Page 1
DEMA MODEL 163C, 163CB, 163CB-2 PROPORTIONER
INSTALLATION INSTRUCTIONS
1. PARTS
A. Proportioner Assembly
B. Supply tubing with foot valve & ceramic weight.
C. Outlet tubing (3' Lg.)
D. Metering tip kit
E. Vacuum Breaker (163CB-2 only)
2. INSTALLATION AND ADJUSTMENT
Screw proportioner onto garden hose outlet or faucet. For 163CB-2, screw vacuum breaker to faucet and the proportioner
to the vacuum breaker. Select a metering tip using Table 1 or 2 as a guide and screw into inlet barb. Attach the 3 foot
length of tubing to the proportioner outlet. This tubing must remain attached or proportioner will not draw. Slide ceramic
weight over tubing to keep foot valve submerged in chemical and drop foot valve and tubing into chemical container.
Attach open end of tubing with foot valve to proportioner inlet barb. (Tubing may be cut to any convenient length. Soften
end in hot water for easy attachment).
3. OPERATION
WARNING: USE CARE WHEN HANDLING HAZARDOUS CHEMICALS
Turn on water. Chemical siphoning will begin as soon as the outlet tubing fills with water.
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
Table 1: 163CB (4 GPM flow rate, 1/4” barb and tubing)
I-106 Pg. 1 of 4
Rev. B-38149 8/28/12
Page 2
DEMA MODEL 163C, 163CB, 163CB-2 PROPORTIONER
INSTALLATION INSTRUCTIONS
Injection Rates For
Viscosities Shown
Metering Tip Color
Clear 0.30 430-1 0.22 592-1 0.13 864-1
Purple 0.48 265-1 0.32 406-1 0.24 524-1
Yellow 1.28 100-1 0.82 157-1 0.6 212-1
Green 1.67 77-1 1.29 99-1 1 128-1
Pink 2.36 54-1 1.65 77-1 1.25 103-1
Turquoise 3.76 34-1 2.55 50-1 1.85 69-1
Black 4.47 29-1 3.03 42-1 2.12 60-1
Gray 5.53 23-1 3.67 35-1 2.58 50-1
1 cps 75 cps 200 cps
Oz/Gal Ratio Oz/Gal Ratio Oz/Gal Ratio
Red 7.00 18-1 4.79 27-1 2.79 46-1
Blue 8.78 15-1 5.39 24-1 3.06 42-1
Brown 10.95 12-1 6.49 20-1 3.35 38-1
White 14.19 9-1 7.08 18-1 3.46 37-1
Orange 17.58 7-1 7.91 16-1 3.71 35-1
Light Blue 21.75 6-1 8.66 15-1 3.9 33-1
Tan 27.98 5-1 9.15 14-1 4.11 31-1
No Tip 33.15 4-1 10.54 12-1 4.52 28-1
Table 2: 163C (4 GPM flow rate, 3/8” barb and tubing )
Note: 1 cps (centipoise) is equal to the viscosity of water, 75 cps is approximately equal to the viscosity of 10 weight
motor oil, and 200 cps is approximately equal to the viscosity of most dishwashing detergents.
I-106 Pg. 2 of 4
Rev. B-38149 8/28/12
Page 3
DEMA MODEL 163C, 163CB, 163CB-2 PROPORTIONER
INSTALLATION INSTRUCTIONS
4. SERVICING
CAUTION: Turn off water supply before servicing.
A. Failure to inject chemical
a. Low water pressure. At least 10 PSI is required.
b. Discharge tubing missing or not filling. Blend end or immerse in pail.
c. Detergent passage clogged. Remove metering tip and soak proportioner in hot water to clean internal
d. Foot valve clogged. Soak in hot water.
B. Injection continues after water is turned off. Discharge tubing is below drum level. Raise outlet tubing to stop
siphoning or re-arrange installation such that drum is below outlet tubing.
CAUTION: When servicing unit, be sure that replacement parts have been installed according to
RETURNS: NO MERCHANDISE MAY BE RETURNED FOR CREDIT WITHOUT DEMA’S
WARRANTY: DEMA products are warranted against defective material and workmanship under normal
Defective units or parts should be returned to the factory with transportation prepaid. If
passages.
drawing.
WRITTEN PERMISSION. RETURN MERCHANDISE AUTHORIZATION
NUMBER REQUIRED IN ADVANCE OF RETURN.
use and service for one year from the date of manufacture. This limited warranty does not
apply to any products which have a normal life shorter than one ye ar or fail ure and dam age
caused by chemicals, corrosion, improper voltage supply, physical abuse, or
misapplication. Rubber and synthetic rubber parts such as “o”- rings, diaphragms, squeeze
tubing and gaskets are considered expendable and are not covered under warranty. This
warranty is extended only to the original buyer of DEMA products. If products are altered
or repaired without prior approval of DEMA, this warranty will be void.
inspection shows them to be defective, they will be repaired or replaced without charge,
F.O.B. factory. DEMA assumes no liability for damages. Return merchandise
authorization number, to return units for repair or replacement, must be granted in advance
of return.
I-106 Pg. 3 of 4
Rev. B-38149 8/28/12
Page 4
DEMA MODEL 163C, 163CB, 163CB-2 PROPORTIONER
INSTALLATION INSTRUCTIONS
1
(163CB-2 ONLY)
2
(163CB, CB-2)
(163C)
3
4
6
(163CB, CB-2)
(163C)
5
7
(163CB, CB-2)
(163C)
8
9
NO. PART NO. DESCRIPTION
1 34-22-4 Vacuum Breaker
2 100-15 (163CB,
Metering Tip (Specify Color)
CB-2)
3 61-9 (163C) Metering Tip (Specify Color)
100-12 (163CB,
4
CB-2)
Vinyl Tube (1/4” ID x 8’ Lg.)
5 100-12L (163C) Vinyl Tube (3/8” ID x 8’ Lg.)
6 16-3 Vinyl Tube (1/2” ID x 3’ Lg.)
61-107-2
7
(163CB, CB-2)
61-107 (163C) Ceramic Weight (3/8” ID x ½”
8
100-16E Foot Valve
9
Ceramic Weight (1/4” ID x 3/8”
OD Tubing)
OD Tubing)
I-106 Pg. 4 of 4
Rev. B-38149 8/28/12
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