EFD 750 INSTALLATION GUIDE

Introduction

The 750 Series fluid dispense valves are simple to
use and will operate many millions of cycles without
maintenance. The 750 Series incorporates a variety
of compact, precise, adjustable diaphragm valves
for dispensing low to medium viscosity fluids. These
include the 750V, 750V-SS, 751V, 752V, 752V-SS,
752V-UH, 752V-UHSS, 752V-DVD and 752V-UHDVD
models.

All 750 Series valves use the same actuating assembly.
But fluid body styles and diaphragms differ according
to the model. The 752V Series fluid bodys are con­structed with the outlet at the end of the fluid body.
The 750V and 751V fluid bodys are constructed with
the outlet on the side of the fluid body.

Each valve is shipped with a dispensing tip adapter,
fluid inlet fitting and 5-foot actuating air hose installed.

750 Series
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

Stroke control knob

Stroke reference ring

Fluid supply line

Inlet fitting

Control
air hose

Fluid body

Dispensing tip

Installation

Set desired deposit size by adjusting valve open
time. Refer to valve controller operating manual.

11

1. Mount valve with an EFD universal

valve mount (#7002VM) or other fixture.

2. Connect fluid supply line to valve. If

3/8” OD tubing is used, change to
fitting #7610BP supplied.

3. Connect the fluid supply line to reservoir.

The reservoir can accept either OD or
1/4” OD or 3/8” OD tubing using
#62518PT supplied.

4. Connect valve control air hose to

ValveMate

™

controller (or other pneu­matic switch) used to control valve
open time.

5. Choose a dispensing tip—small tips

(20 gauge) for low-viscosity fluids and
larger (14 gauge) for higher viscosities.

6. Fill reservoir by pouring fluid directly

into tank liner or manufacturer’s bottle
placed inside reservoir. Secure cover
prior to setting pressure.

7. Set reservoir pressure to low for thin

fluids and higher for thick fluids.

8. Set the diaphragm stroke starting with

no more than 1/2 turn open.

*

9. Place a cup under the dispensing tip

and actuate the valve until fluid lines,
valve and dispensing tip are free of air.

10. Set desired flow rate by adjusting

fluid reservoir pressure or changing
dispensing tip.

*

Do not overtighten the stroke adjustment knob or
open it more than two full turns. If open more than
two turns, pressurized liquid could force open the
diaphragm seal, resulting in continuous liquid flow.

9

Open

Close

8

Air Output

ut

Exhaust

r

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

7

5

2

6

4

10

3

To exhaust

To pressurize

A NORDSON COMPANY

®

Steady

Test

Run

Setup Program

5

20

0

Time Set

Clear

Fast Slow

POWER

RUN

SETUP

CYCLE

Fast Slow

Time Set

Pressure

STOP

Time

Purge