EFD 741V INSTALLATION GUIDE

Introduction

The 741V Series dispense valve is simple to use and will
operate many millions of cycles without maintenance.

The 741V Series valves are designed to apply low-viscosity
fluids with accurate, extremely close repeat deposit control.
The 741V and 741V-SS valves are ideal for use on automatic
assembly machines.

Each valve comes equipped with a 5-foot actuating air hose
and male quick-connect, adjustable stroke control and fluid
inlet fitting. The dispensing tip adapter features a SafetyLok

™

collar for secure dispensing tip attachment.

The 741V fluid body and air cylinder body are hard-coated
aluminum. The 741V-SS valve model has a Type 303 stainless
steel fluid body and air cylinder body.

741V Series Dispense Valve

INSTALLATION GUIDE

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

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

®

A NORDSON COMPANY

Control
air hose

Fluid
supply line

Stroke control knob

Stroke reference ring

Air cylinder body

Inlet fitting

Fluid body

Tip adapter

Dispensing tip

10

741V Installation

1. Mount valve with an EFD universal

valve mount (#7002VM) or other
fixture.

2. Connect valve control air hose to

ValveMate

™

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

3. Connect the fluid supply line to

the fluid inlet fitting (#7543BP is
installed for use with 1/4” OD
tubing) and to the reservoir.

4. To prevent interference with

machine parts, the fluid body
can be rotated to any new 45º
position. Remove the two screws
that attach the fluid body to the air
cylinder body, change position,
reinstall and tighten screws.

5. Install appropriate size dispensing

tip. The enclosed dispensing tip
adapter accepts EFD SafetyLok
dispensing tips. Use small diameter
tips for thin fluids and larger tips
for thick fluids.

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 needle stroke, starting at
one full turn open.

9. Set valve control air pressure at

70 psi (4.8 bar). Refer to valve
controller operating manual.

10.

Open the valve with an air pulse long
enough to fill the valve and start fluid
flow. Test the dispensed amount
with a nominal time setting.

5

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.

Open

Close

4

3

Set desired deposit size by adjusting reservoir
pressure, needle stroke and valve open time.

11

Air Output

ut

Exhaust

r

2

6

1

8

9

7

To exhaust

To pressurize

A NORDSON COMPANY

VALVEMATE
7000

®

Steady

Test

Run

Setup Program

5

Time Set

Fast Slow

Clear

Purge

Fast Slow

Time Set

Pressure

POWER

RUN

SETUP

CYCLE

STOP

Time

20

0