1、由多波形波紋管一次成型而成,再于外套筒連接一體,充分保護波紋管,適用于埋地場合。
2、主要吸收軸向位移,具有補償量大、保溫效果好、殘余介質可以排除等優點。
【七】
1. This expansion joint are made by more corrugated (longer bellows),then welded with a external cover to become a external pressure bellows. The cover can protect the bellows to avoid outside damaged. This is very suit able to use on underground pipe.
2. This expansion joint can absorb a very large axial movement and more stability on a high pressure system .it’s easy to cover the temp.isolating material for keeping energy. |
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