Every critical component to outfit your underground shelter from NBC air filtration systems to blast doors

 


2009 Catalog
1 meg PDF download

Complete Bomb Shelter Kit Plans

Blast Door and Blast Hatch

Blast Valve

Bomb Shelter Ventilation Ducts

Overpressure Valve

Adjustable Overpressure Valve

Differential Pressure Gauge

Automatic Bunker Ventilation System

NBC Air Filtration Systems
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50-PSI Blast Door
The strongest door for your shelter

NBC overpressure air filter

 
Blast Door
P/N: ASR-50-BD
Price: $3,895.00
Status: Special order item
 
Options
Security viewer no charge
Flat threshold no charge
Outside operators $550.00
Assault resistant security latches $450.00
Outside security hasp assembly $225.00
Differential pressure gauge $325.00
Custom sized blast door quoted for each door
Oregon licensed PE stamped certificate quoted for each door
 
Please contact ASR to order
See terms of sales for more information
 

 

For more information on these options, please see the installation and operation manual (PDF):

 

Here are the certified engineering drawings for the standard blast door:


Click to view 311k PDF

 

Here are the certified engineering drawings for a custom impact door for a major American zoo:


Click to view 311k PDF

 

 
 
 
 


Custom engineered and manufactured impact door for rhinoceros and hippopotamus exhibits at an American zoo - locking double latch detail

 
 
 
 
 

 

 

 

This is a tested and proven, pre-hung, explosion resistant blast door that offers excellent protection from the extremely high pressure blast waves produced by a large conventional or nuclear device detonated in close proximity to your shelter.

This is not a blast hatch - the frame mounts in the vertical position - like a normal door. You can step over the threshold and walk through it. We also have a blast hatch that is built similar to this door. A blast hatch is a smaller "door" that mounts horizontally like a hatch on a submarine. Please scroll down for more information about our blast hatch.

The ASR-50-BD Blast Doors is engineered to withstand high pressure waves up to 7,200 pounds per square foot - 50 pounds per square inch (PSI). Additionally, this door also offer an air tight compression seal between the door and the frame allowing for the use of a positive pressure NBC filtration system inside the shelter. The inside cam latches suck the door into the gasket on the door jamb as they are rotated. In order to make any blast door air tight, you must have a step-over threshold for a mating surface at the bottom of the door - but you can opt for the flat threshold - please see the manual for more information.

The standard sizes are 32 by 72 inches and 36 by 80 inches. These dimensions are the outside of the frame lips that insert into the opening in the wall. You need to make your wall opening a little larger that these dimensions. We have also built a lot of custom sized doors. If you have an existing opening that needs a blast door, please contact us.

We purposely made this door as nondescript as possible because nothing says "valuables inside" like a blast door that looks like a bank vault. It is shipped to you primered finish so you can paint it to blend in with whatever is around your shelter entrance. See the painted blast door with the mirror on it below that is mounted inside a home. The mirror also hides the viewing port built into the door.

All of the seemingly small, but very important details are engineered into this door:

  • An optional steel shroud covers a user-supplied paddle lock in order to ensure nobody enters your shelter without your knowledge. A key component of this hasp is also taken inside with you in order to keep someone from easily placing a lock on it while you are inside. By supplying your own lock you ensure that you are the only one with a key - and you can easily change the lock if your keys are compromised.
  • The door is constructed with an envelope of 3/16 inch steel plate - but after you hang it in place, you fill it with concrete - no forms necessary - the skins are in place. This construction method keeps the door relatively light for installation - and once it is filled with cured concrete, it has a lot of dense mass between you and whatever fallout is outside your shelter. It also helps to prevent anyone from using a cutting torch to gain access through the door because concrete doesn't "burn."
  • The massive hinges have 1.375 inch shafts captured by bronze bushings that are packed with grease - and they feature grease zerks so that you can keep them lubricated for smooth, effortless opening of the finished weight of 2,100 pounds. The hinges alone weigh 30 pounds.
  • There is a one-way viewer built into the door so you can see what is happening outside.
  • The door has been engineered to withstand a "rebound load." That is a vacuum force sucking the door outward right after the blast wave passes over. A detonation blasts all the atmosphere outward from the epicenter, creating a vacuum. This vacuum can be as deadly as the high-pressure blast wave. That is why our blast doors have the rebound load rating and our automatic blast valves are double acting.

We have engineered and built many custom doors, including:

  • A double blast door with inside and outside latches for an international chemical manufacturer to protect their workers in one of their production plants.
  • A custom blast door for a large American munition manufacturer that is used to protect data logging computers inside a bunker adjacent to a test facility. This door get challenged with repeated detonations of high explosives.
  • Two doors for a large zoo that are used in the rhinoceros and hippopotamus enclosure.

All of our blast doors are pre-hung on a steel frame that are pre-drilled for the included heavy duty wedge anchor Thunderstuds. This allows you to install this door after you pour your concrete.

The doors are shipped by truck line to your location. We can specify that the delivery truck has a drop gate so the delivery is on the ground exactly where you want it. The 32 x 72 inch doors have a dry weight of 575 pounds, including the shipping blocks.

We never release any contact information about our customers to anyone for any reason. This discretion ensures that nobody knows about your shelter - unless you tell them.

 


A blast door installed discretely in a home

 

Remember the other critical blast protection equipment - all of it rated for 50 PSI:


Double acting automatic Blast Valves

 


Blast resistant steel ventilation ducts

 

And the best NBC air filtration equipment:


ASR-100-AV-NBC Safe Cell
Nuclear, Biological, and Chemical
Air Filtration System

Features:

 

 

Listen ...

... to the message that was left on our answering service from a satisfied customer who installed this Blast Door ->

Message.mp3
Turn it up - low volume.
Some players will cut short the file when playing back - right click to download - it's worth listening to!

He also wrote this:

"The door went in very easy and operates well ... thanks again for you patience and professionalism. I used Ames Research for all of the waterproofing and interior coatings. Both of you guys handle business in the same manner. Great companies with great products."

 

 

Blast Hatch


click image to enlarge

 
Blast Hatch
Part number: ASR-50-BH
Price: $3,395.00
Status: Special order item
Please contact ASR to order
See terms of sales for more information
 

 

 


Blast hatch after being primered

 


Blast hatch ready to ship

 

This hatch is mounted horizontally. It features a gas charged damper that aids in opening. The hasp can be locked in the open or closed position with a user-supplied paddle lock.

The opening size is 32 by 24 inches.

For more information on the blast hatch, please see the installation and operation manual (PDF):

 

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Contact Information:

Mailing address
  868 Murdock Drive
Oakland, OR 97462
Telephone
  541-459-1806
FAX
  503-212-6695
Sales manager
  sales@mailasr.com
Engineering department
  info@mailasr.com
Alternative e-mail
  americansaferoom@gmail.com
Other ASR websites
  AmericanSafeRoom.com
AmericanIsolationRoom.com