Method of supplying powder coating, comprising: using a pump (10) of dense phase powder comprising at least one chamber (12, 14) suministrodotada a valve (Q1, Q2) of dust and a valve (Q3, Q4) powder outlet; perform the following functional sequences (a) to (d) at least once: (a) generating a partial vacuum in the chamber (12, 14) supply to aspirate powder alinterior coating chamber (12, 14) supply through the valve (Q1, Q2) abiertamientras powder inlet valve (Q3, Q4) powder outlet is closed; (B) close the valve (Q1, Q2) of dust and open the valve (Q3, Q4) powder outlet; (C) introducing a compressed gas into the chamber (12, 14) supply to download the derecubrimiento powder chamber (12, 14) supply through the valve (Q3, Q4) output abiertamientras powder valve ( Q1, Q2) powder inlet is closed; and (d) close the valve (Q3, Q4) powder outlet and open the valve (Q1, Q2) powder inlet, wherein, during the segment (a) of cycle or switching segment (d ) cycle segment (a) cycle, a control signal generated by the partial vacuum in the chamber (12, 14) supply with untiempo predetermined delay after generating the control signal that opens the valve is generated (Q1 , Q2) ingress policer powder, as a result of which the accumulation of partial vacuum in the chamber (12, 14) desuministro begins with a defined time delay after opening the valve (Q1, Q2) powder inlet.
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