GONANO GV-1625 User manual
1
V1.0April. 2017
© Gonano Dosiertechnik GmbH
Operating Instructions
Diaphragm Valve GV-1625
Operating Instructions Diaphragm Valve GV - 1625
3
Dear Customer
Thank you for purchasing the GV-1625.
These operating instructions are intended for simple and safe operation
of the valve.
Please read these instructions carefully before commissioning and also
observe the safety instructions given.
Your Gonano-Dosiertechnik GmbH
1.
2. Intended use .................................................................................... 4
3. Specications ................................................................................... 4
4. Valve assembly ................................................................................ 5
5. Operating principle ........................................................................... 6
6. Wiring diagram ................................................................................. 7
7. Commissioning................................................................................. 7
8. Maintenance..................................................................................... 9
8.1 Cleaning.....................................................................................9
8.2 Disassemble valve ..................................................................... 9
8.2 Assemble valve.......................................................................... 9
9. Detailed drawings and dimensions ................................................ 10
10. Exploded view ................................................................................ 11
11. Parts and spare parts list ............................................................... 11
1. Table of contents
Operating Instructions Diaphragm Valve GV - 1625
4
3. Specications
The GV-1625 diaphragm valve is ideal for dispensing liquids in the
lower and medium viscosity range, with the diaphragm separating the
wetted parts from the control unit. These are optimal operating
conditions for dispensing cyanoacrylates, UV adhesives, inks,
electrolytes, glues, alcohols and other low-viscosity substances.
The shot size can be nely adjusted via the adjusting screw at the top
of the valve.
GV-1625
Operating pressure 4.0 - 6.0 bar
Max. Material pressure 5 bar
Switching frequency 500 cycles / min
Flow rate 300 ml / min (water at 2 bar)
Min. dosing quantity 0.001 ml (depending on material)
Principle Diaphragm valve
Weight approx. 87 g
Control unit material Body: AL
Piston : SUS303
Piston seal : NBR
Material Parts in
contact
with medium
Valve head : UHMW-PE
(option : PTFE, PEEK, Acetal)
Diaphragm : UHMW-PE
Connections
Control air inlet: M5
Material inlet: 1/8"
Material outlet: Luer Lock
2. Intended use
Operating Instructions Diaphragm Valve GV - 1625
5
7
8
1
9
2
10
3
11
4
5
501
6
4. Valve assembly
1 Control unit
7
Flow rate setting
2 Mounting option (rear)
8
Scaling for adjustment
3 Diaphragm
9
Control air inlet (M5)
4 Dosing head 10 Inspection hole for diaphragm
5 Material outlet (Luer lock) 11 Material inlet G 1/8
"
6 Dispensing needle
Operating Instructions Diaphragm Valve GV - 1625
6
Hub short lang
Dosing quantity small large
Direction of
rotation
1 0 5 5 1
1 0 5
5. Operating principle
No dosing Dosing
In the normal state, without
control air, the diaphragm is
closed and no material is
dispensed.
When the control air is applied, the
diaphragm opens and material is
dispensed.
As soon as the control air is applied to
the valve, the diaphragm opens and
opens the material path so that
dispensing takes place.
The dispensing quantity can be adjusted
via the rear adjusting screw.
Please note:
The maximum stroke length is 0.6 mm
(1 rotation).
No further change occurs if the djusting
screw is turned more than one turn.
Since there is no control air,
the control parts of the valve
are at rest and the diaphragm
is closed. Therefore, the
material path is closed and no
material is dispensed.
short long
Material
input
Material
output
0
0
Operating Instructions Diaphragm Valve GV - 1625
7
Compressed air
supply
Valve control
unit OR OR
Dispensing
medium in
cartridge
Control air
Dispensing
medium
in material
container
Dosing valve
Dispensing
medium in
bottle
Material feed
Control air
inlet
Material
input
Exemplary presentation
6. Wiring diagram
7. Commissioning
1. Attach the valve to the mounting thread provided (M5*P0.8*D98) or
use a valve clamping ring.
2. Connect the control pressure air hose to the controller and to the
control air inlet of the metering valve. The control pressure for the
valve must be min. 4.0 bar.
3. Connect the tting for the material supply to the material inlet 1/8"
NPT thread.
Operating Instructions Diaphragm Valve GV - 1625
8
Attention:
Do not turn the tting too deep into the valve.
4. Screw a suitable dispensing needle into the Luer Lock connection on the
material outlet.
