What is typically required for a bolted coupling?

A bolted coupling is designed to provide a reliable connection between two pipes, ensuring that the joint is secure while allowing for flexibility and ease of maintenance. The correct answer highlights the various components necessary for such a coupling, which typically include a bolt, nut, grip ring, gasket, and body.

Each of these components plays a crucial role in the coupling's function. The bolt and nut are essential for securing the joint, allowing for the necessary tension to keep the connection tight. The grip ring helps to keep the pipes aligned and positioned correctly, while the gasket serves as a sealing element to prevent leaks. The body of the coupling encases these components and provides structural integrity.

In contrast, the other choices lack the comprehensive nature of the required components. Simply having a bolt and nut does not account for the need for sealing elements and alignment features that the full assembly provides. Mentioning only a gasket and glue ignores the mechanical aspects that a bolted coupling is meant to handle. Furthermore, suggesting that only components for smaller pipes are necessary overlooks the fact that bolted couplings are used across various pipe sizes, depending on the application and the pressures involved. Thus, the complete assembly of components is essential for the effective operation of a bolted coupling.