DRY DELUGE TESTING
The philosophy behind the SIRON Dry Deluge Test is that crucial firefighting safety systems need to be in top condition. Deluge systems are, because of their nature crucial in case of fire. Crucial in containing a fire and crucial in keeping escape routes safe. By maintaining these safety systems in top condition, these systems can do what they are designed for: saving lives.
With Dry Deluge Testing, the on-site operability of the firefighting systems will be enhanced. Thus, the on-site safety will be increased, such that our technology will sooner or later be saving lives.
That is why we are this proud of bringing our technology to the globe.
The patented Dry Deluge Test from SIRON Fire Protection Services provides many advantages over regular (sea) water testing.
- Testing is safer and considerably less expensive.
- The testing can be performed in a segmented way. Thus, operating processes can remain uninterrupted.
- The preparation work for Dry Deluge Testing is considerably shorter than for regular wet tests.
- Any leakages in the flow pipes are easier to spot.
- Residual water from former tests will be blown out of the deluge system.
- The process equipment is protected from any (sea)water contact during testing, and remains in better condition.
- Absence of wastewater to be processed after the test, no overflowing sump tanks.
- Reduced internal corrosion in flow pipes and nozzles, leading to less solids in the system and thus, less blockages.
- Reduced salt scaling inside flow pipes and nozzles, leading to less solids in the system and thus, less blockages.
- No new organism like e.g. sea shells will thrive in flow pipes, leading to less blockages.
About 20 mayor global players in the energy industry have now adopted our technology. Three of these have internalised our technology in their own company standards. These players concern companies in the biomass fuel, the wind energy, mineral fuel and in the nuclear fuel industry.
Companies in other industries, that have begun testing are in the transport industry and in the vehicle manufacturing industry. Here again some top five global actors are involved.
Besides in the producing industry also in Atria of bigger office buildings or hospitals or in high ceiling storage systems where deluge systems are installed, our technology brings numerous advantages.
If you have a deluge system to be tested: contact us now for a quotation.
The Dry Deluge Test uses pressurised smoke instead of (sea) water in order to inspect the functioning of the system. Here very specific conditions need to be met, in order to be able to test entire production facilities. The smoke needs to be sufficiently dense and stable while low in environmental impact.
The flow of smoke and the pressure need to be such that entire systems can be covered and that from each individual nozzle sufficient smoke is registered to judge the specific parameters of the nozzles in question. After elaborate tests with numerous types of smoke and other settings we came to a workable set of parameters that can be well adapted to every specific location with its own specific requirements.
Typically, a two inch hose is connected from the smoke generator to a tie in point immediately downstream of the deluge valve. The hose is connected via a check valve to the tie in point of the deluge system that is to be tested. The compressor is then forcing the smoke vapour to flow into the system, downstream of the deluge valve, through the headers and the conduits, ultimately exiting the deluge nozzles.
Whilst flowing downstream any blockages from corrosion or particulate matter within the system are identified by the insufficient spray patterns coming from the nozzles. Any anomalies found in the smoke spray patterns will be investigated by inspecting the nozzles and the upstream conduits thereof using a portable borescope. Damaged nozzles can similarly be quickly identified due to insufficient or wrongly directed spray patterns during the smoke test. Damaged nozzles are regularly occurring on offshore facilities and they can affect the operability of the nozzle in question or even in worse cases can negatively affect the overall hydraulic balance of the deluge system.
The nozzles can be inspected relatively easily, since the smoke allows a close approach inspection of each individual nozzle, something that is way more arduous in water testing.
Since we have put a lot of effort in getting the optimal conditions for this technology, we decided to protect our intellectual property with a set of patents. By no means, we want to block the world from this technology, so we are looking for licensing partners around the globe to help us further expand our technology.
Our licensing partners are typical service providing companies in maintenance and testing of firefighting systems on industrial scale, having a proven track record of clients with deluge firefighting systems.
SIRON Fire Protection Services will bring a fully equipped container on the platform or the production location. This container comprises its own independent vacuum compressor, the Dry Deluge Test facility and tools & equipment for immediate repair of the deluge system. Typically, the container has a small workshop and comprises some of the most common spare parts, such as hangers, clamps, nozzles, T’s, bends, mostly schedule 40 and 80 and thread fitting tools.
The machinery of our workshop and the smoke generators are typically requiring 220 Volts 20 A (5kW). If alternative mains are available only, we will bring alternative equipment.
Our container is having a footprint of .. m2 ( .. ft2) and a volume of .. m3 ( … foot3) and is painted crimson red.
Yet we can adapt to alternative power supply systems if we are aware of the locally available special power mains well in advance of shipping our container.
In remote locations e.g. offshore, we need some bed space.
Dry Deluge Testing is a way of testing that is in conformity with the NFPA regulations of testing open fire fighting systems. Within the NFPA, under certain conditions open firefighting systems are allowed to be tested in alternative ways. NFPA 25 paragraph 188.8.131.52 reads: Where discharge from the system discharge devices would create a hazardous condition or conflict with local requirements, an approved alternate method to achieve full flow conditions shall be permitted.
The discharge patterns from all of the open spray devices shall be observed (NFPA 25 paragraph 184.108.40.206 and similarly NFPA 25 paragraph 220.127.116.11.5):
- to ensure that patterns are not impeded by plugged discharge devices;
- to ensure that discharge devices are correctly positioned; and
- to ensure that obstructions do not prevent discharge patterns from covering surfaces to be protected.
Where obstructions occur, the piping and discharge devices shall be cleaned and the system retested.
Typical hazardous conditions are given when e.g. the test water is containing salt, which would lead to unsafe or dangerous situations because the water is for instance sprayed on electrical equipment or equipment prone to corrosion.
A conflict of local requirements is typically given when e.g. an atrium deluge system cannot be tested because of the damage to equipment, furniture and administration systems being employed within the facility. Here the Authority Having Jurisdiction (AHJ) can give permission to test solely with smoke instead of a full wet test.
Part of 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, and the system, from this block valve up to the open nozzles is tested dry, with smoke.
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 openness of the system is integrally tested dry with smoke. These two tests in combination, when both are accepted, present a sufficient test to certify that the system is fit for purpose.
Deluge systems, water spray systems, water mist systems, foam systems and compressed-air-foam systems all require yearly obligatory testing. All of these systems can be tested with our technology and are described within the NFPA 25.