DEMA 633AG-1 User manual

DEMA 633AG-1 & 633AG-4 BLEND CENTER
INSTALLATION INSTRUCTIONS
I-459 Pg. 1 of 6
Rev. F-42084 9/8/16
1. PARTS:
A. Blend Center assembly B. 1 pc. ¼" I.D. or 3/8" I.D. x8 ft.longsupplytubing,footvalve& ceramicweight
C. 1 pc. 9/16" I.D. x 6 ft. long vinyl outlet tubing D. 2 pcs. #8 pan head 1-1/2" long mounting screws & anchors
E. 1 pc. label card F. Metering tip kit
2. INSTALLATION:
Note: Pressure indicating tee is to be install with existing faucets according to local plumbing codes in the state of
Wisconsin and any other state that requires the use of a pressure indicating tee.
A. Mounting & Water Supply:
Remove the two cover retainer screws and the cover from the blend center assembly. Anynumber of blend centers can be
coupled together by first removing the pipe plugs in all but the lastunit, then connecting the male hose thread of one unit to
the female inlet hose adapter of the next unit. Mount the unit(s) in position on the wall and locate the position for the
mounting screws. Onlytwo screwsare necessary to mount up to four units coupled together. Mounttheunits(s)tothewall
and replace the covers and screws. The water inlet is equipped with a female garden hose fitting(with strainer washer) for
attaching a water supply hose. The unit is designed so water can be supplied to either side by interchanging the pipe plug
and the female hose fitting. Note: Apply pipe dope, hand tighten,and thenturn 10 times witha wrench. DO NOT OVER
TIGHTEN.
B. Pressure Indicating Tee Installation:
Screw female quick disconnect to faucet and attach pressure indicatingtee to female quick disconnect. Attachfemaleend
of reinforced hose to male threads of tee, then attachthe male end to the female garden hose fitting at the water inlet ofthe
Blend Center (See Figure 3). Water supply should not exceed 125 psi and water temperature must not exceed 160°F.
C. Chemical Supply:
Place the chemical containers ina convenient location not more than 6 feet belowthe blend center (greater lifts will reduce
injection capacities). Insert the ends with the foot valves of the 8 foot 1/4" I.D. or 3/8" I.D. vinyl tubing into the chemical
containers. Cut the vinyl tubing to any convenient length that will allow them to extend from the bottom of the chemical
container to the proportioner inlet barbs. (See Figure 1) Gummed labels are provided for labeling chemicals.
D. Outlet:
Cut the 9/16" I.D. outlet tubingto the desired length and attach it to the proportioner outlets. Longer lengths may beused
up to 10 feet. The 7" long, 3/16" tubing must be left on the 633-164AG model to insure priming.
E. Chemical Injection Adjustment: WARNING: USE CARE WHEN HANDLING HAZARDOUS CHEMICALS.
Chemical feed rates are controlled by meteringtips screwed into the proportioner barbs. Selecta tip foreachbarbusingthe
tables.
This product is designed only to be used as described in this instruction sheet. Adhere to all warnings and
cautions identified in this document.
WARNING: Installations must conform to all local and national plumbing codes and use
approved backflow prevention and pressure relief devices where required.
ALWAYS DISCONNECT DISPENSER FROM WATER SOURCE WHEN DISPENSER
IS NOT IN USE.
Always read SDS for all chemicals used and follow personal protective guidelines.

DEMA 633AG-1 & 633AG-4 BLEND CENTER
INSTALLATION INSTRUCTIONS
I-459 Pg. 2 of 6
Rev. F-42084 9/8/16
TABLE 1 - 164BAG (1 GPM FLOW RATE PROPORTIONER - 1/4" BARB AND 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
1.25
102-1
0.90
142-1
0.60
213-1
Orange
1.70
75-1
1.20
107-1
0.80
160-1
Turquoise
2.15
60-1
1.55
83-1
1.10
116-1
Pink
3.00
43-1
2.00
64-1
1.50
85-1
Light Blue*
3.90
33-1
2.75
47-1
1.80
71-1
Brown
4.55
28-1
3.00
43-1
2.00
64-1
Red
5.80
22-1
3.60
36-1
2.30
56-1
White
7.00
18-1
4.45
29-1
2.70
47-1
Green
7.90
16-1
5.00
26-1
3.00
43-1
Blue
9.80
13-1
5.75
22-1
3.30
39-1
Yellow
14.80
9-1
7.35
17-1
3.55
36-1
Black
20.15
6-1
8.50
15-1
3.70
35-1
Purple
27.80
5-1
9.80
13-1
3.80
34-1
Gray
31.60
4-1
10.50
12-1
3.90
33-1
No Tip
35.70
3.6-1
11.80
11-1
4.50
28-1
*Metering tip color was formerly clear. Note: All induction rates are base on a water pressure of 40 psi.
