Dry chemical powder Fire Extinguisher it’s Use and Specifications

A DCP (Dry chemical powder Fire Extinguisher) fire extinguisher is a type of fire extinguisher that uses a dry chemical powder as the extinguishing agent. It’s typically used on Class B and C fires which involve flammable liquids and electrical equipment. The dry chemical powder works by creating a barrier between the oxygen in the air and the fuel source, suffocating the fire. It also cools down the burning surface, preventing re-ignition.

DCP extinguishers are usually red in color and have a label with the letters “DCP” on it. They come in different sizes and shapes, from small handheld extinguishers to larger wheeled units.

Technical Specification Of Dry chemical powder Fire Extinguisher :


The specific specifications for a DCP fire extinguisher can vary depending on the manufacturer and model. Some common specifications include:

Capacity: The amount of dry chemical powder stored in the extinguisher. This is usually measured in pounds.
Operating pressure: The pressure at which the extinguisher is designed to operate. This is usually measured in pounds per square inch (PSI).

Discharge time: The length of time it takes to empty the extinguisher. This is usually 15-25 seconds depond upon rating of extinguisher.

Range of discharge: The distance at which the extinguisher can effectively extinguish a fire. This is usually measured in feet.

UL rating: A rating assigned by Underwriters Laboratories (UL) that indicates the extinguisher’s ability to extinguish specific types of fires.

Hose length : The length of hose that is attached to the extinguisher usually 0.6m.

Agent: the type of dry chemical powder used in the extinguisher, which can be ABC , BC or special type powder for metal fire.

Cylinder material : the material of the cylinder of the extinguisher is mild steal.

Temperature range : range of temperature is varying 55+- degree celcius ,the extinguisher can be used in.
It’s important to check the product specifications before purchasing or using any fire extinguisher.

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How to use Dry chemical powder Fire Extinguisher :

Using a Dry chemical powder Fire Extinguisher is similar to using other types of extinguishers:

1- Pull the safety pin at the top of the extinguisher.
2- Aim the nozzle at the base of the fire.
3- Squeeze the handle to release the powder.
4- Sweep the nozzle back and forth across the base of the fire, moving from side to side, until the fire is out.

It’s important to use the appropriate tDry chemical powder Fire Extinguisher for the fire, using a DCP extinguisher on a class A fire would not be effective and may even spread the fire. Also, keep in mind that dry chemical powder can be harmful if inhaled, so be sure to use it in a well-ventilated area.

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