closed
open
How the Valve Operates
Input air pressure at 70 psi
*
(4.8 bar)
forces the internal piston
➀
➀
to move
down, causing the diaphragm seal
➁
➁
to
deflect and the sealing head
➂
➂
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.
➀
➀
➁
➁
➁
➁
➂
➂
➂
➂
POWER
RUN
SETUP
CYCLE
STOP
Test
Clear
Purge
Run
Setup
Program
Fast
Slow
Time Set
Steady
Pressure
Time
Fast
Slow
Time Set
®
A NORDSON COMPANY
VALVEMATE
7000
Function Indicators
Emergency Stop
Control Pad
set time
timer bypass
display pressure (psi, bar)
TEACH program
test cycle
purge
reset
air input
power input
(voltage selector)
air output to valve
I/O connector with alarm
output (<60 psi)
connector for
optional foot pedal
Rear Panel
Pressure/Time Toggle
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 [email protected] USA 800-556-3484 44 (0) 1582 666334 Asia +86 (21) 5854 2345
