The SIRON Dry Deluge Test has demonstrated to deliver safer systems with reduced risks.
Typical hazardous conditions are a given when the test water would lead to unsafe or dangerous situations because the water is e.g. sprayed on electrical equipment or equipment prone to corrosion.
The philosophy behind the Dry Deluge Test is that the wet side, up to one of the block valves of the deluge valve is tested wet, to ensure pump performance and deluge valve activation. The system from this block valve up to the open nozzles is tested dry, with vapor. On an semi-annual basis the facilities fire pumps are tested to dump, and the Fire & Gas Detection system is tested from the detection back to the F&G panel. On an annual basis the Dry Deluge Testing is performed to prove 100% of the system pipe work and nozzles are undamaged and clear of blockages or partial blockages and obstructions.
By these two tests, the system is tested to the maximum degree on fitness for purpose. First pump performance and deluge valve activation are tested wet, and the deluge discharge piping tested dry with vapor. These two tests in combination, when both are accepted, present a sufficient test
to certify that the system is fit for purpose.