The experience gained over more than 40 years, developing our activities in Nuclear Power Plants, through the application of our technological development, allows us to make available to our clients the most advanced technology in the field of Passive Fire Protection both National and international level.
Chepro strategy is based on the creation, innovation and provision of the most advanced technology necessary to respond to the demands originating in the market.
Our business strategy is to promote and apply our capacity (Strategic Intangible Assets), for the development of new products, services and processes, in compliance with the new regulatory standards, required both in nuclear power plants and in the rest of the sectors, applicable to the Passive Fire Protection.
The main systems that our firm possesses guarantee the confinement of the fire, thus preventing its spread to other areas and facilitating effective action by the active systems, obtaining as a result the containment and extinction of the fire.
Our systems guarantee, in extreme fire conditions, the integrity of the protected element due to its “Security Element” Classification (required in the nuclear and petro-chemical sector).
The following systems would be examples of the different applications of passive protection that we offer to our clients:
- Sealing systems for penetrations and bushings (fire barriers).
- Electrical trays Protection (Security elements).
- Ventilation ducts Protection.
- Compartmentalization.
- Metal structures Protection.
- Electrical substations Compartmentalization.
- Fire doors.
Sealing of penetrations – fire barriers
The CT-18 system (Silicone Foam DC 3-6548), installed according to the protection requirements (Fire, Pressure Difference and Hydrostatic Pressure) both in electrical and mechanical penetrations, is classified in Nuclear Power Plants as ” Secure Protection System”.
The installation of the CT-18 System, as a fire barrier (Penetration Seal), on the penetrations originated, as a consequence of the passage of electrical and/or mechanical conductions through walls and floors, provides the installed barrier with the requirements of protection listed below:
| Design parameter | Test | Classification obtained |
| Fire | 26543 | 3 hours |
| CTP-0204 | 3 hours | |
| Hydrostatic Pressure (Water) | CTM-0190 | 12 PSI |
| CTP-266/86 | 1.49 PSI | |
| Differential pressure (air) | CTP-1032 | 1.5 PSI |
| CTP-1035 | 1.5 PSI | |
| CTP-1037 | 6 PSI |
| Design parameter | Test | Classification obtained |
| Fire | 26543 | 3 hours |
| CTP-0204 | 3 hours | |
| Hydrostatic Pressure (Water) | CTM-0190 | 12 PSI |
| CTP-266/86 | 1.49 PSI | |
| Differential pressure (air) | CTP-1032 | 1.5 PSI |
| CTP-1035 | 1.5 PSI | |
| CTP-1037 | 6 PSI |
The LDSE (Light Density Silicone Elastomer) System, installed according to the protection requirements (Fire, Pressure Difference and Hydrostatic Pressure) both in electrical and mechanical penetrations, is classified in Nuclear Power Plants as a “Safe Protection System ”.
The installation of the LDSE System, as a Fire Barrier (Penetration Seal) over the penetrations caused, as a consequence of the passage of electrical and/or mechanical conduits through walls and floors, provides the installed barrier with the protection requirements indicated below:
| Design parameter | Test | Classification obtained |
| Fire | CTP-1024 | 3 hours |
| CTP-1063 | 3 hours | |
| Hydrostatic Pressure (Water) | CTP-1091 | 15 PSI |
| CTP-1138 | 26 PSI | |
Differential Pressure (Air) | CTP-1033 | 20 PSI |
| CTP-1036 | 20 PSI | |
| CTP-1040 | 20 PSI |
| Design parameter | Test | Classification obtained |
| Fire | CTP-1024 | 3 hours |
| CTP-1063 | 3 hours | |
| Hydrostatic Pressure (Water) | CTP-1091 | 15 PSI |
| CTP-1138 | 26 PSI | |
| Differential Pressure (Air) | CTP-1033 | 20 PSI |
| CTP-1036 | 20 PSI | |
| CTP-1040 | 20 PSI |
The CT-900 System, installed according to the Protection requirements (Fire, Pressure Difference and Hydrostatic Pressure) both in electrical and mechanical penetrations, is classified in Nuclear Power Plants as a “Safe Protection System”.
