PROTWIN FOAM KIT
PACKAGE CONTENTS:
1.
2.
3.
Foam kit for Protwin complete of hose and gun;
Lance for gun;
Installation kit:
•
Green foaming venturi (1pcs)
•
Yellow washing venturi (1pcs)
•
Air tube nut O-ring (1pcs)
•
Washer seal (1pcs)
•
Wall anchors (3 pcs)
•
Screws (3 pcs)
•
Washers (3 pcs)
(Foam kit is an add-on suitable for Protwin which include the above components.
Protwin is not included in the packaging)
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Rev. 1.0
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TECHNICAL CHARACTERISTICS:
SUITABLE TO BE CONNECTED TO PROTWIN ONLY
Inlet connection type
Male ¾” GHT
Compressed Air inlet
Quick connection
Green venturi
Foaming Flowrate
0.8GPM
(40PSI static pressure)
(8GPM free discharge tap flowrate)
1.5GPM
(40PSI static pressure)
Yellow Venturi
Washing flowrate
(8GPM free discharge tap flowrate)
2.7GPM
(40PSI static pressure)
Rinsing flowrate
(8GPM free discharge tap flowrate)
Maximum dimensions H = 18”
L = 13”
D = 6.3”
Min 22 PSI (water & air)
Max 85 PSI (water & air)
Working pressure
Optimum: 30 – 60 PSI
Temperature
Max 140°F (60°C)
PLEASE READ THE FOLLOWING WARNINGS BEFORE INSTALLING OR SERVICING THE
CLEANING STATION
The foam kit covert the standard Protwin in a clinging foam system, to do that compressed air is necessary,
make sure a compressed air supplying is present on site and a connection to it is near the installation;
Make sure that the water and air supply pressure is between 22 -85 PSI, in case of excessive water
pressure use a pressure regulator to avoid breackage, for air pressure the foam kit is alrerady equipped
with regulator;
Make sure that the water supply temperature does not exceed 140° (60°C)
The ProTwin foam kit’s fittings have been tested with commonly used liquid detergents mixed with water.
Check that the detergent used is compatible with polypropylene.
Mount the ProTwin foam kit considering easy access for cleaning and routine maintenance.
WARNING: Disconnect water and air supply before servicing the ProTwin.
WARNING: Follow common safety procedures. Use adequate protection for the eyes, face, hands,
and clothing.
WARNING: Is stractely recommended to install a backflow preventer at the inlet in order to avoid
possibility of the potable water pipe pollusion.
We constantly work to improve our products and reserve the right to make changes at any time
without prior notice.
Failure to follow these safety precautions may cause personal injury or damage to the equipment.
Only use recommended accessories.
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INSTALLATION
Positioning and drilling plans:
Remove the ProTwin foam kit from the box and remove the cover
by pressing the release tabs while extracting it.
It is now possible to access to the mounting holes
(located on the rear panel).
Screw the foam kit system under the ProTwin,
mark the holes on the wall and remove it.
After holes on the wall are done use to the anchors, screws and washers to fix
the foam kit under the ProTwin as per the side sketch.
FLOOR
Figure 2 – Drilling plans and positioning
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How to install:
Figure 3 – Installation
1. Conncet the compressed air inlet with the relative quick connector;
2. Unscrew the venturi case nuts and change the venturi, insert the yellow one for wash phase (right side),
and the green one for foaming phase (left side), each venturi has a positioning, rotate it back and forth
while inserting, untill it reach the lock postion, slide then up untill it a positive stop;
3. Screw the nuts back, check thet the o-ring is present before reassembling;
4. Screw the lance in to the gun.
Air setup steps
A. As soon as the connection to the air compressed is done ,and the water is
opened, swich on the air ball valve;
B. The left manomiter shows the water pressure, the right manomiter the air
pressure, pull the knob of the air regulator untill it does “click” to start to adjust
the air pressure;
cli
C. To have a great clinging foam adjust now with the opened knob the air pressure
in order to reach the same value of the water, fix then the knob in the lock
position by pulling it back.
WARNING: For the best foam quality result the value of the air pressure must be the same or
slightly different from the water pressure.
WARNING: This system is a low pressure foaming system, non-foaming chemicals or chemical
made for high pressure use are not suitable.
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DILUTION RATIO CHART
The dilution ratio can be achieved by using one of the 19 supplied metering tips;
Metering tips have small openings of decreasing diameter and are distinguished by different colors.
