Page 1
DEMA MODEL 164C, 164 CB PROPORTIONER
DEMA Kit #61-32T
INSTALLATION INSTRUCTIONS
1. PARTS
A. Proportioner Assembly
B. Metering tip kit
PARTS INCLUDED WITH 164 ONLY:
C. Supply tubing with foot valve & ceramic weight.
D. Outlet tubing (3' Lg.)
2. INSTALLATION AND ADJUSTMENT
Screw proportioner onto garden hose outlet or faucet. 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 chemica l and drop foot valve and tubing into
chemical container. Attach open end of tubing with foot valve to proportioner inlet barb. (Tubing m ay be cu t t o a ny conv eni ent
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.
Injection Rates For Viscosities Shown
Metering Tip Color
Oz/Gal Ratio Oz/Gal Ratio Oz/Gal Ratio
Tan 1.03 125-1 0.76 168-1 0.38 333-1
Orange 1.24 103-1 0.98 130-1 0.53 241-1
Turquoise 1.43 89-1 1.07 119-1 0.61 211-1
Pink 2.47 52-1 1.58 81-1 0.92 139-1
Clear 3.05 42-1 2.1 61-1 1.06 121-1
Brown 3.48 37-1 2.31 55-1 1.15 111-1
Red 4.38 29-1 2.83 45-1 1.23 104-1
White 5.33 24-1 3.1 42-1 1.37 93-1
Green 6.38 20-1 3.63 35-1 1.4 91-1
Blue 6.77 19-1 3.78 34-1 1.45 88-1
Yellow 9.90 13-1 5.1 25-1 1.48 86-1
Black 15.00 9-1 6.54 20-1 1.53 84-1
Purple 24.94 5-1 7.28 18-1 1.57 82-1
Gray 35.94 4-1 8.5 15-1 1.64 78-1
No Tip 73.21 2-1 9.35 14-1 1.87 69-1
1 cps 75 cps 200 cps
Table 1: 164CB (1 GPM flow rate, ¼” barb and tubing)
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 passages.
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.
I-199 Pg. 1 of 3
Rev. A0600
Page 2
DEMA MODEL 164C, 164 CB PROPORTIONER
DEMA Kit #61-32T
INSTALLATION INSTRUCTIONS
CAUTION: When servicing unit, be sure that replacement parts have been installed according to drawing.
Injection Rates For Viscosities Shown
Metering Tip Color
Oz/Gal Ratio Oz/Gal Ratio Oz/Gal Ratio
Clear 2.28 56-1 0.63 204-1 0.44 292-1
Purple 2.98 43-1 1.22 105-1 0.76 168-1
Yellow 5.18 25-1 2.51 51-1 2.01 64-1
Green 6.37 20-1 4.22 30-1 3.14 41-1
Pink 8.76 15-1 5.59 23-1 4.17 31-1
Turquoise 12.01 11-1 8.44 15-1 6.12 21-1
Black 15.16 8-1 9.93 13-1 7.09 18-1
Gray 18.97 7-1 12.55 10-1 8.73 15-1
Red 25.38 6-1 15.84 8-1 10.07 13-1
Blue 28.24 5-1 17.92 7-1 11.7 11-1
Brown 36.99 4-1 21.31 6-1 12.04 10.5-1
White 45.52 3-1 25.26 5-1 12.67 10-1
Orange 53.31 2.5-1 28.44 4.5-1 13.14 9.75-1
Light Blue 60.27 2.25-1 30.5 4-1 13.51 9.5-1
Tan 72.94 2-1 33.4 3.75-1 14 9-1
No Tip 77.90 1.75-1 35.85 3.5-1 14.5 8.75-1
1 cps 75 cps 200 cps
Table 2: 164C (1 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.
RETURNS: NO MERCHANDISE MAY BE RETURNED FOR CREDI T WITHOUT DEMA’S
WRITTEN PERMISSION. RETURN MERCHANDISE AUTHORIZATION
NUMBER REQUIRED IN ADVANCE OF RETURN.
WARRANTY: DEMA products are warranted against defective material and workmanship unde r n orm al use
and service for one year from the date of manufacture. This limited warran ty do es n ot appl y to
any products which have a normal life shorter than one year or failure and damage caused by
chemicals, corrosion, improper voltage supply, physical abuse, or mi sapplic ati on. Ru bber an d
synthetic rubber parts such as “o”- rings, diaphragms, squeeze tubing and gaskets are
considered expendable and are not covered under warranty. This warranty is extend ed on ly to
the original b uyer of DEMA products. If p roducts are altered or repa ired without prior
approval of DEMA, this warranty will be void.
Defective units or part s should be returned t o the factory with transp ortation p repaid. If
inspection shows them to be defective, they w ill be repaired or repl ace d wi tho ut c har ge , F. O.B.
factory. DEMA assumes no liability for damages. Return merchandise au th ori zatio n num be r,
to return units for repair or replacement, must be granted in advance of return.
I-199 Pg. 2 of
3
Rev. A0600
Page 3
DEMA 164C,CB PROPORTIONER
150-6
61-36
100-15 164CB
61-9 164C
100-12L 164C
100-12 164CB
61-3
PART NO.
61-3
61-9
61-36
61-107-1
61-107-2
100-12
100-12L
100-11P
100-15
150-6
61-107-2 164CB
61-107-1 164C
100-11P
DESCRIPTION
VINYL TUBE (1/2" ID X 3' LG.)
METERING TIP (164)
FLOW DISC
CERAMIC WEIGHT (163C)
CERAMIC WEIGHT (163CB, CB-2)
VINYL TUBE (1/4" ID X 8' LG) 164CB
VINYL TUBE 3/8" X 8' LG) 164C
FOOT VALVE
METERING TIP
RUBBER WASHER
I-199 Pg. 3 of
3
Rev. A0600
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