5. Set the material pressure as follows (but max. 5.0 bar). Set the material
pressure to max. 0.5 bar if you want to dispense very thin material (such as
water or solvent). Set the material pressure for highly viscous material to
approx. 2.0 bar and adjust it according to the required dosage.
6. On delivery, the adjusting screw is set to position 3 (middle of full stroke).
Increase or decrease the setting as needed. The max. stroke is 0.6mm. This
corresponds to one complete turn of the adjusting screw.
Attention:
If you turn the adjusting screw counterclockwise 2 turns or more, the
return spring loses its eect and the valve opens continuously. This
means that material is constantly metered, even if there is no control
pressure.
7. Adjust the settings of the valve, the material pressure and the controller so
that the material comes out of the valve slowly.
(This prevents bubbles from forming in the dosing material during dosing).
8. Select the operating mode "Timer" or "Manual" on the controller depending
on the desired dosage.
9. You can inuence the dosing result via the following 4 possibilities:
Dispensing needle
diameter
Thin dispensing needle reduces the dosing
quantity. Thick dispensing needle increases
the dispensing quantity
Adjusting screw for
stroke adjustment
High stroke setting increases the dosing
quantity. Low stroke setting reduces the
dosing quantity
Dispensing
time
Long dispensing time increases the dosing
quantity Short dosing time reduces the
dispensing quantity
Increase or decrease the
material pressure
Pressure increase leads to an increase in
the dispensing quantity
Pressure reduction leads to a reduction in
the dosing quantity
Operating Instructions Diaphragm Valve GV - 1625
9
8. Maintenance
8.1 Cleaning
Clean the valve regularly, especially if you are dispensing material that tends to
harden or can lead to possible damage to parts in contact with the material.
First empty the material container so that the material path in the valve is largely
empty and air is still escaping.
Clean the accessible parts in contact with the material with a suitable cleaning
agent or rinse the valve with a suitable cleaning agent.
Then rinse the valve a few times alternately with air and a liquid cleaning agent.
8.2 Disassemble valve
If it is necessary to disassemble the valve for cleaning, use the "Exploded View &
Parts List" according to chapter 10.
When cleaning the valve, be very careful
especially when cleaning the valve piston and
the valve seat. If the piston or the valve seat is
damaged, the valve will leak and the parts will
have to be replaced. Diaphragm
Membrane Seat
8.3 Assemble valve
Install diaphragm
Turn the adjusting screw counterclockwise out of the valve
Remove the valve head
Remove the old membrane by turning it anticlockwise
Carefully screw in the new membrane
Attention:
If the diaphragm is not screwed in properly, the valve is leaking.
501
10. Detailed drawings & dimensions
Operating Instructions Diaphragm Valve GV - 1625
10
After you have brought the new diaphragm to the correct distance (0.4 mm
- see picture) to tighten the air cylinder, turn the diaphragm with a
screwdriver to the necessary position according to the following picture.
Screwdriver
0,4
To ret the valve head, x it carefully with the Allen screw.
Screw the set screw back in when the valve is assembled. Then operate
the valve again after it is completely assembled.
Attention:
The scale may now no longer show "0" exactly. In this case,
calculate the setting relative to the closed position. This does not
aect the operation.
Control unit
Dispensing
head
0
1
5
Operating Instructions Diaphragm Valve GV - 1625
11
1
2
3
4
5
6
7
8
9
10
11
12
13
10. Exploded view
11. Partsand spareparts list
GV-1625 Description Pcs.
1
V-0003 Cylinder cap 1
2
V-0011 O-ring 1
3
V-0010 Spring 1
4
V-0007 Washer 1
5
V-0004 Seegerring 1
6
V-0006 Piston 1
7
V-0009 O-ring 1
8
V-0008 O-ring 1
9
V-0002 Cylinder 1
10
V-0005 Membrane 1
11
V-0001 Valve chamber Polystone®M 1
11
- Valve chamber stainless steel 1
12
Luer-Lock-91 Luer lock adapter 1
13
V-0012 Screws (M3x20) 2
o. A.
V-0036 Compressed air tting 90° M5 1
No. in g.
GONANO Dosiertechnik
GmbH
Franzensdorfer Straße 40
A-2285 Breitstetten
Phone: +43 2216 8478
Fax: +43 2216 8477
E-mail: o[email protected]
Internet: www.dosieren.net
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