The installation of the CT-900 System, as a Fire Barrier (Penetration Seal) on the penetrations originated, as a consequence of the passage of electrical and/or mechanical conductions through walls and floors, provides the installed barrier with the protection requirements listed below:
| Design parameter | Test | Classification obtained |
| Fire | CTP-1024 | 3 hours |
| Hydrostatic Pressure (Water) | CTP-266/86 | 21.34 PSI |
| Hydrostatic Pressure (L.O.C.A. Conditions) | 01-EE-1356 | 48.36 PSI |
| Design parameter | Test | Classification obtained |
| Fire | CTP-1024 | 3 hours |
| Hydrostatic Pressure (Water) | CTP-266/86 | 21.34 PSI |
| Hydrostatic Pressure (L.O.C.A. Conditions) | 01-EE-1356 | 48.36 PSI |
The HDLE System (High Density Lead Elastomer), installed according to the Protection requirements (Fire, Pressure Difference and Hydrostatic Pressure) both in electrical and mechanical penetrations, is classified in Nuclear Power Plants as a “Safe Protection System”.
The installation of the HDLE System, as a Fire Barrier (Penetration Seal) over the penetrations caused, as a consequence of the passage of electrical and/or mechanical conduits through walls and floors, provides the installed barrier with the protection requirements indicated below:
| Design parameter | Test | Classification obtained |
| Fire | CTP-1010 | 3 hours |
| 26543 | 3 horas | |
| CTP-0202 | 3 hours | |
| Hidrostatic Pressure (water) | CTP-1008 | 10 PSI |
Diferential Pressure (Air) | CTP-1030 | 20 PSI |
| CTP-1038 | 20 PSI | |
| Radioactive Shielding | Michigan University Report. Gamma Attenuation Coefficient | |
| Parámetro de diseño | Test | Casificación obtenida |
| Fuego | CTP-1010 | 3 horas |
| 26543 | 3 horas | |
| CTP-0202 | 3 horas | |
| Presión hidrostática (agua) | CTP-1008 | 10 PSI |
Presión diferencial (Air) | CTP-1030 | 20 PSI |
| CTP-1038 | 20 PSI | |
| Blindaje radioactivo | Michigan University Report. Gamma Attenuation Coefficient | |
The CT-15B System (Flexible Boot Type Seal), installed according to the Protection requirements (Fire, Pressure Difference and Hydrostatic Pressure) both in electrical and mechanical penetrations, is classified in Nuclear Power Plants as a “Safe Protection System”.
The installation of the CT-15B System, as a Fire Barrier (Penetration Seal) on the penetrations originated, as a consequence of the passage of electrical and/or mechanical conduits through walls and floors, provides the installed barrier with the protection requirements listed below:
| Design parameter | Test | Classification obtained |
| Fire | 26543 | 3 hours |
| CTP-0202 | 3 hours | |
| Hydrostatic Pressure (Water) | CTM-0200 | 3 hours |
| CTP-1135.2 | 10 PSI | |
Differential Pressure (Air) | CTP-1031 | 20 PSI |
| Design parameter | Test | Classification obtained |
| Fire | 26543 | 3 hours |
| CTP-0202 | 3 hours | |
| Hydrostatic Pressure (Water) | CTM-0200 | 3 hours |
| CTP-1135.2 | 10 PSI | |
| Differential Pressure (Air) | CTP-1031 | 20 PSI |
The Protection System (Double Mantle), installed in Seismic Joints according to the Protection requirements (Fire, Pressure Difference and Hydrostatic Pressure) both in electrical and mechanical penetrations, is classified in Nuclear Power Plants as “Protection System Safe”.
The installation of the Protection System (Double Blanket) as a Fire Barrier (Penetration Seal) on the existing Seismic Joints in walls and floors, provides the installed barrier with the protection requirements indicated below:
| Design parameter | Test | Classification obtained |
| Fire | CTP-1015 | 3 horas |
Hydrostatic Pressure (Water) | CTP-1135.2 | 10 PSI |
| Data Sheet Klevers 332 | 4.35 PSI | |
Hydrostatic Pressure (Water) | CTP-1031 | 20 PSI |
| Design parameter | Test | Classification obtained |
| Fire | CTP-1015 | 3 horas |
| Hydrostatic Pressure (Water) | CTP-1135.2 | 10 PSI |
| Data Sheet Klevers 332 | 4.35 PSI | |
| Hydrostatic Pressure (Water) | CTP-1031 | 20 PSI |
The CT-271 flexible system has been tested at LGAI Technological Center SA Laboratories in compliance with ASTME-119 and E2226-08 Standards, through Test 10/101777-1735 M1 (System A) report made, certifying the system as Fire Resistant, maintaining the characteristics of Integrity and Thermal Insulation for 3 hours.
The installation of the Chemtrol CT-271 System as a fire barrier on the flexible elements, provides the installed barrier with the protection requirements indicated below:
| Design parameter | Test | Classification obtained |
| Fire | 10/101777-1735 M1 (Sistem A) | 3 hours |
| Design parameter | Test | Classification obtained |
| Fire | 10/101777-1735 M1 (Sistem A) | 3 hours |