding ball valve

The utility model provides a bidirectional telescopic sliding flange welding ball valve, which relates to the technical field of welding ball valves and comprises a welding ball valve body, two ends of the welding ball valve body are respectively connected with sliding flanges through side pipes, sliding sealing rings are arranged between the sliding flanges and the side pipes, and the sliding flanges can slide relative to the side pipes. The sliding sealing ring is provided with an extending part, when the sliding flange slides, sealing between the sliding flange and the side pipe can be guaranteed, through the structure, the flanges at the two ends can stretch out and draw back and can rotate by 360 degrees in the circumferential direction, sealing is achieved, and therefore the flange welding ball valve can be conveniently and rapidly maintained and replaced on site. 本实用新型提供一种双向伸缩滑动法兰焊接球阀，涉及焊接球阀技术领域，包括焊接球阀本体，焊接球阀本体两端通过边管分别连接滑动法兰，滑动法兰与边管之间设置有滑动密封圈，且滑动法兰相对边管能够滑动，所述滑动密封圈设置伸长部分，当滑动法兰进行滑动时能够保证滑动法兰与边管之间的密封，通过上述结