EFD 790 INSTALLATION GUIDE

Introduction

The 790 is a precision dispense valve specifically
designed for metering controlled deposits of solder
pastes, thick sealants and other particle-filled materials.

By combining screw-feed principles with precise time,
pressure and dispensing control, the 790 valve is able to
provide accurate, repeatable deposits without damaging
the metal particles of the solder. These features are not
possible with any other type of conventional control valve.

790 Dispense Valve

INSTALLATION GUIDE

USA: 800-556-3484 or [phone]
Europe: 0800 585733 or [phone]
Asia: [phone]
[e-mail] www.efd-inc.com

Electronic pdf files of EFD®manuals are also available at
www.efd-inc.com/manuals.html.

®

A NORDSON COMPANY

Power cable

Motor chamber

Fluid feed fitting

Dispensing tip

Barrel
retaining
clamp

Installation

1. Connect the motor lead wire to

the I/0 connector position 7 (white
wire) and position 8 (brown wire).

2. Install the barrel of red purge

compound (supplied) onto the
dispense valve-inlet fitting.

3. Press the barrel into the fitting

while rotating one-half turn
clockwise. Do not overtighten.

4. Attach the yellow end of the

barrel adapter assembly to the
barrel of red purge compound.

5. Install the black quick-connect

into the air output connector
labeled "Constant Pressure.”

6. Install a pink 20 gauge dispens-

ing tip (supplied, part #5120-1/4)
onto the valve outlet.

Prior to installing this valve, please
read the associated reservoir and
valve controller operating instruc­tions to become familiar with the
operation of all components of the
dispensing system.

1

4

5

2

3

6

VALVEMATE

7090

M

M