Leaner dilutions can be achieved by ordering DEMA ultra lean tip kit 100-15KU.
TABLE 2 - 164AG (1 GPM FLOW RATE PROPORTIONER - 3/8" BARB AND TUBING)
Metering Tip
Color
Injection Rates For Viscosities Shown
1 cps
75 cps
200 cps
Oz/Gal
Ratio
Oz/Gal
Ratio
Oz/Gal
Ratio
Clear
1.40
91-1
1.00
128-1
0.85
151-1
Purple
2.15
60-1
1.75
73-1
1.40
91-1
Yellow
4.00
32-1
3.25
39-1
2.80
46-1
Green
6.70
19-1
5.40
24-1
4.50
28-1
Pink
8.70
15-1
7.00
18-1
5.60
23-1
Turquoise
14.15
9-1
11.15
11-1
8.15
16-1
Black
17.25
7-1
13.50
9-1
10.00
13-1
Gray
22.60
6-1
16.75
8-1
11.60
11-1
Red
25.15
5-1
19.50
7-1
13.50
10-1
Blue
27.50
4.7-1
21.65
6-1
14.25
9-1
Brown
31.00
4-1
24.25
5-1
15.60
8-1
White
33.50
3.8-1
26.25
4.9-1
16.70
7.7-1
Orange
35.40
3.6-1
28.00
4.6-1
17.40
7.4-1
Lt. Blue*
36.50
3.5-1
29.00
4.4-1
18.20
7-1
Tan*
37.80
3.4-1
29.90
4.3-1
18.65
6.9-1
No Tip
38.30
3.3-1
30.90
4.1-1
21.30
6-1
Note: All induction rates are base on a water pressure of 40 psi. *These tips are not included in standard tip kit

DEMA 633AG-1 & 633AG-4 BLEND CENTER
INSTALLATION INSTRUCTIONS
I-459 Pg. 3 of 6
Rev. F-42084 9/8/16
E 3 - 163BAG (4 GPM FLOW RATE PROPORTIONER - 1/4" BARB AND 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
0.30
427-1
0.20
640-1
0.15
853-1
Orange
0.40
320-1
0.30
427-1
0.25
512-1
Turquoise
0.60
213-1
0.40
320-1
0.30
427-1
Pink
0.80
160-1
0.50
256-1
0.40
320-1
Light Blue*
1.00
128-1
0.70
183-1
0.45
284-1
Brown
1.20
107-1
0.80
160-1
0.50
256-1
Red
1.50
85-1
0.90
142-1
0.60
213-1
White
1.85
69-1
1.10
116-1
0.70
183-1
Green
2.00
64-1
1.25
102-1
0.80
160-1
Blue
2.50
51-1
1.50
85-1
0.82
156-1
Yellow
4.00
32-1
1.85
69-1
0.90
142-1
Black
5.50
23-1
2.00
64-1
0.94
136-1
Purple
8.80
15-1
2.40
53-1
0.96
133-1
Gray
11.65
11-1
2.50
51-1
1.00
128-1
No Tip
16.20
8-1
3.00
43-1
1.20
107-1
*Metering tip color was formerly clear. Note: All induction rates are base on a water pressure of 40 psi.
Leaner dilutions can be achieved by ordering DEMA ultra lean tip kit 100-15KU.
