All your questions about blast doors can be found below. If you have a question that cannot be answered here, please contact us at: 1-866-203-5060
Q. is the difference between Pressure resistant and Blast resistant doors?
A. Pressure resistance refers to a pressure load applied over a long duration (seconds, minutes, or longer), and where the pressure loading decay is removed from the door over a long duration. Blast resistance refers to a high pressure shock of very short duration (milliseconds), with pressures decaying with distance and time.
Q. What is the difference between seated pressure and unseated pressure?
A. Seated pressure loading acts to seat the door into the frame against the stops. Unseated pressure acts to unseat the door away from the stops where hardware is an integral part of the pressure resistance. This is an important consideration in the design of both pressure resistant and blast resistant doors and it has lead to the design of special hinges and locking devices.
Q. What is fragmentation?
A. Fragmentation is the result of an explosion. Fragments that are heavy and traveling at a high velocity may penetrate a door or window, depending on thickness and other characteristics. Fragmentation resistance should be considered in your specifications for a blast resistant door or window product.
Q. Are Krieger's blast resistant doors fire rated?
A. Krieger's blast resistant doors are available in UL fire ratings up to and including 3 hours.
Q. Can blast doors have vision lights (windows)?
A. Calculated and certified glass or glass/polycarbonate glazing materials are available.
Q. Do Krieger doors conform to handicap operating requirements?
A. Yes.
Q. Does Krieger offer installation support?
A. Krieger offers various technical and field services such as installation crew training, turn key assembly, troubleshooting and field testing.
Q. What is the largest door size Krieger can manufacture?
A. There is no limit to the size of door or window Krieger can manufacture.
Q. Can you manufacture a frame that will work with my wall?
A. Krieger designs and fabricates frames that meet the requirements of your walls.
Q. My walls are all ready up, what can I do?
A. Not a problem, ask about our slip-in design?
Q. Do you have a local representative serving my area?
A. Krieger has branch sales offices and local representatives throughout the nation. To locate the branch office serving your area click here.
Q. Do you have a product binder and how can I receive one?
A. Request Krieger's product binder by filing out the on-line form located here.
Q. Can I get CAD drawings and technical specs?
A. All Door and window models featured on this Web site have downloadable CAD drawings and technical specifications. If you do not see a model that fits your needs, please contact your local sales representative to get customized CAD drawings and specs.
Q. What is your delivery time?
A. Our standard lead-time is 6 weeks in production, however lead times can change depending on complexities and scope. Please contact your local representative to discuss your requirements.
Q. Do you have a quick ship program?
A. Performance times are subject to revision on a weekly basis. If quick ship is critical, please contact your sales representative for expedited fabrication. (Subject to availability.)
Q. Do you guarantee the performance of your blast doors and windows?
A. Yes, Krieger products come with a guaranteed.  Review our Guarantee (PDF)
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