在改装旧管线时，有时由于跨距大、补偿量大，加之不宜按要求重新设立主固定支架等原因，对波纹补偿器提出了更高的要求。首先要求波纹补偿器能够吸收内压引起的推力，同时具有超常规大补偿，有较强的抗弯能力和自导向功能。针对这一特点，我公司波纹管研究所率先研制并开发出B In retrofitting the old pipeline, sometimes due to the large span, a large amount of compensation, coupled with the need to re-set the main fixed bracket and other reasons, the corrugated compensator put forward higher requirements. First of all require the bellows to absorb the pressure caused by the thrust, at the same time with unconventional large compensation, a strong ability to bend and self-directed function. In response to this feature, our company bellows Institute developed and developed the first B