Buried inside pressure bellows

Buried inside pressure bellows, concatenated together by one or more bellows, bellows outside the bellows can move axially outer sleeve, that is, protection devices, while maintaining its stability. Compensator in series by one or more bellows with the bellows outside the bellows allows axial movement of the outer sleeve, i.e. a protective device, while maintaining its stability. Purpose: Buried bellows internal pressure is mainly used for buried pipeline axial compensation, with the bending ability, so do not consider the impact of the sinking of the pipeline, products with large amount of compensation, and long life. Use: Buried bellows internal pressure is mainly suitable for axial compensation, but also has superior resistance to bending, so I do not consider the impact of the pipeline sinking. Freedom telescopic compensation under Buried corrugated compensator housing and the guide sleeve to protect other properties with the same common bellows.