Corrosion-resistant Unidirectional Directly Buried External Pressure Type

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	[Structural Features] This type of expansion joints has all of the advantages both of the external pressure type and the corrosion resistant Unidirectional directly buried Internal Pressure type. It not only can be buried directly, but also has strong compensation ability. So when we use this type of expansion joints we not only make sure of the construction quality but also save the project cost greatly at the same time. That’s the reason why it is widely used in the city thermal pipeline network projects. Corrosion-resistant bellows can resist the corrosion caused by the underground water, especially suitable for high chlorine ion soil of the coastal city.

	Material of Bellows: SUS 304(SUS316L is also available) Nominal Diameter: DN65-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(SUS316L is also available) Notes: If you have any other requirement, please contact us.