What type of pressure is typically used to test hydronic systems for leaks?

To evaluate the integrity of hydronic systems for leaks, hydrostatic pressure testing is the standard method employed. Hydrostatic pressure testing involves filling the system with water and then pressurizing it to a specific level above the normal operating pressure. This method effectively reveals any leaks because water, incompressible in comparison to gases, will escape from even the smallest cracks or faulty joints when under pressure.

Additionally, hydrostatic testing is advantageous due to its safety profile; water is relatively benign compared to gases that may pose risks if not handled properly. This can be particularly important in maintaining workplace safety and ensuring that the testing is compliant with relevant regulations. The result of this test helps to confirm that the piping system is sound and can perform reliably under its intended operational conditions.