DEMA DUAL SINK DISPENSER
MODEL: 652GAP & 652GAP-2M
INSTALLATION INSTRUCTIONS
I-782
Pg. 2 of 5
Rev. E-42173 10/04/16
Caution: To prevent continuous siphoning, the outlet of the discharge tubing should not be below the level of
chemical in the container.
Outlet tubes may be tie-wrapped to each other or anchored to the wall or faucet to prevent damage to proportioners.
(Tie-wraps not included.)
D.
Injection Adjustment:
WARNING: USE CARE WHEN HANDLING HAZARDOUS CHEMICALS.
Chemical feed rates are controlled by metering tips screwed into the proportioner barb. Use Table 1 as a guide
for tip
selection.
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
TABLE 1
4 GPM FLOW RATE PROPORTIONER, 1/4” I.D. Tubing
Metering Tip Color
Injection Rates For Viscosities Shown
1 cps
75 cps
200 cps
Oz/Gal Ratio Oz/Gal Ratio Oz/Gal Ratio
Tan
0.33 387-1 0.26 500-1 0.12 1090-1
Orange
0.42 307-1 0.32 430-1 0.17 735-1
Turquoise
0.51 251-1 0.34 382-1 0.19 676-1
Pink
0.78 165-1 0.56 230-1 0.3 422-1
Clear
0.87 147-1 0.67 192-1 0.33 391-1
Brown
0.99 129-1 0.74 174-1 0.37 345-1
Red
1.37 93-1 0.91 141-1 0.44 289-1
White
1.52 84-1 1.04 123-1 0.48 264-1
Green
1.72 74-1 1.22 105-1 0.52 244-1
Blue
2.13 60-1 1.27 101-1 0.54 239-1
Yellow
3.05 42-1 1.71 75-1 0.56 229-1
Black
4.50 28-1 1.96 65-1 0.57 224-1
Purple
7.75 17-1 2.4 53-1 0.59 217-1
Gray
9.86 13-1 2.54 50-1 0.63 204-1
No Tip
19.63 7-1 3.16 40-1 0.67 190-1
3.
OPERATION:
The model 652GAP is activated by turning one of the two on-off ball valves fully counter-clockwise.
(In order for the
unit to operate properly, only one ball valve should be open.)
When the desired amount of chemical water solution has
been obtained turn the ball valve fully clockwise
.
Note: Do not use ball valves to throttle chemical water flow rate; this will result in inconsistent induction rates.
4.
SERVICING:
CAUTION: TURN OFF WATER SUPPLY BEFORE SERVICING.
A.
Proportioner fails to draw chemical:
1.
Proportioner outlet tubing cut too short for priming. Pinch outlet tube to create back pressure which will
cause unit to prime. The foot valve will keep the inlet tube primed thereafter.
2.
Insufficient water supply pressure. 20 psi is the minimum allowable pressure.
