EFD 782RA INSTALLATION GUIDE

Introduction

The 782RA is a precision, air-actuated spray valve that
produces a narrow radial output ideal for coating the inte­riors of cylinders. LVLP (low volume low pressure) air is
used to atomize the fluid, while a precision air motor
drives a rotating air cap that produces the radial output.

The 782RA valve has a 5.6 cm (2.2”) extended rotor air
cap that will reach inside cylinders with a minimum inner
diameter of 2.5 cm (1.0”). The valve is simple to use and
will operate many millions of cycles without maintenance.

782RA Spray Valve

INSTALLATION GUIDE

Rotor

Fluid inlet
fitting

Air cylinder
body

Fluid supply line

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

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5

Installation

1. Mount valve using the 1/4-28

UNF tapped hole on the air
cylinder body.

2. Connect the fluid feed hose to

the reservoir outlet and the
valve-inlet port using the
appropriate fittings (supplied).

3. Connect the 4 mm diameter

air hoses from the valve to the
controller. The white goes to
the “A” port and the black
goes to the “B” port.

4. Connect the 6 mm diameter

air hoses from the motor to
the air preparation assembly.
The white connects to the
control valve. The black
connects to the motor speed
control fitting.

5. Fill the fluid reservoir. After

filling, secure the cover and
connect the reservoir air pres­sure regulator to the air tee
using the flexible air line (sup­plied). Attach the black male
quick-connect on the air line
to the reservoir regulator and
then attach the white quick­connect to the air tee. To
pressurize the system, slide
the shut-off valve on the air
line toward the fluid reservoir.

6. Set the reservoir pressure reg-

ulator according to fluid vis­cosity, to low for thin fluids 1
to 3 psi (0.07 to 0.2 bar) and
higher for thick fluids.

7. Set the needle stroke control

at one turn open. This is a
starting point. Final setting will
be determined by the desired
flow rate.

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.

Output A

Output B

3

5

1

7

2

6

Air Preparation Assembly: See pages 6 – 7,
ValveMate 7060RA Controller Operating Manual.

To pressurize

To exhaust

®

VALVEMATE

A NORDSON COMPANY

7060RA

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