Pneumatic Tube Fire collar

  Previous article Next article  

The tubes of a pneumatic tube system run by different areas of a building. In the basement, the crawl space, in shafts, in the walls and above ceilings. In order to come from one area to another, there must be a big hole in the wall or floor.
In connection to sound and heat insulation it is recommended that the open space around the tube is filled with insulation. Use preferably no polyurethane foam (PUR). By setting and hardening of the foam the tube will be crushed. It's possible that a carrier can't slide by this narrowing pipe.

If the wall or floor is part of a fire compartmentation (fire separation) then the hole will also have a fire resistant finish. The fire collar is placed around the tube and against the wall. This fire collar comprises a metal enclosure containing a round carbon layer. In a fire situation, the temperature in the room and the tube will rise quickly. At about 115° Celsius the carbon layer will expand and seal the hole in the wall.

This will prevent that flames and toxic (combustible) gases can freely go along the pneumatic tube, into the adjacent room. This is necessary because a very small opening is sufficient, to let not completely burned hot gases through the space between the pipe and the wall to the adjoining room. This allows the adjacent area to also cause fire.

Pneumatic.TubePneumatic Tube, Rohrpost, Buizenpost

Pneumatic Tube Fire collar

  Last updated: 05-01-2019

Pneumatic Tube Fire collar

  Show related articles:

  Pneumatic Tube Calendar

1 April 1877 (147 years ago)
Initial Commissioning Pneumatic Tube Mail Munich, Germany

19 April 1898 (126 years ago)
Underground pneumatic tube mail service connected the central Philadelphia post office with Pennsylvania and Reading terminals

4 April 1910 (114 years ago)
Commissioning Pneumatic Tube Mail Algiers, Algeria

28 April 1950 (73 years ago)
Pneumatic Tube Mail between New York and Brooklyn (mail carried in tubes across the Brooklyn Bridge) ends because of repairs on the bridge and was never restored

1 April 1953 (71 years ago)
Second Re-Commissioning Pneumatic Tube Mail Munich, Germany

30 April 1984 (39 years ago)
Pneumatic Tube Mail system Paris France out of business

View more events