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781S General Purpose Spray Valves

The 781S Series general purpose spray valve provides exceptional control for reliable, consistent coatings of low- to medium-viscosity fluids using Low Volume Low Pressure (LVLP) technology.

It offers adjustable fluid flow, adjustable nozzle air, and post-air cutoff to provide superior spray control without waste, mess, or overspray. This means fluid goes exactly where it's needed, improving consistency with reduced fluid use and cleanup costs.

Fluid can be reliably dispensed in microliter to milliliter amounts, in round patterns with diameters ranging from 4.3 mm (0.17") to 50.8 mm (2.0"), and in fan patterns up to 165.1 mm (6.5") wide.

Features

  • High transfer efficiency
  • Extremely consistent area of coverage
  • No clogging, dripping, or drying out
  • No overspray, mist, or bounce
  • Adjustable nozzle air

Compatible Fluids

  • Activators
  • Coatings
  • Greases
  • Liquid fluxes
  • Silicones
  • Solvents
  • Inks
  • Oils

The complete system includes the 781S spray valve, ValveMate™ 8040 controller, and fluid reservoir. Integrate with an EFD automated dispensing system for even faster throughput.

For more uniform, narrower spray patterns as small as 1 mm (0.04”) wide check out the 781Mini™ Series spray valve. This valve also features a 60% smaller form factor.


Part Numbers

781S General Purpose Spray Valves
Part # Description Specification
7007031 781S-SS Spray Valve Nozzle size is 1.17 mm (0.046") diameter. Round pattern, narrow angle. All metal parts are passivated 303 stainless steel.
7021616 781S-SS-TR Same as 781S-SS, except with tamper-resist stroke.
7021615 781S-SS-46F Nozzle size is 1.17 mm (0.046") diameter, fan shape. All metal parts are passivated 303 stainless steel.
7021618 781S-SS-WF Same as 781S-SS-46F except wide fan pattern is 2x the width.
7021613 781S-SS-28 Nozzle size is 0.71 mm (0.028") diameter. Round pattern, narrow angle. All metal parts are passivated 303 stainless steel.
7021614 781S-SS-28F Nozzle size is 0.71 mm (.028") diameter, fan shape. All metal parts are passivated 303 stainless steel.
7021611 781S-SS-14 Nozzle size is 0.36 mm (0.014") diameter. Round pattern, narrow angle. All metal parts are passivated 303 stainless steel.
7021612 781S-SS-14F Nozzle size is 0.36 mm (0.014") diameter, fan shape. All metal parts are passivated 303 stainless steel.
7021617 781S-SS-WA Same as 781S-SS except round pattern is 2x as large.