Join our mailing list!



Knowledge Base:  
You are here: Knowledge Base > Application Examples
Application guide - conformal coating spray valve to PCB (printed circuit boards)
Last Updated: 31/12/2011

Application guide - conformal coating spray valve to PCB (printed circuit boards)

 

Customers applying conformal coating material onto the surface of an assembled printed circuit board to provide protection against moisture, dust and corrosion from extreme environments.


Solution to use a TS5540-046R precision spray valve, TS500R digital valve controller and TS1258 pressure pot. Boards can be sprayed at close proximity with low pressure to eliminate overspray and reduce fumes. Micro control over spray pattern to ensure zero mess. Used either by linking to a parent machine (PLC) and connecting via the I/O port. Or using the supplied foot pedal for manual control. Deposits can be timed to ensure consistency.


The valve is compact and therefore easily positioned above, to the side or below the work piece. For multiple valve installations, a manifold is used. Stroke adjustment on each valve can be used to fine tune the accuracy. These valves can run a high speed repeatable deposits or on continuous flow. Black fluid lines and tubing can be used if glues are easily affected by any light.

 



System supplied with a selection of components including fluid lines connectors, tips, tubes, caps and fittings. Supplied with universal power supply, airline connection kit, foot pedal, valve mounting bracket, user guide.

Parts used: TS5540-046R stainless steel spray valve round pattern nozzle, TS500R universal controller, TS1258 pressure pot 0-100 psi regulator, TSD126-336PK fluid lines.


Was this article helpful?

Comments:
 

Related Articles
 > Application guide - solder paste dots to PCBs using digital timed syringe dispenser
 > Application guide - UV lacquer to DVD discs using diaphragm valve system
 > Application guide - gasketing beads of silicones and sealants form in place
 > Application guide - solder paste dispensing automated assembly high speed
 > Application guide - beads of Cyanoacrylate adhesives from 500 gram bottles
 > Application guide - beads of viscous grease to lubricate parts
 > Application guide - deposits of Cyanoacrylate adhesives to bond speaker wires
 > Application guide - liquid filling of vials and bottles
 > Application guide - high pressure gasket beads of silicone and sealants
 > Metal stamping industry applications
 > Automotive industry applications
 > Consumer products industry applications
 > Electronics assembly industry applications
 > Food processing industry applications
 > Medical device industry applications
 > Packaging industry applications
 > Typical Valve Application Examples