Nordson-EFD-725HF-Installation-Guide.pdf - 第4页
725HF High Flow Series Dispense Valves | Installation Guide 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.co…
725HF High Flow Series Dispense Valves | Installation Guide
2 www.nordsonefd.com info@nordsonefd.com +1-401-431-7000 Sales and service of Nordson EFD dispensing systems are available worldwide.
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.
Do not thread fluid inlet fittings too far
into the valve. Doing so can obstruct
the piston shaft, causing leakage, poor
dispensing performance, and damage to
the valve.
CAUTION
1. Connect the fluid feed hose to the fluid
inlet fitting (#7021038) installed for use
with 3/8" OD tubing and reservoir.
2. Connect the fluid supply line to reservoir.
3. Connect valve control air hose to
ValveMate
™
8000 (solenoid pack) 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 pressure or changing dispensing
tip or nozzle.
Installation
Important Note: Set desired deposit size by adjusting valve open time. Refer to valve controller operating manual.
7
1
1
1
5
6
4
3
2
8
725HF High Flow Series Dispense Valves | Installation Guide
3www.nordsonefd.com info@nordsonefd.com +1-401-431-7000 Sales and service of Nordson EFD dispensing systems are available worldwide.
closedopen
How the Valve Operates
Input air pressure at 4.8 bar (70 psi)
*
forces
the internal piston
1
to move down,
causing the diaphragm seal
2
to deflect
and the sealing head
3
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.
*
For stripes and lines, input air pressure
can be lowered to eliminate opening
surge.
The primary control of deposit size is the valve open time.
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, stroke adjustment setting, tip
size and fluid viscosity.
ValveMate Concept
The ValveMate 8000 provides easy adjustment
of valve output for maximum end-user
convenience and efficiency. Valve open time is
the primary control of deposit. The 8000 puts
push-button adjustment of valve open time
where it needs to be—at the valve.
The ValveMate 8000 features micro-processor
circuity for extremely precise control of
deposit size. Feed lines can be purged, initial
deposit sizes set, and adjustments made quickly
and easily at the dispensing station, without stopping the
production line.
Important Note: Order your 1, 2, 3 or 4
solenoid manifold block assembly separately.
Consult EFD for recommendations.
1
2
3
2
3
725HF High Flow Series Dispense Valves | Installation Guide
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
©2022 Nordson Corporation 7026828 v112922
Specifications
General
Size: 90.2 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: 4.8–6.2 bar (70–90 psi)
Maximum fluid pressure: 7.0 bar (100 psi)
Maximum operating temperature: 43° C (110° F)
725HF-SS
Weight: 295 g (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 g (6.4 oz)
Shaft and sealing head screw: PTFE-coated 303 stainless steel
Fluid body and cap: inert acetal copolymer
*Ultra High Molecular Weight
For consistent dispense valve operation and easy adjustment
of valve output, Nordson EFD recommends using the
ValveMate 8000 controller on all automatic, semi-automatic
and benchtop applications.
Nordson EFD automated dispensing systems integrate
with ValveMate controllers for operating all pneumatic and
BackPack
™
dispense valves.
Contact Nordson EFD for details.