- 34, Jackson Lane, Shop No. G3, Clive Square, Kolkata - 700001
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Unick Control System being the leading Metallic Expansion Joint Manufacturer in India with ‘UNICK’ Brand has fulfilled all the qualification to manufacture a wide range of Metallic Expansion Joint for the most severe and demanding service of the Oil, Gas, Refinery, Chemical stell Plant and Power Plant Industries.
| Material Type | ASTM* Material Specification | Temperature(C°) |
| 304 S/S | A-240 | 550 |
| 304L S/S** | A-240 | 550 |
| 316 S/S | A-240 | 550 |
| 316L S/S | A-240 | 550 |
| 321 S/S | A-240 | 550 |
| Monel 400** | B-127 | 425 |
| Inconel 600 | B-168 | 450 |
| Inconel 625 | B-443 | 450 |
| Incoloy 800/800H** | B-409 | 600/900 |
| Incoloy 825** | B-424 | 450 |
| Hastelloy C 276** | B-575 | 600 |
Bellows and expansion joints are typically used to connect engines to silencers. They are ideal where space is limited, but strength is a consideraion to absorb heat, expansion and vibration. With standard size of 2″ – 30″, customisation of connections both length and material to meet stringent specifications.
Rectangular metals expansion joints are generally used to convey fumes from the boiler to the chimney or steam from the turbine to the condenser.
Most economical expansion joint, total installed system cost may be higher than Gimbal, Hinge or Tied Expansion Joint System.
Economical expansion Joint. Absorbs large amount of lateral movement, total installed system cost may be higher than Gimbal, Hinge or Tied Expansion Joint System.
Absorbs large amount of lateral movement in any direction. Eliminates pressure thrust loads. Absorbs the thermal growth of the attachments. Piping between the rod.
Absorbs axial and lateral movements while still restraining pressure thrust. Eliminates main anchors, minimum guidance required.
Absorbs axial and lateral movements and isolate vibration. Sometimes they even makeup for minor misalignments. Eliminates main anchor, minimum guidance is required.
