HEF Test
2:41
Added: 4 years ago
From: osmedicus
Views: 13,633
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  • 0:16  thud

  • why is there two differents alarms and strobes ?

  • I have a question. How or what does the foam include? Is it Toxic?

  • Comment removed

  • How do you get rid of it? I mean its a large foam covered area so do you spray it?

  • Good luck to clean it all

  • creep drop

  • that is a lot of semen

  • i think that would cause some skin irentation not sure though depends on foam being used

  • holy crap, i thought it would never stop

  • What would happen if you were standing under one of the red things when the foam started to come out?

  • You would get covered in foam, DUH! =) Nah, you would get covered then you'd just brush it off and get theheck out of there.

  • Yeah, but it sure would stink to be under one when it went off!

  • Yeah, it would! Haha, I'd be like "Bubble-bath anyone?"

  • lol

  • it looks like 5 feet

  • Does that foam irritate the skin?

  • how do you install them

  • It's rather complex and requires significant planning, calculations, and placement to ensure that the end product will protect the contents of the hangar. It was a joint venture between the general contractor, engineers, electricians, and the fire sprinkler company. To break it down simply the system is composed of the generators, sensors, pull stations, pressurized tanks, valves, piping, and integration into the existing alarm/controls system.

  • im just 8 but i understand kinda

  • the foam seen here works to put out the fire. its kinda like the water that fire men use, but it puts out the fire faster, and also check out tjs468's channel, hes only 8 like you.

  • So if this stuff is eco friendly, does that make it non-toxic for humans?

  • They must have some kind of giant vacume or something because that was a huge pile of foam!

  • Read my response to the poster below, we let it sit overnight and by the next morning there was nothing left except for something similar to a soap film on the floor. The foam solution expands at a rate of 750:1 (if I recall correctly) so it's easily understood that a majority of the foam mass is simply entrapped air. Once the surface tension of the foam bubbles yields to atmospheric pressure you are left with a completely eco-friendly residue that can be released into the storm water system.

  • That's an application I've never seen. Pretty crazy. Who intalls these systems? Sprinklerfitters? I've installed a foams system...which is really a regular wet system with foam discharge tank that releases into the system when tripped

  • The overall system was installed by a combined force of the general contractor and sub-contractors. The HEF system was installed by a fire suppression contractor who, as you know, are sprinkler/pipe fitters. This was similar to your job in that there are pressurized foam solution tanks that when tripped route through mixing valves and into the dry system.

  • How do they get rid of all of that? Also, how often are these tests done?

  • The test was conducted as part of the post installation procedures. This system was newly installed and the video posted were the results of the post installation test. As far as getting rid of the foam, amazingly enough we simply let it sit for about 24 hours resulting in a majority of the foam mass releasing into the atmosphere (as simple air) which just left a film throughout the hangar floor. The contractor then used hoses and squeegees to rinse the film into floor drains, it's eco-friendly

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