Useful Tips

What can be done from a decommissioned fire extinguisher?


Cases of portable fire extinguishers are designed for 10 years, but in practice, after appropriate tests, they are rejected earlier. As a result, they turn into ordinary scrap metal. But the craftsmen think differently and “prolonged” their life thanks to their use in various crafts.

A cylinder of a non-working fire extinguisher, in the absence of damage and without corrosion nests, can be an excellent receiver for a homemade homemade compressor. Usually use a carbon dioxide fire extinguisher bottle with a volume of over 10 liters.

The choice is not accidental. Capacities are made by casting, because they are new designed for a pressure of 1000 atmospheres and even used containers are characterized by significant strength and safety.

First, the container is inspected and made sure that there is no seam on it, the fire extinguisher is empty, the locking and starting device (ZPU) is planted on the thread three quarters of an inch. After this, the ZPU is unscrewed. Inspect the surface of the cylinder inside - if they detect foci of corrosion, clean them. Remove the paint from the container with a grinder, primer it in a new way and paint it.

Next, begin the assembly. Screw the water crosspiece into place using the FUM tape, then the connection is additionally sealed with an oil and petrol resistant sealant. The upper branch pipe of the crosspiece is equipped with a pressure switch, one of the side ones with a fitting (later an oil-resistant hose is attached to it), the second side one with an oxygen reducer, which is equipped with a shut-off valve. The latter is needed to smooth pressure surges, to obtain a uniform air stream at the outlet.

The receiver is assembled. It is tied with a metal frame, which is equipped with an electric motor with a supercharger.

A good steam generator is made from a fire extinguisher, which is used to clean parts with steam. Prepare pre-balloon, as described above. After that, a sweep is screwed into place of the ZPU, through which the water tank is filled inside, and then a stream of steam is obtained. The joints are sealed with paronite gaskets that are resistant to elevated temperatures.

Steam is supplied through a special sleeve-hose attached to the squeegee. The free end is equipped with a tapering nozzle - it increases the vapor pressure at the outlet and its exit speed.

An interesting alteration of a fire extinguisher into a potbelly stove. Remove the ZPU from the tank, cut off the neck within the tapering part. As a result, an even cylinder remains, in which an open base is closed with a sheet of metal. When placing the container vertically, it will play the role of a heating surface on which food can be heated.

Two cutouts are made in the lower half of the container: top for the door, bottom for the blower. Cut pieces are mounted on hinges, making doors out of them (they are provided with handles). Between the blower and the combustion chamber, a grid is installed across. From below, the cylinder is equipped with support legs.

A hole is cut out in the upper base, a piece of pipe is welded vertically. A chimney is installed on it.

Fire extinguisher cylinder air receiver

For industrial use, such a container cannot be used, but in everyday life it is quite possible. Metal vessels that withstand significant pressure, this is not a cheap pleasure. You can make a receiver from a fire extinguisher for a household compressor, which is always in demand in the garage and is almost as good as factory analogues. For this purpose, a cylinder from a carbon dioxide fire extinguisher with a capacity of at least ten liters is suitable, the only way it will be possible to ensure uniform air pressure at the outlet.

The fact is that carbon dioxide fire extinguishers are equipped with cast cylinders, this can withstand pressure up to 1000 atmospheres. Before use, make sure that the container is really seamless, the locking and starting device (ZPU) is equipped with a ¾ inch thread, and the fire extinguisher itself is empty, and then disconnect the ZPU from the cylinder. The inner surface of the container must be carefully inspected for signs of corrosion and, if necessary, cleaned.

Making a receiver from a fire extinguisher with your own hands can be no less spectacular than if it were a factory assembly. The appearance will become more aesthetic if you remove the old paint from the bottle with a grinder, then prime and coat with a new one.

  • Instead of a screwed-up screw seal, a water cross must be screwed into the neck of the cylinder; to seal the threaded joints, hereinafter, the FUM sealing tape should be used, and an oil-and-petroleum-resistant sealant should be applied over it.
  • A pressure switch should be connected to the upper outlet of the crosspiece, and a check valve with a fitting under the oil and gas resistant hose should be connected to one of the side ones.
  • An oxygen reducer with a shut-off valve is connected to the remaining output. The reducer allows you to smooth out pressure surges and get a dense stream of air.
  • When the receiver is assembled, a metal frame is welded onto it, where the electric motor with a supercharger is mounted.

Fire extinguisher steam generator

Making a steam generator from a fire extinguisher with your own hands will also not be difficult, since the main component - a reliable tank is already available. It is used to produce the steam necessary for cleaning parts.

It is necessary to get rid of the ZPU, clean the inner surface of corrosion, and then screw the throat into the neck. Through it, liquid will be poured and steam will also leave from here. To seal threaded joints, paronite gaskets that are resistant to high temperature and FUM tape are used.

To supply steam, a special hose-hose is used, at the end of which it is necessary to fit a narrowing nozzle, which will increase the flow rate at the outlet and its pressure.

How to make a fire extinguisher stove

What can be done from a fire extinguisher while minimally wasting on supplies? The remaining old cylinders can be used to make a stove. This rather simple device is ideal for heating in an unheated garage, in a tent and other similar cases.

Before manufacturing, it is necessary to unscrew the ZPU, and then cut off the narrowing neck with a grinder or acetylene cutter, so that only an even cylinder remains. A plate corresponding to the diameter of the cylinder is cut out of a sheet of metal and is welded to the place of cut of the cone. The result is a flat heating surface used to heat food.

A rectangular hole is cut out slightly below the middle of the cylinder and a blower hole is located near the bottom of the slightly smaller size. As doors, you can use cut pieces of the cylinder, you only need to weld the canopies and handles. From below, supports are welded to the cylinder, and a round hole for the chimney is cut from the side of the opposite door. The adapter for the chimney can be made independently or purchased ready-made and welded around the hole.

A furnace from a fire extinguisher, like any other, will work much more efficiently with a high pipe.

The chimney is purchased in the form of individual segments made of sheet steel, so if the furnace is planned to be moved, it can always be assembled in a new place. If the stove is installed stationary, then it is advisable to install a corrugated pipe.

A lot of other things useful in the household can be made from decommissioned fire extinguishers, since the steel used for casting cylinders has high-quality strength characteristics.

When starting to manufacture something, you should definitely make sure that there is no extinguishing composition in the cylinder by pressing on the ZPU and only then proceed to work.