LONESTAR is capable of designing Metal Expansion Joints / Bellows from general applications to critical / extreme service applications.

LONESTAR offers Metal Expansion Joints / Bellows for pressures as high as 250 bar (g) (3550psig) and high temperatures as high as 1300o C (2372 F).

LONESTAR uses latest softwares for designing Metal Expansion Joints / Bellows with guidelines from EJMA, ASME & other International Standards.

LONESTAR employs FEA procedure for critical pressure parts design.

LONESTAR manufactures all types of Metal Expansion Joints / Bellows both in Circular & Rectangular shapes. The size covers up to 9000 mm in Circular and Rectangular to any size.

LONESTAR offers Metal Bellows both in single ply and multiply constructions.

LONESTAR adopts “state of the art“ Hydro forming, Elastomeric forming and Roll forming techniques to manufacture Metal Expansion Bellows.

LONESTAR offers different convolution profiles such as ‘U' - shape, Lyra, Toroidal and Diaphragm according to service requirements.

LONESTAR manufacturers Metal Expansion Joints / Bellows using all grades of Austenitic Stainless Steel such as 304, 321, 316, 316L, 309, 310 etc., Duplex Stainless Steel such as 253 MA and High Performance Alloys such as Alloy 600, Alloy 625, Alloy 625 LCF, Alloy X 750, Alloy 800, Alloy 800H, Alloy 825, Alloy C276, Alloy 400, Cupronickel, Titanium alloys etc.

LONESTAR manufactures various types of Metal Expansion Joints / Bellows required for all applications.

LONESTAR Single Expansion Joints

LONESTAR Universal Expansion Joints

LONESTAR Tied Lateral Expansion Joints

LONESTAR Hinged Expansion Joints

LONESTAR Gimbal Expansion Joints

LONESTAR Elbow Type Pressure Balanced Expansion Joints

LONESTAR Inline Pressure Balanced Expansion Joints

LONESTAR offers Metal Expansion Joints / Bellows of special types for critical and extreme service conditions such as,

LONESTAR Externally Pressurized Expansion Joints

LONESTAR Penetration Seal Bellows / Expansion Joints

LONESTAR Refractory Lined Expansion Joints

LONESTAR Reinforced Expansion Joints

LONESTAR Jacketed Expansion Joints

LONESTAR Metal Expansion Joints / Bellows are subjected to routine NDT checks as per International Codes & Standards.

LONESTAR Metal Expansion Joints / Bellows are subjected to periodic Type test for design & performance evaluation.

LONESTAR can supply Metal Expansion Joints / Bellows on specific requests duly inspected by Internationally reputed Third Party Inspection Agencies