Flanges are tightened according to “CBT – 001 Assembly & Tightening of Bolted Flanged Connections” procedure. The tools are utilized according to the manufacturer’s instructions and all relevant safety standards are complied with. Before a flange is tightened, a written protocol with the required values will be submitted to our technician. After the controlled tightening of the flanged connection, a flange-label will be applied referring to a flange report that will be submitted to the customer for approval that the flange has been tightened correctly. A copy of the calibration certificate of the utilized pump will be handed over. After the controlled tightening of the flanged connection a flange-label, referring to a flange report, will be applied. The report will be submitted to a customer for approval. A copy of the calibration certificate of the utilized pump will also be handed over.