Description
Blast Hatch with a Collar
- This Blast Hatch is designed for horizontal installation
- Spring loaded lift assistance cylinders for opening
- Spring loaded shock absorbers to keep door frame from closing uncontrollably
- 3/8 inch thick steel door leaf
- 3 inch square tubing for reinforcement
- 3/4 inch steel plate internal hinges
- Removable hydraulic jack, this is extremely useful in the event that debris falls on your hatch opening while you are inside.
- Removable lock hasp with NBC seal for self rescue
- 2.5” thick concrete filled lid
- 36” inside diameter of collar
