Side-flow Pressure Balanced Expansion Joints
Item Code: JPP type
Nominal Diameter: DN100-DN600mm
Direction of Movement: Axial
Working Pressure(MPa): 0.5, 0.6, 1.0, 1.6
End Fittings: Fixed Flange or Weld End
Bellows Material: Stainless Steel 304, 304L, 316, 316L, Incoloy 800H/825, Inconel 600/625
Flanges and Weld Ends: Carbon Steel or Stainless Steel
Side-flow Pressure Balanced Expansion Joints
Features
Expansion joint works by the two bellows and two subjected to external pressure balanced bellows and related components composition. Four bellows have the same effective area. Due to balancing bellows only subjected to external pressure, without pillar stability limit, axial guidance is very good. This product has smaller size, less rigidity than ZP products but greater axial compensation capacity. However, flow resistance is greater than ZP products. Same as ZP type, it is mostly used for heat pipeline.