Nordson-EFD-736HPA-NV-Operating-Manual.pdf - 第10页
For Nordson EFD sales and service in over 40 countries, contact Nordson EFD or go to www.nordsonefd.com. Global 800-556-3484; +1-401-431-7000 info@nordsonefd.com Europe 00800 7001 7001 infoefd.europe@nordsonefd.com Asia …
736HPA-NV | Operating Manual
8 www.nordsonefd.com info@nordsonefd.com +1-401-431-7000 Sales and service of Nordson EFD dispensing systems are available worldwide.
Accessories
1/4 NPT Metal Nozzles
Stainless steel, 38.1 mm (1.5") long. ID Size
Part # Gauge mm (in.)
7014850 7 3.81 (0.150)
7014851 8 3.43 (0.135)
7014848 10 2.69 (0.106)
7014842 12 2.16 (0.085)
7014844 14 1.60 (0.063)
7014846 16 1.20 (0.047)
Polyethylene Nozzles
Plastic nozzles with 1/4 NPT thread. Nozzles may be cut
or shaped as required. Supplied (10) nozzles per package.
Part # Size
7018555 63.5 mm long x 3.2 mm
opening (2 1/2" x 1/8")
7018557 63.5 mm long x 1.6 mm
opening (2 1/2" x 1/16")
7018559 101.6 mm long x 1.6 mm
opening (4" x 1/16")
7018561 101.6 mm long x 0.8 mm
opening (4" x 1/32")
Dispensing Tip Adapter
Accepts all EFD dispensing tips.
Part # Description
7021197 Adapter for use with metal tips
7021186 Adapter for use with disposable plastic tips
Universal Valve Mount
Use with all EFD valves for easy valve mounting.
Part # Description
7020507 Universal valve mount
Accessories (continued)
Service
Refer to the 736HPA-NV Service & Replacement Parts Manual for service procedures, including valve disassembly /
reassembly.
Valve Part Numbers
Part # Description
7013449 736HPA-NV valve, chromium-plated spool
7028951 736HPA-NV valve, titanium nitride-coated spool
Replacement Parts
Refer to the 736HPA-NV Service & Replacement Parts Manual for kits that include replacement parts.
736HPA-NV | Operating Manual
9www.nordsonefd.com info@nordsonefd.com +1-401-431-7000 Sales and service of Nordson EFD dispensing systems are available worldwide.
No fluid flow
• If the valve operating pressure is too low, the valve will
not open. Increase air pressure to 4.8 bar (70psi) for
timed shots and to 2.7 bar (40 psi) minimum for stripes.
• The fluid pressure may not be high enough. Increase
pressure.
• The dispensing tip may be clogged. Replace tip.
• Fluid may have solidified in the fluid body. Clean the fluid
body.
Fluid drools after the valve closes, eventually
stopping
• This is caused by air trapped in the outlet section of the
fluid body or if the fluid has entrapped air. The air will
expand after the valve closes, causing extrusion until the
air reaches atmospheric pressure. Purge the valve by
dispensing at a steady flow until air is removed.
• If the fluid has entrapped air, degas it before dispensing.
Fluid drips at a steady rate after the valve
closes
• A steady drip indicates failure of the seal due to particle
build-up or wear. Replace the seal.
• Fluid leakage can also occur when a fluid inlet fitting
is threaded too far into the valve, thus obstructing the
piston shaft. Ensure that the fluid inlet fitting is properly
installed.
Valve responds slowly when opening and
closing
• Valve response is related to control air line length and
size. EFD valves are supplied with 5 feet of 4mm (5/32")
ID tubing attached. Any additional length or size change
will affect response time. Ensure that the length and size
have not been changed.
Fluid flows out above upper seal
• Fluid flowing out above the upper seal indicates a worn
upper seal. Replace the seal.
Inconsistent deposits
• Inconsistent deposits can result if the air pressure
controlling the valve and / or fluid pressure is fluctuating,
or if the valve operating pressure is less than 4.8bar
(70 psi). Check air pressures and the valve operating
pressure.
• The time the valve is open must be consistent. Ensure
that the valve controller is providing a consistent output.
Troubleshooting
For Nordson EFD sales and service in over
40 countries, contact Nordson EFD or go to
www.nordsonefd.com.
Global
800-556-3484; +1-401-431-7000
info@nordsonefd.com
Europe
00800 7001 7001
infoefd.europe@nordsonefd.com
Asia
China: +86 (21) 3866 9006; china@nordsonefd.com
India: +91 80 4021 3600; india@nordsonefd.com
Japan: +81 03 5762 2760; japan@nordsonefd.com
Korea: +82-31-736-8321; korea@nordsonefd.com
SEAsia: +65 6796 9522; sin-mal@nordsonefd.com
Viton and Hytrel are registered trademarks of E.I. DuPont.
The Wave Design is a trademark of Nordson Corporation.
©2024 Nordson Corporation 7026829 v030624
NORDSON EFD ONE YEAR LIMITED WARRANTY
This Nordson EFD product is warranted for one year from the date of purchase to be free
from defects in material and workmanship (but not against damage caused by misuse,
abrasion, corrosion, negligence, accident, faulty installation, or by dispensing material
incompatible with equipment) when the equipment is installed and operated in accordance
with factory recommendations and instructions.
Nordson EFD will repair or replace free of charge any defective part upon authorized return
of the part prepaid to our factory during the warranty period. The only exceptions are those
parts which normally wear and must be replaced routinely, such as, but not limited to, valve
diaphragms, seals, valve heads, needles, and nozzles.
In no event shall any liability or obligation of Nordson EFD arising from this warranty exceed
the purchase price of the equipment.
Before operation, the user shall determine the suitability of this product for its intended use,
and the user assumes all risk and liability whatsoever in connection therewith. Nordson EFD
makes no warranty of merchantability or fitness for a particular purpose. In no event shall
Nordson EFD be liable for incidental or consequential damages.
This warranty is valid only when oil-free, clean, dry, filtered air is used, where applicable.