DEMA® MODEL 693T FOAM STATION II
INSTALLATION INSTRUCTION
I-747
Page 2 of 8
Rev. E-40261
11/13/14
into the chemical container. Push the other tubing end over the metering knob barb.
Note: Remove ball valve knob
and Foam Station cover for chemical supply installation.
3.
CHEMICAL ADJUSTMENT:
The chemical feed rate is controlled by metering tips screwed into the barb on the side of the Foam Station. The feed rates
can be changed using different metering tips. To select the proper metering tip size for the desired dilution ratio, refer to
Table 2 (Foamer) and Table 3 (P203 Injector).
1 cps (centipoise) is equal to the viscosity of water
75 cps is approximately equal to the viscosity of 10 weight motor oil
200 cps is approximately equal to the viscosity of most dishwashing detergents
Injection rate can be doubled with no tip by using ½” ID inlet tubing. Use a short piece of 3/8 in. ID tubing on
proportioner and foot valve barbs for a bushing.
TABLE 1: Outlet Garden Hose Connection
GARDEN HOSE SIZE AND
LENGTH
MIN. PRESSURES
WATER AIR
25’ OF ¾” ID
40 PSI
40 PSI
50’ OF ¾” ID
50 PSI
40 PSI
25’ OF ½” ID
60 PSI
40 PSI
TABLE 2: Foamer Injection Rate
Metering
Tip Color
Injection Rate for Viscosities Shown
1 cps
75 cps
200 cps
500 cps
Oz/Gal Ratio Oz/Gal Ratio Oz/Gal Ratio Oz/Gal
Ratio
Clear
0.84
152-1
0.65
197-1
0.45
284-1
0.30
427-1
Purple
1.35 95-1 1.10 116-1 0.90 142-1
0.60
213-1
Yellow
2.40
53-1
2.00
64-1
1.50
85-1
1.10
116-1
Green
4.20 30-1 3.40 38-1 2.65 48-1 2.10
61-1
Pink
5.25
24-1
4.50
28-1
3.45
37-1
2.60
49-1
Turquoise
9.40 14-1 7.25 18-1 5.45 23-1 3.70
35-1
Black
11.75
11-1
8.80
15-1
6.35
20-1
4.20
30-1
Gray
14.50 9-1 10.80 12-1 7.75 17-1 4.75
27-1
Red
18.00
7-1
13.20
10-1
8.30
15-1
5.00
26-1
Blue
20.60 6-1 14.70 9-1 8.65 14.8-1
5.20
25-1
Brown
24.10
5-1
16.15
8-1
9.30
14-1
5.50
23-1
White
27.50 4.7-1 17.80 7-1
9.70 13-1 5.70 22-1
Orange
30.00
4.3-1
18.50
6.9-1
10.10
12.7-1
5.85
21.9-1
Light Blue*
32.00 4-1 18.90 6.8-1 10.20
12.5-1
6.00 21-1
Tan*
32.50
3.9-1
19.25
6.6-1
10.40
12.3-1
6.25
20.5-1
None
34.25
3.7-1
20.45
6-1
10.60
12-1
6.50
20-1
All induction rates are based on 40 psi water pressure and 40 psi air pressure.
*The tips are not included in the standard tip pack.
