Expansion Joints
Expansion Joints - Image 2

Expansion Joints

These joints have a longitudinal movement of ±100 mm and are used in surface pipelines and in cases where there is longitudinal movement of the line to prevent damage to pipeline components and equipment due to forces resulting from pipeline expansion and contraction.

  • DN: 150 to 2600 mm
  • PN: 10 to 25 bar
  • Standards:
    • EN 1092-1
    • EN 1092-2
Category:

Description

  • Application: Expandable joints manufactured by Abersan Tolo Baharroud Company are sliding type with sliding surfaces made of stainless steel. These joints have a longitudinal movement of ±100 mm and are used in surface pipelines and cases where there is longitudinal movement of the line to prevent damage to pipeline parts and equipment due to the force caused by the expansion and contraction of the pipeline. Due to their special design, these parts, unlike accordion and rubber types, are capable of withstanding high pressures. Another application of these joints is to protect the pipeline in places where the force caused by an earthquake may damage the equipment. (such as places of entry to pumping stations, water tanks, tanks, etc.) In this case, the use of these parts is not limited to surface pipelines only and they are used in pipes installed underground.
  • Advantages and features:
    • Excellent mechanical resistance to the forces exerted on these connections by the pipeline (due to the use of steel structure)
    • Long life of the sealing system, due to the use of stainless steel sliding surfaces that prevent it from deforming and tearing.
    • Movement of ±100 mm, which reduces the number of these components required in the pipeline.
    • Connectable fittings for heating systems up to 220 degrees Celsius are manufactured to order.
  • Material type:
    • Body: ST37 steel and SS316 or SS304 stainless steel
    • Rubber: NBR or EPDM
    • Bolts and nuts: Galvanized Steel
    • Size: DN 150-1400
    • Working pressure: PN10-PN16-PN25
  • Design & Produce Technical Specifications
    • Flange standard according to: DIN EN 1092-1 (DIN 2501), ISO 7005-1
    • Final test standard: ISO 5208 or DIN EN 12266
  • Paint coating: Coating with epoxy polyamide paint and epoxy powder paint with an electrostatic spraying mechanism with a thickness of 250 microns can be applied according to the customer’s order and in accordance with DIN 30667 standard.

 

Schematic image and dimensional table

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