TABLE 4 - 163AG (4 GPM FLOW RATE PROPORTIONER - 3/8" BARB AND TUBING)
Metering
Tip Color
Injection Rates For Viscosities Shown
1 cps
75 cps
200 cps
Oz/Gal
Ratio
Oz/Gal
Ratio
Oz/Gal
Ratio
Clear
0.90
142-1
0.30
427-1
0.20
640-1
Purple
1.10
116-1
0.50
256-1
0.40
320-1
Yellow
1.80
71-1
1.00
128-1
0.70
183-1
Green
2.50
51-1
1.50
85-1
1.20
107-1
Pink
3.00
43-1
2.00
64-1
1.50
85-1
Turquoise
4.50
28-1
3.15
41-1
2.30
56-1
Black
4.80
27-1
3.75
34-1
2.80
46-1
Gray
6.70
19-1
4.80
27-1
3.35
38-1
Red
8.15
16-1
5.80
22-1
3.80
34-1
Blue
9.20
14-1
6.60
19-1
4.20
30-1
Brown
11.10
12-1
7.75
17-1
4.70
27-1
White
13.20
10-1
9.15
14-1
5.00
26-1
Orange
15.00
9-1
10.10
13-1
5.30
24-1
Lt. Blue*
16.70
8-1
11.10
12-1
5.50
23-1
Tan*
18.50
7-1
11.80
11-1
5.80
22-1
No Tip
19.40
6.6-1
13.00
10-1
6.20
21-1
Note: All induction rates are base on a water pressure of 40 psi. *These tips are not included in standard tip kit.
3. OPERATION:
The blend center is now ready for use. Depressing a push button opens the valve, allowing water to flow through the
chemical proportioner that mixes chemical at the desired rate. The buttons arespringloaded to preventaccidentaloverflow
if unattended, but may be converted to locking buttons by cutting off the tab, at the notch. (See Figure 2) Pushing the
button and turningit a 1/4 turn clockwise at the end of its travel allows the valve to lock on. This makes it unnecessaryfor
the attendant to hold the button in while filling large containers. Turning the button in a counter clockwise direction will
release it, allowing the valve to shut off.

DEMA 633AG-1 & 633AG-4 BLEND CENTER
INSTALLATION INSTRUCTIONS
I-459 Pg. 4 of 6
Rev. F-42084 9/8/16
4. SERVICING:
CAUTION: TURN OFF WATER SUPPLY BEFORE SERVICING.
A. Proportioner fails to draw chemical:
1. Pinch outlet tube to create back pressure which will cause unitto prime. The foot valvewillkeeptheinlettube
primed thereafter.
2. Insufficient water supply pressure. 20 PSI is the minimum allowable.
B. Proportioner stops drawing chemical:
1. Inspect foot valve for dried chemical or dirt. Soak in hot water to clean.
2. Proportioner metering tip clogged with dried chemical. Remove tip and try injecting in hot water. If there is
no suction, remove proportioner and soak in hot water to clear interior passages.
C. Proportioner continues to draw chemical after water valve closes:
Chemical supply is higher than bottomof discharge tube creating a natural siphon. Lower the supplyvessel orhang
up outlet tube after use.
D. Valve Malfunction:
Check that the button moves freely up & down and that a "click" can be heard when the button is pushed and
released, indicating that the magnet is activating the plunger properly. Remove cover. to inspect internal parts,
unscrew magnet housing and carefully pull off the enclosing tube so as not to drop the plunger, kick-off spring and
spacer. Check for dirt or damage impending plunger and kick-off spring movement. Inspectthe diaphragm,making
sure the two small pin holes (bleed holes) in the diaphragm convolution are clear to allow the valve to close.
CAUTION: When servicing unit, be sure that replacement parts have been installed according to drawing.
RETURNS: NO MERCHANDISE MAY BE RETURNED FOR CREDIT WITHOUT DEMA’S WRITTEN
PERMISSION. RETURN MERCHANDISE AUTHORIZATION NUMBER REQUIRED IN
ADVANCE OF RETURN.
WARRANTY: DEMA products are warranted against defective material and workmanship under normal 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 year or failure and damage 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 tothe originalbuyer ofDEMAproducts.
If products are altered or repaired without prior approval of DEMA, this warranty will be void.
Defective units or parts should be returned to the factory with transportation prepaid. If 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 merchandiseauthorizationnumber,to return units for repair
or replacement, must be granted in advance of return.

