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Th
Model 652
1.
2.
PARTS:
INSTALLA
This pro
and cau
AP Dual Si
ITEM
A
B
C
D
E
F
G
ION: (See F
uct is desig
ions identifie
W
us
AL
DEM
MO
IN
k Dispenser
DESCRIP
Dual Sink D
¼” I.D. X 8’
Ceramic We
½” ID X 6’
#10 Screw
Label Card
Metering Ti
gure 1 for set
ed only to b
in this docu
RNING: Inst
approved b
AYS DISC
PENSER IS
DUA
EL: 652
TALLAT
ispenses tw
ION
ispenser Asse
Long Vinyl S
ight
ong Vinyl O
Anchor Kit
Kit
p diagram)
used as de
ment.
llations mus
ckflow preve
NNECT DI
NOT IN USE
SINK
AP & 6
ON INST
products in
bly
upply Tubing
tlet Tubing
et (Total 4 Sc
cribed in this
conform to
ntion and pr
PENSER F
.
ISPEN
2GAP-2
UCTIONS
o a kitchen s
& Foot Valve
ews & 4 Anc
instruction s
ll local and
ssure relief
OM WATE
ER
nk with the t
Assembly
ors)
heet. Adher
ational plum
evices wher
SOURCE
rn of a ball
Q
to all warni
bing codes a
required.
HEN
alve.
Y.
gs
d
I-78
E-42173
Rev.
A. Mou
Loc
it f
the i
until
the s
thro
sink
tube
The
The
gard
OV
WA
caus
B. Che
Plac
lifts
foot
supp
the
inlet
C. Outle
For
outl
ting and Wa
te mounting h
r use with the
cluded ancho
they are flush
crew heads a
gh the keyhol
does not inter
together appr
ater inlet is
ater supply
n hose adapte
R TIGHTE
NING: Do
the plastic t
ical Supply:
the chemical
ill reduce i
alve and cer
y tube to any
roportioner in
barb. Repeat
:
ach of the pro
t barb. Note:
ays read SD
er Supply:
les on a per
included #10
s, drill 1/8”
with face of
e sticking out
slots in the
ere with the o
ximately 4”
quipped with
an be attache
r. NOTE: A
).
ot use Teflo
crack. Use
containers in
ection capa
mic weigh t o
convenient le
et barb. Inst
his procedure
ortioner outl
O NOT forc
for all che
anent surface
crew and anc
iameter holes.
all. Assemb
of the wall a
over and tigh
tlet tubes, pu
elow where t
a female gard
to the left si
ply pipe dop
® tape to se
non-weldin
a convenient l
ities.) Slip a
the 8 ft lon
gth that will
ll open end s
for the other c
ts: Cut the 1/
outlet tubin
icals used a
above sink.
or set. (If m
) Insert the a
e all of the #1
proximately
ening the scr
ting a strain
e tubes attach
n hose adapt
e of the unit
, hand tighte
l internal pl
liquid seala
ocation not m
ceramic weig
chemical sup
llow the tub
de of the che
hemical conta
” I.D. outlet t
onto the lar
10/04/16
d follow per
rill all of the
unting the Di
chors into dr
0 screws with
”. Mount t
ws. The unit
n the proporti
to the proport
r to permit co
by interchang
, and then t
astic threads
t instead.
re than 6 ft.
t over a che
ply tube into
to extend fro
ical supply t
ner.
bing to the d
er barbs on
onal protecti
oles into th e
penser to wo
lled holes an
a Phillips scr
e Dispenser
needs to be
oners. If this
oners.
nnection to th
ing the plug i
rn 1-1/2 tim
as the extra
elow the disp
ical supply t
he chemical
the bottom
be by pushin
sired length a
he proportio
ve guideline
rywall using
d and you do
hammer the
wdriver into
y inserting th
ounted high e
is not possibl
right hand s
the left-han
s with a wre
thickness of
ensing unit. (
be. Insert th
ontainer. Cu
of the chemic
the tube ov
d attach to t
er.
P
.
a ¼” diamete
ot plan to use
into the wall
he anchors so
screw heads
ough that the
, tie the outle
de of the unit.
side with the
ch (DO NOT
he tape ma
Note: greater
end with the
the chemical
l container to
r proportione
e proportione
. 1 of 5
Page 2
DEMA DUAL SINK DISPENSER
MODEL: 652GAP & 652GAP-2M
INSTALLATION INSTRUCTIONS
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
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
Injection Rates For Viscosities Shown
for tip
Metering Tip Color
Oz/Gal Ratio Oz/Gal Ratio Oz/Gal Ratio
Tan
Orange
Turquoise
Pink
Clear
Brown
Red
White
Green
Blue
Yellow
Black
Purple
Gray
No Tip
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
2. Insufficient water supply pressure. 20 psi is the minimum allowable pressure.
0.33 387-1 0.26 500-1 0.12 1090-1
0.42 307-1 0.32 430-1 0.17 735-1
0.51 251-1 0.34 382-1 0.19 676-1
0.78 165-1 0.56 230-1 0.3 422-1
0.87 147-1 0.67 192-1 0.33 391-1
0.99 129-1 0.74 174-1 0.37 345-1
1.37 93-1 0.91 141-1 0.44 289-1
1.52 84-1 1.04 123-1 0.48 264-1
1.72 74-1 1.22 105-1 0.52 244-1
2.13 60-1 1.27 101-1 0.54 239-1
3.05 42-1 1.71 75-1 0.56 229-1
4.50 28-1 1.96 65-1 0.57 224-1
7.75 17-1 2.4 53-1 0.59 217-1
9.86 13-1 2.54 50-1 0.63 204-1
19.63 7-1 3.16 40-1 0.67 190-1
cause unit to prime. The foot valve will keep the inlet tube primed thereafter.
