U-Tube Bundles

The in-house bending facilities enable us to construct U-tube bundle at the most competitive cost and fastest delivery. ‘U’ bundle is constructed in accordance with ASME VIII DIV I and API 660 requirements.

‘U’ tube bending is specified in accordance with TEMA ‘R’.
For bending radius greater than 2x tube outside diameter, the followings apply:

• Flattening of the ‘U’ bend portion should not exceed 10% of tube diameter.
• Tube wall thinning should not be less than minus 17% of the tube wall thickness.
• Leg length (total overall length) -0 + 5mm.
• Bend diameter tolerance 1.5mm.
• Stress relieve can be arranged with reputable heat treatment company.