DEMA 633AG-1 & 633AG-4 BLEND CENTER
INSTALLATION INSTRUCTIONS
I-459 Pg. 5 of 6
Rev. F-42084 9/8/16
FIGURE 3
OUTLET TUBING
BLEND CENTER
CHEMICAL
INLET TUBING
WATER INLET HOSE
PRESSURE
INDICATING
TEE
DETAIL OF PRESSURE
INDICATING TEE
WATER INLET HOSE
PRESSURE INDICATING TEE INSTALLATION
UTILITY KNIFE
FIGURE 2
VINYL DISCHARGE TUBING
PUSH BUTTON
FIGURE 1
FOOT VALVE
CHEMICAL CONTAINER
CERAMIC
WEIGHT
INLET HOSE ADAPTOR
STRAINER WASHER
METERING TIP
MOUNTING HOLES
AIR GAP PROPORTIONER
(MODEL 633-164AG ONLY)
7" LG TUBING
PIPE PLUG
PUSH BUTTON ACTUATOR
SUPPLY TUBING TO CHEMICAL

DEMA 633AG-1 & 633AG-4 BLEND CENTER
INSTALLATION INSTRUCTIONS
I-459 Pg. 6 of 6
Rev. F-42084 9/8/16
NO.
PART NO.
DESCRIPTION
1
66-139
Magnet Housing (Specify Color)
2
66-140
Push Button (Specify Color)
3
63-35
Magnet
4
63-36
Spring
5
41-7-25
Enclosing Tube
6
63-87
Valve Repair Kit
7
63-37
Spacer
8
41-1-8
Kick-Off Spring
9
63-38
Plunger
10
41-15-10
Diaphragm
11
63-39
Valve Body
12
100-38
Strainer Washer
13
93-44
Pipe To Garden Hose Adapter
14
66-153
Pipe Plug & O-Ring Assy.
15
61-22-3AG
4 GPM(3/8” Barb) Proportioner
61-22-3BAG
4 GPM(1/4” Barb) Proportioner
61-32AG
1 GPM(3/8” Barb) Proportioner
61-32BAG
1 GPM(1/4” Barb) Proportioner
16
100-59
Strainer Washer
17
63-73
Nozzle (4 GPM)
18
63-74-2
Nozzle (1 GPM)
19
63-76
Screen (4 GPM)
20
63-77
Screen (1 GPM)
21
63-78
O-Ring
22
63-79
Inlet Barb (1/4” Barb)
23
63-80
Inlet Barb (3/8” Barb)
NO.
PART NO.
DESCRIPTION
24
61-9
Metering Tip
25
100-15
Metering Tip
26
100-12
Vinyl Tube (7/32” ID X 8 ft. Lg.)
27
100-12L
Vinyl Tube (3/8” ID X 8 ft. Lg.)
28
63-82
Vinyl Tube (3/16” ID X 7” Lg.)
29
63-88
Vinyl Tube (9/16” ID X 4” Lg.)
(1 GPM Only)
30
63-83
Vinyl Tube (3/16” ID X 6 Ft. Lg.)
31
61-107-2
Ceramic Weight (For 3/8” OD
Tubing)
32
61-107
Ceramic Weight (For ½” OD
Tubing)
33
100-11P
Foot Valve
34
63-45
Cover
35
63-46
Screw
ACCESSORIES
NO.
PART NO.
DESCRIPTION
36
68-6-QD2
Pressure Indicating Tee
37
61-25-2
Fresh Water Outlet Kit
38
100-15K
Metering Tip Kit (14 Sizes)
39
61-9K
Metering Tip Kit (15 Sizes)
40*
L307
Chemical labels
41*
L366
Unit front Label
*Items 40 and 41 are not shown
(1 GPM ONLY) 11
(1 GPM ONLY)
(6' LONG)
29
30
(3/8" TUBE)
27
FOR 1/4" TUBE
FOR 3/8" TUBE
32
31
(4 GPM)
(1 GPM)
16
15
*SEE TABLE BELOW
28
(1 GPM)
(4 GPM)
17
18 20
19
14
(1/4" BARB)
(3/8" BARB)
(1/4" BARB)
(1/4" TUBE)
(3/8" BARB)
23
33
26
25
24
22
63-78
21
69
10
8
7
5
3
4
13
12
34
(SPECIFY COLOR)
(SPECIFY COLOR)
35
2
1
36