EFD 725HF INSTALLATION GUIDE

Introduction

The 725HF Series is simple to use and will operate many
millions of cycles without maintenance.

The unique design of the 725HF Series valve provides a
clean fluid cutoff with pullback for precise fluid application
at high cycle rates.

Each 725HF-SS and 725HF-A valve is shipped with a
dispensing tip adapter, fluid inlet fitting and 5-foot actuating
air hose installed. For high-flow applications, the dispensing
tip adapter can be removed for installation of 1/4 NPT
metal or plastic nozzles.

The 725HF-A is identical to the 725HF-SS, except the
fluid body and cap are acetal copolymer, and the shaft
and the sealing-head screw are Teflon®-coated stainless
steel.

725HF High Flow Series
Dispense Valves

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

supply line

Inlet fitting

Fluid

Control air hose

Air cylinder cap

Air cylinder

Wrench flats

Body cap

Nozzle

Installation

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

9

1. Mount valve with an EFD universal valve

mount (#7002VM) or other fixture.

2. Connect the fluid feed hose to the fluid

inlet fitting (#72608P is installed for use
with 3/8” OD tubing and reservoir.

3. Connect valve control air hose to

ValveMate

™

controller (or other pneumatic

switch) used to control valve open time.

4. Install nozzle to the valve output.

5. Fill reservoir by pouring fluid directly into

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

6. Set reservoir pressure, to low for thin

fluids and higher for thick fluids.

7. Place a cup under the dispensing tip

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

8. Set desired flow rate by adjusting fluid

reservoir or changing dispensing tip or
nozzle.

9. Set desired deposit size by adjusting

valve open time. Refer to valve controller
operating manual.

7

Air Output

Exhaust

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

6

4

2

5

3

8

To exhaust

To pressurize

A NORDSON COMPANY

®

Steady

Test

Run

Setup Program

Time Set

Clear

Fast Slow

POWER

RUN

SETUP

CYCLE

Fast Slow

Time Set

Pressure

STOP

Time

Purge

closed

open

How the Valve Operates

Input air pressure at 70 psi*(4.8 bar)
forces the internal piston ➀➀to move
down, causing the diaphragm seal ➁➁to
deflect and the sealing head

➂➂

to open
and permit fluid flow. When the input air
pressure exhausts, the spring retracts
the piston and the sealing head closes,
stopping the fluid flow and pulling back
a slight amount of fluid.

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 size. 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.

➀➀

➁➁

➁➁

➂➂

➂➂

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 and the dispensing tip size.

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

*

For stripes and lines, input air pressure can
be lowered to eliminate opening surge.

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

Size: 90.1 mm length x 31.1 mm diameter (3.55” x 1.22”)

Valve seal/diaphragm: FDA-approved UHMW* polymer

Air cylinder body: Hard-coated aluminum

Fluid inlet thread: 1/4 NPT female

Output thread: 1/4 NPT female

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

Maximum fluid pressure: 100 psi (6.9 bar)

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

725HF-SS

Weight: 295 grams (10.4 oz)

Shaft and sealing head screw: 303 stainless steel

Fluid body and cap: 303 stainless steel

Mounting hole: 5/16-24

725HF-A

Weight: 181 grams (6.4 oz)

Shaft and sealing head screw: Teflon

®

-coated 303 SS

Fluid body and cap: inert acetal copolymer

* 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]

Teflon is a registered trademark of DuPont.
©2006 Nordson Corporation 725HF-INSTALL-01 v062606

®

A NORDSON COMPANY