Which is essential to follow when tightening down a flange?

Following proper torque specifications and tightening sequences is crucial when tightening down a flange because it ensures that the flange achieves the necessary sealing integrity and structural strength. Each flange connection is designed to function optimally under specific conditions, and adhering to these torque specifications helps prevent issues such as uneven loading and potential failure of the connection.

The tightening sequence is equally important as it dictates the order in which the bolts should be tightened, helping to evenly distribute the load around the flange. This prevents distortion of the flange itself and facilitates a proper seal between the mating surfaces, which is vital in applications where leakage could pose safety or operational hazards.

Moreover, excessive torque can lead to bolt failure, flange warping, or gasket damage, while inadequate torque can result in a compromised seal. Therefore, following the correct procedures ensures the reliability of the joint and the safety of the overall system.

While recommended materials, manufacturer’s guidelines, and visual inspection protocols are important in their own right, they do not directly address the mechanical integrity and leak prevention required during the torque application process as effectively as torque specifications and tightening sequences do.