ABOUT US PRODUCTS APPROVALS
NEWS AND PROJECTS DOWNLOADS CONTACT US

iss Installs a self-contained premix station at aguiba rig's Helipad... 

April, 9th, 2005,                     See the Photos

The site was one of the most challenging for ISS corpse of engineers. In the middle of the Red Sea closer to Hurghada, and a difficult to reach and highly hazardous Heli-Pad. ISS was to design a system that would provide Manual Fire Suppression of the Heli-Pad utilizing Fire Fighting Foam Concentrate.

 

What was the first challenge? Well the facility had no power!! Any system was to be design using mechanical discharge in mind. There was not electrical parts within the system to be put in mind as there was no mains for them.

What was the second challenge? The facility was existing and running. The spot was obviously hazardous, the location was not very helpful - in the middle of the red sea.

What was the third challenge? It was first required to provide a local-application system as per NFPA requirements for the helipad alone, however afterwards it was deducted that with the versatility that ISS manufacturing engineers can provide, the client decided that the entire rig could be covered in terms of Fire Protection.

 
Ingenuity intervened. Without need for power source, without including any electronic components, following the international codes of Suppression Systems for Heli-Pads ISS installed a Quantity of 2 Stand-Alone Premix Station using Nitrogen-Pressurized Cylinders as the expellant gas modules, a local Nitrogen cylinder as the main initial actuation unit and large 3,500 gallon premix tank with 3% UL-Listed AFFF foam concentrate all locally assembled. Finally Discharge Monitors fitted with High-Flow Nozzles acted as the discharge device. 

The tanks had a premixed solution of 97% of water and 3% of 3% AFFF foam concentrate manufactured at ISS facilities at el Obbour city. The tanks have been design in such a way to be filled in minimal time and effort via a single person without the need of transferring anything to shore.

The system operates in a such a simple manner from the standpoint of a user but a sophisticated technique had to be put into the design of the system to ensure proper operation and complete coverage of the Helipad.

As shown on the left each water-oscillating monitor had a local highly-pressurized expellant-gas cylinder which when operated drives a sensing line which in turn operates the the main set of Nitrogen Cylinders (shown below) which act as the main expellant set for the main Premix Tank.

For a single man, all that is required it to manual open this little cylinder with minimal effort and a 3% AFFF foam solution is then discharged unto the piping network and slowly slid on the Heli-Pad.