Unlike other types of fire extinguishers, CO2 extinguishers feature a discharge horn as opposed to a hose. When a standard CO2 extinguisher horn is installed, it is fitted semi-tight, so that it can be swivelled but still holds itself in the chosen position. This is because during operation, the CO2 extinguishing agent causes a standard CO2 horn to frost over. If the horn is held during this time, it can potentially injure the user through freeze burn. An even better solution to this problem is to buy CO2 extinguishers with frost-free horns. These can safely be touched when fighting the fire, giving the user a lot more control when deploying the extinguisher. All Safelincs 2kg CO2 extinguishers have frost-free horns as standard.
Although the standard swivel horn is a popular choice and an economical solution, it does not have the necessary characteristics to protect the user from freeze burn injuries. The frost free horn is double lined and therefore has the insulation to eliminate these risks should the user accidentally hold on to the fire extinguisher horn during discharge.
5kg CO2 fire extinguishers are much larger in size and the discharge component for this is a hose and horn assembly. This does not have a frost free-horn, however, the horn features an integrated handle for safe use during operation.
Should you wish to upgrade the horns on any 2kg CO2 extinguisher to the frost free double lined horns these can be found in the tools and spares section of the website.
Many companies service their own fire extinguishers. They have trained a staff member through one of the UK’s extinguisher servicing training bodies and purchase their maintenance tools through Safelincs. In a series of blogs we present these tools to our readers and customers.
The nitrogen regulator and hose is an essential piece of equipment used by servicing engineers on stored pressure fire extinguishers. When used with the correct adapter or recharge bar (matching the fire extinguisher make), the fire extinguisher can then be connected to a nitrogen gas bottle. This allows for the fire extinguisher to be re-pressurised.
Safelincs offer a nitrogen regulator and hose with a working pressure of 20bar (300psi). It also features a ¼” female quick-fit connector. The regulator and all other equipment required for refilling and servicing fire extinguishers can be found in the tools and spares section of our website.
It is important for extinguisher engineers to have the correct tools needed for re-pressurising fire extinguishers. Part of the required equipment includes a set of adapters suited for various fire extinguisher makes and models. These adapters have a male quick-fit connector which allows for the engineer to connect the extinguisher to a nitrogen regulator and hose ready for pressurising.
The nitrogen regulator and hose and 11 piece fire extinguisher adapter set are available for purchase from the Safelincs website.
The kit includes:
- 3/8″ Roberts adapter
- 1/4″ Roberts Taper adapter
- Kiddethorn adapter
- Small Amerex adapter
- Large Amerex adapter
- 1/8″ Male adapter
- 14mm FPS/Firemark adapter
- 1/4″ Firechief/Firepower/Optimax/Pyrene/Allied adapter
- Schraeder adapter, Schraeder valve, Schreader valve cleaning tool