Recharging Dry Water Mist

[Guest Sam]

Hi there,

 

I am currently looking to purchase a dry water mist extinguisher (1L) however I am unsure if it can be recharged should it ever be needed and weather this could be done by myself or is it more specialist.

 

Regards

Sam

[Safelincs]

Hi Sam

The E-series dry water mist can be re-charged like any other extinguisher. You have to make sure that only de-ionised water is used, as it prevents bacteria growth and prevents the flow of any current if used on live electrical equipment. The refill should be carried out by a competent person, only, as high pressure is involved.

Harry

[AnthonyB]

You need to use a fire extinguisher maintenance company as you need special tools, charging adapters, O-rings and nitrogen cylinders.

You may find it's actually cheaper to buy a new one off Safelincs!

[AnthonyB]

You need to use a fire extinguisher maintenance company as you need special tools, charging adapters, O-rings and nitrogen cylinders.

You may find it's actually cheaper to buy a new one off Safelincs!

[Guest]

Ok thanks for the replies guys, is it exactly the same process as for a water extinguisher then ? With the same equipment (using de ionised water).

 

if so could somebody point me to where I could purchase this equipment ?

[Safelincs]

Hi,

we offer some extinguisher servicing tools

However, our sister company Actfire specialises on tools for service engineers and has more tools and spares.

Harry

[Guest]

Would you be able to point out the specifit tools for the 1l water mist extinguisher? I think Jewel Saffire have some weird connections possibly ?

[Safelincs]

Hi, you would need de-ionised water, a nitrogen cylinder, nitrogen regulator and a Jewel Water Mist refilling adaptor

Any problems, please let me know

 

Harry

[Guest]

Could I ask the reason for the nitrogen cylinder ? I assume it's to pressurise the extinguisher rather than a pump to compress air ? 

[Safelincs]

That is right, purely to pressurise the cylinder.

Harry

[Sardac]

What is the pressure of the water mist extinguishers. Can the extinguisher cylinder be made from lighter materials like aramid for example?

[Safelincs]

Hi Sardac

The pressure is 12 bar. Please see filling instructions for water mist extinguishers. It is crucial to use de-ionised water for any refill to ensure the non-conducting properties of the water is maintained. Ordinary water would conduct electricity!

Harry

[AnthonyB]

On 15/07/2016 at 9:21 PM, Sardac said:

What is the pressure of the water mist extinguishers. Can the extinguisher cylinder be made from lighter materials like aramid for example?

Yes, Britannia's P50 range is Kevlar. They don't do a water mist because their ordinary water and foam extinguishers are safe for electrical fires up to 1000V in accordance with EN3

[Tom Sutton]

The main construction of the P50 is a HighDensity Polyethylene Aramid fibre Kevlar® type material weaved onto the body, it is strong and incredibly light. It is also also used in butane/propane gas bottles, towing ropes, bullet-proof vests, fire-proof gloves and many other products.

Check out http://www.britannia-fire.co.uk/wp-content/uploads/2016/03/BF-P50-Brochure-2016.pdf