These are fire blast radiation theft and impact resistant.
Concrete blast door.
Imbed blast vault door.
These are fire blast radiation theft and impact resistant.
Our nwss bd concrete filled blast door is a superior multi purpose blast security door.
Imbed vault blast door 9 765 00 add to cart lunor pt 1 4 255 00 add to cart lunor pt 2 5 175 00 add to cart lunor pt 3 12 816 55 add to cart nwss bd concrete filled blast door 5 895 00 add to cart nwss gvd 4.
The blast doors or closures tested were either massive reinforced concrete doors 4 5 vertical shaft entryways with a submarine type hatch 1 2 3 steel doors with beam stiffeners 6 or doors tested at less than 10 psi 7 more.
They are constructed of steel and concrete and are equipped with nbc seals.
Blast reinforced concrete door supported by 3 sides 심관보1 이택성 2 kwan bo shim1 and taek sung lee2 1 한국산업기술대학교 스마트기계공학과 department of smart mechanical engineering korea polytechnic.
All frame and case metal is bent not cut and welded to insure superior strength.
They have inside compression locks and are locked with a paddle lock on the outside user.
Our nwss vbd 02 concrete filled blast door is a smaller superior multi purpose blast security door.
Our blast door catalog includes the following.
The door s case metal is bent instead of cut in order to guarantee maximum integrity.
The so 6 doors provide the highest level of protection against blast effects.
Their resistance against multiple long duration blast load ranges from 9 0 bar 900 kpa up to 18 bar 1800 kpa peak reflected overpressure.
Concrete filled steel envelope blast doors.
Filled with concrete after the door and frame are installed 600 pound dry weight goes up to 1 700 pounds of steel and concrete after filling massive captured hinges with bronze sleeve bearings and grease fittings keep the opening force down around 20 pounds.
This ensures its integrity is not compromised.
All metal is bent not cut and welded to insure superior strength.
The so 6 doors are designed to function within the elastic range of the materials used.
Our nwss bd 02 blast doors are basic blast doors.
Made from 100 steel and concrete concrete filling occurs onsite.
This 100 steel and concrete door is guaranteed to be strong as the door s frame and case metal is bent instead of cut and welded.