Advance Tech Service [P] Ltd. Offers Air Pulse Dispenser with Vacuum Control for Thin Fluids. Advance Tech Service [P] Ltd. Received EFY Award in Soldering Desoldering category. Air Pulse Dispenser with Vacuum Control for Thin Fluids is designed to dispense watery fluids to thick pastes. It is a durable workhorse that provides savings in assembling process. Air Pulse Dispenser with Vacuum Control for Thin Fluids dispenses all assembly fluids. The internal voltage of the machine is 24 VDC and Foot Pedal is 5VDC.