Efd 725-HL User Manual

User’s Guide
725-HL Dispense Gun

The 725-HL dispense gun is a rugged
industrial hand-operated fluid dispensing
valve. The valve incorporates a quick
change fluid body for fast and easy
maintenance. Included with the valve
are two fluid inlet fittings for 1/4" OD or
3/8" OD feed tubing and an assortment
of dispensing tips.

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

Replacement Parts

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

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

©2006 Nordson Corporation 725HL-MAN-01 v062606

A NORDSON COMPANY

#2186BP
Tip adapter

#72543
Fluid body cap with O-ring

#72539
Sealing head
with screw

#72538
Fluid body

#72537
Shaft

#72599
Fluid body adapter

#72590
Diaphragm

#72596
Shaft guide with
O-ring (#72594)

#72597
Push rod

#72593
Spring

#72592
Spring retaining
washer

#72587
Retaining ring

#72589
Handle assembly

A NORDSON COMPANY

Service

Follow the exact sequence below to service the fluid body.

1. Loosen the retaining nut

➀ and remove the fluid body.

2. Insert maintenance rod

➁ and remove fluid body cap ➂.

3. Insert rod

➃ through push rod hole and remove sealing head

➄ with flat screwdriver. Remove rod ➃.

4. Hold rod

➁ and remove the fluid body adapter➅ from the

fluid body.

5. Insert and hold rod ➃ and remove shaft ➆ and diaphragm.

6. Clean fluid body components and replace sealing head and
diaphragm if required.

7. Install diaphragm in direction shown in

Figure 1

. Hold rod ➃

and install shaft; tighten to 15 inch pounds.

8. Apply a film of lubricant to fluid body shoulder “A”. Hold rod

➁ and reinstall adapter ➅.Tighten to 10 foot pounds.

9. Insert and hold rod

➃ and install sealing head; tighten to

15” pounds. Install fluid body cap

➂.

10. Install fluid body onto handle, align body to desired position
and tighten retaining nut ➀.

"A"

➀➅➆➄➂

➁

➃

Figure 1

Maintenance Tools:

1/8" rod (part #7803)
1/8" NPT maintenance rod

(part #72561)
10" adjustable wrench*
flat screwdriver*

*customer supplied

shaft

diaphragm

❶

❸

❷

Operation

1. Install the fluid fitting into the inlet port ❶. Use the 1/4”fitting
for low to medium viscosity fluids and the 3/8” fitting for high
viscosity fluids.

2. Install the appropriate size feed tube to the inlet fitting and
tighten the compression nut to secure. The position of the
inlet fitting can be adjusted. Loosen the fluid body retaining nut

❷,rotate the fluid body to the desired position and tighten the

retaining nut.

3. Apply air pressure to the fluid reservoir.Start with a low setting
of 20 psi (1.4 bar). If using an EFD fluid reservoir, refer to the
User’s Guide for further instructions.

4. Install an appropriate size dispensing tip to the outlet tip adapter

❸. Use large tips for high viscosity materials and small tips

for low viscosity.

5. Pull the trigger to begin fluid flow.Release trigger to stop flow.

6. To achieve desired flow,change the size of the dispensing tip
or adjust the reservoir fluid pressure.

open

closed