Whatta Load

[j hancock]

Make that Loadstar.

[GA_Dave]

Marketed by the Ansul Company, this was their "Magnum 480" model, carrying 300 gallons of premixed water/foam and 1350 pounds of dry chemical agent.

[HeavyGunner]

53 minutes ago, GA_Dave said:

Marketed by the Ansul Company, this was their "Magnum 480" model, carrying 300 gallons of premixed water/foam and 1350 pounds of dry chemical agent.

 

So does that 1350 pounds of dry agent make multiple batches or must one with the 300 gal of water?

[GA_Dave]

1 hour ago, HeavyGunner said:

So does that 1350 pounds of dry agent make multiple batches or must one with the 300 gal of water?

The two agents are independent of each other.  The operator can choose the premixed foam or the dry chem or use some of both at the same time, all depending on the situation.  There is no pump on these rigs, the agents are expelled using compressed nitrogen, sort of like a big fire extinguisher.

[Red Horse]

Interesting-first post was city of  Bridgeport .   Next photo New Haven FD.  Must have been a state contract- or "monkey see-monkey do".  Never knew that dry powder was used in such large quantities on trucks.  Went to my share of fire schools and learned  just how effective a 20 pd. ansul dry powder could be.  we also had plenty of 150 lb wheeled Ansul dry powders in close proximity to loading racks.

[GA_Dave]

29 minutes ago, Red Horse said:

Interesting-first post was city of  Bridgeport .   Next photo New Haven FD.  Must have been a state contract- or "monkey see-monkey do".  Never knew that dry powder was used in such large quantities on trucks.  Went to my share of fire schools and learned  just how effective a 20 pd. ansul dry powder could be.  we also had plenty of 150 lb wheeled Ansul dry powders in close proximity to loading racks.

The majority of Magnum 480 twin agent units went to airports, at least in their first life.  The New Haven rig originally protected the Tweed - New Haven Airport.  The last rig served TIMCO Industries in Lake City, FL, a company that refurbishes airplanes, located at the Lake City Airport.

[Quickfarms]

The two agents are independent of each other.  The operator can choose the premixed foam or the dry chem or use some of both at the same time, all depending on the situation.  There is no pump on these rigs, the agents are expelled using compressed nitrogen, sort of like a big fire extinguisher.

Do you know why they are using nitrogen as opposed to say carbon dioxide?

Since carbon dioxide is in liquid form in the tank there is an expansion factor of 10-1 but in high volume use the piston regulators can freeze.