What acceptance tests are required for dry pipe systems?

The required acceptance tests for dry pipe systems include a hydro test, air test, and alarm test to ensure the system functions properly and meets safety standards.

The hydro test evaluates the integrity of the system's piping by submerging it in water at a specified pressure for a certain period. This test checks for leaks and verifies that the system can withstand the operational conditions it will experience.

The air test is crucial as it assesses the system's ability to hold pressure without leaks when pressurized with air. This helps ensure that all joints and fittings are secure and that there are no gaps in the system which could lead to system failure.

The alarm test is necessary for confirming that the system's alarm components properly function when there is an activation in the system, providing assurance that the system will alert stakeholders in the event of a fire.

Collectively, these tests are essential for validating the reliability and effectiveness of dry pipe systems before they are put into service, ensuring they will operate correctly in case of an emergency.