Explosion-proof pumps



Pumps - is the equipment used in a variety of industrial processes. Some equipment comes into contact with flammable substances. Взрывозащищенный Pump - unit is specially designed with a view to reduce the possibility of fire or explosion subsequently minimized. The quality of the equipment, of course, imposed particularly strict requirements. Types of protection to prevent the risk of explosion in the first place, try to eliminate the occurrence of an ignition source. Explosion-proof pumps are designed so not to become such a source. To do this, use a number of methods:
  • Security designs. The main objective in the design of the explosion-proof pump - is to eliminate ignition in contact with superheated element of the instrument, or arising in him a spark. Particular attention is paid to moving parts of the pump.
  • Use electrical circuits which do not cause dangerous sparks. To provide protection in electrical circuits used instrument current, voltage which does not allow the discharge occur, capable to ignite a combustible mixture.
  • explosion-proof shell. The point of this approach is to keep the explosion inside the equipment and do not let him get out. To do this, the design must be both high strength (ability to contain the explosion without changing shape), sealed, but have special outlets for the gases formed by the explosion. The main condition is to exit through a special valve or gaps gas had time to cool, and did not cause ignition of the surrounding explosive atmosphere.

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