Unidirectional Directly Buried Internal Pressure Type

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	[Structural Features] Under the protection of the sleeve and the guide ring, bellows of this type of expansion joints can stretch out and draw back freely to compensate. The sealing device makes it possible to bury directly to absorb the deformation of heat distribution pipelines. Except that, there is no difference from general types. It has strong bending resistance, there is no need to worry about the pipeline sedimentation. It’s very easy to be installed.

	Material of Bellows: SUS 304(SUS 321 and SUS316L are also available) Nominal Diameter: DN80-DN1200 Working Pressure: PN2.5/6/10/16/25 Working Temperature: -80℃/+450℃ Connection: Pipe end connection Material of Connection: Carbon steel GB/T 700 for standard use(Special material of connection to meet specific customer & industry requirements) Other choices: Inner sleeve, carbon steel, SUS304(SUS 321 and SUS316L are also available) Notes: If you have any other requirement, please contact us.