What do we do?

Comprehensive solutions for design, assembly and maintenance of firefighting systems


Our Technical Department will advise you offering solutions in accordance to your needs evaluating every risk and taking the technical-economic option that best fits your company.


For more than 45 years, TESEIN has been present in the Marine Industry, one of the most demanding technically and regulatoryly available. The extensive experience we have accumulated allows our specialists to install, reform and maintain fire fighting facilities and equipment in all types of ships, from anywhere in the world.

The proven qualification, quality in the processes and professionalism in the service have allowed TESEIN to obtain the recognition of the most prestigious companies in the sector, all audited and certified by the following International Marine Classification Societies:

  • DNV-GL
  • ABS
From our marine service station, we provide services in Spain and Portugal, especially in all ports of the Cantabrian and Atlantic coast (Bilbao, Santander, Gijón, Avilés, San Ciprián, Ferrol, A Coruña, Arteixo, Ribeira, Pobra do Caramiñal, Marín, Vigo, Aveiro, Leixões and more ports).
TESEIN is a service station of SURVITEC GROUP, manufacturer of marine safety solutions, for fire protection services and personal protective equipment (breathing apparatus, inmersion suits, life jackets, and others).
We are also a service station of LALIZAS, an international manufacturer of nautical safety accessories and equipment, for the maintenance of all your breathing equipment, life jackets and survival suits.
The Authorizations and Certifications section shows the degree of reliability achieved by TESEIN in the development of its work.

Maintenances & failures

Aware of the need of having well maintained equipment and systems, our Maintenance Department, with certified personnel and a strong structure of technical resources, offers their clients advise, inspection and certifications of all their equipments and installations.

We have a surface of 3000m2 for our own workshop and specialized center of inspection, refilling, hydrotests and maintenance for every kind of cylinders and self-contained breathing apparatus.

Our after-sales service guarantees a technical assistance for failures in less than 24 hours, 365 days a year according to your needs.


We have technical and human means and also the needed material to guarantee this kind of training, a practice field of 540 m2 in our establishment, civil liability and accident insurance to guarantee the security of all the participants.

We collaborate as an organizing company, with the Fundación Tripartita, now Fundae, in the organization and rewards of the training we provide.

Theory training: generalities about the fire, different kinds of firefighting detection and extinction and its operation

Practical training: manual extinction of fire, handling of portable extinguishers and hose reel cabinets for each participant, three heights of real controlled fire of different origins for the use of different extinguishing agents (water, foam, gases, chemical powder…)

Theory – practice modules in our clients’ establishment, suitable to the needs of every client


Business units

We are specialists in firefighting security, offering comprehensive and custom-made solutions that ensure the tranquility of our clients clientes

Detailed engineering, design and development

A highly qualified staff of engineers work in our design and development department to reach firefighting protection solutions, with a global focus, being able to conciliate regulatory and technical requirements with economic conditions in accordance with insurance companies.

Fire extinction

  1. Fire extinction by means of WATER
    1. Automatic sprinkler systems: they are detection systems that warn, control and extinguish certain kinds of fire before they spread. Automatic sprinklers protect practically the whole of the buildings, except for a very few exceptions where water is inadvisable as an extinguishing agent and more adequate systems have to be used. It is a totally independent and automatic fire protection system, therefore, it doesn’t need any other system to activate them.
    2. Water spray systems: Open nozzle system where a large quantity of water is released (the whole system) and the cooling of this risk is started to avoid fire spread, although in some cases the fire can be totally extinguished. In addition to the use of open nozzles where the discharge system is a deluge discharge system, closed nozzles can be used, provided the discharge velocity is fast or also water spray monitors can be used.
    3. Water mist systems: The maximum cooling capacity for a certain amount of water is obtained by the division of the water volume into very small drops, decreasing the volumes used and therefore, decreasing the damage caused by conventional systems that use water as an extinguishin agent (Automatic sprinklers, deluge systems, hoses, etc.). ADVANTAGES
      • Economy, minimum cost of the extinguishing agent.
      • Ecological extinguishing agent, it doesn’t damage environment.
      • Non electrically conductive
      • Eficient for flammable liquid fires.
      • Safe for the protected equipments and for the people.
      • Very reduced damages caused by water.
      • Drastic reduction of the area temperature.
      • Oxygen level maintenance.
      • Smoke and toxic gases washing.
      • It prevents reignition.
      • Multiple download systems.
    4. Manual extinguishing firefighting systems: hose reel cabinets, hydrants, dry column and manual extinguishers. This kind of systems are used for small fires that are supposed to be controlled by these means of manual extinguishing systems. In case these manual extinguishing systems are not enough to control or extinguish the fire, it is recommended, for safety reasons, to let the automatic extinguishing systems work, firemen and professionals trained for these kind of risks.
  2. Fire extinction by means of FOAM Extinguishing principle is based on the mixing of the three foam generators elements: water + foam + air. To generate foam, water flows through specific equipments where it mixes with foam and this substance afterwards mixes with the air.
    • LOW EXPANSION systems
    • MEDIUM EXPANSION systems
    • HIGH EXPANSION systems
  3. Fire extinction by means of GAS They are clean systems that don’t generate waste when extinguishing, they don’t either damage materials, instruments, nor electronical and electric equipments. Fire extinguishing systems by means of gas have developed during the last few years, rejecting halon use as an extinguishing agent and replacing it for clean gas agents which complies with Kioto protocol being harmless to ozone layer. There are different kinds of fire extinguishing gas agents, which will be chosen according to the fire nature, the risk to be protected or the possibility of existence of personnel in the risk to be protected. The reduction in the initial oxygen concentration is a very important factor to be taken into account in areas where there are people movement or are usually occupied. This is why unnecessary presence of people should be avoided. This is possible, generally, having acoustic alarms (sirens, warnings, etc.) and optical alarms (illuminated signs, flashes, etc.), as well as a discharge delay time (normally between 10 and 60 seconds), after the system automatic operation.
    • CO2
    • Inert gases (argon and nitrogen mixtures)
    • Clean gases (HFC´S as trade marks F13, FE 25 and FM 200
  4. Fire extinction by means of POWDER Chemical powder is an extinguishing agent which consists of tiny particles of different products (salt, phosphate, sulphate). In order to keep the good condition of the powder, additives are usually added to avoid lumps and its compacting. There are three kinds of chemical powder according to the fire class for which they are suitable:
    • Chemical powder BC for B and C fire classes.
    • Polyvalent chemical powder ABC, suitable for A, B and C fire classes.
    • Special chemical powder for D fire classes.

