What is required prior to the acceptance and operation of piping installations?

Prior to the acceptance and operation of piping installations, a visual inspection and pressure testing are essential steps. The visual inspection helps in identifying any visible defects, such as misaligned joints, irregularities, and signs of corrosion or damage that could affect the integrity of the piping system. It ensures that all components are installed correctly and meet the required specifications.

Pressure testing is a critical procedure used to verify the integrity and leak-tightness of the piping system. By subjecting the system to a pressure greater than the normal operating pressure, any leaks or weaknesses can be identified and addressed before the system is put into operation. This step is crucial for ensuring safety and compliance with industry standards.

While written approval and documentation, heat testing and material certification, and component replacement and verification are important aspects of piping installation practices, they are not specifically required as preliminary steps to ensure the immediate operability of the installation. Visual inspection and pressure testing are directly related to confirming the system's readiness for operation.