1 cps 75 cps 200 cps
I-782 Pg. 2 of 5
Rev. E-42173 10/04/16
Page 3
DEMA DUAL SINK DISPENSER
MODEL: 652GAP & 652GAP-2M
INSTALLATION INSTRUCTIONS
B. Proportioner stops drawing chemical:
1. Inspect foot valve for dried chemical or dirt. Soak in hot water to clean.
2. Proportioner inlet clogged with dried chemical. Remove metering tip and try injecting in hot water. If
there is no suction, remove proportioner and soak in hot water to clear interior passages.
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 to the original buyer of DEMA products. 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 merchandise authorization number, to return units for repair or
replacement, must be granted in advance of return.
Chemical Supply Tube
Ba ll V a lve (2 )
Outlet Tube
Sw iv e l A d a p ter Or
M ale T hre ad e d F itting
Chemical Supply Tube
Outlet Tube
FIGURE 1
I-782 Pg. 3 of 5
Rev. E-42173 10/04/16
Chemical
Container
Page 4
DEMA DUAL SINK DISPENSER
MODEL: 652GAP & 652GAP-2M
INSTALLATION INSTRUCTIONS
NO. PART NO. DESCRIPTION
1 100-38 Strainer Washer
2 65-10 Hose Coupling
3 65-17-2 Hose Adapter Stem
4 65-11 Swivel Adapter Kit
5 65-30-1 ¼” NPT Pipe Tee
6 25-137-6U ¼” NPT Close Nipple
7 65-6 Plug – ¼” NPT
8 65-7 ¼” NPT Ball Valve
9 61-31-3U Adapter MGHT X ¼” FPT
10 16-30 Action Gap Assembly
NO. PART NO. DESCRIPTION
*Foot Valve also available with silicone (100-16S-1) or Viton (100-16V-1) rubber seals. Please specify material when ordering.
** Items not shown.
I-782 Pg. 4 of 5
Rev. E-42173 10/04/16
11 150-6 Rubber Washer
12 61-22-3 4 GPM Proportioner – ¼” Inlet Barb
13 61-21 ½” ID X 6’ Lg. Vinyl Tubing
14 63-78 O-Ring
15 63-79 Inlet Barb (1/4” Barb)
16 100-15K Metering Tip Kit-14 Sizes (1/4” Barb)
17 100-12 ¼” ID X 8’ Lg. Vinyl Tubing
18 61-107-2 Ceramic Weight
19* 100-16E Foot Valve
20** L806 Chemical labels
21** L842 DEMA Unit label
Page 5
DEMA DUAL SINK DISPENSER
MODEL: 652GAP & 652GAP-2M
INSTALLATION INSTRUCTIONS
MODEL: 652GAP-2M
2
18
1
5
6
7
9
3
4
8
3
5
7
12
2
18
1
6
13
14
15
10
11
16
17
NO. PART NO. DESCRIPTION
1 25-51-12 ¼” NPT X 3/8” O.D. Tube
Compression Fitting
2 25-137-12 ¼” NPT X 1-1/2” Lg. Close Nipple
3 65-30-1 ¼” NPT Pipe Tee
4 65-20-1 ¼” NPT Spacer Pipe Plug (solid)
5 65-7 ¼” NPT Ball Valve
6 25-137-6U ¼” NPT X 7/8” Lg. Close Nipple
7 65-31-3U ¼” NPT X 3/4” MGHT Bushing
8 16-30 Action GAP Assembly
9 150-6 Rubber Washer
NO. PART NO. DESCRIPTION
*Foot Valve also available with silicone (100-16S) or Viton (100-16V) rubber seals. Please specify material when ordering.
** Items not shown.
10 61-22-3 4 GPM Proportioner – ¼’ Inlet Barb
11 61-21 ½” ID X 6’ Lg. Vinyl Tubing
12 63-78 O-Ring
13 63-79 Inlet Barb (1/4” Barb)
14 100-15K Metering Tip Kit – 14 Sizes (1/4’ Barb)
15 100-12 ¼” ID X 8’ Lg. Vinyl Tubing
16 61-107-2 Ceramic Weight (1/4” Tube)
17* 100-16E Foot Valve
18 61-121 Elbow, ¼” St. Plated
20** L806 Chemical Labels
21** L842 DEMA Unit Label
I-782 Pg. 5 of 5
Rev. E-42173 10/04/16
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