Dover Hydro systems HydroChem 919 Manual - Halaman 2
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Halaman Cetak
APPROXIMATE DILUTIONS
AT 40 PSI FOR WATER-THIN PRODUCTS (1.0 CP)
Orifice
Std. Drill
Ratio
Tip Color
Size
Number)
No Tip
.187
(3/16)
10:1
Gray
.128
(30)
10:1
Black
.098
(40)
10:1
Beige
.070
(50)
12:1
Red
.052
(55)
16:1
White
.043
(57)
24:1
Blue
.040
(60)
28:1
Tan
.035
(65)
32:1
Green
.028
(70)
48:1
Orange
.025
(72)
64:1
Brown
.023
(74)
80:1
Yellow
.020
(76)
96:1
Aqua
.018
(77)
128:1
Purple
.014
(79)
256:1
Pink
.010
(87)
384:1
Lt. Purple
.009
(89)
512:1
Measurement of Concentration:
You can determine the dispensed water-to-product ratio for any metering tip size and product viscosity. All that
is required is to operate the primed dispenser for a minute or so and note two things: the amount of dispensed
water/product mixture, and the amount of concentrate used in preparation of the solution dispensed. The wa-
ter-to-product ratio is then calculated as follows:
Dilution (X) = Amount of Mixed Solution -- Amount of Concentrate Drawn
Amount of Concentrate Drawn
Dilution ratio, then, equals X parts water to one part concentrate (X:1). If the test does not yield the desired ratio,
choose a different tip and repeat the test. Alternative methods to this test are 1) pH (using litmus paper), and 2)
titration. Contact your concentrate supplier for further information on these alternative methods and the materials
required to perform them.
PARTS LIST (Refer to diagram)
Key #
Part Number
Description
1
238100
Strainer washer
2
2767-K
Connector swivel
3
10091700
Brass top manifold
4
10075925
Pipe plug
5
10084020
Ball valve (includes a)
a
10088100
Yellow handle sleeve
6
10067810
Pipe nipple
7
440800
3.5 GPM eductor
8
10069270
Check valve - Viton*
9
506502
Swivel nut
10
276800
Swivel stem, short
11
10091710
Brass bottom manifold
12
10005803
Nut
13
10091720
Cover
14
605400
Hose hanger
15
10084701
Hex nipple
CONVERSION CHART:
Ratio Equivalents to
Standard Measures
Ratio
%
Oz./Gal.
128
1:1
50.0
64
2:1
33.3
32
4:1
20.0
21
6:1
14.3
16
8:1
11.1
14
9:1
10.0
8
16:1
5.9
6
24:1
4.0
4
32:1
3.0
3
48:1
2.0
2
64:1
1.5
1
128:1
0.8
1/2
256:1
0.4
1/4
512:1
0.2
Key # Part Number
Description
16
326001
Hose barb, 3/8"NPT x 1/2" barb
17
608300
Hose clamp
18
90087108
Hose, 1/2"ID x 2.88"
19
10027209
Metering tip kit
20
500814
Suction tube
21
509900
Ceramic weight
22
609600
Foot strainer
*EPDM check valve available: order 10069271
HydroChem Parts Diagram:
4
5
6
7
8
9
10
11
12
13
14
2
1
3
16
17
18
17
16
15
19
20
21
22