Metallic Bellows

• Axial Expansion Joints

  

  These are the simplest form manufactured from single and multi-ply elements and fitted with either flanges or pipe ends connections. These units are suitable for axial movements only, though in certain cases will take care of small lateral offset.s

  

  UNRESTRAINED

  25mm to 4.5 meter NB

  Pressure Ranges up to 16 kg/cm2 (spacial units for higher pressures)

• Twin Expansion Joints / Universal Expansion Joints

  

  Two bellows elements are joined together by a centre tube and fitted with either pipe ends or flanges. The assembly is capable of both axial and lateral movements but because of centre tube instability, is limited to low pressure applications.

  

  UNRESTRAINED

  Sizes 25mm to 4.5 metre NB

  Pressure Ranges up to 25 kg/cm² & above

• Twin Tied Expansion Joints 3 Tie Bars

  

  Similar to the previous unit but having 3 tie bars at 120° capable of lateral movements in any plane. Pipe ends or flanges can be fitted.

  

  UNRESTRAINED

  Sizes 25mm to 4.5 metre N.B.

  Pressure Ranges up to 10kg/cm2 (spacial units for higher pressures)

• Twin Tied Expansion Joints 2 Tie Bars

  

  These units consist of two bellows joined by a centre tube, 2 tie bars at 180° contain the pressure loads, and are supported by flanges or lugs. Lateral movements in any plane can be accommodated in addition to small angular movement.

  

  UNRESTRAINED

  Sizes 25 mm to 4.5 metre N.B.

  Pressure Ranges up to 10 Kg/cm2 & above

• Gimbal Expansion Joints

  

  A Gimbal Ring arrangement allows for angular movements in any plane. These units are usually installed in pairs or with a hinged unit which can accommodate large complex lateral movements at high pressures. Limit stops control degree of angulation. End Connections- Flangesor pipes.

  

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  Sizes 80mm- 3 metre N.B.

  (Larger sizes can be supplied) Pressure Ranges up to 40 kg/cm2

• Hinged Expansion Joints

  

  Generally installed in multiples of two or three, these joints are designed for angular movements in one plane only. A hinged mechanism contains the pressure loads and ties back to an integral flange or box restrained lug. Limit stops control the degree of angular movement . These units can be fitted with either pipe ends or flanges, can be supplied with two hinged system also.

  

  UNRESTRAINED

  Sizes 80mm -3 meter N.B

  (Larger sizes can be supplied) Pressure Ranges up to 40 kg/cm2

• Twin Hinged Expansion Joints

  

  These are the simplest form manufactured from single and multi-ply elements and fitted with either flanges or pipe ends connections. These units are suitable for axial movements only, though in certain cases will takecare of small lateral offset.

  

  UNRESTRAINED

  Sizes 80 mm -3 metre N.B. (larger sizes can be supplied)

  Pressure Ranges up to 40kg/cm2

• Pressure Balanced Expansion Joints

  

  Pressure Balanced Bellows are used in piping systems where pressure loads are critical, and where complex axial and lateral movements are involved when space is limited. Using a pressurised bellows outside the system to counteract forces generated by bellows inside the system, large axial and lateral movements can be absorbed.

  

  UNRESTRAINED

  Sizes, types & pressure ranges to suit specific applications.

• Rectangular / Square Expansion Joints

  

  Can be supplied in a wide size range. These Bellows have special application in Cement industries.