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

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®

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

How the Valve Operates

Input air pressure at 70 psi (4.8 bar)
forces the internal piston ➀➀to move.

➁➁

The piston rod pulls open the

diaphragm seal,

➂➂

permitting fluid
flow. When the input air pressure is
relieved, the spring retracts the piston
and the diaphragm closes.

The primary control of deposit size is the valve open time.

ValveMate Concept

The ValveMate 7000 provides easy
adjustment of valve output for maximum
end-user convenience and efficiency.
Valve open time is the primary control of
deposit. The 7000 puts push-button
adjustment of valve open time where it
needs to be—at the valve.

Deposit size can be programmed by
pressing the PROGRAM button in the
SETUP mode. This affords an easy
starting point for selecting deposit size.

Note: The EFD Ultra®TT 325 and 525
XYZ automated dispensing systems have
integrated ValveMate controllers for
operating all EFD dispense valves.

The amount of fluid dispensed will
depend on the time the valve is open,
the viscosity of the fluid, the air pressure
in the fluid reservoir, the dispensing tip
size and the diaphragm stroke.

Flow rate is a function of reservoir
pressure, tip size and fluid viscosity.

closed

➁➁
➂➂

open closed open

To calibrate the valve, the “0” mark on
the stroke reference ring should align
with one of the two reference marks
on the valve body. When the set-screw
is tightened, the valve is calibrated.

➀➀

➂➂

➁➁

➀➀

➁➁
➂➂

➀➀

➂➂

➁➁

➀➀

752V and 752V-UH Fluid Flow 750V and 751V Fluid Flow

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

Steady

Test

A NORDSON COMPANY

VALVEMATE
7000

®

Run

Setup Program

Rear Panel

air input
power input
(voltage selector)
air output to valve
I/O connector with alarm
output (<60 psi)
connector for
optional foot pedal

Purge

Time Set

Clear

Fast Slow

Fast Slow

Time Set

POWER

RUN

SETUP

CYCLE

Pressure

STOP

Time

Control Pad

set time
timer bypass
display pressure (psi, bar)
TEACH program
test cycle
purge
reset

Function Indicators

Pressure/Time Toggle

Emergency Stop

Specifications

General

Diaphragm: UHMW* polyethylene

Air pressure required: 70 to 90 psi (4.8 to 6.2 bar)

Maximum fluid pressure: 70 psi (4.8 bar)

Maximum operating temperature: 43°C (110°F)

Mounting: (1) 10-32 UNF tapped hole

750V and 750V-SS

Size: 64.7 mm length x 23.8 mm diameter

(2.55” x 0.94” )

Weight: 750V – 93.5 grams (3.30 oz)

750V-SS – 165.8 grams (5.85 oz)

Air cylinder body: 750V – Hard-coated aluminum

750V-SS – Type 303 stainless
steel

Fluid body: UHMW* polyethylene

Free flow orifice: 1.57 mm diameter (0.062”)

Fluid inlet thread: 1/4-28 UNF

Output thread: 5/16-28 UNF

Tip adapter: Polypropylene

751V

Size: 64.7 mm length x 26.9 mm diameter

(2.55” x 1.06”)

Weight: 101.7 grams (3.59 oz)

Air cylinder body: Hard-coated aluminum

Fluid body: Acetal copolymer

Free flow orifice: 2.03 mm diameter (0.08”)

Fluid inlet thread: 1/8 NPT female

Output thread: 1/8 NPT female

Tip adapter: Nylon

752V, 752V-UH/752V-SS and 752V-UHSS

Size: 80.7 mm length x 26.9 mm diameter

(3.18” x 1.06”)

Weight: 752V and 752V-UH – 99.5 grams (3.51 oz)

752V-SS and 752V-UHSS – 181.9 grams
(6.42 oz)

Air cylinder body: 752V and 752V-UH – Hard-coated

aluminum. 752V-SS and 752V­UHSS – Type 303 stainless steel

Fluid body: 752V and 752V-SS – Acetal copolymer

752V-UH and 752V-UHSS – UHMW*
polyethylene

Free flow orifice: 2.5 mm diameter (0.10”)

Fluid inlet thread: 1/8 NPT female

Output thread: 1/4-28 UNF

Tip adapter: Polypropylene

752V-DVD and 752V-UHDVD

Size: 80.7 mm length x 26.9 mm diameter

(3.18” x 1.06”)

Weight: 752V-DVD – 172.9 grams (6.1 oz)

752V-UHDVD – 99.5 grams (3.51 oz)

Air cylinder body: Type 303 stainless steel

Fluid body: 752V-DVD – Type 303 stainless steel

752V-UHDVD – UHMW* polyethylene

Free flow orifice: 2.5 mm diameter (0.10”)

Fluid inlet thread: 1/8 NPT female

Output thread: 1/4-28 UNF 752V-UHDVD

752V-DVD (not applicable)

Tip adapter: 752V-DVD – Aluminum

752V-UHDVD – Polypropylene

* Ultra High Molecular Weight

For consistent dispense valve operation and easy adjustment of
valve output, EFD recommends using the ValveMate 7000 con­troller on all automatic, semi-automatic and benchtop applica­tions.

The EFD Ultra TT Series positioning systems incorporate dispens­ing control into the main system.

Contact the EFD Dispense Valve Systems Group for details.

For EFD sales and service in over 30 countries,
contact EFD or go to www.efd-inc.com/contact

EFD, Inc.

East Providence, RI USA
800-556-3484; [phone] (outside the USA)
[e-mail] www.efd-inc.com

EFD International Inc.

Dunstable, Bedfordshire, UK
0800 585733 or [phone]
Ireland 00800 8272 9444
[e-mail] www.efd-inc.com

EFD, Inc., Asia

China: [phone]
[e-mail] www.efd-inc.com/cn
Singapore: [phone] [e-mail]

©2006 Nordson Corporation 750-INSTALL-01 v062606

®

A NORDSON COMPANY