741V Needle Valves

The 741V Series needle valve design applies low viscosity assembly fluids with accurate, extremely close repeat deposit control.

Overview
During operation, controlled pulsed air acts on the piston to withdraw the needle a preset distance from the needle seat to provide exact, repeatable fluid flow. The stainless steel needle seats in the tip adapter, virtually eliminating dead fluid volume between shots.
The Nordson EFD needle valve features adjustable fluid flow control.