Fire detection

  1. Fire automatic detection systems: systems able to detect a fire automatically or manually, with the purpose of giving a signal to start the auxiliary equipment operation (such as fixed extinction systems) and even iniciate evacuation protocols and machinery stop.
    • Smoke detectors: ionization chamber
      • Optical type
      • By suction
    • Heat detectors: thermic
      • Thermovelocimetric
      • With temperature sensor
    • Flame detectors
  2. Automatic detection gas systems: these systems are similar to the fire detection systems, but designed to detect dangerous gas concentrations.
  3. Fire alarm automatic systems
  4. Fire alarm manual systems
  5. Alarm communication systems

Piping prefabrication

  1. Specific machinery to prefabricate and weld pipes of all sizes, manifolds included.
  2. Paint booth for the treatment and finishing requested by the client.
  3. Preparation, identification, packing, transport, delivering and assembly in the place and time agreed.
  4. Duly approved process.

Management and removal of Halon and other banned gases

In accordance with current legislation, Tesein offers their clients a service of management and removal of Halon and other banned gases.

Pumping equipments

  1. Pumps
    • vertical
    • axial
    • split case
    • submerged
  2. Motors
    • Electric
    • Diesel
    • Mixed

Fire water supply

  1. Aerial galvanized tanks
  2. Underground tanks
  3. High-level tanks of civil works
  4. Deposits

Station of inspection, refilling, repair, inspection and maintenance of pressure machines

Cylinders, large stationary and transport containers for compressed and liquefied gases are treated in our establishment complying with current legislation. We have painting booths, drying kilns, internal and external shotblasting machines, volumetric expansion test, refilling and test station to perform in every equipment the right treatment to ensure its correct working.

Refilling and inspection of self contained breathing apparatus and rescue equipments

We refill and inspect cylinders of breathing apparatus for:

  • Underwater activities
  • Ashore works

Breathing air transportable unit UNE12021

I+D+I Tesein’s department has developed and patented the breathing air transportable unit, capable of detecting flameproof gases such as CO2, O2, H2S, CO, CH4

  • Road transit allowed
  • Breathing autonomy:
    • 10 h – 2 operator
    • 3,33 h – 3 operator
    • 2,5 h – 4 operator
  • Possibility to double autonomy time when including the cylinder reserve option.
  • It can be used in any environment and confined spaces.

Repsol A Coruña, has in their plant one of our breathing air transportable unit. 

Analysis and quality certificate of air compressors

For different causes, although an installation has a GOOD air intake it can supply BAD QUALITY air. We check agents such as CO2, CO, oil, water. to make sure you breath GOOD QUALITY AIR.

Mixing, switching and refilling of industrial and alimentary gases

In our center of inspection and refilling we mix, refill and transport gases complying with the corresponden APPCC to guarantee product quality and that it reaches the client in optimal conditions.

Cryogenic tanks installation

Installation and periodic tests of cryogenic tanks and their equipments used for storing and usage of cryogenic gases like containers, isolations, supports, pipes, valves, gauges for the storing of cryogenic liquids.

Sales, inspection and maintenance

  1. Life rafts
  2. Security material
  3. Life jackets
  4. Rubber dinghies
  5. Pyrotechnics and articles

Center of theory-practice training – Fire fighting practice

  1. Theory
    • Training room
    • Qualified teachers
  2. Practice
    • 540 m2 practice field with a real fire controlled at three heights
    • Fire extinction with various extinction manual methods
    • Participation diploma
    • Training in our establishment or in the client’s establishmentBasic and advanced firefighting courses
    • Basic and advanced firefighting courses
    • Portable media and its usage
    • Firefighting protection fixed installations and systems
    • Breathing apparatus
    • NOVELTY: Training on firefighting equipment handling that use fluorinated gases as extinguishing agent. RD 795/2010, 16th June.


Real fire is originated in our establishment in order to practise fire detection and extinction where the client can see which is the best method that fits their needs.