Frequently asked questions
Our Technical Services team has compiled a list of frequently asked questions to help you get the information you need.
How can I identify nozzles that are damaged or blocked with Dry Deluge Testing?
Identification of damaged nozzles while testing dry is almost the same as in a wet test. If a nozzle is damaged or partially blocked the spray pattern in a wet testing environment will differ from that of an unblocked nozzle. Where a normal nozzle has a perfect circular spray pattern, a damaged or partially blocked nozzle will show gaps in this circle. Although with Dry Deluge Testing, the nozzles will demonstrate different spray patterns, the distinction between normal and non-performing nozzles can be easily identified. The high pressurised smoke will demonstrate a non-circular smoke cone as well. During a test, you can inspect every nozzle from a close distance of a couple of inches to study the exiting smoke pattern. This close-up inspection leads to a better distinction of the damaged and partially blocked nozzles from the well performing ones.
Can Dry Deluge Testing save money through time?
Wet deluge tests need a considerable amount of time to prepare. The tests themselves and the clean-up afterwards also take a lot of time. Dry Deluge Testing on the other hand, is far less time consuming. Preparation and testing are substantially shorter and the clean-up is minimal because no (sea) water is used. Complete platforms can be tested in days, rather than weeks.Consequently, Dry Deluge testing will save money.
How does Dry Deluge Testing prevent corrosion in piping and nozzles?
The patented Dry Deluge Test by SIRON is a means to test deluge systems without the use of water. Residual firewater from previous (wet) tests with existing corrosion is displaced from the distribution pipework. Deluge pipework remains dry during testing mitigating corrosion. After testing, SIRON Deluge Services can additionally coat the inner pipework through the entire deluge system with a corrosion inhibitor. This “keeping the system as dry as possible for as long as possible” substantially prevents corrosion inside the system.
Is Dry Deluge Testing a guarantee for an uninterrupted production process?
Since Dry Deluge Testing can be arranged to perform in certain sections of the deluge system, the impact on the operation in the production process is hardly noticeable. Furthermore, the Dry Deluge Test obsoletes any water ingress protection over sensitive instrumentation and electrical equipment. No firewater is discharged onto equipment in service, which eliminates the risk of unplanned shutdowns due to water ingress.
What do we have to prepare for Dry Deluge Testing?
Preparation for deluge system owners is minimal. SIRON Deluge Services only needs a small space and a power outlet. If required by the scope of work, SIRON brings its own workstation to the platform. This workstation is a 10ft. offshore container containing a complete workshop for maintenance and replacement of deluge systems and the Dry Deluge Testing equipment.
Will your smoke trip our smoke or flame detectors?
One of the preparatory steps is to test locally installed flame or smoke detectors by blowing our smoke directly on them. Until now, none of the detectors has tripped while confronted with our smoke.