Square Wave™ Non-Contact Dispense Valve

Square Wave™ Non-Contact Dispense Valve

The Square Wave 745NC is a high speed, non-contact dispense valve developed for the photovoltaic (PV) industry. It applies controlled amounts of liquid flux on cell bus bars and the solder-coated ribbon used to connect PV wafers - at cycle rates up to 500Hz with volume output as small as 0.15µL.

Related Solutions

Nordson EFD products are currently found throughout the photovoltaics industry, in a multitude of fluid dispensing applications.


  • Actuation speeds as low as 2 ms
  • Compact design
  • Light weight and easy end-of-arm installation
  • Low-maintenance industrial design
  • Small wetted path minimizes fluid waste
  • Adjustable flow and drip-free shutoff
  • Easy to service

Compatible Fluids

  • Water-soluble liquid flux
  • Solvent-based liquid flux