< PREVIOUS NEXT >

Megaflexon has manufactured and supplied 6 sets of high-temperature Metal Expansion Joints used in the MOH (Motor Oil Hellas Modular CCR) Project CCR Unit, the largest oil refinery in Greece.

The expansion joint manufactured this time is a dual hinge type metal expansion joint and a dual gimbal type metal expansion joint which is specialized in application at high temperature, enabling operation at 580℃.

UNS No. N08800 material is used for the bellows, which is the most important part of the expansion joint and ASTM A358 TP 316H & ASTM A240 TP 316H was used for the pipes and hard wares. These raw materials are suitable for high temperature application and is excellent in corrosion resistant, which contributes to the long life cycle of the expansion joints while keeping required movements of the design condition.

In this project, we have the CE PED certificate (certified according to the European steel container standard), which is the customer's requirement, so we could satisfy our customers with the best quality according to the customer's requirements.

■ Main mechanical design and features:

Dual Hinge Type Metal Expansion Joint

l  Size : 16”(DN400) x 3440mmL

l  Design Press. : 4.5 kg/cm²G

l  Design Temp. : 580℃

Dual Gimbal Type Metal Expansion Joint

l  Size : 16”(DN400) x 4505mmL

l  Design Press. : 4.5 kg/cm²G

l  Design Temp. : 580℃

■ Design Codes

l  EJMA 10th Edition

l  ASME B31.3 – Process Piping

l  UOP Standard Specification for Metal Expansion Joint

■ Materials

l  Bellows : UNS No. N08800

l  Pipe : ASTM A358 TP 316H

l  Hardware : ASTM A240 304H