(Water supply pressure and flow rates will vary so adjustments in the field may be necessary)
The dilution ratios refer to a static
pressure of 50PSI with products having a
viscosity of 1 cps
Tip color:
STANDARD
MEASUREMENT
TIP
ULTRAFINE TIP
Diameter
mm:
Green Venturi
0.8GPM
Oz/Gal
gr/lt
%
Yellow Venturi
1.5GPM
Ratio
No tips
\
23.55
184
18.4
5.4
:1
Oz/Gal
gr/lt
%
Ratio
40.72
318.1
31.8
3.1
:1
Grey
3.25
23.01
180
18.0
5.5
:1
39.94
312.0
31.2
3.2
:1
Black
2.54
22.90
179
17.9
5.6
:1
39.14
305.8
30.6
3.3
:1
Beige
1.78
22.43
175
17.5
5.7
:1
31.81
248.5
24.9
4.0
:1
Red
1.32
20,03
157
15.7
6.4
:1
17.43
136.2
13.6
7.3
:1
White
1.09
16.67
130
13.0
7.7
:1
11.60
90.6
9.1
11
:1
Blue
1.01
14.17
111
11.1
9,0
:1
9.79
76.5
7.7
13
:1
Tan
0.88
11.14
87
8.7
11
:1
7.45
58.2
5.8
17
:1
Green
0.71
7.10
56
5.6
18
:1
4.84
37.8
3.8
26
:1
Orange
0.63
6.26
49
4.9
20
:1
3.74
29.2
2.9
34
:1
Brown
0.58
4.88
38
3.8
26
:1
3.21
25.1
2,5
40
:1
Yellow
0.51
3.84
30
3.0
33
:1
2.46
19.2
1.9
52
:1
Acqua
0.46
2.96
23
2.3
43
:1
1.88
14.7
1.5
68
:1
Purple
0.36
2.00
16
1.6
64
:1
1.22
9.5
1.0
105
:1
0.87
7
0.7
147
:1
0.64
5.0
0.5
200
:1
Pink
0.25
Transparent
\
No drill
No drill
Lime
0.228
0.59
4.6
0.46
217
:1
0.51
4.0
0.40
250
:1
Burgundy
0.208
0.54
4.2
0.42
238
:1
0.38
3.0
0.30
333
:1
Pumpkin
0.168
0.52
4.1
0.41
244
:1
0.36
2.8
0.28
357
:1
Copper
0.155
0.38
3.0
0.30
333
:1
0.18
1.4
0.14
704
:1
Table 1 – The dilution values given in this table are measured at a flow rate of 8 gpm free discharge tap
condition and static pressure of 50psi with a delivery hose of 50 ft.
The values in the table should be considered only as a reference, as they are dependent on many variables such
as water flow rate, pressure, chemical viscosity, temperature of the water etc.
To obtain a proper dilution it is recommended to perform the calibration as follows:
1. Fill a graduated container with the chemical product;
2. Using the Table 1, select and insert the metering tip closest to the desired dilution ratio for the product;
3. Insert the suction hose into the graduated container;
4. Shut OFF the compressed air ball valve;
5. Select the product to be calibrated by turning the selector to the left or to the right;
6. Activate the spray gun and discharge into a container until the suction and delivery hoses are completely
full and free of air (check for air bubbles at the input and for a steady output stream);
7. Mark the level in the graduated container;
8. Turn on the spray gun to the maximum and discharge into a 1 liter or 1 gallon container (or other volumes
considering the proportion);
9. Turn off the spray gun when the container is completely filled;
10. Read the amount of product in the graduated container;
11. The difference of level between the point 8 and 5 indicates the amount of mixed product per gallon;
12. Repeat the calibration procedure for the other product and reopen the compressed air ball valve.
A transparent metering tip is also provided without a pre-drilled opening, this tip can be manually drilled to obtain a
customized degree of dilution.
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Operation
When the installation is completed, follow these steps to work with
Protwin foam system properly:
1. Turn on the water and air supply;
2. Select the desired cleaning phase
- Selector facing up “OFF”
- Selector facing right “PRODUCT N° 1”
- Selector facing down “RINSE”
- Selector facing left “PRODUCT N° 2”
3. Activate the spray gun
4. Shut off the water supply when not in use
MAINTENANCE
ITEM
Water supply filter
Venturi
Non-return valves
Foot filters
0000137076
CAUSE
MAINTENANCE
Limestone deposits on the
screen
Debris or solids on the screen
Limestone deposits
Congealed product
Worn
Congealed product
Worn
Congealed product
Rev. 1.0
Replace
Clean with water or replace
Clean or replace
(Warning: do not use tools to remove the lime deposits
because you can affect the functioning of the venturi;
only use anti lime products)
Clean with water
Replace
Clean if possible or Replace
Replace
Clean if possible orReplace
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TROUBLESHOOTING GUIDE
PROBLEM
CAUSE
REMEDY
Open the water supply outside tap
No water supply
No flow
Clogged hydraulic parts
The foot filter is clogged
The calibration nozzle is clogged
Insufficient water pressure
Product is not
mixed or not dosed
correctly
Concentration too
high
The chemical
product container
fills with water.
Intermittent or no
foam
No good quality
foam
0000137076
The chemical product container
is empty
The suction hose is not properly
connected to the elbow fitting
The suction hose is crimped
somewhere
Select product or rinse
Turn on the spray gun
Check the water supply filter (input station)
Check the venturi
Clean or replace the filter
Clean or replace the nozzle
A minimum pressure of 22PSI is required for correct
operation; if the pressure is not correct, contact a
plumber
Refill or change the chemical product container
Check that the suction hose is properly connected to
the fitting, use a clamp for a better grip
Check that the suction hose is properly positioned
Clean with water or compressed air (Warning: do not
use tools to remove the lime deposits because you can
Debris or Solids in the venturi
affect the functioning of the venturi; only use anti lime
products)
The nozzle is not fully inserted or Check that the nozzle is securely plugged into the non
Wrong metering tip
return valve or select a smaller metering tip
The non return valve is clogged
or worn
Clean or replace the non return valve
No scution: Venturi, check valve,
Check and clean or replace the clogged part
tip or suction filter are clogged
Change product or dilute it with water and adapt the
Product is too thick
ratio
A minimum pressure of 22PSI is required for correct
Water pressure is too low to
operation; if the pressure is not correct, contact a
activate venturi
plumber
Lance nozzle is clogged
Clean or replace the nozzle
Product is not a foaming product
Change the product
or is made for high pressure use
Wrong dilution ratio
Increase the suctiong use a bigger tip
Water pressure is too high
Increase the Air pressure
Air pressure is too high
Decrease the Air pressure
If a compressore is used may the flow-rate of the air is
Air pressure flow is too low
low, use a bigger copressor.
Rev. 1.0
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