Which tool is essential for ensuring proper positioning of a hairpin exchanger?

The tool essential for ensuring proper positioning of a hairpin exchanger is a wedge. Wedges are specifically designed to effectively secure objects in place and can be adjusted to achieve the necessary alignment and positioning. In the context of a hairpin heat exchanger, proper positioning is critical for efficient operation and to prevent movement or misalignment during thermal expansion or when subjected to pressure changes.

While other tools such as cranes, levels, and jacks play significant roles in lifting, leveling, or supporting equipment, they do not serve the same purpose of fine-tuning and securing the position once set. Cranes are primarily used for lifting heavy machinery, levels assist in checking horizontal surfaces, and jacks are used to lift and support loads, but they do not provide the stabilization and positioning refinement that wedges do. By using a wedge, technicians can ensure that the exchanger is accurately positioned for optimal performance and safety.